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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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Part #

8-bit Microcontrollers - MCU 64kB Flash 2kB EEPROM 32 I/O Pins

ATMEGA644-20AU
Microchip Technology
1: 42,82 kr.
1.944In Stock

Mfr. Part No.
ATMEGA644-20AU

Mouser Part No
556-ATMEGA644-20AU

Microchip Technology

8-bit Microcontrollers - MCU 64kB Flash 2kB EEPROM 32 I/O Pins

Datasheet

1.944In Stock

42,82 kr.

42,15 kr.

39,39 kr.

36,48 kr.

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU 20 MHz Ind Temp

ATMEGA644A-AU
Microchip Technology
1: 35,51 kr.
316In Stock
1.120Expected 10/06/2026

Mfr. Part No.
ATMEGA644A-AU

Mouser Part No
556-ATMEGA644A-AU

Microchip Technology

8-bit Microcontrollers - MCU 20 MHz Ind Temp

Datasheet

316In Stock

1.120Expected 10/06/2026

35,51 kr.

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V

ATMEGA644P-20AU
Microchip Technology
1: 45,21 kr.
345In Stock
480Expected 10/08/2026

Mfr. Part No.
ATMEGA644P-20AU

Mouser Part No
556-ATMEGA644P-20AU

Microchip Technology

8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V

Datasheet

345In Stock

480Expected 10/08/2026

45,21 kr.

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V

ATMEGA644P-20MU
Microchip Technology
1: 45,21 kr.
864In Stock

Mfr. Part No.
ATMEGA644P-20MU

Mouser Part No
556-ATMEGA644P-20MU

Microchip Technology

8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V

Datasheet

864In Stock

45,21 kr.

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V

ATMEGA644P-20PU
Microchip Technology
1: 48,04 kr.
378In Stock

Mfr. Part No.
ATMEGA644P-20PU

Mouser Part No
556-ATMEGA644P-20PU

Microchip Technology

8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V

Datasheet

378In Stock

48,04 kr.

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU 16 MHz, 105C, Green, TQFP

ATMEGA644PA-AN
Microchip Technology
1: 43,12 kr.
262In Stock
480Expected 24/08/2026

Mfr. Part No.
ATMEGA644PA-AN

Mouser Part No
556-ATMEGA644PA-AN

Microchip Technology

8-bit Microcontrollers - MCU 16 MHz, 105C, Green, TQFP

Datasheet

262In Stock

480Expected 24/08/2026

43,12 kr.

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU 64K Flash 2K EEPROM 4K SRAM 32 IO Pins

ATMEGA644PA-AU
Microchip Technology
1: 41,33 kr.
779In Stock

Mfr. Part No.
ATMEGA644PA-AU

Mouser Part No
556-ATMEGA644PA-AU

Microchip Technology

8-bit Microcontrollers - MCU 64K Flash 2K EEPROM 4K SRAM 32 IO Pins

Datasheet

779In Stock

41,33 kr.

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB RAM-20MHz IND

ATMEGA644PA-AUR
Microchip Technology
1: 42,37 kr.
2.132In Stock

Mfr. Part No.
ATMEGA644PA-AUR

Mouser Part No
556-ATMEGA644PA-AUR

Microchip Technology

8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB RAM-20MHz IND

Datasheet

2.132In Stock

Cut Tape

42,37 kr.

Reel

42,37 kr.

MouseReel Available

Min.: 1
Mult.: 1

: 2.000

8-bit Microcontrollers - MCU 64K Flash 2K EEPROM 4K SRAM 32 IO Pins

ATMEGA644PA-MU
Microchip Technology
1: 41,33 kr.
470In Stock

Mfr. Part No.
ATMEGA644PA-MU

Mouser Part No
556-ATMEGA644PA-MU

Microchip Technology

8-bit Microcontrollers - MCU 64K Flash 2K EEPROM 4K SRAM 32 IO Pins

Datasheet

470In Stock

41,33 kr.

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU AVR 64K FLASH 2K EE 4K SRAM ADC-10MHZ

ATMEGA644PV-10AU
Microchip Technology
1: 45,21 kr.
443In Stock

Mfr. Part No.
ATMEGA644PV-10AU

Mouser Part No
556-ATMEGA644PV10AU

Microchip Technology

8-bit Microcontrollers - MCU AVR 64K FLASH 2K EE 4K SRAM ADC-10MHZ

Datasheet

443In Stock

45,21 kr.

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU 64kB Flash 2kB EEPROM 32 I/O Pins

ATMEGA644V-10AU
Microchip Technology
1: 44,01 kr.
582In Stock

Mfr. Part No.
ATMEGA644V-10AU

Mouser Part No
556-ATMEGA644V10AU

Microchip Technology

8-bit Microcontrollers - MCU 64kB Flash 2kB EEPROM 32 I/O Pins

Datasheet

582In Stock

44,01 kr.

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU 16MHz 105C

ATMEGA64A-AN
Microchip Technology
1: 37,82 kr.
410In Stock

Mfr. Part No.
ATMEGA64A-AN

Mouser Part No
556-ATMEGA64A-AN

Microchip Technology

8-bit Microcontrollers - MCU 16MHz 105C

Datasheet

410In Stock

37,82 kr.

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-16MHz IND

ATMEGA64A-AUR
Microchip Technology
1: 37,97 kr.
1.156In Stock

Mfr. Part No.
ATMEGA64A-AUR

Mouser Part No
556-ATMEGA64A-AUR

Microchip Technology

8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-16MHz IND

Datasheet

1.156In Stock

Cut Tape

37,97 kr.

Reel

37,97 kr.

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

8-bit Microcontrollers - MCU 64kB Flash 2kB EEPROM 54 I/O Pins

ATMEGA64L-8AU
Microchip Technology
1: 66,10 kr.
378In Stock

Mfr. Part No.
ATMEGA64L-8AU

Mouser Part No
556-ATMEGA64L-8AU

Microchip Technology

8-bit Microcontrollers - MCU 64kB Flash 2kB EEPROM 54 I/O Pins

Datasheet

378In Stock

66,10 kr.

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-8MHz, IND

ATMEGA64L-8AUR
Microchip Technology
1: 67,29 kr.
682In Stock

Mfr. Part No.
ATMEGA64L-8AUR

Mouser Part No
556-ATMEGA64L-8AUR

Microchip Technology

8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-8MHz, IND

Datasheet

682In Stock

Cut Tape

67,29 kr.

Reel

67,29 kr.

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

8-bit Microcontrollers - MCU 16 MHz, 85DEG

ATMEGA64M1-MU
Microchip Technology
1: 44,24 kr.
105In Stock
1.248Expected 23/07/2026

Mfr. Part No.
ATMEGA64M1-MU

Mouser Part No
556-ATMEGA64M1-MU

Microchip Technology

8-bit Microcontrollers - MCU 16 MHz, 85DEG

Datasheet

105In Stock

1.248Expected 23/07/2026

44,24 kr.

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU 20 MHz Ind Temp

ATMEGA644A-AUR
Microchip Technology
1: 36,40 kr.
558In Stock

Mfr. Part No.
ATMEGA644A-AUR

Mouser Part No
556-ATMEGA644A-AUR

Microchip Technology

8-bit Microcontrollers - MCU 20 MHz Ind Temp

Datasheet

558In Stock

Cut Tape

36,40 kr.

Reel

36,40 kr.

MouseReel Available

Min.: 1
Mult.: 1

: 2.000

8-bit Microcontrollers - MCU 64K Flash 2K EEPROM 4K SRAM 32 IO Pins

ATMEGA644PA-PU
Microchip Technology
1: 44,01 kr.
689In Stock

Mfr. Part No.
ATMEGA644PA-PU

Mouser Part No
556-ATMEGA644PA-PU

Microchip Technology

8-bit Microcontrollers - MCU 64K Flash 2K EEPROM 4K SRAM 32 IO Pins

Datasheet

689In Stock

44,01 kr.

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU 64kB Flash 4kB EEPROM 86 I/O Pins

ATMEGA640-16AU
Microchip Technology
1: 65,95 kr.
17In Stock
630Expected 10/06/2026

Mfr. Part No.
ATMEGA640-16AU

Mouser Part No
556-ATMEGA640-16AU

Microchip Technology

8-bit Microcontrollers - MCU 64kB Flash 4kB EEPROM 86 I/O Pins

Datasheet

17In Stock

630Expected 10/06/2026

65,95 kr.

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU 64kB Flash 2kB EEPROM 32 I/O Pins

ATMEGA644-20PU
Microchip Technology
1: 46,85 kr.
119In Stock

Mfr. Part No.
ATMEGA644-20PU

Mouser Part No
556-ATMEGA644-20PU

Microchip Technology

8-bit Microcontrollers - MCU 64kB Flash 2kB EEPROM 32 I/O Pins

Datasheet

119In Stock

46,85 kr.

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU 20 MHz Ind Temp

ATMEGA644A-MU
Microchip Technology
1: 35,51 kr.
71In Stock
360Expected 18/08/2026

Mfr. Part No.
ATMEGA644A-MU

Mouser Part No
556-ATMEGA644A-MU

Microchip Technology

8-bit Microcontrollers - MCU 20 MHz Ind Temp

Datasheet

71In Stock

360Expected 18/08/2026

35,51 kr.

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU 20 MHz Ind Temp

ATMEGA644A-PU
Microchip Technology
1: 37,82 kr.
252In Stock
300Expected 20/07/2026

Mfr. Part No.
ATMEGA644A-PU

Mouser Part No
556-ATMEGA644A-PU

Microchip Technology

8-bit Microcontrollers - MCU 20 MHz Ind Temp

Datasheet

252In Stock

300Expected 20/07/2026

37,82 kr.

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V

ATMEGA644P-20AQ
Microchip Technology
1: 46,10 kr.
47In Stock

Mfr. Part No.
ATMEGA644P-20AQ

Mouser Part No
556-ATMEGA644P-20AQ

Microchip Technology

8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V

Datasheet

47In Stock

46,10 kr.

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-20MHz, IND

ATMEGA645A-AU
Microchip Technology
1: 40,96 kr.
49In Stock
540On Order

Mfr. Part No.
ATMEGA645A-AU

Mouser Part No
556-ATMEGA645A-AU

Microchip Technology

8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-20MHz, IND

Datasheet

49In Stock

540On Order

40,96 kr.

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-20MHz, IND

ATMEGA649A-AU
Microchip Technology
1: 45,13 kr.
23In Stock

Mfr. Part No.
ATMEGA649A-AU

Mouser Part No
556-ATMEGA649A-AU

Microchip Technology

8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-20MHz, IND

Datasheet

23In Stock

45,13 kr.

Min.: 1
Mult.: 1