ATmega644PA 8-bit AVR® Microcontrollers

Microchip ATmega644PA 8-bit AVR® CMOS Microcontrollers are low-power and based on the AVR® enhanced RISC architecture. The Atmel ATmega644PA is a powerful 8-bit microcontroller, that offers excellent flexibility and a cost-effective solution to a wide range of embedded control applications.

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Qty. RoHS ECAD Model Core
Program Memory Size
Data RAM Size
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Maximum Clock Frequency
ADC Resolution
Number of I/Os
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Supply Voltage - Max
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Microchip Technology 8-bit Microcontrollers - MCU AVR 64K FLSH 8K SRAM 4KB EE-16MHZ 5V IND
Datasheet
1,533In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

AVR 64 kB 8 kB TQFP-100 16 MHz 10 bit 86 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega640 Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU 16 MHz, 85DEG
Datasheet
26,716In Stock
Min.: 1
Mult.: 1

AVR 64 kB 4 kB TQFP-32 16 MHz 10 bit 27 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega64M1 Tray
Microchip Technology 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE-20MHZ 5V IND
Datasheet
3,863In Stock
Min.: 1
Mult.: 1
: 2,000

AVR TQFP-44 20 MHz 2.7 V 5.5 V SMD/SMT 8 bit ATmega644 Reel, Cut Tape

Microchip Technology 8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-16MHz, IND
Datasheet
6,275In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

AVR 64 kB 4 kB VQFN-64 16 MHz 10 bit 53 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega64A Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU 20 MHz Ind Temp
Datasheet
431In Stock
Min.: 1
Mult.: 1

AVR 64 kB 4 kB VQFN-44 20 MHz 10 bit 32 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega644 Tray
Microchip Technology 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE-20MHZ 5V IND
Datasheet
6,306In Stock
Min.: 1
Mult.: 1
: 4,000

AVR 64 kB 4 kB VQFN-44 20 MHz 10 bit 32 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega644 Reel, Cut Tape
Microchip Technology 8-bit Microcontrollers - MCU AVR 64K FLSH 8K SRAM 4KB EE-8MHZ 1.8V
Datasheet
805In Stock
Min.: 1
Mult.: 1

AVR 64 kB 8 kB TQFP-100 8 MHz 10 bit 86 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega640 Tray
Microchip Technology 8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-10MHz, 1.8
Datasheet
1,000In Stock
Min.: 1
Mult.: 1
: 2,000

AVR 64 kB 4 kB TQFP-44 10 MHz 10 bit 32 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega644P Reel, Cut Tape
Microchip Technology 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE-20MHZ IND,5V
Datasheet
1,685In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

AVR 64 kB 4 kB TQFP-44 20 MHz 10 bit 32 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega644P Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU 64kB Flash 2kB EEPROM 54 I/O Pins
Datasheet
267In Stock
Min.: 1
Mult.: 1

AVR 64 kB 4 kB TQFP-64 16 MHz 10 bit 54 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega645 Tray
Microchip Technology 8-bit Microcontrollers - MCU 16MHz 105C
Datasheet
1,667In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

AVR 64 kB 4 kB TQFP-64 16 MHz 10 bit 53 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 105 C ATmega64A Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM LCD16MHz,5
Datasheet
2,000In Stock
Min.: 1
Mult.: 1
: 1,000

AVR 64 kB 4 kB TQFP-64 16 MHz 10 bit 69 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega649 Reel, Cut Tape
Microchip Technology 8-bit Microcontrollers - MCU AVR 64 KB FL 2 KB EE 4KB RAM 16 MHZ GRN
Datasheet
56In Stock
Min.: 1
Mult.: 1

AVR 64 kB 4 kB VQFN-44 20 MHz 10 bit 32 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega644 Tray
Microchip Technology 8-bit Microcontrollers - MCU 16MHz MLF 105C
Datasheet
98In Stock
Min.: 1
Mult.: 1

AVR 64 kB 4 kB QFN-64 16 MHz 10 bit 53 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 105 C ATmega64A Tray
Microchip Technology 8-bit Microcontrollers - MCU AVR 64K FLASH 2K EE 4K SRAM
Datasheet
200In Stock
Min.: 1
Mult.: 1

AVR 64 kB 4 kB VQFN-44 10 MHz 10 bit 32 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega644P Tray

Microchip Technology 8-bit Microcontrollers - MCU AVR 64K FLASH 2K EE 4K SRAM ADC LCD
Datasheet
258In Stock
Min.: 1
Mult.: 1

AVR 64 kB 4 kB MLF-64 16 MHz 10 bit 69 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega649 Tray

Microchip Technology 8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-16MHz, IND
Datasheet
1,300In Stock
Min.: 1
Mult.: 1

AVR 64 kB 4 kB QFN-64 16 MHz 10 bit 54 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega645P Tray
Microchip Technology 8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-20MHz, IND
Datasheet
1,825In Stock
Min.: 1
Mult.: 1
: 1,000

AVR TQFP-64 16 MHz 1.8 V 5.5 V SMD/SMT 8 bit ATmega649A Reel, Cut Tape
Microchip Technology 8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-8MHz, EXT
Datasheet
747In Stock
Min.: 1
Mult.: 1
: 1,000

AVR 64 kB 4 kB TQFP-64 8 MHz 10 bit 53 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega64 Reel, Cut Tape
Microchip Technology 8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-20MHz, IND
Datasheet
1,000In Stock
Min.: 1
Mult.: 1
: 1,000

AVR TQFP-64 16 MHz 1.8 V 5.5 V SMD/SMT 8 bit ATmega645A Reel, Cut Tape
Microchip Technology 8-bit Microcontrollers - MCU AVR 64K FLASH 2K EE 4K SRAM ADC 1.8V
Datasheet
176In Stock
Min.: 1
Mult.: 1

AVR 64 kB 4 kB TQFP-64 8 MHz 10 bit 54 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega645 Tray
Microchip Technology 8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-16MHz, 5V
Datasheet
748In Stock
Min.: 1
Mult.: 1
: 1,000

AVR 64 kB 4 kB TQFP-64 16 MHz 10 bit 54 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega645 Reel, Cut Tape
Microchip Technology 8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-16MHZ 5V
Datasheet
1,938In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

AVR 64 kB 4 kB TQFP-64 16 MHz 10 bit 53 I/O 4.2 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega64 Reel, Cut Tape, MouseReel

Microchip Technology 8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-8MHz, IND
Datasheet
2,732In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

AVR 64 kB 4 kB MLF-64 8 MHz 10 bit 53 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega64 Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU 64kB Flash 4kB EEPROM 86 I/O Pins
Datasheet
479In Stock
Min.: 1
Mult.: 1

AVR 64 kB 8 kB TQFP-100 16 MHz 10 bit 86 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega640 Tray