Semiconductors – Mouser Canada

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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 16 MHz, 85DEG

ATMEGA64M1-AU
Microchip Technology
1: $9.92
26,199In Stock

Mfr. Part #
ATMEGA64M1-AU

Mouser Part #
556-ATMEGA64M1-AU

Microchip Technology

8-bit Microcontrollers - MCU 16 MHz, 85DEG

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Datasheet

26,199In Stock

$9.92

$8.99

$8.27

$8.21

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU AVR 64 KB FL 2 KB EE 4KB RAM 16 MHZ GRN

ATMEGA644PA-MN
Microchip Technology
1: $10.54
366In Stock

Mfr. Part #
ATMEGA644PA-MN

Mouser Part #
556-ATMEGA644PA-MN

Microchip Technology

8-bit Microcontrollers - MCU AVR 64 KB FL 2 KB EE 4KB RAM 16 MHZ GRN

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Datasheet

366In Stock

$10.54

$9.76

$9.12

$9.10

Min.: 1
Mult.: 1

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

ATMEGA644-20MUR
Microchip Technology
1: $10.11
6,306In Stock

Mfr. Part #
ATMEGA644-20MUR

Mouser Part #
556-ATMEGA644-20MUR

Microchip Technology

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

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Datasheet

6,306In Stock

Cut Tape

$10.11

$9.82

$9.30

$9.29

View

Reel

$8.35

Min.: 1
Mult.: 1

: 4,000

8-bit Microcontrollers - MCU AVR 64K FLSH 8K SRAM 4KB EE-8MHZ 1.8V

ATMEGA640V-8AU
Microchip Technology
1: $13.55
805In Stock

Mfr. Part #
ATMEGA640V-8AU

Mouser Part #
556-ATMEGA640V8AU

Microchip Technology

8-bit Microcontrollers - MCU AVR 64K FLSH 8K SRAM 4KB EE-8MHZ 1.8V

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Datasheet

805In Stock

$13.55

$13.02

$12.28

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU 20 MHz Ind Temp

ATMEGA644A-MU
Microchip Technology
1: $7.96
431In Stock

Mfr. Part #
ATMEGA644A-MU

Mouser Part #
556-ATMEGA644A-MU

Microchip Technology

8-bit Microcontrollers - MCU 20 MHz Ind Temp

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Datasheet

431In Stock

$7.96

$7.29

$6.60

Quote

Min.: 1
Mult.: 1

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

ATMEGA644-20AUR
Microchip Technology
1: $10.11
3,863In Stock

Mfr. Part #
ATMEGA644-20AUR

Mouser Part #
556-ATMEGA644-20AUR

Microchip Technology

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

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Datasheet

3,863In Stock

Cut Tape

$10.11

$9.82

$9.30

$9.29

$8.34

Reel

$8.34

Min.: 1
Mult.: 1

: 2,000

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

ATMEGA645A-AUR
Microchip Technology
1: $9.48
960In Stock

Mfr. Part #
ATMEGA645A-AUR

Mouser Part #
556-ATMEGA645A-AUR

Microchip Technology

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

Learn More

Datasheet

960In Stock

Cut Tape

$9.48

$9.23

$8.73

$8.38

Reel

$7.85

Quote

Min.: 1
Mult.: 1

: 1,000

8-bit Microcontrollers - MCU 16MHz 105C

ATMEGA64A-ANR
Microchip Technology
1: $8.74
1,662In Stock

Mfr. Part #
ATMEGA64A-ANR

Mouser Part #
556-ATMEGA64A-ANR

Microchip Technology

8-bit Microcontrollers - MCU 16MHz 105C

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Datasheet

1,662In Stock

Cut Tape

$8.74

$8.48

$7.70

Reel

$7.24

Quote

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

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

ATMEGA645-16AU
Microchip Technology
1: $11.32
267In Stock

Mfr. Part #
ATMEGA645-16AU

Mouser Part #
556-ATMEGA645-16AU

Microchip Technology

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

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Datasheet

267In Stock

$11.32

$10.35

$9.39

$9.37

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM LCD16MHz,5

ATMEGA649-16AUR
Microchip Technology
1: $14.05
2,000In Stock

Mfr. Part #
ATMEGA649-16AUR

Mouser Part #
556-ATMEGA649-16AUR

Microchip Technology

8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM LCD16MHz,5

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Datasheet

2,000In Stock

Cut Tape

$14.05

$12.57

$12.54

$12.30

Reel

$12.28

Min.: 1
Mult.: 1

: 1,000

8-bit Microcontrollers - MCU 16MHz MLF 105C

ATMEGA64A-MN
Microchip Technology
1: $8.48
98In Stock

Mfr. Part #
ATMEGA64A-MN

Mouser Part #
556-ATMEGA64A-MN

Microchip Technology

8-bit Microcontrollers - MCU 16MHz MLF 105C

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Datasheet

98In Stock

$8.48

$8.08

$8.01

$7.98

View

Min.: 1
Mult.: 1

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

ATMEGA644PV-10MU
Microchip Technology
1: $10.15
200In Stock

Mfr. Part #
ATMEGA644PV-10MU

Mouser Part #
556-ATMEGA644PV-10MU

Microchip Technology

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

Learn More

Datasheet

200In Stock

$10.15

$9.30

$8.41

$8.40

Min.: 1
Mult.: 1

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

ATMEGA649-16MU
Microchip Technology
1: $13.78
258In Stock

Mfr. Part #
ATMEGA649-16MU

Mouser Part #
556-ATMEGA649-16MU

Microchip Technology

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

Learn More

Datasheet

258In Stock

$13.78

$12.64

$11.45

$11.43

Min.: 1
Mult.: 1

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

ATMEGA645P-MU
Microchip Technology
1: $10.12
1,300In Stock

Mfr. Part #
ATMEGA645P-MU

Mouser Part #
556-ATMEGA645P-MU

Microchip Technology

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

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Datasheet

1,300In Stock

$10.12

$9.27

$8.40

$8.35

Min.: 1
Mult.: 1

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

ATMEGA64L-8AQR
Microchip Technology
1: $15.32
747In Stock

Mfr. Part #
ATMEGA64L-8AQR

Mouser Part #
556-ATMEGA64L-8AQR

Microchip Technology

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

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Datasheet

747In Stock

Cut Tape

$15.32

$14.93

$14.92

$14.90

$13.75

Reel

$12.70

Min.: 1
Mult.: 1

: 1,000

8-bit Microcontrollers - MCU AVR 64K FLASH 2K EE 4K SRAM ADC 1.8V

ATMEGA645V-8AU
Microchip Technology
1: $11.32
176In Stock

Mfr. Part #
ATMEGA645V-8AU

Mouser Part #
556-ATMEGA645V8AU

Microchip Technology

8-bit Microcontrollers - MCU AVR 64K FLASH 2K EE 4K SRAM ADC 1.8V

Learn More

Datasheet

176In Stock

$11.32

$10.57

$10.54

Quote

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-16MHz, 5V

ATMEGA645-16AUR
Microchip Technology
1: $11.58
748In Stock

Mfr. Part #
ATMEGA645-16AUR

Mouser Part #
556-ATMEGA645-16AUR

Microchip Technology

8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-16MHz, 5V

Learn More

Datasheet

748In Stock

Cut Tape

$11.58

$10.38

$10.37

Reel

$10.34

Quote

Min.: 1
Mult.: 1

: 1,000

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

ATMEGA644PA-AUR
Microchip Technology
1: $9.50
2,495In Stock

Mfr. Part #
ATMEGA644PA-AUR

Mouser Part #
556-ATMEGA644PA-AUR

Microchip Technology

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

Learn More

Datasheet

2,495In Stock

Cut Tape

$9.50

$8.80

$8.71

$8.67

View

Reel

$7.89

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

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

ATMEGA64A-AUR
Microchip Technology
1: $8.52
2,731In Stock
4,000Expected 2026-10-02

Mfr. Part #
ATMEGA64A-AUR

Mouser Part #
556-ATMEGA64A-AUR

Microchip Technology

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

Learn More

Datasheet

2,731In Stock

4,000Expected 2026-10-02

Cut Tape

$8.52

$8.31

Reel

$7.08

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

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

ATMEGA64A-MUR
Microchip Technology
1: $8.52
6,275In Stock

Mfr. Part #
ATMEGA64A-MUR

Mouser Part #
556-ATMEGA64A-MUR

Microchip Technology

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

Learn More

Datasheet

6,275In Stock

Cut Tape

$8.52

$8.31

Reel

$7.08

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

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

ATMEGA64L-8MUR
Microchip Technology
1: $15.12
2,732In Stock

Mfr. Part #
ATMEGA64L-8MUR

Mouser Part #
556-ATMEGA64L-8MUR

Microchip Technology

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

Learn More

Datasheet

2,732In Stock

Cut Tape

$15.12

$15.11

Reel

$14.26

Quote

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

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

ATMEGA640-16AU
Microchip Technology
1: $14.80
479In Stock

Mfr. Part #
ATMEGA640-16AU

Mouser Part #
556-ATMEGA640-16AU

Microchip Technology

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

Learn More

Datasheet

479In Stock

$14.80

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU AVR 64K FLSH 8K SRAM 4KB EE-16MHZ 5V IND

ATMEGA640-16AUR
Microchip Technology
1: $15.09
679In Stock

Mfr. Part #
ATMEGA640-16AUR

Mouser Part #
556-ATMEGA640-16AUR

Microchip Technology

8-bit Microcontrollers - MCU AVR 64K FLSH 8K SRAM 4KB EE-16MHZ 5V IND

Learn More

Datasheet

679In Stock

Cut Tape

$15.09

$13.90

$13.75

$13.65

View

Reel

$12.48

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

8-bit Microcontrollers - MCU AVR 64K FLSH 8K SRAM 4KB EE-8MHZ 1.8V IND

ATMEGA640V-8AUR
Microchip Technology
1: $15.09
872In Stock

Mfr. Part #
ATMEGA640V-8AUR

Mouser Part #
556-ATMEGA640V-8AUR

Microchip Technology

8-bit Microcontrollers - MCU AVR 64K FLSH 8K SRAM 4KB EE-8MHZ 1.8V IND

Learn More

Datasheet

872In Stock

Cut Tape

$15.09

$14.70

$12.53

Reel

$12.53

Min.: 1
Mult.: 1

: 1,500

8-bit Microcontrollers - MCU 20 MHz Ind Temp

ATMEGA644A-AU
Microchip Technology
1: $7.96
943In Stock
2,080Expected 2026-09-28

Mfr. Part #
ATMEGA644A-AU

Mouser Part #
556-ATMEGA644A-AU

Microchip Technology

8-bit Microcontrollers - MCU 20 MHz Ind Temp

Learn More

Datasheet

943In Stock

2,080Expected 2026-09-28

$7.96

$7.29

$6.60

Min.: 1
Mult.: 1

ATmega644PA 8-bit AVR® Microcontrollers

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