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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Description Datasheet Availability Pricing (CRC) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Core
Program Memory Size
Data RAM Size
Package / Case
Maximum Clock Frequency
ADC Resolution
Number of I/Os
Supply Voltage - Min
Supply Voltage - Max
Mounting Style
Data Bus Width
Minimum Operating Temperature
Maximum Operating Temperature
Series
Packaging
Microchip Technology 8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-16MHZ 5V
Datasheet
2 000Expected 3/18/2027
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 64kB Flash 2kB EEPROM 54 I/O Pins
Datasheet
900Expected 3/29/2027
Min.: 1
Mult.: 1

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 Tray
Microchip Technology 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V
Datasheet
1 120On Order
Min.: 1
Mult.: 1

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 Tray
Microchip Technology 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE - 20MHZ 5V
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1
Mult.: 1

AVR 64 kB 4 kB MLF-44 20 MHz 10 bit 32 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega644 Tray
Microchip Technology 8-bit Microcontrollers - MCU 20 MHz Ind Temp
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 4 000
Mult.: 4 000
: 4 000

AVR VQFN-44 20 MHz 1.8 V 5.5 V SMD/SMT 8 bit ATmega644 Reel
Microchip Technology 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE-20MHZ IND,5V
Datasheet
Non-Stocked Lead-Time 11 Weeks
Min.: 2 000
Mult.: 2 000
: 2 000

AVR TQFP-44 20 MHz 2.7 V 5.5 V SMD/SMT 8 bit ATmega644P Reel
Microchip Technology 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 360
Mult.: 360

AVR 64 kB 4 kB VQFN-44 20 MHz 32 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega644P Tray
Microchip Technology 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE-20MHz EXT,5V
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 4 000
Mult.: 4 000
: 4 000

AVR VQFN-44 20 MHz 2.7 V 5.5 V SMD/SMT 8 bit ATmega644P Reel
Microchip Technology 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE-20MHZ IND,5V
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 4 000
Mult.: 4 000
: 4 000

AVR VQFN-44 20 MHz 2.7 V 5.5 V SMD/SMT 8 bit ATmega644P Reel
Microchip Technology 8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB RAM-16MHz 105C
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 4 000
Mult.: 4 000
: 4 000

AVR VQFN-44 20 MHz 1.8 V 5.5 V SMD/SMT 8 bit ATmega644 Reel
Microchip Technology 8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB RAM-20MHz IND
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 4 000
Mult.: 4 000
: 4 000

AVR VQFN-44 20 MHz 1.8 V 5.5 V SMD/SMT 8 bit ATmega644 Reel
Microchip Technology 8-bit Microcontrollers - MCU AVR 64KB, 2KB EE 10MHz 4KB SRAM, 1.8V
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 360
Mult.: 360

AVR 64 kB 4 kB VQFN-44 10 MHz 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 64KB FLSH 2KB EE 4KB SRAM-10MHz, 1.8V
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 4 000
Mult.: 4 000
: 4 000
AVR VQFN-44 10 MHz 1.8 V 5.5 V SMD/SMT 8 bit ATmega644P Reel
Microchip Technology 8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-10MHz, 1.8V
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 4 000
Mult.: 4 000
: 4 000

AVR VQFN-44 10 MHz 1.8 V 5.5 V SMD/SMT 8 bit ATmega644P Reel
Microchip Technology 8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-10MHz, 1.8V
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 4 000
Mult.: 4 000
: 4 000

AVR VQFN-44 10 MHz 1.8 V 5.5 V SMD/SMT 8 bit ATmega644 Reel
Microchip Technology 8-bit Microcontrollers - MCU AVR 64K FLASH 2K EE 4K SRAM ADC-10MHZ
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 1
Mult.: 1

AVR 64 kB 4 kB MLF-44 10 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 64KB FLSH 2KB EE 4KB SRAM-20MHz, IND
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 260
Mult.: 260

AVR 64 kB 4 kB VQFN-64 16 MHz 10 bit 54 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega645A Tray

Microchip Technology 8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-8MHz, IND
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 4 000
Mult.: 4 000
: 4 000

AVR VQFN-64 8 MHz 1.8 V 5.5 V SMD/SMT 8 bit ATmega645 Reel

Microchip Technology 8-bit Microcontrollers - MCU AVR 64K FLASH 2K EE 4K SRAM ADC 1.8V
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 260
Mult.: 260

AVR 64 kB 4 kB MLF-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 LCD16MHz,5V
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 4 000
Mult.: 4 000
: 4 000

AVR VQFN-64 16 MHz 2.7 V 5.5 V SMD/SMT 8 bit ATmega649 Reel
Microchip Technology 8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM LCD16MHz,5V
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1 500
Mult.: 1 500
: 1 500

AVR TQFP-100 16 MHz 2.7 V 5.5 V SMD/SMT 8 bit ATmega6490 Reel

Microchip Technology 8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM-20MHz, IND
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 4 000
Mult.: 4 000
: 4 000

AVR VQFN-64 16 MHz 1.8 V 5.5 V SMD/SMT 8 bit ATmega649A Reel

Microchip Technology 8-bit Microcontrollers - MCU AVR 64KB FLSH 2KB EE 4KB SRAM LCD-16MHz
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 4 000
Mult.: 4 000
: 4 000

AVR VQFN-64 SMD/SMT 8 bit ATmega649P Reel
Microchip Technology 8-bit Microcontrollers - MCU AVR 64K FLASH 2K EE 4K SRAM ADC LCD
Datasheet
Lead-Time 12 Weeks
Min.: 1
Mult.: 1

AVR 64 kB 4 kB TQFP-64 8 MHz 10 bit 54 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 64K FLASH 2K EE 4K SRAM ADC LCD
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 260
Mult.: 260

AVR 64 kB 4 kB MLF-64 8 MHz 54 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega649 Tray