MT29FxG Datasheet by Micron Technology Inc.

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Products and specifications discussed herein are subject to change by Micron without notice.
2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Features
PDF: 09005aef818a56a7 / Source: 09005aef81590bdd Micron Technology, Inc., reserves the right to change products or specifications without notice.
2gb_nand_m29b__1.fm - Rev. I 1/06 EN 1©2004 Micron Technology, Inc. All rights reserved.
NAND Flash Memory
MT29F2G08AABWP/MT29F2G16AABWP
MT29F4G08BABWP/MT29F4G16BABWP
MT29F8G08FABWP
Features
• Organization:
•Page size:
x8: 2,112 bytes (2,048 + 64 bytes)
x16: 1,056 words (1,024 + 32 words)
Block size: 64 pages (128K + 4K bytes)
Device size: 2Gb: 2,048 blocks; 4Gb: 4,096 blocks;
8Gb: 8,192 blocks
Read performance:
Random read: 25µs
Sequential read: 30ns (3V x8 only)
Write performance:
Page program: 300µs (TYP)
Block erase: 2ms (TYP)
Endurance: 100,000 PROGRAM/ERASE cycles
Data retention: 10 years
First block (block address 00h) guaranteed to be
valid without ECC (up to 1,000 PROGRAM/ERASE
cycles)
•V
CC: 2.7V–3.6V
Automated PROGRAM and ERASE
Basic NAND command set:
PAGE READ, RANDOM DATA READ, READ ID,
READ STATUS, PROGRAM PAGE, RANDOM DATA
INPUT, PROGRAM PAGE CACHE MODE, INTER-
NAL DATA MOVE, INTERNAL DATA MOVE with
RANDOM DATA INPUT, BLOCK ERASE, RESET
•New commands:
PAGE READ CACHE MODE
READ UNIQUE ID (contact factory)
READ ID2 (contact factory)
Operation status byte provides a software method of
detecting:
PROGRAM/ERASE operation completion
PROGRAM/ERASE pass/fail condition
•Write-protect status
Ready/busy# (R/B#) pin provides a hardware
method of detecting PROGRAM or ERASE cycle
completion
PRE pin: prefetch on power up
WP# pin: hardware write protect
Figure 1: 48-Pin TSOP Type 1
Options Marking
•Density:
2Gb (single die) MT29F2GxxAAB
4Gb (dual-die stack) MT29F4GxxBAB
8Gb (quad-die stack) MT29F8GxxFAB
Device width:
x8 MT29Fxx08x
x16 MT29Fxx16x
•Configuration: # of
die
# of
CE#
# of
R/B#
111 A
211 B
422 F
•V
CC: 2.7V–3.6V A
Second generation die B
•Package:
48 TSOP type I (lead-free) WP
48 TSOP type I (NEW version, WA
8Gb device only, lead-free)
48 TSOP type I (contact factory) WG
Operating temperature:
Commercial (0°C to 70°C) None
Extended temperature (-40°C to +85°C) ET
E
PDF: 09005aef818a56a7 / Source: 09005aef81590bdd Micron Technology, Inc., reserves the right to change products or specifications without notice.
2gb_nand_m29b__1.fm - Rev. I 1/06 EN 2©2004 Micron Technology, Inc. All rights reserved.
2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Part Numbering Information
Part Numbering Information
Micron® NAND Flash devices are available in several different configurations and
densities. (See Figure 2.)
Figure 2: Part Number Chart
Valid Part Number Combinations
After building the part number from the part numbering chart above, verify that the part
number is valid using the Micron Parametric Part Search Web site at
http://www.micron.com/partsearch to verify that the part number is offered and valid.
If the device required is not on this list, contact the factory.
MT 29F 2G 08 A A B WP ES
Micron Technology
Product Family
29F = Single-Supply NAND Flash Memory
Density
2G = 2Gb
4G = 4Gb
8G = 8Gb
Device Width
08 = 8 bits
16 = 16 bits
Operating Voltage Range
A = 3.3V (2.70V–3.60V)
Production Status
Blank = Production
ES = Engineering Sample
MS = Mechanical Sample
Operating Temperature Range
Blank = Commercial (0°C to +70°C)
ET = Extended (–40° to +85°C)
Reserved for Future Use
Reserved for Future Use
Package Codes
WP = 48-pin TSOP I (lead-free)
WA = 48-pin TSOP I (new version,
8Gb device only, lead-free)
WG = 48-pin TSOP I (contact factory)
Generation
A = 1st Generation Die
B = 2nd Generation Die
C = 3rd Generation Die
Classification
# of die # of CE# # of R/B# I/O
A 1 1 1 Common
B 2 1 1 Common
F 4 2 2 Common
PDF: 09005aef818a56a7 / Source: 09005aef81590bdd Micron Technology, Inc., reserves the right to change products or specifications without notice.
2gb_nand_m29bTOC.fm - Rev. I 1/06 EN 3©2004 Micron Technology, Inc. All rights reserved.
2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Table of Contents
Table of Contents
Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Part Numbering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Valid Part Number Combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Bus Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Control Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Address Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Data Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
READs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Ready/Busy# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Minimum Rp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Power-On AUTO-READ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Command Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
READ Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
PAGE READ 00h-30h. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
RANDOM DATA READ 05h-E0h. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
PAGE READ CACHE MODE START 31h; PAGE READ CACHE MODE START LAST 3Fh. . . . . . . . . . . . . . . . . .24
READ ID 90h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
READ STATUS 70h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
PROGRAM Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
PROGRAM PAGE 80h-10h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
SERIAL DATA INPUT 80h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
RANDOM DATA INPUT 85h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
PROGRAM PAGE CACHE MODE 80h-15h. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Internal Data Move . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
READ FOR INTERNAL DATA MOVE 00h-35h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
INTERNAL DATA MOVE 85h-10h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
BLOCK ERASE Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
BLOCK ERASE 60h-D0h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
RESET Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
RESET FFh. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
WRITE PROTECT Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Error Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
VCC Power Cycling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Timing Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Package Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
List of Figures
PDF: 09005aef818a56a7 / Source: 09005aef81590bdd Micron Technology, Inc., reserves the right to change products or specifications without notice.
2gb_nand_m29bLOF.fm - Rev. I 1/06 EN 4©2004 Micron Technology, Inc. All rights reserved.
List of Figures
Figure 1: 48-Pin TSOP Type 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Figure 2: Part Number Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Figure 3: NAND Flash Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Figure 4: Pin Assignment (Top View) 48-Pin TSOP Type 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Figure 5: Memory Map x8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Figure 6: Memory Map x16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Figure 7: Array Organization for MT29F2G08AxB (x8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Figure 8: Array Organization for MT29F2G16AxB (x16) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Figure 9: Array Organization for MT29F4G08BxB and MT29F8G08FxB (x8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Figure 10: Array Organization for MT29F4G16BxB (x16) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Figure 11: Time Constants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Figure 12: READY/BUSY# Open Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Figure 13: tR and tF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Figure 14: Iol vs. Rp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Figure 15: TC vs. Rp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Figure 16: First Page Power-On AUTO-READ (3V VCC only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Figure 17: AC Waveforms During Power Transitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Figure 18: PAGE READ Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Figure 19: RANDOM DATA READ Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Figure 20: PAGE READ CACHE MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Figure 21: READ ID Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Figure 22: Status Register Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Figure 23: PROGRAM and READ STATUS Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Figure 24: RANDOM DATA INPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Figure 25: PROGRAM PAGE CACHE MODE Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Figure 26: INTERNAL DATA MOVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Figure 27: INTERNAL DATA MOVE with RANDOM DATA INPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Figure 28: BLOCK ERASE Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Figure 29: RESET Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Figure 30: ERASE Enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Figure 31: ERASE Disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Figure 32: PROGRAM Enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Figure 33: PROGRAM Disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Figure 34: COMMAND LATCH Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Figure 35: ADDRESS LATCH Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Figure 36: INPUT DATA LATCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Figure 37: SERIAL ACCESS Cycle After READ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Figure 38: STATUS READ Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Figure 39: PAGE READ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Figure 40: READ Operation with CE# “Don’t Care” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Figure 41: RANDOM DATA READ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Figure 42: PAGE READ CACHE MODE Timing Diagram, Part 1 of 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Figure 43: PAGE READ CACHE MODE Timing Diagram, Part 2 of 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Figure 44: PAGE READ CACHE MODE Timing without R/B#, Part 1 of 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Figure 45: PAGE READ CACHE MODE Timing without R/B#, Part 2 of 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Figure 46: READ ID Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Figure 47: Program Operation with CE# “Don’t Care” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Figure 48: PROGRAM PAGE Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Figure 49: PROGRAM PAGE Operation with RANDOM DATA INPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Figure 50: INTERNAL DATA MOVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Figure 51: PROGRAM PAGE CACHE MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
List of Figures
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Figure 52: PROGRAM PAGE CACHE MODE Ending on 15h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Figure 53: BLOCK ERASE Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Figure 54: RESET Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Figure 55: 48-Pin TSOP Type I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
List of Tables
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List of Tables
Table 1: Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Table 2: Array Addressing: MT29F2G08AxB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Table 3: Array Addressing: MT29F2G16AxB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Table 4: Array Addressing: MT29F4G08BxB and MT29F8G08FxB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Table 5: Array Addressing: MT29F4G16BxB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Table 6: Mode Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Table 7: Command Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Table 8: Device ID and Configuration Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Table 9: Status Register Bit Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Table 10: Status Register Contents After RESET Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Table 11: Absolute Maximum Ratings by Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Table 12: Recommended Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Table 13: DC and Operating Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Table 14: Valid Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Table 15: Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Table 16: Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Table 17: AC Characteristics: Command, Data, and Address Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Table 18: AC Characteristics: Normal Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Table 19: PROGRAM/ERASE Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
General Description
General Description
NAND technology provides a cost-effective solution for applications requiring high-
density solid-state storage. The MT29F2G08AxB and MT29F2G16AxB are 2Gb NAND
Flash memory devices. The MT29F4G08BxB and MT29F4G16BxB are two-die stacks that
operate as a single 4Gb device. The MT29F8G08FAB is a four-die stack that operates as
two independent 4Gb devices (MT29F4G08BxB), providing a total storage capacity of
8Gb in a single, space-saving package. Micron NAND Flash devices include standard
NAND features as well as new features designed to enhance system-level performance.
Micron NAND Flash devices use a highly multiplexed 8- or 16-bit bus (I/O[7:0] or
I/O[15:0]) to transfer data, addresses, and instructions. The five command pins (CLE,
ALE, CE#, RE#, WE#) implement the NAND command bus interface protocol. Three
additional pins control hardware write protection (WP#), monitor device status (R/B#),
and initiate the auto-read feature (PRE—3V device only). Note that the PRE function is
not supported on extended-temperature devices.
This hardware interface creates a low-pin-count device with a standard pinout that is
the same from one density to another, allowing future upgrades to higher densities with-
out board redesign.
MT29F2G and MT29F4G devices contain 2,048 and 4,096 erasable blocks respectively.
Each block is subdivided into 64 programmable pages. Each page consists of 2,112 bytes
(x8) or 1,056 words (x16). The pages are further divided into a 2,048-byte data storage
region with a separate 64-byte area on the x8 device; and on the x16 device, separate
1,024-word and 32-word areas. The 64-byte and 32-word areas are typically used for
error management functions.
The contents of each 2,112-byte page can be programmed in 300µs, and an entire 132K-
byte/66K word block can be erased in 2ms. On-chip control logic automates PROGRAM
and ERASE operations to maximize cycle endurance. ERASE/PROGRAM endurance is
specified at 100,000 cycles when using appropriate error correcting code (ECC) and
error management.
Mcron‘ 222222222222222222222222 EEEEEEEEEEEEEEEEEEEEEEEE
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
General Description
Figure 3: NAND Flash Functional Block Diagram
Note: The PRE function is not supported on extended-temperature devices.
Figure 4: Pin Assignment (Top View) 48-Pin TSOP Type 1
Notes: 1. CE2# and R/B2# on 8Gb device only. These pins are NC for other configurations.
2. The PRE function is not supported on extended-temperature devices.
Address Register
Data Register
Cache Register
Status Register
Command Register
CE#
VCC VSS
CLE
ALE
WE#
RE#
WP#
I/O [7:0]
I/O [15:0]
Control
Logic
I/O
Control
R/B#
Row Decode
Column Decode
x8
NC
NC
NC
NC
NC
R/B2#1
R/B#
RE#
CE#
CE2#1
NC
Vcc
Vss
NC
NC
CLE
ALE
WE#
WP#
DNU
DNU
DNU
NC
NC
x16
NC
NC
NC
NC
NC
NC
R/B#
RE#
CE#
NC
NC
Vcc
Vss
NC
NC
CLE
ALE
WE#
WP#
DNU
DNU
DNU
NC
NC
x16
Vss
I/O15
I/O7
I/O14
I/O6
I/O13
I/O5
I/O12
I/O4
NC
PRE/VSS2
Vcc
NC
NC
NC
I/O11
I/O3
I/O10
I/O2
I/O9
I/O1
I/O8
I/O0
Vss
x8
NC
NC
NC
NC
I/O7
I/O6
I/O5
I/O4
NC
NC
PRE/VSS2
Vcc
Vss
NC
NC
NC
I/O3
I/O2
I/O1
I/O0
NC
NC
NC
NC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
General Description
Notes: 1. The PRE function is not supported on extended-temperature devices.
Table 1: Pin Descriptions
Symbol Type Description
ALE Input Address latch enable: During the time ALE is HIGH, address information is
transferred from I/O[7:0] into the on-chip address register upon a LOW-to-HIGH
transition on WE#. When address information is not being loaded, the ALE pin
should be driven LOW.
CE#, CE2# Input Chip enable: Gates transfers between the host system and the NAND device. Once
the device starts a PROGRAM or ERASE operation, the chip enable pin can be de-
asserted. For the 8Gb configuration, CE# controls the first 4Gb of memory; CE2#
controls the second 4Gb. See the Bus Operation section, starting on “Bus
Operation” on page 16 for additional operational details.
CLE Input Command latch enable: When CLE is HIGH, information is transferred from
I/O[7:0] to the on-chip command register on the rising edge of WE#. When
command information is not being loaded, the CLE pin should be driven LOW.
PRE1
(3V device only)
Input Power-on read enable: Enables the auto-read function when at Vcc. See “Bus
Operation” on page 16, for additional details.
RE# Input Read enable: Gates transfers from the NAND device to the host system.
WE# Input Write enable: Gates transfers from the host system to the NAND device.
WP# Input Write protect: Pin protects against inadvertent PROGRAM and ERASE operations.
All PROGRAM and ERASE operations are disabled when the WP# pin is LOW.
I/O[7:0]
MT29FxG08
I/O[15:0]
MT29FxG16
I/O Data inputs/outputs: The bidirectional I/O pins transfer address, data, and
instruction information. Data is output only during READ operations; at other
times the I/O pins are inputs.
R/B#, R/B2# Output Ready/busy: An open-drain, active-LOW output, that uses an external pull-up
resistor. The pin is used to indicate when the chip is processing a PROGRAM or
ERASE operation. The pin is also used during a READ operation to indicate when
data is being transferred from the array into the serial data register. Once these
operations have completed, the R/B# returns to the High-Z state. In the 8Gb
configuration, R/B# is for the 4Gb of memory enabled by CE#; R/B2# is for the 4Gb
of memory enabled by CE2#.
VCC Supply VCC: The VCC pin is the power supply pin.
VSS Supply VSS: The VSS pin is the ground connection.
DNU Do not use: Must be left floating.
NC No connect: NC pins are not internally connected. These pins can be driven or left
unconnected.
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Architecture
Architecture
These devices use NAND electrical and command interfaces. Data, commands, and
addresses are multiplexed onto the same pins. This provides a memory device with a
low pin count.
The internal memory array is accessed on a page basis. When doing reads, a page of data
is copied from the memory array into the data register. Once copied to the data register,
data is output sequentially, byte-by-byte on x8 devices, or word-by-word on x16 devices.
The memory array is programmed on a page basis. After the starting address is loaded
into the internal address register, data is sequentially written to the internal data register
up to the end of a page. After all of the page data has been loaded into the data register,
array programming is started.
In order to increase programming bandwidth, this device incorporates a cache register.
In the cache programming mode, data is first copied into the cache register and then
into the data register. Once the data is copied into the data register, programming
begins.
After the data register has been loaded and programming started, the cache register
becomes available for loading additional data. Loading the next page of data into the
cache register takes place while page programming is in process.
The INTERNAL DATA MOVE command also uses the internal cache register. Normally,
moving data from one area of external memory to another uses a large number of exter-
nal memory cycles. By using the internal cache register and data register, array data can
be copied from one page and then programmed into another without using external
memory cycles.
Addressing
NAND Flash devices do not contain dedicated address pins. Addresses are loaded using
a five-cycle sequence as shown in Figures 7 and 8, on pages 12 and 13 respectively.
Table 2 on page 12 presents address functions internal to the x8 device; Table 3 on
page 13 covers the same functions for the x16 device. See Figures 5 and 6 on page 11 for
additional memory mapping and addressing details.
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Addressing
Figure 5: Memory Map x8
Figure 6: Memory Map x16
Note: Block address and page address = actual page address.
A11
A17 A12
A28 (4Gb: A29) A18
A11
A0
A0
A5
page 63-0
Column Address within a page
Page Address within a block
Block Address
000BF83Fh
00080000h
0007F83Fh
00040000h
0003F83Fh
0
1FFFF83Fh
1FFC0000h
(4Gb: 3FFFF83Fh)
(4Gb: 3FFC0000h)
Spare Address within a page
A10
A16 A11
A27 (4Gb: A28) A17
A10
A0
A0
A4
page 63-0
Column Address
Page Address within a block
Block Address
005F41Fh
0040000h
003F41Fh
0020000h
001F41Fh
0
FFFF41Fh
FFE0000h
Spare Address within a page
(4Gb: 1FFFFC1Fh)
(4Gb: 1FFE0000h)
up a
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Addressing
Figure 7: Array Organization for MT29F2G08AxB (x8)
Note: CAx = column address; RAx = row address.
Table 2: Array Addressing: MT29F2G08AxB
Cycle I/O7 I/O6 I/O5 I/O4 I/O3 I/O2 I/O1 I/O0
First CA7 CA6 CA5 CA4 CA3 CA2 CA1 CA0
Second LOW LOW LOW LOW CA11 CA10 CA9 CA8
Third RA19 RA18 RA17 RA16 RA15 RA14 RA13 RA12
Fourth RA27 RA26 RA25 RA24 RA23 RA22 RA21 RA20
Fifth LOW LOW LOW LOW LOW LOW LOW RA28
Cache Register
Data Register
2,048 blocks
per device
1 Block
642,048
642,048
2,112 bytes
I/O 7
I/O 0
64 pages = 1 block
(128K + 4K) bytes
1 page = (2K + 64 bytes)
1 block = (2K + 64) bytes x 64 pages
= (128K + 4K) bytes
1 device = (2K + 64) bytes x 64 pages
x 2,048 blocks
= 2,112 Mb
up a
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Addressing
Figure 8: Array Organization for MT29F2G16AxB (x16)
Notes: 1. CAx = column address; RAx = row address.
2. I/O[15:8] are not used during the addressing sequence and should be driven LOW.
Table 3: Array Addressing: MT29F2G16AxB
Cycle I/O[15:8] I/O7 I/O6 I/O5 I/O4 I/O3 I/O2 I/O1 I/O0
First LOW CA7 CA6 CA5 CA4 CA3 CA2 CA1 CA0
Second LOW LOW LOW LOW LOW LOW CA10 CA9 CA8
Third LOW RA18 RA17 RA16 RA15 RA14 RA13 RA12 RA11
Fourth LOW RA26 RA25 RA24 RA23 RA22 RA21 RA20 RA19
Fifth LOW LOW LOW LOW LOWLOWLOWLOWRA27
Cache Register
Data Register
2,048 blocks
per device
1 Block
321,024
321,024
1,056 words
I/O 15
I/O 0
64 pages = 1 block
(64K + 2K) words
1 page = (1K + 32) words
1 block = (1K + 32) words x 64 pages
= (64K + 2K) words
1 device = (1K + 32) words x 64 pages
x 2,048 blocks
= 2,112 Mb
up a
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Addressing
Figure 9: Array Organization for MT29F4G08BxB and MT29F8G08FxB (x8)
Note: For the 8Gb MT29F8G08F, the 4Gb array organization shown here applies to each chip
enable (CE# and CE2#).
Notes: 1. Die address boundary: 0 = 0 – 2Gb, 1 = 2Gb – 4Gb.
Table 4: Array Addressing: MT29F4G08BxB and MT29F8G08FxB
CAx = column address; RAx = row address.
Cycle I/O7 I/O6 I/O5 I/O4 I/O3 I/O2 I/O1 I/O0
First CA7CA6CA5CA4CA3CA2CA1CA0
Second LOW LOW LOW LOW CA11 CA10 CA9 CA8
Third RA19 RA18 RA17 RA16 RA15 RA14 RA13 RA12
Fourth RA27 RA26 RA25 RA24 RA23 RA22 RA21 RA20
Fifth LOW LOW LOW LOW LOW LOW RA291RA28
Cache Register
Data Register
4,096 blocks
1 Block
642,048
642,048
2,112 bytes
I/O 7
I/O 0
64 pages = 1 block
(128K + 4K) bytes
1 page = (2K + 64 bytes)
1 block = (2K + 64) bytes x 64 pages
= (128K + 4K) bytes
1 device = (2K + 64) bytes x 64 pages
x 4,096 blocks
= 4,224 Mb
up a
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Addressing
Figure 10: Array Organization for MT29F4G16BxB (x16)
Notes: 1. Die address boundary: 0 = 0 – 2Gb, 1 = 2Gb – 4Gb.
2. I/O[15:8] are not used during the addressing sequence and should be driven LOW.
Table 5: Array Addressing: MT29F4G16BxB
CAx = column address; RAx = row address.
Cycle I/O[15:8] I/O7 I/O6 I/O5 I/O4 I/O3 I/O2 I/O1 I/O0
First LOW CA7 CA6 CA5 CA4 CA3 CA2 CA1 CA0
Second LOW LOW LOW LOW LOW LOW CA10 CA9 CA8
Third LOW RA18RA17RA16RA15RA14RA13RA12RA11
Fourth LOW RA26RA25RA24RA23RA22RA21RA20RA19
Fifth LOW LOW LOW LOW LOW LOW LOW RA281RA27
Cache Register
Data Register
4,096 blocks
per device
1 Block
321,024
321,024
1,056 words
I/O 15
I/O 0
64 pages = 1 block
(64K + 2K) words
1 page = (1K + 32) words
1 block = (1K + 32) words x 64 pages
= (64K + 2K) words
1 device = (1K + 32) words x 64 pages
x 4,096 blocks
= 4,224 Mb
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Bus Operation
Bus Operation
The bus on the MT29Fxxx devices is multiplexed. Data I/O, addresses, and commands
all share the same pins. I/O pins I/O[15:8] are used only for data in the x16 configura-
tion. Addresses and commands are always supplied on I/O[7:0].
The command sequence normally consists of a command latch cycle, an ADDRESS
LATCH cycle, and a DATA cycle—either READ or WRITE.
Control Signals
CE#, WE#, RE#, CLE, ALE and WP# control Flash device READ and WRITE operations.
On the 8Gb MT29F8G08FAB, CE# and CE2# each control independent 4Gb arrays. CE2#
functions the same as CE# for its own array; all operations described for CE# also apply
to CE2#.
CE# is used to enable the device. When CE# is LOW and the device is not in the busy
state, the Flash memory will accept command, data, and address information.
When the device is not performing an operation, the CE# pin is typically driven HIGH
and the device enters standby mode. The memory will enter standby if CE# goes HIGH
while data is being transferred and the device is not busy. This helps reduce power con-
sumption. See Figure 40 on page 45 and Figure 47 on page 50 for examples of CE# “Dont
Care” operations.
The CE# “Dont Care” operation allows the NAND Flash to reside on the same asynchro-
nous memory bus as other Flash or SRAM devices. Other devices on the memory bus
can then be accessed while the NAND Flash is busy with internal operations. This capa-
bility is important for designs that require multiple NAND Flash devices on the same
bus. One device can be programmed while another is being read.
A HIGH CLE signal indicates that a command cycle is taking place. A HIGH ALE signal
signifies that an address input cycle is occurring.
Commands
Commands are written to the command register on the rising edge of WE# when:
CE# and ALE are LOW, and
•CLE is HIGH, and
The device is not busy
The exceptions to this are the READ STATUS and RESET commands. Commands are
transferred to the command register on the rising edge of WE#. See Figure 34 on page 42.
Commands are input on I/O[7:0] only. For devices with a x16 interface, I/O[15:8] must
be written with zeros when issuing a command.
Address Input
Addresses are written to the address register on the rising edge of WE# when:
CE# and CLE are LOW, and
•ALE is HIGH, and
The device is not busy
Addresses are input on I/O[7:0] only. For devices with a x16 interface, I/O[15:8] must be
written with zeros when issuing an address.
Generally all five ADDRESS cycles are written to the device. An exception to this is the
BLOCK ERASE command, which requires only three ADDRESS cycles. See “BLOCK
ERASE Operation” on page 33 for details.
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Bus Operation
RANDOM DATA INPUT and OUTPUT commands need only column addresses, so only
two ADDRESS cycles are required. Refer to the command descriptions to determine the
addressing requirements for each command.
Data Input
Data is written to the data register on the rising edge of WE# when:
CE#, CLE, and ALE are LOW, and
The device is not busy
Data is input on I/O[7:0] for x8 devices, and I/O[15:0] on x16 devices. See Figure 36 on
page 43 for additional data input details.
READs
After a READ command is sent to the memory device, data is transferred from the mem-
ory array to the data register in tR. Typically tR is 25µs. When data is available in the data
register, it is clocked out of the part by RE# going LOW. See Figure 39 on page 44 for
detailed timing information.
The READ STATUS (70h) command or the R/B# signal can be used to determine when
the device is ready. See the STATUS READ command section on page 27 for details.
Ready/Busy#
The R/B# output provides a hardware method of indicating the completion of a PRO-
GRAM/ERASE/READ operation. The signal is typically HIGH, and transitions to LOW
after the appropriate command is written to the device. The signal pins open-drain
driver enables multiple R/B# outputs to be OR-tied. The signal requires a pull-up resis-
tor for proper operation. The READ STATUS command can be used in place of R/B#.
Typically R/B# would be connected to an interrupt pin on the system controller. See
Figure 12 on page 18.
On the 8Gb MT29F8G08FAB, R/B# provides an indication for the 4Gb section enabled by
CE#, and R/B2# does the same for the 4Gb section enabled by CE2#. R/B# and R/B2# can
be tied together, or they can be used separately to provide independent indications for
each 4Gb section.
The combination of Rp and capacitive loading of the R/B# circuit determines the rise
time of the R/B# pin. The actual value used for Rp (Rp = resistance of pull-up resistor)
depends on the system timing requirements. Large values of Rp cause R/B# to be
delayed significantly. At the 10- to 90-percent points on the R/B# waveform, rise time is
approximately two time constants (TC).
Figure 11: Time Constants
The fall time of the R/B# signal is determined mainly by the output impedance of the
R/B# pin and the total load capacitance.
Refer to Figure 13 on page 18, and Figure 14 on page 19, which depict approximate Rp
values using a circuit load of 100pF.
The minimum value for Rp is determined by the output drive capability of the R/B# sig-
nal, the output voltage swing, and VCC.
TC = R × C
Where R = Rp (resistance of pull-up resistor), and C = total capacitive load.
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Bus Operation
Minimum Rp
Figure 12: READY/BUSY# Open Drain
Figure 13: tR and tF
Notes: 1. tR and tF calculated at 10 percent and 90 percent points.
2. tR dependent on external capacitance and resistive loading and output transistor
impedance.
3. tR primarily dependent on external pull-up resistor and external capacitive loading.
4. tF 10ns at 3.3V.
5. See TC values in Figure 15 on page 19 for approximate Rp value and TC.
Where ΣIL is the sum of the input currents of all devices tied to the R/B# pin.
Rp (MIN, 3.3V part) =
VCC (MAX) – VOL (MAX)
IOL + ΣIL
=
3.2V
8mA + ΣIL
Rp
R/B#
Open drain output
VCC
GND
Device
IOL
3.50
3.00
2.50
2.00
1.50
1.00
0.50
0.00
-1 0 2 4 0 2 4 6
tFtR
TC
V
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Bus Operation
Figure 14: IOL vs. Rp
Figure 15: TC vs. Rp
3.50mA
3.00mA
2.50mA
2.00mA
1.50mA
1.00mA
0.50mA
0.00mA
0 2000 4000 6000 8000 10000 12000
IOL@3.60V (max)
Rp
I
1.20µs
1.00µs
800ns
600ns
400ns
200ns
0ns
0 2k
4k 6k
8k 10k 12k
I
OL
@3.60V (max)
RC = TC
C = 100pF
Rp
T
uuuuu
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Bus Operation
Notes: 1. WP# should be biased to CMOS HIGH or LOW for standby.
2. PRE should be tied to VCC or ground. Do not transition PRE during device operations.
The PRE function is not supported on extended-temperature devices.
3. Mode selection settings for this table: H = Logic level HIGH; L = Logic level LOW;
X = VIH or VIL.
Table 6: Mode Selection
CLE ALE CE# WE# RE# WP#1PRE2Mode
HLL HX X
Read mode Command input
LHL HX X Address input
HLL HH X
Write mode Command input
LHL HH X Address input
LLL HH X
Data input
LLLH X X
Sequential read and data output
LLLHHX X
During read (busy)
XXXXXH X
During program (busy)
XXXXXH X
During erase (busy)
XXXXXL X
Write protect
XXHXX0V/V
CC 0V/VCC Standby
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Bus Operation
Power-On AUTO-READ
During power-on, with the PRE pin at VCC, 3V VCC devices automatically transfer the
first page of the memory array to the data register without requiring a command or
address-input sequence. As VCC reaches approximately 2.5V, the internal voltage detec-
tor initiates the power-on AUTO-READ function.
R/B# will stay LOW (tRPRE) while the first page of data is copied into the data register.
See Table 18 on page 41 for the tRPRE value. Once the READ is complete and R/B# goes
HIGH, RE# can be pulsed to output the first page of data.
The PRE function is not supported on extended-temperature devices.
Figure 16: First Page Power-On AUTO-READ (3V VCC only)
Notes: 1. Verified per device characterization; not 100 percent tested on all devices.
2. The PRE function is not supported on extended-temperature devices.
Figure 17: AC Waveforms During Power Transitions
2.5V1
Vcc
CLE
CE#
WE#
ALE
PRE
R/B#
RE#
I/Ox
tRPRE
1st 2nd 3rd n th
.....
Undefined
WE#
R/B#
WP#
Vcc
10µs
HIGH
3V device: 2.5V 3V device: 2.5V
UndefinedDon't Care
Mcron‘ START LAST AD MOVE
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Command Definitions
Command Definitions
Notes: 1. Do not cross die address boundaries when using cache operations. See Tables 4 and 5 for
definition of die address boundaries.
2. Do not cross die address boundaries when using READ for INTERNAL DATA MOVE and
PROGRAM FOR INTERNAL DATA MOVE. See Tables 4 and 5 for definition of die address
boundaries.
3. RANDOM DATA READ command limited to use within a single page.
4. RANDOM DATA INPUT for PROGRAM command limited to use within a single page.
Table 7: Command Set
Operation Cycle 1 Cycle 2 Valid During Busy
PAGE READ 00h 30h No
PAGE READ CACHE MODE START131h – No
PAGE READ CACHE MODE START LAST13Fh – No
READ for INTERNAL DATA MOVE200h 35h No
RANDOM DATA READ305h E0h No
READ ID 90h – No
READ STATUS 70h – Yes
PROGRAM PAGE 80h 10h No
PROGRAM PAGE CACHE180h 15h No
PROGRAM for INTERNAL DATA MOVE285h 10h No
RANDOM DATA INPUT for PROGRAM 485h – No
BLOCK ERASE 60h D0h No
RESET FFh – Yes
W» AMA/flW/A
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Command Definitions
READ Operations
PAGE READ 00h-30h
On initial power up, each device defaults to read mode. To enter the read mode while in
operation, write the 00h-30h command sequence to the command register along with
the five ADDRESS cycles.
Writing 00h to the command register starts the ADDRESS LATCH cycle. Five ADDRESS
cycles are input next. Finally the 30h command is loaded into the command register.
While monitoring the read status to determine when the tR (transfer from Flash array to
data register) is complete, the user must re-issue the READ (00h) command to make the
change from STATUS to DATA. (See Figure 44 on page 48 and Figure 45 on page 49 for
examples.) After the READ command has been re-issued, pulsing the RE# line will result
in outputting data, starting from the initial column address.
A serial page read sequence outputs a complete page of data. After 30h is written, the
page data is transferred to the data register, and R/B# goes LOW during the transfer.
When the transfer to the data register is complete, R/B# returns HIGH. At this point, data
can be read from the device. Starting from the initial column address to the end of the
page, read the data by repeatedly pulsing RE# at the maximum tRC rate. (See Figure 18
on page 23.)
Figure 18: PAGE READ Operation
RE#
CE#
ALE
CLE
I/Ox 00h Address (5 Cycles) Data Output (Serial Access)
30h
R/B#
WE#
tR
Don‘t Care
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Command Definitions
RANDOM DATA READ 05h-E0h
The RANDOM DATA READ command enables the user to specify a new column address
so the data at single or multiple addresses can be read. The random read mode is
enabled after a normal PAGE READ (00h-30h sequence).
Random data can be output after the initial page read by writing an 05h-E0h command
sequence along with the new column address (two cycles).
The RANDOM DATA READ command can be issued without limit within the page.
Only data on the current page can be read. Pulsing the RE# pin outputs data sequen-
tially. See Figure 19 on page 24.
Figure 19: RANDOM DATA READ Operation
PAGE READ CACHE MODE START 31h; PAGE READ CACHE MODE START LAST 3Fh
Micron NAND Flash devices have a cache register that can be used to increase READ
operation speed when accessing sequential pages in a block.
First, a normal PAGE READ (00h-30h) command sequence is issued. (See Figure 20 on
page 25 for operation details.) The R/B# signal goes LOW for tR during the time it takes
to transfer the first page of data from the memory to the data register. After R/B# returns
to HIGH, the PAGE READ CACHE MODE START (31h) command is latched into the
command register. R/B# goes LOW for tDCBSYR1 while data is being transferred from
the data register to the cache register. Once the data register contents are transferred to
the cache register, another PAGE READ is automatically started as part of the 31h com-
mand. Data is transferred from the next sequential page of the memory array to the data
register during the same time data is being read serially (pulsing of RE#) from the cache
register. If the total time to output data exceeds tR, then the PAGE READ is hidden.
The second and subsequent pages of data are transferred to the cache register by issuing
additional 31h commands. R/B# will stay LOW up to tDCBSYR2. This time can vary,
depending on whether the previous memory-to-data-register transfer was completed
prior to issuing the next 31h command. If the data transfer from memory to the data reg-
ister is not completed before the 31h command is issued, R/B# stays LOW until the
transfer is complete.
It is not necessary to output a whole page of data before issuing another 31h command.
R/B# will stay LOW until the previous PAGE READ is complete and the data has been
transferred to the cache register.
To read out the last page of data, the PAGE READ CACHE MODE START LAST (3Fh)
command is issued. This command transfers data from the data register to the cache
register without issuing another PAGE READ. (See Figure 20 on page 25.)
RE#
I/Ox 00h Address
(5 Cycles) Data Output Data Output
30h 05h Address
(2 Cycles) E0h
R/B#
t
R
CU LF 2
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Command Definitions
Figure 20: PAGE READ CACHE MODE
RE#
CE#
ALE
CLE
I/Ox 00h Address (5 Cycles) Data Output (Serial Access) Data Output (Serial Access)
31h
30h 31h 3fh
R/B#
WE#
tR
Data Output (Serial Access)
tDCBSYR1 tDCBSYR2 tDCBSYR2
Don‘t Care
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Command Definitions
READ ID 90h
The READ ID command is used to read the 4 bytes of identifier codes programmed into
the devices. The READ ID command reads a 4-byte table that includes Manufacturers
ID, device configuration, and part-specific information. See Table 8 on page 27, which
shows complete listings of all configuration details.
Writing 90h to the command register puts the device into the read ID mode. The com-
mand register stays in this mode until another valid command is issued. (See Figure 21.)
Figure 21: READ ID Operation
Notes: 1. See Table 8 on page 27.
Device
ID1
Don't Care
WE#
CE#
ALE
CLE
RE#
I/Ox
Address, 1 Cycle
90h 00h
Manufacturer
ID1
Byte 2
Byte 0 Byte 1 Byte 31
tAR
tREA
tWHR
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Command Definitions
Notes: 1. b = binary, h = hex
2. The MT29F8G08FAB device ID code reflects the configuration of each 4Gb section.
READ STATUS 70h
These NAND Flash devices have an 8-bit status register that the software can read dur-
ing device operation. On the x16 device, I/O[15:8] are “0” when reading the status regis-
ter. Table 9 on page 28 describes the status register.
After the READ STATUS command has been issued to the NAND Flash device, all subse-
quent READ cycles will output data from the status register until another command is
issued. Note that the RE# pin can be toggled multiple times without issuing a new READ
STATUS command, as shown in Figure 21. Each time the RE# pin is toggled, the updated
status will be output on I/O[7:0].
In addition, after a READ STATUS command has been issued to the NAND Flash device,
the status register provides continually updated output on I/O[7:0] as long as CE# and
RE# are held LOW, i.e., RE# does not have to be toggled.
Note that MT29FxGxxxAB devices do not support a READ STATUS operation in which
the READ STATUS (70h) command is repeatedly issued after each RE# toggle.
Additional details regarding READ STATUS implementation are available in Micron
technical note TN-29-13 at: www.micron.com/products/nand/massstorage/technote.
Table 8: Device ID and Configuration Codes
Options I/O7 I/O6 I/O5 I/O4 I/O3 I/O2 I/O1 I/O0 Value1Notes
Byte 0 Manufacturer ID
Micron 001011002Ch
Byte 1 Device ID
MT29F2G08AAB 2Gb, x8, 3V 11011010DAh
MT29F2G16AAB 2Gb, x16, 3V 11001010CAh
MT29F4G08BAB 4Gb, x8, 3V 11011100DCh
MT29F4G16BAB 4Gb, x16, 3V 11001100CCh
MT29F8G08FAB 8Gb, x8, 3V 11011100DCh 2
Byte 2
Byte value Dont Care xxxxxxxxXXh
Byte 3
Page size 2KB 01 01b
Spare area size (bytes) 64 01 01b
Block size (w/o spare) 128KB 0 1 01b
Organization x8 00b
x16 11b
Reserved 00b
Byte value x8 0001010115h
Byte value x16 0101010155h
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Command Definitions
Figure 22: Status Register Operation
While monitoring the read status to determine when the tR (transfer from Flash array to
data register) is complete, the user must re-issue the READ (00h) command to make the
change from STATUS to DATA. After the READ command has been re-issued, pulsing
the RE# line will output data, starting from the initial column address.
Notes: 1. Status register bit 5 is “0” during the actual programming operation. If cache mode is
used, this bit will be “1” when all internal operations are complete.
2. Status register bit 6 is “1” when the cache is ready to accept new data. R/B# follows bit 6.
See Figure 20 on page 25, and Figure 25 on page 30.
Table 9: Status Register Bit Definition
SR
Bit
Page
Program
Program Page
Cache Mode Page Read
Page Read
Cache Mode Block Erase Definition
0 Pass/fail Pass/fail (N) Pass/fail “0” = Successful PROGRAM/ERASE
“1” = Error in PROGRAM/ERASE
1 Pass/fail (N-1) “0” = Successful PROGRAM/ERASE
“1” = Error in PROGRAM/ERASE
2– – –
“0”
3– – –
“0”
4– – –
“0”
5 Ready/busy Ready/busy1Ready/busy Ready/busy1Ready/busy “0” = Busy
“1” = Ready
6 Ready/busy Ready/busy
cache2Ready/busy Ready/busy
cache2Ready/busy “0” = Busy
“1” = Ready
7 Write protect Write protect Write protect Write protect Write protect “0” = Protected
“1” = Not protected
[15:8] “0”
70h
CE#
CLE
WE#
RE#
I/Ox StatusStatus
Toggle RE# as required
Status
tREA
tCLR
tCLEA
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Command Definitions
PROGRAM Operations
PROGRAM PAGE 80h-10h
Micron NAND Flash devices are inherently page-programmed devices. Within a block,
the pages must be programmed consecutively from the least significant bit (LSB) page of
the block to most significant bit (MSB) pages of the block. Random page address pro-
gramming is prohibited.
Micron NAND flash devices also support partial-page programming operations. This
means that any single bit can only be programmed one time before an erase is required;
however, the page can be partitioned such that a maximum of eight programming oper-
ations are allowed before an erase is required.
SERIAL DATA INPUT 80h
PAGE PROGRAM operations require loading the SERIAL DATA INPUT (80h) command
into the command register, followed by five ADDRESS cycles, then the data. Serial data
is loaded on consecutive WE# cycles starting at the given address. The PROGRAM (10h)
command is written after the data input is complete. The internal write state machine
automatically executes the proper algorithm and controls all the necessary timing to
program and verify the operation. Write verification only detects “1s” that are not suc-
cessfully written to “0s.
R/B# goes LOW for the duration of array programming time, tPROG. The READ STATUS
REGISTER (70h) command and the RESET (FFh) command are the only commands valid
during the programming operation. Bit 6 of the status register will reflect the state of
R/B#. When the device reaches ready, read bit 0 of the status register to determine if the
program operation passed or failed. (See Figure 23.) The command register stays in read
status register mode until another valid command is written to it.
RANDOM DATA INPUT 85h
After the initial data set is input, additional data can be written to a new column address
with the RANDOM DATA INPUT (85h) command. The RANDOM DATA INPUT com-
mand can be used any number of times in the same page prior to issuing the PAGE
WRITE (10h) command. See Figure 24 for the proper command sequence.
Figure 23: PROGRAM and READ STATUS Operation
Figure 24: RANDOM DATA INPUT
I/Ox 80h Address (5 cycles) 10h 70h
R/B#
tPROG
Status
I/O 0 = 0 PROGRAM successful
I/O 0 = 1 PROGRAM error
DIN
I/Ox 80h Address (5 cycles) 85h Address (2 cycles) 10h 70h
R/B#
tPROG
DIN
DIN Status
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Command Definitions
PROGRAM PAGE CACHE MODE 80h-15h
Cache programming is actually a buffered programming mode of the standard PAGE
PROGRAM command. Programming is started by loading the SERIAL DATA INPUT
(80h) command to the command register, followed by five cycles of address, and a full or
partial page of data. The data is initially copied into the cache register, and the CACHE
WRITE (15h) command is then latched to the command register. Data is transferred
from the cache register to the data register on the rising edge of WE#. R/B# goes LOW
during this transfer time. After the data has been copied into the data register and R/B#
returns to HIGH, memory array programming begins.
When R/B# returns to HIGH, new data can be written to the cache register by issuing
another CACHE PROGRAM command sequence. The time that R/B# stays LOW will be
controlled by the actual programming time. The first time through equals the time it
takes to transfer the cache register contents to the data register. On the second and sub-
sequent programming passes, transfer from the cache register to the data register is held
off until current data register content has been programmed into the array.
Bit 6 (Cache R/B#) of the status register can be read by issuing the READ STATUS (70h)
command to determine when the cache register is ready to accept new data. The R/B#
pin always follows bit 6.
Bit 5 (R/B#) of the status register can be polled to determine when the actual program-
ming of the array is complete for the current programming cycle.
If just the R/B# pin is used to determine programming completion, the last page of the
program sequence must use the PROGRAM PAGE (10h) command instead of the
CACHE PROGRAM (15h) command. If the CACHE PROGRAM (15h) command is used
every time, including the last page of the programming sequence, status register bit 5
must be used to determine when programming is complete. (See Figure 25.)
Bit 0 of the status register returns the pass/fail for the previous page when bit 6 of the
status register is a “1” (ready state). The pass/fail status of the current PROGRAM opera-
tion is returned with bit 0 of the status register when bit 5 of the status register is a “1”
(ready state). (See Figure 25.)
Figure 25: PROGRAM PAGE CACHE MODE Example
Notes: 1. See Note 3, Table 19 on page 41.
2. Check I/O[6:5] for internal Ready/Busy. Check I/O[1:0] for pass fail. RE# can stay LOW or
pulse multiple times after a 70h command.
tCBSY
R/B#
I/Ox
R/B#
I/Ox
Address/
Data Input
80h 15h Address/
Data Input
80h 15h Address/
Data Input
80h 15h Address/
Data Input
80h 10h
tLPROG1
Address/
Data Input
80h 15h Address/
Data Input
80h 10h
Status2
Output
70h
tLPROG1
Status2
Output
70h
A: Without status reads
B: With status reads
tCBSY
tCBSY tCBSY
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Command Definitions
Internal Data Move
An internal data move requires two command sequences. Issue a READ for INTERNAL
DATA MOVE (00h-35h) command first, then the INTERNAL DATA MOVE (85h-10h)
command. Data moves are only supported within the die from which data is read.
READ FOR INTERNAL DATA MOVE 00h-35h
This READ command is used in conjunction with the INTERNAL DATA MOVE (85h-10h)
command. First, (00h) is written to the command register, then the internal source
address is written (five cycles). After the address is input, the READ for INTERNAL DATA
MOVE (35h) command writes to the command register. This transfers a page from
memory into the cache register.
The written column addresses are ignored even though all five ADDRESS cycles are
required.
The memory device is now ready to accept the INTERNAL DATA MOVE (85h-10h) com-
mand. Please refer to the description of this command in the following section.
INTERNAL DATA MOVE 85h-10h
After the READ for INTERNAL DATA MOVE command has been issued and R/B# goes
HIGH, the INTERNAL DATA MOVE command can be written to the command register.
This command transfers the data from the cache register to the data register and program-
ming of the new destination page begins. After the INTERNAL DATA MOVE command
and address sequence are written to the device, R/B# goes LOW while the internal con-
trol logic automatically programs the new page. The READ STATUS command and bit 6
of the status register can be used instead of the R/B# line to determine when the write is
complete. Bit 0 of the status register indicates if the operation was successful.
The RANDOM DATA INPUT (85h) command can be used during the INTERNAL DATA
MOVE command sequence to modify a word or multiple words of the original data.
First, data is copied into the cache register using the 00h-35h command sequence, then
the RANDOM DATA INPUT (85h) command is written along with the address of the data
to be modified next. New data is input on the external data pins. This copies the new
data into the cache register.
When 10h is written to the command register, the original data plus the modified data is
transferred to the data register, and programming of the new page is started. The RAN-
DOM DATA INPUT command can be issued as many times as necessary before starting
the programming sequence with 10h. (See Figures 26 and 27 on page 32.)
Because the INTERNAL DATA MOVE operation does not utilize external memory, ECC
cannot be used to check for errors before programming the data to a new page. This can
lead to a data error if the source page contains a bit error due to charge loss or charge
gain. In the case that multiple INTERNAL DATA MOVE operations are performed, these
bit errors may accumulate without correction. For this reason, it is highly recommended
that systems utilizing the INTERNAL DATA MOVE operation use a robust ECC scheme
that can correct two or more bits per sector.
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Command Definitions
Figure 26: INTERNAL DATA MOVE
Figure 27: INTERNAL DATA MOVE with RANDOM DATA INPUT
I/Ox 00h Address
(5 cycles) 35h 85h Address
(5 cycles) 10h 70h
R/B#
tPROG
tR
Status
I/Ox 00h Address
(5 cycles) 35h 85h Address
(5 cycles) Data Data85h Address
(2 cycles)
Unlimited number
of repetitions.
10h 70h Status
R/B#
t
PROG
t
R
fix/A/A/A
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Command Definitions
BLOCK ERASE Operation
BLOCK ERASE 60h-D0h
Erasing occurs at the block level. For example, the MT29F2G08xxB device has 2,048
erase blocks organized as 64 2,112-byte (2,048 + 64 bytes) pages per block. Each block is
132K bytes (128K + 4K bytes). The BLOCK ERASE command operates on one block at a
time. (See Figure 28.)
Three cycles of addresses A[28:18] are required for the x8 device, and three cycles of
addresses [27:17] are required for the x16 device. Although addresses A[17:12] (x8) and
A[16:11] (x16) are loaded, they are a “Dont Care” and are ignored for BLOCK ERASE
operations. (See Figures 5 and 6 on page 11 for addressing details.)
The actual command sequence is a two-step process. The ERASE SETUP (60h) com-
mand is first written to the command register. Then three cycles of addresses are written
to the device. Next, the ERASE CONFIRM (D0h) command is written to the command
register. At the rising edge of WE#, R/B# goes LOW and the internal write state machine
automatically controls the timing and erase-verify operations. R/B# stays LOW for the
entire tBERS erase time.
The READ STATUS REGISTER command can be used to check the status of the ERASE
operation. When bit 6 = “1” the erase operation is complete. Bit 0 indicates a pass/fail
condition where “0” = pass. (See Figure 28, and Table 9 on page 28.)
Figure 28: BLOCK ERASE Operation
RE#
CE#
ALE
CLE
I/Ox 60h Address Input (3 Cycles) Status
D0h 70h
R/B#
WE#
tBERS
Don‘t Care
I/O 0 = 0 ERASE successful
I/O 0 = 1 ERASE error
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Command Definitions
RESET Operation
RESET FFh
The RESET command is used to put the memory device into a known condition and to
abort a command sequence in progress.
RANDOM READ, PROGRAM, and ERASE commands can be aborted while the device is
in the busy state. The contents of the memory location being programmed or the block
being erased are no longer valid. The data may be partially erased or programmed, and
is invalid. The command register is cleared and is ready for the next command.
The status register contains the value E0h when WP# is HIGH; otherwise it is written
with a 60h value. R/B# goes low for tRST after the RESET command is written to the
command register. (See Figure 29 and Table 10.)
Figure 29: RESET Operation
Table 10: Status Register Contents After RESET Operation
Condition Status Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Hex
WP# HIGH Ready 11100000E0h
WP# LOW Ready and write protected 0110000060h
CLE
CE#
WE#
R/B#
I/Ox
tRST
tWB
FF
RESET
Command
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Command Definitions
WRITE PROTECT Operation
The WRITE PROTECT feature protects the device against inadvertent PROGRAM and
ERASE operations. All PROGRAM and ERASE operations are disabled when WP# is LOW.
For WRITE PROTECT timing details, see Figures 30 through 33.
Figure 30: ERASE Enable
Figure 31: ERASE Disable
Figure 32: PROGRAM Enable
tWW
60h D0h
WE#
I/Ox
WP#
R/B#
tWW
60h D0h
WE#
I/Ox
WP#
R/B#
tWW
80h 10h
WE#
I/Ox
WP#
R/B#
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Command Definitions
Figure 33: PROGRAM Disable
tWW
80h 10h
WE#
I/Ox
WP#
R/B#
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Error Management
Error Management
Micron NAND devices are specified to have a minimum of 2,008 (NVB) valid blocks out
of every 2,048 total available blocks. This means the devices may have blocks that are
invalid when they are shipped. An invalid block is one that contains one or more bad
bits. Additional bad blocks may develop with use. However, the total number of avail-
able blocks will not fall below NVB during the endurance life of the product.
Although NAND memory devices may contain bad blocks, they can be used quite reli-
ably in systems that provide bad-block mapping, replacement, and error correction
algorithms. This type of software environment ensures data integrity.
Internal circuitry isolates each block from other blocks, so the presence of a bad block
does not affect the operation of the rest of the Flash device.
The first block (physical block address 00h) for each CE# in Micron NAND devices is
guaranteed to be free of defects (up to 1,000 PROGRAM/ERASE cycles) when shipped
from the factory. This provides a reliable location for storing boot code and critical boot
information.
Before NAND Flash devices are shipped from Micron, they are erased. The factory iden-
tifies invalid blocks before shipping by programming data other than FFh (x8) or FFFFh
(x16) into the first spare location (column address 2,048 for x8 devices, or 1,024 for x16
devices) of the first or second page of each bad block.
System software should check the first spare address on the first or second page of each
block prior to performing any erase or programming operations on the Flash device. A
bad block table can then be created, allowing system software to map around these
areas. Factory testing is performed under worst-case conditions. Because blocks marked
“bad” may be marginal, it may not be possible to recover this information if the block is
erased.
Over time, some memory locations may fail to program or erase properly. In order to
ensure that data is stored properly over the life of the Flash device, certain precautions
must be taken, such as:
Always check status after a WRITE, ERASE, or DATA MOVE operation.
Use some type of error detection and correction algorithm to recover from single-bit
errors.
Use a bad-block replacement algorithm.
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Electrical Characteristics
Electrical Characteristics
Stresses greater than those listed under “Absolute Maximum Ratings” may cause perma-
nent damage to the device. This is a stress rating only, and functional operation of the
device at these or any other conditions above those indicated in the operational sections
of this specification is not guaranteed. Exposure to absolute maximum rating conditions
for extended periods may affect reliability.
VCC Power Cycling
Micron NAND Flash devices are designed to prevent data corruption during power tran-
sitions. VCC is internally monitored. When VCC goes below 2.0V, PROGRAM and ERASE
functions are disabled. WP# provides additional hardware protection. WP# should be
kept at VIL during power cycling. When VCC reaches 2.0V, a minimum of 10µs should be
allowed for the Flash to initialize before executing any commands. (See Figure 17 on
page 21.)
Table 11: Absolute Maximum Ratings by Device
Device Symbol Min Max Unit
MT29FxGxxxAx VIN Supply voltage on any pin relative to Vss –0.6 +4.6 V
MT29FxGxxxAx VCC
Storage temperature TSTG 65 +150 °C
Short circuit output current, I/Os 5mA
Table 12: Recommended Operating Conditions
Parameter/Condition Symbol Min Typ Max Unit
Operating temperature Commercial tA0 –+70
oC
Extended tA–40 –+85
oC
VCC supply voltage Vcc 2.7 3.3 3.6 V
Supply voltage Vss 0 0 0 V
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Electrical Characteristics
Note: The PRE function is not supported on extended-temperature devices.
Notes: 1. Invalid blocks are blocks that contain one or more bad bits. The device may contain bad
blocks upon shipment. Additional bad blocks may develop over time; however, the total
number of available blocks will not drop below NVB during the endurance life of the
device. Do not erase or program blocks marked invalid by the factory.
2. Block 00h (the first block) is guaranteed to be valid and does not require error correction
up to 1,000 PROGRAM/ERASE cycles.
Notes: 1. These parameters are verified in device characterization and are not 100 percent tested.
2. Test conditions: Tc = 25°C; f = 1 MHz; VIN = 0V.
Table 13: DC and Operating Characteristics
Parameter Conditions Symbol Min Typ Max Unit
Sequential read current tCYCLE = 30ns,
CE# = VIL,
IOUT = 0mA
Icc1 15 30 mA
Program current –I
CC2 15 30 mA
Erase current –I
CC3 15 30 mA
Standby current (TTL) CE# = VIH,
PRE = WP# = 0V/VCC
ISB1– 1 mA
Standby current (CMOS)
MT29F2GxxAAB
CE# = VCC - 0.2V,
PRE = WP# = 0V/VCC
ISB2 10 50 µA
Standby current (CMOS)
MT29F4GxxBAB
MT29F8G08FAB
CE# = VCC - 0.2V,
PRE = WP# = 0V/VCC
ISB2 20 100 µA
Input leakage current VIN = 0V to VCC ILI ±10 µA
Output leakage current VOUT = 0V to VCC ILO ±10 µA
Input high voltage I/O [7–0], I/O [15–0]
CE#, CLE, ALE, WE#,
RE#, WP#, PRE, R/B#
VIH 0.8 x Vcc VCC + 0.3 V
Input low voltage (all inputs) –V
IL -0.3 0.8 V
Output high voltage IOH = -400µA VOH 2.4 – V
Output low voltage IOL = 2.1mA VOL ––0.4V
Output low current (R/B#) VOL = 0.4V IOL (R/B#) 8 10 mA
Table 14: Valid Blocks
Parameter Symbol Device Min Max Unit Notes
Number of valid blocks NVB MT29F2GxxAAB 2,008 2,048 Blocks 1, 2
MT29F4GxxBAB 4,016 4,096
MT29F8G08FAB 8,032 8,192
Table 15: Capacitance
Description Symbol Device Max Unit Notes
Input capacitance CIN MT29F2GxxAAB 10 pF 1, 2
MT29F4GxxBAB 20
MT29F8G08FAB 40
Input/output capacitance (I/O) CIO MT29F2GxxAAB 10 pF 1, 2
MT29F4GxxBAB 20
MT29F8G08FAB 40
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Electrical Characteristics
Notes: 1. Verified in device characterization; not 100 percent tested.
Notes: 1. Timing for tADL begins in the ADDRESS cycle, on the final rising edge of WE#, and ends
with the first rising edge of WE# for data input.
2. For PROGRAM PAGE CACHE MODE operations, the x16 AC characteristics apply for both
x16 and x8 devices.
Table 16: Test Conditions
Parameter Value Notes
Input pulse levels: MT29FxGxxxAB 0.0V to 3.3V
Input rise and fall times 5ns
Input and output timing levels VCC/2
Output load MT29FxGxxxAB (VCC = 3.0V ±10%) 1 TTL GATE and CL = 50pF
MT29FxGxxxAB (VCC = 3.3V ±10%) 1 TTL GATE and CL = 100pF 1
Table 17: AC Characteristics: Command, Data, and Address Input
Parameter Symbol
x16 x8
Unit NotesMin Max Min Max
ALE to data start tADL 100 – 100 – ns 1
ALE hold time tALH 10 5 ns 2
ALE setup time tALS 25 10 ns 2
CE# hold time tCH 10 5 ns 2
CLE hold time tCLH 10 5 ns 2
CLE setup time tCLS 25 10 ns 2
CE# setup time tCS 35 15 ns 2
Data hold time tDH 10 5 ns 2
Data setup time tDS 20 10 ns 2
Write cycle time tWC 45 30 ns 2
WE# pulse width HIGH tWH 15 10 ns 2
WE# pulse width tWP 25 15 ns 2
WP# setup time tWW 30 30 – ns
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Electrical Characteristics
Notes: 1. For PROGRAM PAGE CACHE MODE operations, the x16 AC Characteristics apply for both
x16 and x8 devices.
2. Transition is measured ±200mV from steady-state voltage with load. This parameter is
sampled and not 100 percent tested.
3. The PRE function is not supported on extended-temperature devices.
4. If RESET (FFh) command is loaded at ready state, the device goes busy for maximum 5µs.
5. Do not issue a new command during tWB, even if R/B# is ready.
Notes: 1. Eight total to the same page.
2. tCBSY MAX time depends on timing between internal program completion and data in.
3. tLPROG = tPROG (last page) + tPROG (last – 1 page) – cmd load time (last page) – addr load
time (last page) – data load time (last page).
Table 18: AC Characteristics: Normal Operation
Parameter Symbol
x16 x8
Unit NotesMin Max Min Max
ALE to RE# delay tAR 10 – 10 ns
CE# access time tCEA –45–23ns1
CE# HIGH to output High-Z tCHZ –20–20ns2
CLE access time tCLEA –45–28ns1
CLE to RE# delay tCLR 10 10 – ns
Cache busy in page read cache
mode (first 31h)
tDCBSYR1 –3–3µs
Cache busy in page read cache
mode (next 31h and 3Fh)
tDCBSYR2 tDCBSYR1 25 tDCBSYR1 25 µs
Ouput High-Z to RE# LOW tIR 0–0–ns1
Data output hold time tOH 15 15 – ns
Data transfer from Flash array to
data register
tR–25–25µs
READ cycle time tRC 50 30 ns 1
RE# access time tREA –30–18ns1
RE# HIGH hold time tREH 15 10 ns 1
RE# HIGH to output High-Z tRHZ –30–30ns2
RE# pulse width tRP 25 15 ns 1
Data transfer from Flash array to
data register at power-up with
PRE enabled @ 3.3V Vcc
tRPRE –25–25µs3
Ready to RE# LOW tRR 20 20 – ns
Reset time
(READ/PROGRAM/ERASE)
tRST – 5/10/500 – 5/10/500 µs 4
WE# HIGH to busy tWB 100 100 ns 4, 5
WE# HIGH to RE# LOW tWHR 60 60 – ns
Table 19: PROGRAM/ERASE Characteristics
Parameter Symbol Typ Max Unit Notes
Number of partial page programs NOP –8Cycle1
Block erase time tBERS 23ms
Busy time for cache program tCBSY 3 700 µs 2
Last page program time tLPROG ––3
Page program time tPROG 300 700 µs
t(H (H
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Timing Diagrams
Timing Diagrams
Figure 34: COMMAND LATCH Cycle
Note: x16: I/O[15:8] must be set to “0.
Figure 35: ADDRESS LATCH Cycle
Note: x16: I/O [15:8] must be set to “0.”
WE#
CE#
ALE
CLE
I/Ox COMMAND
tWP
tCH
tCS
tALH
tDH
tDS
tALS
tCLH
tCLS
Don‘t Care
WE#
CE#
ALE
CLE
I/Ox Address
tWP tWH
tCS
tDH
tDS
tALS tALH
tCLS
Don‘t Care Undefined
tWC
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Timing Diagrams
Figure 36: INPUT DATA LATCH
Notes: 1. DIN Final = 2,111 (x8) or 1,055 (x16).
Figure 37: SERIAL ACCESS Cycle After READ
W
E#
CE#
ALE
CLE
I/Ox
tWP tWP tWP
tWH
tALS
tDH
tDS tDH
tDS tDH
tDS
tCLH
tCH
DIN 1 DIN Final1
Don‘t Care
tWC
DIN 0
CE#
RE#
I/Ox
t
REH
t
RP
t
RR
t
RC
t
CEA
t
REA
t
REA
tREA
Don‘t Care
tRHZ
t
CHZ
t
RHZ
t
OH
R/B#
tOH
D
OUT
D
OUT
D
OUT
HHDK‘ 5L X X
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Timing Diagrams
Figure 38: STATUS READ Cycle
Figure 39: PAGE READ
RE#
CE#
WE#
CLE
I/Ox
tRHZ
tWP
tWHR
tCLEA
tCLR
tCH
tCLS
tCS
tCLH
tDH
tOH
tRP
tCHZ
tDS tREA
tOH
tIR
70h Status Output
Don‘t Care
tCEA
DOUT
NDOUT
N + 1 DOUT
M
WE#
CE#
ALE
CLE
RE#
R/B#
I/Ox
tWC
Busy
00h 30h
tR
tWB
tAR
tRR tRP
tCLR
tRC tRHZ
Don‘t Care
Col
Add 1
Col
Add 2
Row
Add 1
Row
Add 2
Row
Add 3
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Timing Diagrams
Figure 40: READ Operation with CE# “Don’t Care”
Figure 41: RANDOM DATA READ
tREA
tCEA
RE#
CE#
ALE
CLE
I/Ox
R/B#
WE#
Data Output
tR
Don‘t Care
Address (5 Cycles)00h 30h
WE#
CE#
ALE
CLE
RE#
R/B#
I/Ox
Busy
Col
Add 1 Col
Add 2 Row
Add 1 Row
Add 2 Row
Add 3
00h
tR
tWB
tAR
tRR
Don’t Care
tRC
DOUT
MDOUT
M + 1
Col
Add 1 Col
Add 2
05h E0h
tREA
tCLR
tCLEA
DOUT
NDOUT
N + 1
30h
tWHR
mam \_22_/ Wfi
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Timing Diagrams
Figure 42: PAGE READ CACHE MODE Timing Diagram, Part 1 of 2
tWC
WE#
CE#
ALE
CLE
RE#
R/B#
I/Ox
Column Address 0
1
DOUT
Page Address
M
Page Address
M + 1
tCEA
tDS
tCLH
tCLS
tCS tCH
tDH
Don’t Care
tRR
tWB tR
tDCBSYR1 tDCBSYR2
Column Address 0
Continued to 1
of next page
tRC
tREA
30h DOUT
0
DOUT
0
DOUT
1
Column Address
00h
Page Address
M
31h 31h
Col
Add 1
Col
Add 2
Row
Add 1
Row
Add 2
Row
Add 3
00h
/////\ //// ((
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2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Timing Diagrams
Figure 43: PAGE READ CACHE MODE Timing Diagram, Part 2 of 2
WE#
CE#
ALE
CLE
RE#
R/B#
I/Ox
1
Page Address
M + 1
Don’t Care
Page Address
M + 2
Column Address 0
Continued from 1
of previous page
Page Address
M + x
Column Address 0
t
CLH
t
CH
t
REA
t
CEA
t
DS
t
DH
t
RR
t
DCBSYR2
t
DCBSYR2
t
DCBSYR2
t
WB
Column Address 0
D
OUT
0
D
OUT
1D
OUT
31h D
OUT
0D
OUT
3Fh
D
OUT
1
D
OUT
0D
OUT
D
OUT
1
t
CLS
t
CS
t
RC
D
OUT
31h
D ” E) ‘ '1 w n ; g 7 N i
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2gb_nand_m29b__2.fm - Rev. I 1/06 EN 48 ©2004 Micron Technology, Inc. All rights reserved.
2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Timing Diagrams
Figure 44: PAGE READ CACHE MODE Timing without R/B#, Part 1 of 2
tWC
WE#
CE#
ALE
CLE
RE#
I/Ox 30h 70h Status DOUT
0
Column Address 0
1
DOUT
0
DOUT
1DOUT
Column Address
00h Page Address
M
Page Address
M + 1
Page Address
M
tCEA
tDS
tCLH
tCLS
tCS tCH
tDH
Don’t Care
31h 31h
Column Address 0
70h Status
I/O 6 = 0, Cache Busy
= 1, Cache Ready
I/O 5 = 0, Busy
= 1, Ready
Continued to 1
of next page
Col
Add 1
Col
Add 2
Row
Add 1
Row
Add 2
Row
Add 3
00h 00h 00h
tRC
tREA
70h Status
I/O 6 = 0, Cache Busy
= 1, Cache Ready
PDF: 09005aef818a56a7 / Source: 09005aef81590bdd Micron Technology, Inc., reserves the right to change products or specifications without notice.
2gb_nand_m29b__2.fm - Rev. I 1/06 EN 49 ©2004 Micron Technology, Inc. All rights reserved.
2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Timing Diagrams
Figure 45: PAGE READ CACHE MODE Timing without R/B#, Part 2 of 2
WE#
CE#
ALE
CLE
RE#
I/Ox
1
Page Address
M + 1
Don’t Care
Page Address
M + 2
Column Address 0
Continued from 1
of previous page
Page Address
M + x
Column Address 0
t
REA
t
CEA
t
DS
t
DH
Column Address 0
D
OUT
0D
OUT
1D
OUT
31h D
OUT
0D
OUT
3Fh
D
OUT
1D
OUT
D
OUT
1
D
OUT
0
t
RC
D
OUT
31h 70h Status
I/O 6 = 0, Cache Busy
= 1, Cache Ready
70h Status
I/O 6 = 0, Cache Busy
= 1, Cache Ready
70h Status
I/O 6 = 0, Cache Busy
= 1, Cache Ready
00h
00h
00h
t
CLH
t
CH
t
CLS
t
CS
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2gb_nand_m29b__2.fm - Rev. I 1/06 EN 50 ©2004 Micron Technology, Inc. All rights reserved.
2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Timing Diagrams
Figure 46: READ ID Operation
Figure 47: Program Operation with CE# “Don’t Care”
Device ID1Don't Care
E#
CE#
ALE
CLE
RE#
I/Ox
Address, 1 Cycle
90h 00h
Manufacturer ID1
Byte 2Byte 0 Byte 1 Byte 31
tAR
tREA
tWHR
CLE
CE#
WE#
ALE
I/Ox Address (5 Cycles) Data Input 10h
tWP
tCH
tCS
Don‘t Care
Data Input80h
/////// /////// {7W 2? /////// (( /////// LEL/
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2gb_nand_m29b__2.fm - Rev. I 1/06 EN 51 ©2004 Micron Technology, Inc. All rights reserved.
2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Timing Diagrams
Figure 48: PROGRAM PAGE Operation
WE#
CE#
ALE
CLE
RE#
R/B#
I/Ox
t
WC
t
ADL
SERIAL DATA
INPUT Command
x8 device: m = 2,111 byte
x16 device: m = 1,055 byte
PROGRAM
Command
READ STATUS
Command
1 up to m Byte
Serial Input
80h Col
Add 1 Col
Add 2 Row
Add 1 Row
Add 2 Row
Add 3 D
IN
ND
IN
M70h Status
10h
t
PROG
t
WB
Don‘t Care
(K \JL/ VIA WA
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2gb_nand_m29b__2.fm - Rev. I 1/06 EN 52 ©2004 Micron Technology, Inc. All rights reserved.
2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Timing Diagrams
Figure 49: PROGRAM PAGE Operation with RANDOM DATA INPUT
Figure 50: INTERNAL DATA MOVE
WE#
CE#
ALE
CLE
RE#
R/B#
I/Ox
tWC
SERIAL DATA
INPUT Command Serial Input
80h Col
Add 1 Col
Add 2 Row
Add 1 Row
Add 2 Row
Add 3 DIN
NDIN
N+1
tADL tADL
RANDOM DATA
INPUT Command
Column Address PROGRAM
Command
READ STATUS
Command
Serial Input
85h
tPROG
tWB
Don‘t Care
Col
Add 1 Col
Add 2 DIN
NDIN
N+1 70h Status
10h
WE#
CE#
ALE
CLE
RE#
R/B#
I/Ox
tWB
tR
tPROG
tWB
Busy Busy
READ STATUS
Command
tWC
INTERNAL
DATA MOVE
Don‘t Care
tADL
Col
Add 2
Row
Add 1
Row
Add 2 70h10h Status
Data
N
Row
Add 3
Col
Add 1
00h 35h
Col
Add 2
Row
Add 1
Row
Add 2
Row
Add 3
Col
Add 1
85h Data
1
*1“ ”—fl ‘ ”—fl \ n n flfiflfl%‘ ‘ : 3:32: :2“ ‘ “ (:23‘ ‘ 2 S u “3 u “
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2gb_nand_m29b__2.fm - Rev. I 1/06 EN 53 ©2004 Micron Technology, Inc. All rights reserved.
2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Timing Diagrams
Figure 51: PROGRAM PAGE CACHE MODE
Note: PROGRAM PAGE CACHE MODE operations must not cross die address boundaries.
WE#
CE#
ALE
CLE
RE#
R/B#
I/Ox 15h
tCBSY
tWB tWB tPROG
Col
Add 1
80h 10h 70h Status
Col
Add 2 Row
Add 2
Row
Add 1
Col
Add 1
Col
Add 2
Row
Add 2
Row
Add 1
Row
Add 3 DIN
M
DIN
N
DIN
M
DIN
N
Last Page - 1 Last Page
SERIAL DATA
INPUT Serial Input PROGRAM PROGRAM
tWC
Don‘t Care
80h
tADL
Row
Add 3
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2gb_nand_m29b__2.fm - Rev. I 1/06 EN 54 ©2004 Micron Technology, Inc. All rights reserved.
2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Timing Diagrams
Figure 52: PROGRAM PAGE CACHE MODE Ending on 15h
WE#
CE#
ALE
CLE
RE#
I/Ox 15h Col
Add 1
80h 15h 70h Status 70h Status70h Status Col
Add 2 Row
Add 2
Row
Add 1
Row
Add 3
Col
Add 1
Col
Add 2 Row
Add 2
Row
Add 1
Row
Add 3 DIN
M
DIN
N
DIN
M
DIN
N
Last PageLast Page -1
SERIAL DATA
INPUT Serial Input PROGRAM PROGRAM
tWC
Don‘t Care
80h
Poll status until:
I/O6 = 1, Ready
To ensure PROGRAM success, last 2 pages:
I/O5 = 1, Ready
I/O0 = 0, Last page PROGRAM successful
I/O1 = 0, Last page -1 PROGRAM successful
tADL
Mcron‘ ////////////// //////
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2gb_nand_m29b__2.fm - Rev. I 1/06 EN 55 ©2004 Micron Technology, Inc. All rights reserved.
2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Timing Diagrams
Figure 53: BLOCK ERASE Operation
Notes: 1. See Table 8 on page 27 for actual values.
Figure 54: RESET Operation
W
E#
CE#
ALE
CLE
RE#
R/B#
I/Ox
AUTO BLOCK
ERASE SETUP
Command
ERASE
Command
READ STATUS
Command
Busy
Row Address
60h Row
Add 1 Row
Add 2 Row
Add 3 70h Status
D0h
tWC
tBERS
tWB
Don‘t Care
CLE
CE#
WE#
R/B#
I/Ox
tRST
tWB
FF
RESET
Command
1% Q 0 : I “—\ mg; 0 HHHHHHHHHHHHHHHHH WV / HHHHHHHHHHHHHHHHHHHHHH‘ l flk L \7'\ l_, E -l-
®
8000 S. Federal Way, P.O. Box 6, Boise, ID 83707-0006, Tel: 208-368-3900
prodmktg@micron.com www.micron.com Customer Comment Line: 800-932-4992
Micron, the M logo, and the Micron logo are trademarks of Micron Technology, Inc.
All other trademarks are the property of their respective owners.
This data sheet contains minimum and maximum limits specified over the complete power supply and temperature range
for production devices. Although considered final, these specifications are subject to change, as further product
development and data characterization sometimes occur.
2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Package Dimensions
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2gb_nand_m29b__2.fm - Rev. I 1/06 EN 56 ©2004 Micron Technology, Inc. All rights reserved.
Package Dimensions
Figure 55: 48-Pin TSOP Type I
Notes: 1. All dimensions in millimeters; MIN/MAX, or typical, as noted.
2. For design guidelines using the 8Gb device, see Micron technical note TN-29-09, at:
www.micron.com/products/nand/massstorage/technote.
1.20 MAX
0.15 +0.03
-0.02
0.20 ±0.05
SEE DETAIL A
0.50 TYP
18.40 ±0.08
20.00 ±0.25
12.00 ±0.08
DETAIL A
0.50 ±0.1
0.80
0.10 +0.10
-0.05
0.10
0.25
GAGE
PLANE
0.25
PIN #1 INDEX
PLATED LEAD FINISH: 90% Sn, 10% Pb OR 100%Sn
PLASTIC PACKAGE MATERIAL: NOVOLAC EPOXY
PACKAGE WIDTH AND LENGTH DO NOT
INCLUDE MOLD PROTRUSION. ALLOWABLE
PROTRUSION IS 0.25 PER SIDE.
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2gb_nand_m29b__2.fm - Rev. I 1/06 EN 57 ©2004 Micron Technology, Inc. All rights reserved.
2, 4, 8Gb: x8/x16 Multiplexed NAND Flash Memory
Revision History
Revision History
Rev. I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/06
Options” on page 1 and Figure 2 on page 2: Added new 8Gb-only version of the lead-free 48-pin TSOP.
“Error Management” on page 37: Clarified addressing and bad block marking description.
•“V
CC Power Cycling” on page 38: corrected to 2.0V for PROGRAM and ERASE operation disable.
Rev. H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9/05
Updated READ STATUS 70h description.
Rev. G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9/05
Clarified READ STATUS 70h description on page 27.
Updated Figure 22 on page 28 and moved up under new description.
Rev. F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8/05
Revised endurance feature on page 1: deleted “with ECC and invalid block mapping.
•Updated
tR functional description.
Added data retention period.
Clarified AC characteristics.
Rev. E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7/05
Replaced DNU definition in Table 1 on page 9.
Rev. D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6/05
Updated address latch diagram.
Rev. C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5/05
Added WRITE PROTECT.
Updated standby current descriptions.
Rev. B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4/05
Updated package drawing.
Rev. A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4/05
Initial Release

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