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
ATMEGA328P-AU IC MCU 8BIT 32KB FLASH 32TQFP Microchip Technology	43,959 In Stock	1 : $2.66000 Tray	AVR® ATmega	Tray	Active	Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	23	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
ATMEGA328P-MU IC MCU 8BIT 32KB FLASH 32VQFN Microchip Technology	12,622 In Stock	1 : $2.66000 Tray	AVR® ATmega	Tray	Active	Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	23	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-VQFN (5x5)	32-VFQFN Exposed Pad
ATMEGA328P-AUR IC MCU 8BIT 32KB FLASH 32TQFP Microchip Technology	104,972 In Stock	1 : $2.74000 Cut Tape (CT) 2,000 : $2.30001 Tape & Reel (TR)	AVR® ATmega	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	23	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
ATMEGA328P-MUR IC MCU 8BIT 32KB FLASH 32VQFN Microchip Technology	60,425 In Stock	1 : $2.74000 Cut Tape (CT) 6,000 : $2.30001 Tape & Reel (TR)	AVR® ATmega	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	23	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-VQFN (5x5)	32-VFQFN Exposed Pad
ATMEGA328P-AN IC MCU 8BIT 32KB FLASH 32TQFP Microchip Technology	25,194 In Stock	1 : $2.80000 Tray	AVR® ATmega	Tray	Active	Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	23	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
ATMEGA328P-MMHR IC MCU 8BIT 32KB FLASH 28VQFN Microchip Technology	19,284 In Stock	1 : $2.87000 Cut Tape (CT) 6,000 : $2.38001 Tape & Reel (TR)	AVR® ATmega	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	23	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	28-VQFN (4x4)	28-VFQFN Exposed Pad
ATMEGA328P-PU IC MCU 8BIT 32KB FLASH 28DIP Microchip Technology	70,340 In Stock	1 : $2.89000 Tube	AVR® ATmega	Tube	Active	Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	23	32KB (16K x 16)	FLASH	1K x 8	2K x 8	1.8V ~ 5.5V	A/D 6x10b	Internal	-40°C ~ 85°C (TA)	Through Hole	28-PDIP	28-DIP (0.300", 7.62mm)
ATMEGA328P-ANR IC MCU 8BIT 32KB FLASH 32TQFP Microchip Technology	31,479 In Stock	1 : $2.89000 Cut Tape (CT) 2,000 : $2.39002 Tape & Reel (TR)	AVR® ATmega	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	23	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
ATMEGA328P-PN IC MCU 8BIT 32KB FLASH 28DIP Microchip Technology	7,598 In Stock	1 : $3.03000 Tube	AVR® ATmega	Tube	Active	Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	23	32KB (16K x 16)	FLASH	1K x 8	2K x 8	1.8V ~ 5.5V	A/D 6x10b	Internal	-40°C ~ 105°C (TA)	Through Hole	28-PDIP	28-DIP (0.300", 7.62mm)
ATMEGA328P-MN IC MCU 8BIT 32KB FLASH 32VQFN Microchip Technology	5,163 In Stock	1 : $2.80000 Tray	AVR® ATmega	Tray	Active	Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	23	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-VQFN (5x5)	32-VFQFN Exposed Pad
ATMEGA328P-MNR IC MCU 8BIT 32KB FLASH 32VQFN Microchip Technology	28,992 In Stock	1 : $2.89000 Cut Tape (CT) 6,000 : $2.39001 Tape & Reel (TR)	AVR® ATmega	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	23	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-VQFN (5x5)	32-VFQFN Exposed Pad
ATMEGA328P-MMH IC MCU 8BIT 32KB FLASH 28VQFN Microchip Technology	0 In Stock Check Lead Time	1 : $2.78000 Tray	AVR® ATmega	Tray	Active	Not Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	23	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	28-VQFN (4x4)	28-VFQFN Exposed Pad

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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.