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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (SGD) Filter the results in the table by unit price based on your quantity.	Qty.
8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V ATMEGA644P-20PU Microchip Technology 1: $10.19 278In 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 Learn More about Microchip Technology microchip atmega644pa mcus	Datasheet	278In Stock	$10.19 $9.33 $8.46	Min.: 1 Mult.: 1
8-bit Microcontrollers - MCU 64K Flash 2K EEPROM 4K SRAM 32 IO Pins ATMEGA644PA-MU Microchip Technology 1: $8.76 791In 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 Learn More about Microchip Technology microchip megaavr 8 bit mcus	Datasheet	791In Stock	$8.76 $8.04 $7.45 $7.29	Min.: 1 Mult.: 1
8-bit Microcontrollers - MCU 64K Flash 2K EEPROM 4K SRAM 32 IO Pins ATMEGA644PA-PU Microchip Technology 1: $9.33 574In 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 Learn More about Microchip Technology microchip megaavr 8 bit mcus	Datasheet	574In Stock	$9.33 $8.53 $7.74	Min.: 1 Mult.: 1
8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-10MHz, 1.8 ATMEGA644PV-10AUR Microchip Technology 1: $9.78 840In 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 Learn More about Microchip Technology microchip atmega644pa mcus	Datasheet	840In Stock	Cut Tape $9.78 $9.52 Reel $8.13	Min.: 1 Mult.: 1 : 2,000
8-bit Microcontrollers - MCU 16 MHz, 85DEG ATMEGA64M1-MU Microchip Technology 1: $9.37 1,218In Stock	Mfr. Part No. ATMEGA64M1-MU Mouser Part No 556-ATMEGA64M1-MU	Microchip Technology	8-bit Microcontrollers - MCU 16 MHz, 85DEG Learn More about Microchip Technology microchip atmega644pa mcus	Datasheet	1,218In Stock	$9.37 $8.60 $7.81	Min.: 1 Mult.: 1
8-bit Microcontrollers - MCU 64kB Flash 2kB EEPROM 32 I/O Pins ATMEGA644-20AU Microchip Technology 1: $9.33 329In Stock 2,400On Order	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 Learn More about Microchip Technology microchip atmega644pa mcus	Datasheet	329In Stock 2,400On Order On Order Ship Dates Mfr. No: ATMEGA644-20AU Stock: 329 Can Dispatch Immediately On Order: 960 Expected 25/1/2027 1,440 Expected 4/3/2027 Factory Lead Time: 20 Weeks	$9.33 $8.57 $7.93 $7.77	Min.: 1 Mult.: 1
8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE-20MHZ 5V IND ATMEGA644-20AUR Microchip Technology 1: $9.55 1,563In Stock	Mfr. Part No. ATMEGA644-20AUR Mouser Part No 556-ATMEGA644-20AUR	Microchip Technology	8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE-20MHZ 5V IND Learn More about Microchip Technology microchip atmega644pa mcus	Datasheet	1,563In Stock	Cut Tape $9.55 $9.29 Reel $7.90	Min.: 1 Mult.: 1 : 2,000
8-bit Microcontrollers - MCU 64kB Flash 2kB EEPROM 32 I/O Pins ATMEGA644V-10AU Microchip Technology 1: $9.33 432In 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 Learn More about Microchip Technology microchip atmega644pa mcus	Datasheet	432In Stock	$9.33 $8.57 $7.77	Min.: 1 Mult.: 1
8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-20MHz, IND ATMEGA649A-AUR Microchip Technology 1: $9.81 525In Stock	Mfr. Part No. ATMEGA649A-AUR Mouser Part No 556-ATMEGA649A-AUR	Microchip Technology	8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-20MHz, IND Learn More about Microchip Technology microchip atmega644pa mcus	Datasheet	525In Stock	Cut Tape $9.81 $9.53 $8.95 Reel $8.09	Min.: 1 Mult.: 1 : 1,000
8-bit Microcontrollers - MCU 64K Flsh 2K EEPROM 4K SRAM 16MHz ATMEGA64A-AU Microchip Technology 1: $7.83 2,025In Stock 2,160Expected 21/1/2027	Mfr. Part No. ATMEGA64A-AU Mouser Part No 556-ATMEGA64A-AU	Microchip Technology	8-bit Microcontrollers - MCU 64K Flsh 2K EEPROM 4K SRAM 16MHz Learn More about Microchip Technology microchip atmega644pa mcus	Datasheet	2,025In Stock 2,160Expected 21/1/2027	$7.83 $7.18 $6.50	Min.: 1 Mult.: 1
8-bit Microcontrollers - MCU 64kB Flash 2kB EEPROM 32 I/O Pins ATMEGA644-20PU Microchip Technology 1: $9.93 29In Stock 110Expected 17/11/2026	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 Learn More about Microchip Technology microchip atmega644pa mcus	Datasheet	29In Stock 110Expected 17/11/2026	$9.93 $9.08 $8.23	Min.: 1 Mult.: 1
8-bit Microcontrollers - MCU 20 MHz Ind Temp ATMEGA644A-PU Microchip Technology 1: $8.02 12In Stock 390Expected 30/10/2026	Mfr. Part No. ATMEGA644A-PU Mouser Part No 556-ATMEGA644A-PU	Microchip Technology	8-bit Microcontrollers - MCU 20 MHz Ind Temp Learn More about Microchip Technology microchip megaavr 8 bit mcus	Datasheet	12In Stock 390Expected 30/10/2026	$8.02 $7.34 $6.65	Min.: 1 Mult.: 1
8-bit Microcontrollers - MCU 64K Flash 2K EEPROM 4K SRAM 32 IO Pins ATMEGA644PA-AU Microchip Technology 1: $8.94 214In 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 Learn More about Microchip Technology microchip megaavr 8 bit mcus	Datasheet	214In Stock	$8.94 $8.79 $8.20 $8.04 View $7.45 $7.29	Min.: 1 Mult.: 1
8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V ATMEGA644P-20AQ Microchip Technology 1: $9.78 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 Learn More about Microchip Technology microchip atmega644pa mcus	Datasheet	47In Stock	$9.78 $8.98 $8.13	Min.: 1 Mult.: 1
8-bit Microcontrollers - MCU AVR 64K FLASH 2K EE 4K SRAM ADC LCD ATMEGA649-16AU Microchip Technology 1: $13.02 25In 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 Learn More about Microchip Technology microchip atmega644pa mcus	Datasheet	25In Stock	$13.02 $11.94 $10.81	Min.: 1 Mult.: 1
8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-20MHz, IND ATMEGA649A-AU Microchip Technology 1: $9.56 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 Learn More about Microchip Technology microchip atmega644pa mcus	Datasheet	23In Stock	$9.56 $8.76 $7.93	Min.: 1 Mult.: 1
8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-8MHz, IND ATMEGA64L-8AUR Microchip Technology 1: $14.27 15In Stock 2,000Expected 12/2/2027	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 Learn More about Microchip Technology microchip atmega644pa mcus	Datasheet	15In Stock 2,000Expected 12/2/2027	Cut Tape $14.27 $13.91 Reel $11.85 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-16MHZ 5V ATMEGA64-16AUR Microchip Technology 1: $14.27 2,000Expected 15/3/2027	Mfr. Part No. ATMEGA64-16AUR Mouser Part No 556-ATMEGA64-16AUR	Microchip Technology	8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-16MHZ 5V Learn More about Microchip Technology microchip atmega644pa mcus	Datasheet	2,000Expected 15/3/2027	Cut Tape $14.27 $13.91 Reel $11.85 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE-20MHZ IND,5V ATMEGA644P-20AUR Microchip Technology 1: $9.78 3,999Expected 4/3/2027	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 Learn More about Microchip Technology microchip atmega644pa mcus	Datasheet	3,999Expected 4/3/2027	Cut Tape $9.78 $9.52 Reel $8.13 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
8-bit Microcontrollers - MCU 64kB Flash 4kB EEPROM 86 I/O Pins ATMEGA640-16AU Microchip Technology 1: $13.98 549On Order	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 Learn More about Microchip Technology microchip atmega644pa mcus	Datasheet	549On Order On Order Ship Dates Mfr. No: ATMEGA640-16AU Stock: 0 On Order: 279 Expected 25/3/2027 270 Expected 26/3/2027 Factory Lead Time: 10 Weeks	$13.98 $12.82 $11.61	Min.: 1 Mult.: 1
8-bit Microcontrollers - MCU AVR 64K FLSH 8K SRAM 4KB EE-8MHZ 1.8V ATMEGA640V-8AU Microchip Technology 1: $12.81 180Expected 1/4/2027	Mfr. Part No. ATMEGA640V-8AU Mouser Part No 556-ATMEGA640V8AU	Microchip Technology	8-bit Microcontrollers - MCU AVR 64K FLSH 8K SRAM 4KB EE-8MHZ 1.8V Learn More about Microchip Technology microchip atmega644pa mcus	Datasheet	180Expected 1/4/2027	$12.81 $12.80 $11.89 $11.87 View $11.56 $11.23 Quote	Min.: 1 Mult.: 1
8-bit Microcontrollers - MCU 64kB Flash 2kB EEPROM 54 I/O Pins ATMEGA64-16AU Microchip Technology 1: $14.01 899Expected 15/2/2027	Mfr. Part No. ATMEGA64-16AU Mouser Part No 556-ATMEGA64-16AU	Microchip Technology	8-bit Microcontrollers - MCU 64kB Flash 2kB EEPROM 54 I/O Pins Learn More about Microchip Technology microchip atmega644pa mcus	Datasheet	899Expected 15/2/2027	$14.01 $12.87 $11.64	Min.: 1 Mult.: 1
8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V ATMEGA644P-20AU Microchip Technology 1: $9.59 689On Order	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 Learn More about Microchip Technology microchip atmega644pa mcus	Datasheet	689On Order On Order Ship Dates Mfr. No: ATMEGA644P-20AU Stock: 0 On Order: 49 Expected 11/12/2026 640 Expected 28/1/2027 Factory Lead Time: 20 Weeks	$9.59 $8.79 $7.94	Min.: 1 Mult.: 1
8-bit Microcontrollers - MCU AVR 64K FLASH 2K EE 4K SRAM ADC-10MHZ ATMEGA644PV-10AU Microchip Technology 1: $9.59 638On Order	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 Learn More about Microchip Technology microchip atmega644pa mcus	Datasheet	638On Order On Order Ship Dates Mfr. No: ATMEGA644PV-10AU Stock: 0 On Order: 158 Expected 25/1/2027 480 Expected 8/3/2027 Factory Lead Time: 20 Weeks	$9.59 $8.79 $7.94	Min.: 1 Mult.: 1
8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-20MHz, IND ATMEGA645A-AU Microchip Technology 1: $8.68 478Expected 11/2/2027	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 Learn More about Microchip Technology microchip atmega644pa mcus	Datasheet	478Expected 11/2/2027	$8.68 $7.97 $7.21	Min.: 1 Mult.: 1

ATmega644PA 8-bit AVR® Microcontrollers

Types of Semiconductors

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ATmega644PA 8-bit AVR® Microcontrollers

Types of Semiconductors