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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 20 MHz Ind Temp

ATMEGA644A-AUR
Microchip Technology
1: Rp104.022
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

Rp104.022

Reel

Rp104.022

MouseReel Available

Min.: 1
Mult.: 1

: 2.000

8-bit Microcontrollers - MCU 20 MHz Ind Temp

ATMEGA644A-PU
Microchip Technology
1: Rp108.241
493In Stock

Mfr. Part No.
ATMEGA644A-PU

Mouser Part No
556-ATMEGA644A-PU

Microchip Technology

8-bit Microcontrollers - MCU 20 MHz Ind Temp

Datasheet

493In Stock

Rp108.241

Min.: 1
Mult.: 1

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

ATMEGA644P-20MU
Microchip Technology
1: Rp129.339
696In 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

696In Stock

Rp129.339

Min.: 1
Mult.: 1

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

ATMEGA644P-20PU
Microchip Technology
1: Rp137.412
355In 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

355In Stock

Rp137.412

Min.: 1
Mult.: 1

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

ATMEGA644PA-AU
Microchip Technology
1: Rp118.148
686In 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

686In Stock

Rp118.148

Min.: 1
Mult.: 1

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

ATMEGA644PA-MU
Microchip Technology
1: Rp118.148
871In 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

871In Stock

Rp118.148

Min.: 1
Mult.: 1

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

ATMEGA644PA-PU
Microchip Technology
1: Rp125.854
667In 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

667In Stock

Rp125.854

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-10MHz, 1.8

ATMEGA644PV-10AUR
Microchip Technology
1: Rp131.908
1.000In Stock

Mfr. Part No.
ATMEGA644PV-10AUR

Mouser Part No
556-ATMEGA644PV10AUR

Microchip Technology

8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-10MHz, 1.8

Datasheet

1.000In Stock

Cut Tape

Rp131.908

Rp128.422

Rp109.709

Reel

Rp109.709

Min.: 1
Mult.: 1

: 2.000

8-bit Microcontrollers - MCU 16 MHz, 85DEG

ATMEGA64M1-MU
Microchip Technology
1: Rp126.404
1.253In Stock

Mfr. Part No.
ATMEGA64M1-MU

Mouser Part No
556-ATMEGA64M1-MU

Microchip Technology

8-bit Microcontrollers - MCU 16 MHz, 85DEG

Datasheet

1.253In Stock

Rp126.404

Rp115.947

Rp105.306

Min.: 1
Mult.: 1

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

ATMEGA644-20AU
Microchip Technology
1: Rp125.854
1.127In 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

1.127In Stock

Rp125.854

Rp115.580

Rp104.756

Min.: 1
Mult.: 1

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

ATMEGA644PA-AN
Microchip Technology
1: Rp123.285
255In Stock
480Expected 26/10/2026

Mfr. Part No.
ATMEGA644PA-AN

Mouser Part No
556-ATMEGA644PA-AN

Microchip Technology

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

Datasheet

255In Stock

480Expected 26/10/2026

Rp123.285

Rp112.828

Rp102.187

Min.: 1
Mult.: 1

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

ATMEGA644V-10AU
Microchip Technology
1: Rp125.854
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

Rp125.854

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU 16MHz 105C

ATMEGA64A-AN
Microchip Technology
1: Rp108.058
363In Stock

Mfr. Part No.
ATMEGA64A-AN

Mouser Part No
556-ATMEGA64A-AN

Microchip Technology

8-bit Microcontrollers - MCU 16MHz 105C

Datasheet

363In Stock

Rp108.058

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU 64K Flsh 2K EEPROM 4K SRAM 16MHz

ATMEGA64A-AU
Microchip Technology
1: Rp105.673
1.193In Stock
2.160Expected 19/10/2026

Mfr. Part No.
ATMEGA64A-AU

Mouser Part No
556-ATMEGA64A-AU

Microchip Technology

8-bit Microcontrollers - MCU 64K Flsh 2K EEPROM 4K SRAM 16MHz

Datasheet

1.193In Stock

2.160Expected 19/10/2026

Rp105.673

Min.: 1
Mult.: 1

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

ATMEGA64A-AUR
Microchip Technology
1: Rp108.608
733In Stock
2.000Expected 11/01/2027

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

733In Stock

2.000Expected 11/01/2027

Cut Tape

Rp108.608

Reel

Rp108.608

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: Rp188.964
227In 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

227In Stock

Rp188.964

Min.: 1
Mult.: 1

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

ATMEGA64L-8AUR
Microchip Technology
1: Rp192.450
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

Rp192.450

Reel

Rp192.450

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

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

ATMEGA64-16MU
Microchip Technology
1: Rp188.964
25In Stock

Mfr. Part No.
ATMEGA64-16MU

Mouser Part No
556-ATMEGA64-16MU

Microchip Technology

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

Datasheet

25In Stock

Rp188.964

Min.: 1
Mult.: 1

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

ATMEGA644-20PU
Microchip Technology
1: Rp133.926
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

Rp133.926

Min.: 1
Mult.: 1

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

ATMEGA644P-20AQ
Microchip Technology
1: Rp131.908
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

Rp131.908

Min.: 1
Mult.: 1

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

ATMEGA644P-20AUR
Microchip Technology
1: Rp131.908
173In Stock
2.000Expected 02/04/2027

Mfr. Part No.
ATMEGA644P-20AUR

Mouser Part No
556-ATMEGA644P-20AUR

Microchip Technology

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

Datasheet

173In Stock

2.000Expected 02/04/2027

Cut Tape

Rp131.908

Rp118.332

Rp117.598

Rp116.681

View

Reel

Rp109.709

MouseReel Available

Min.: 1
Mult.: 1

: 2.000

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

ATMEGA644PV-10AU
Microchip Technology
1: Rp129.339
222In Stock
160Expected 17/05/2027

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

222In Stock

160Expected 17/05/2027

Rp129.339

Min.: 1
Mult.: 1

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

ATMEGA645A-AU
Microchip Technology
1: Rp117.047
49In Stock
540Expected 26/10/2026

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

540Expected 26/10/2026

Rp117.047

Min.: 1
Mult.: 1

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

ATMEGA649-16AU
Microchip Technology
1: Rp175.571
26In Stock

Mfr. Part No.
ATMEGA649-16AU

Mouser Part No
556-ATMEGA649-16AU

Microchip Technology

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

Datasheet

26In Stock

Rp175.571

Min.: 1
Mult.: 1

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

ATMEGA649A-AU
Microchip Technology
1: Rp128.972
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

Rp128.972

Min.: 1
Mult.: 1