Microcontrollers

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	DigiKey Programmable	Core Processor	Core Size	Speed	Connectivity	Peripherals	Number of I/O	Program Memory Size	Program Memory Type	EEPROM Size	RAM Size	Voltage - Supply (Vcc/Vdd)	Data Converters	Oscillator Type	Operating Temperature	Mounting Type	Supplier Device Package	Package / Case
ATMEGA328PB-MU IC MCU 8BIT 32KB FLASH 32VFQFN Microchip Technology	6,846 In Stock	1 : $2.39000 Tray	AVR® ATmega, Functional Safety (FuSa)	Tray	Active	Not Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	27	32KB (16K x 16)	FLASH	1K x 8	2K x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	Surface Mount	32-VFQFN (5x5)	32-VFQFN Exposed Pad
ATMEGA328PB-MN IC MCU 8BIT 32KB FLASH 32VFQFN Microchip Technology	846 In Stock	1 : $2.46000 Tray	AVR® ATmega, Functional Safety (FuSa)	Tray	Active	Not Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	27	32KB (16K x 16)	FLASH	1K x 8	2K x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 105°C (TA)	Surface Mount	32-VFQFN (5x5)	32-VFQFN Exposed Pad
ATMEGA328PB-MUR IC MCU 8BIT 32KB FLASH 32VFQFN Microchip Technology	40,412 In Stock	1 : $2.54000 Cut Tape (CT) 6,000 : $2.10990 Tape & Reel (TR)	AVR® ATmega, Functional Safety (FuSa)	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	27	32KB (16K x 16)	FLASH	1K x 8	2K x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	Surface Mount	32-VFQFN (5x5)	32-VFQFN Exposed Pad
ATMEGA328PB-AU IC MCU 8BIT 32KB FLASH 32TQFP Microchip Technology	20,047 In Stock	1 : $2.57000 Tray	AVR® ATmega, Functional Safety (FuSa)	Tray	Active	Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	27	32KB (16K x 16)	FLASH	1K x 8	2K x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	Surface Mount	32-TQFP (7x7)	32-TQFP
ATMEGA328PB-MNR IC MCU 8BIT 32KB FLASH 32VFQFN Microchip Technology	25,121 In Stock	1 : $2.60000 Cut Tape (CT) 6,000 : $2.15714 Tape & Reel (TR)	AVR® ATmega, Functional Safety (FuSa)	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	27	32KB (16K x 16)	FLASH	1K x 8	2K x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 105°C (TA)	Surface Mount	32-VFQFN (5x5)	32-VFQFN Exposed Pad
ATMEGA328PB-AN IC MCU 8BIT 32KB FLASH 32TQFP Microchip Technology	144 In Stock	1 : $2.60000 Tray	AVR® ATmega, Functional Safety (FuSa)	Tray	Active	Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	27	32KB (16K x 16)	FLASH	1K x 8	2K x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 105°C (TA)	Surface Mount	32-TQFP (7x7)	32-TQFP
ATMEGA328PB-AUR IC MCU 8BIT 32KB FLASH 32TQFP Microchip Technology	13,038 In Stock	1 : $2.68000 Cut Tape (CT) 2,000 : $2.22011 Tape & Reel (TR)	AVR® ATmega, Functional Safety (FuSa)	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	27	32KB (16K x 16)	FLASH	1K x 8	2K x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	Surface Mount	32-TQFP (7x7)	32-TQFP
ATMEGA328PB-ANR IC MCU 8BIT 32KB FLASH 32TQFP Microchip Technology	4,600 In Stock	1 : $2.77000 Cut Tape (CT) 2,000 : $2.29883 Tape & Reel (TR)	AVR® ATmega, Functional Safety (FuSa)	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	27	32KB (16K x 16)	FLASH	1K x 8	2K x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 105°C (TA)	Surface Mount	32-TQFP (7x7)	32-TQFP

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Microcontroller products are relatively complex, user-programmable digital logic devices. Closely related to devices considered microprocessors, the distinction between the two reduces largely to the manufacturer's choice of noun, though by tradition microcontrollers integrate working memory, are more likely to incorporate mixed-signal peripherals and tend to be used with simpler software paradigms oriented toward repetitive execution of a predefined series of tasks.