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CP2501 Short Datasheet by Silicon Labs

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Interface Copyright © 2010 by Silicon Laboratories 7.21.2010
Connect to
VBUS or
External Supply
VBUS
D+
D-
GND
USB
Connector
Touch Screen
Module
UART / SPI /
SMBus
(GPIO if needed)
CP2501
Oscillator
USB Interface
Peripheral
Function
Controller
Full-Speed
12 Mbps
Transceiver
Product Customization
Voltage
Regulator
& Monitor
REGIN
VDD
GND
VBUS
D+
D-
Communications
Interfaces
8051 Controller
USB HID
Touch Screen
Interface
User
Programmable
Code
UART Controller
SPI Master
SMBus Master
GPIO Controller
CP2501
Single-Chip USB HID Touch-Screen Bridge
Programmable Touch-Screen Interface
-Adds Windows-compatible USB HID touchscreen
interface to touch-screen modules
-Supports multiple touch points and pen inputs
-Supports basic mouse functions
-Includes a programmable 8051-based controller that is
pre-programmed with USB interface
-Supports most common touch-screen module
interfaces: UART, SPI and I2C.
UART Interface
-Data Bits: 5, 6, 7, and 8
-Stop Bits: 1, 1.5, and 2
-Parity: Odd, Even, Mark, Space, and None
-Baud Rates: 9600 bps to 500 kbps
SPI Master Interface
-4-wire SPI Master with Chip Select
-Configurable Clock Polarity and Phase
-Clock speeds up to 4 MHz
SMBus / I2C Master Interface
-Operates at configurable clock rates up to 400 kHz
-Supports configurable slave address
GPIO Capability
-CP2501 supports 16 GPIO pins
-Configurable as inputs, open-drain outputs or push-
pull outputs
High-Speed 8051 µC Core
-48 MHz or 24 MHz system clock
-Pipelined instruction architecture; executes 70% of
instructions in 1 or 2 system clocks
User Memory Space
-53 kB Flash
-3.5 kB RAM
USB Peripheral Function Controller
-HID Touch Screen class device
-USB Specification 2.0 compliant (full-speed)
-Built-in oscillator
-Configurable USB parameters such as VID, PID, and
strings
-Supports remote wakeup
Programming Options
-Obtain pre-programmed parts from the factory
-Program memory in-system
-Program over USB using bootloader
Supply Voltage 3.0 to 3.6 V
-Built-in voltage supply monitor
-Built-in 3 V regulator
Ordering Information
-CP2501-B01-GM (QFN-32, 5x5 mm)
Temperature Range: –40 to +85 °C

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