ATMEGA644

Integrated Circuits (ICs) | Microcontrollers

	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	Qualification	Mounting Type	Supplier Device Package	Package / Case
	ATMEGA644A-AU IC MCU 8BIT 64KB FLASH 44TQFP Microchip Technology	1,217 In Stock	1 : $5.53000 Tray	AVR® ATmega	Tray	Active	Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	32	64KB (32K x 16)	FLASH	2K x 8	4K x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	44-TQFP (10x10)	44-TQFP
	ATMEGA644A-AUR IC MCU 8BIT 64KB FLASH 44TQFP Microchip Technology	4,967 In Stock	1 : $5.67000 Cut Tape (CT) 2,000 : $4.71002 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	32	64KB (32K x 16)	FLASH	2K x 8	4K x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	44-TQFP (10x10)	44-TQFP
	ATMEGA644A-PU IC MCU 8BIT 64KB FLASH 40DIP Microchip Technology	4,390 In Stock	1 : $5.90000 Tube	AVR® ATmega	Tube	Active	Not Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	32	64KB (32K x 16)	FLASH	2K x 8	4K x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Through Hole	40-PDIP	40-DIP (0.600", 15.24mm)
	ATMEGA644PA-AU IC MCU 8BIT 64KB FLASH 44TQFP Microchip Technology	3,082 In Stock	1 : $6.44000 Tray	AVR® ATmega	Tray	Active	Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	32	64KB (32K x 16)	FLASH	2K x 8	4K x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	44-TQFP (10x10)	44-TQFP
	ATMEGA644PA-MU IC MCU 8BIT 64KB FLASH 44VQFN Microchip Technology	817 In Stock	1 : $6.44000 Tray	AVR® ATmega	Tray	Active	Not Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	32	64KB (32K x 16)	FLASH	2K x 8	4K x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	44-VQFN (7x7)	44-VFQFN Exposed Pad
	ATMEGA644PA-MUR IC MCU 8BIT 64KB FLASH 44VQFN Microchip Technology	4,994 In Stock	1 : $6.55000 Cut Tape (CT) 4,000 : $5.44003 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	32	64KB (32K x 16)	FLASH	2K x 8	4K x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	44-VQFN (7x7)	44-VFQFN Exposed Pad
	ATMEGA644PA-AUR IC MCU 8BIT 64KB FLASH 44TQFP Microchip Technology	5,303 In Stock	1 : $6.60000 Cut Tape (CT) 2,000 : $5.48003 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	32	64KB (32K x 16)	FLASH	2K x 8	4K x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	44-TQFP (10x10)	44-TQFP
	ATMEGA644-20AU IC MCU 8BIT 64KB FLASH 44TQFP Microchip Technology	3,232 In Stock	1 : $6.86000 Tray	AVR® ATmega	Tray	Active	Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	32	64KB (32K x 16)	FLASH	2K x 8	4K x 8	2.7V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	44-TQFP (10x10)	44-TQFP
	ATMEGA644P-20AU IC MCU 8BIT 64KB FLASH 44TQFP Microchip Technology	4,360 In Stock	1 : $7.05000 Tray	AVR® ATmega	Tray	Active	Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	32	64KB (32K x 16)	FLASH	2K x 8	4K x 8	2.7V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	44-TQFP (10x10)	44-TQFP
	ATMEGA644PV-10AU IC MCU 8BIT 64KB FLASH 44TQFP Microchip Technology	514 In Stock	1 : $7.05000 Tray	AVR® ATmega	Tray	Active	Verified	AVR	8-Bit	10MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	32	64KB (32K x 16)	FLASH	2K x 8	4K x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	44-TQFP (10x10)	44-TQFP
	ATMEGA644P-20MUR IC MCU 8BIT 64KB FLASH 44VQFN Microchip Technology	9,913 In Stock	1 : $7.19000 Cut Tape (CT) 4,000 : $5.98003 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	32	64KB (32K x 16)	FLASH	2K x 8	4K x 8	2.7V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	44-VQFN (7x7)	44-VFQFN Exposed Pad
	ATMEGA644P-20AUR IC MCU 8BIT 64KB FLASH 44TQFP Microchip Technology	624 In Stock	1 : $7.19000 Cut Tape (CT) 2,000 : $5.98003 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	32	64KB (32K x 16)	FLASH	2K x 8	4K x 8	2.7V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	44-TQFP (10x10)	44-TQFP
	ATMEGA644PA-PU IC MCU 8BIT 64KB FLASH 40DIP Microchip Technology	967 In Stock	1 : $6.86000 Tube	AVR® ATmega	Tube	Active	Not Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	32	64KB (32K x 16)	FLASH	2K x 8	4K x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Through Hole	40-PDIP	40-DIP (0.600", 15.24mm)
	ATMEGA644V-10AU IC MCU 8BIT 64KB FLASH 44TQFP Microchip Technology	612 In Stock	1 : $6.86000 Tray	AVR® ATmega	Tray	Active	Verified	AVR	8-Bit	10MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	32	64KB (32K x 16)	FLASH	2K x 8	4K x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	44-TQFP (10x10)	44-TQFP
	ATMEGA644-20PU IC MCU 8BIT 64KB FLASH 40DIP Microchip Technology	110 In Stock	1 : $7.30000 Tube	AVR® ATmega	Tube	Active	Not Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	32	64KB (32K x 16)	FLASH	2K x 8	4K x 8	2.7V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Through Hole	40-PDIP	40-DIP (0.600", 15.24mm)
	ATMEGA644A-MU IC MCU 8BIT 64KB FLASH 44VQFN Microchip Technology	257 In Stock	1 : $5.53000 Tray	AVR® ATmega	Tray	Active	Not Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	32	64KB (32K x 16)	FLASH	2K x 8	4K x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	44-VQFN (7x7)	44-VFQFN Exposed Pad
	ATMEGA644PA-AN IC MCU 8BIT 64KB FLASH 44TQFP Microchip Technology	234 In Stock	1 : $6.72000 Tray	AVR® ATmega	Tray	Active	Not Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	32	64KB (32K x 16)	FLASH	2K x 8	4K x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 105°C (TA)	-	-	Surface Mount	44-TQFP (10x10)	44-TQFP
	ATMEGA644-20AUR IC MCU 8BIT 64KB FLASH 44TQFP Microchip Technology	5,091 In Stock	1 : $7.02000 Cut Tape (CT) 2,000 : $5.81004 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	32	64KB (32K x 16)	FLASH	2K x 8	4K x 8	2.7V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	44-TQFP (10x10)	44-TQFP
	ATMEGA644V-10AUR IC MCU 8BIT 64KB FLASH 44TQFP Microchip Technology	1,620 In Stock	1 : $7.02000 Cut Tape (CT) 2,000 : $5.81004 Tape & Reel (TR)	AVR® ATmega	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Verified	AVR	8-Bit	10MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	32	64KB (32K x 16)	FLASH	2K x 8	4K x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	44-TQFP (10x10)	44-TQFP
	ATMEGA644P-20MU IC MCU 8BIT 64KB FLASH 44VQFN Microchip Technology	2,840 In Stock	1 : $7.05000 Tray	AVR® ATmega	Tray	Active	Not Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	32	64KB (32K x 16)	FLASH	2K x 8	4K x 8	2.7V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	44-VQFN (7x7)	44-VFQFN Exposed Pad
	ATMEGA644PV-10AUR IC MCU 8BIT 64KB FLASH 44TQFP Microchip Technology	1,590 In Stock	1 : $7.19000 Cut Tape (CT) 2,000 : $5.98003 Tape & Reel (TR)	AVR® ATmega	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Verified	AVR	8-Bit	10MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	32	64KB (32K x 16)	FLASH	2K x 8	4K x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	44-TQFP (10x10)	44-TQFP
	ATMEGA644P-20AQR IC MCU 8BIT 64KB FLASH 44TQFP Microchip Technology	3,738 In Stock	1 : $7.34000 Cut Tape (CT) 2,000 : $6.10000 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	32	64KB (32K x 16)	FLASH	2K x 8	4K x 8	2.7V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 105°C (TA)	-	-	Surface Mount	44-TQFP (10x10)	44-TQFP
	ATMEGA644A-MUR IC MCU 8BIT 64KB FLASH 44VQFN Microchip Technology	3,670 In Stock	1 : $5.67000 Cut Tape (CT) 4,000 : $4.71002 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	32	64KB (32K x 16)	FLASH	2K x 8	4K x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	44-VQFN (7x7)	44-VFQFN Exposed Pad
	ATMEGA644PA-ANR IC MCU 8BIT 64KB FLASH 44TQFP Microchip Technology	2,149 In Stock	1 : $6.86000 Cut Tape (CT) 2,000 : $5.71002 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	32	64KB (32K x 16)	FLASH	2K x 8	4K x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 105°C (TA)	-	-	Surface Mount	44-TQFP (10x10)	44-TQFP
	ATMEGA644-20MUR IC MCU 8BIT 64KB FLASH 44VQFN Microchip Technology	3,820 In Stock	1 : $7.02000 Cut Tape (CT) 4,000 : $5.81004 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	32	64KB (32K x 16)	FLASH	2K x 8	4K x 8	2.7V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	44-VQFN (7x7)	44-VFQFN Exposed Pad

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