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	Grade	Mounting Type	Supplier Device Package	Package / Case

ATMEGA328P-AU IC MCU 8BIT 32KB FLASH 32TQFP Microchip Technology	56,506 In Stock	1 : ¥22.61000 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	15,782 In Stock	1 : ¥21.84000 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	118,503 In Stock	1 : ¥23.29000 Cut Tape (CT) 2,000 : ¥19.55289 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	63,935 In Stock	1 : ¥22.49000 Cut Tape (CT) 6,000 : ¥18.88262 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	27,626 In Stock	1 : ¥23.80000 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	20,422 In Stock	1 : ¥23.56000 Cut Tape (CT) 6,000 : ¥19.53939 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	84,566 In Stock	1 : ¥24.57000 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-PN IC MCU 8BIT 32KB FLASH 28DIP Microchip Technology	9,523 In Stock	1 : ¥25.76000 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-MMH IC MCU 8BIT 32KB FLASH 28VQFN Microchip Technology	420 In Stock	1 : ¥22.82000 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
ATMEGA328P-MN IC MCU 8BIT 32KB FLASH 32VQFN Microchip Technology	5,285 In Stock	1 : ¥22.99000 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-ANR IC MCU 8BIT 32KB FLASH 32TQFP Microchip Technology	36,294 In Stock	1 : ¥23.73000 Cut Tape (CT) 2,000 : ¥19.62156 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-MNR IC MCU 8BIT 32KB FLASH 32VQFN Microchip Technology	29,282 In Stock	1 : ¥24.57000 Cut Tape (CT) 6,000 : ¥20.31802 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
X000048 IC MCU 8BIT 32KB FLASH 28DIP Arduino	0 In Stock	10 : ¥51.72200 Bulk	-	Bulk	Discontinued at Digi-Key	Not Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	23	32KB (16K x 16)	FLASH (Arduino Bootloader)	1K x 8	2K x 8	1.8V ~ 5.5V	A/D 6x10b	Internal	-40°C ~ 85°C (TA)	-	Through Hole	28-DIP	28-DIP (0.300", 7.62mm)

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Microcontrollers

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.