Microchip ATmega644 Series 8-bit Microcontrollers - MCU

Results: 23
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Description Datasheet Availability Pricing (PLN) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Core
Program Memory Size
Data RAM Size
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Maximum Clock Frequency
ADC Resolution
Number of I/Os
Supply Voltage - Min
Supply Voltage - Max
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Minimum Operating Temperature
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Packaging
Microchip Technology 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE-20MHZ 5V IND
Datasheet
3 863In Stock
Min.: 1
Mult.: 1
: 2 000

AVR TQFP-44 20 MHz 2.7 V 5.5 V SMD/SMT 8 bit ATmega644 Reel, Cut Tape
Microchip Technology 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE-20MHZ 5V IND
Datasheet
6 306In Stock
Min.: 1
Mult.: 1
: 4 000

AVR 64 kB 4 kB VQFN-44 20 MHz 10 bit 32 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega644 Reel, Cut Tape
Microchip Technology 8-bit Microcontrollers - MCU 20 MHz Ind Temp
Datasheet
431In Stock
Min.: 1
Mult.: 1

AVR 64 kB 4 kB VQFN-44 20 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 64 KB FL 2 KB EE 4KB RAM 16 MHZ GRN
Datasheet
6In Stock
360Expected 9/21/2026
Min.: 1
Mult.: 1

AVR 64 kB 4 kB VQFN-44 20 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 RAM-20MHz IND
Datasheet
2 495In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 000

AVR 64 kB 4 kB TQFP-44 20 MHz 10 bit 32 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega644 Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU 20 MHz Ind Temp
Datasheet
953In Stock
2 080Expected 10/1/2026
Min.: 1
Mult.: 1

AVR 64 kB 4 kB TQFP-44 20 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 20 MHz Ind Temp
Datasheet
558In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 000

AVR 64 kB 4 kB TQFP-44 20 MHz 10 bit 32 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega644 Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU 64K Flash 2K EEPROM 4K SRAM 32 IO Pins
Datasheet
686In Stock
Min.: 1
Mult.: 1

AVR 64 kB 4 kB TQFP-44 20 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 64K Flash 2K EEPROM 4K SRAM 32 IO Pins
Datasheet
660In Stock
Min.: 1
Mult.: 1

AVR 64 kB 4 kB PDIP-40 20 MHz 10 bit 32 I/O 1.8 V 5.5 V Through Hole 8 bit - 40 C + 85 C ATmega644 Tube
Microchip Technology 8-bit Microcontrollers - MCU 64kB Flash 2kB EEPROM 32 I/O Pins
Datasheet
249In Stock
2 400On 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 ATmega644 Tray
Microchip Technology 8-bit Microcontrollers - MCU 16 MHz, 105C, Green, TQFP
Datasheet
255In Stock
480Expected 10/26/2026
Min.: 1
Mult.: 1

AVR 64 kB 4 kB TQFP-44 20 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 64kB Flash 2kB EEPROM 32 I/O Pins
Datasheet
432In Stock
Min.: 1
Mult.: 1

AVR 64 kB 4 kB TQFP-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 64kB Flash 2kB EEPROM 32 I/O Pins
Datasheet
79In Stock
Min.: 1
Mult.: 1

AVR 64 kB 4 kB PDIP-40 20 MHz 10 bit 32 I/O 2.7 V 5.5 V Through Hole 8 bit - 40 C + 85 C ATmega644 Tube
Microchip Technology 8-bit Microcontrollers - MCU 20 MHz Ind Temp
Datasheet
242In Stock
Min.: 1
Mult.: 1

AVR 64 kB 4 kB PDIP-40 20 MHz 10 bit 32 I/O 1.8 V 5.5 V Through Hole 8 bit - 40 C + 85 C ATmega644 Tube
Microchip Technology 8-bit Microcontrollers - MCU 64K Flash 2K EEPROM 4K SRAM 32 IO Pins
Datasheet
49In Stock
720Expected 3/8/2027
Min.: 1
Mult.: 1

AVR 64 kB 4 kB QFN-44 20 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 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 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 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 RAM-16MHz 105C
Datasheet
Non-Stocked Lead-Time 19 Weeks
Min.: 2 000
Mult.: 2 000
: 2 000

AVR TQFP-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 SRAM-10MHz, 1.8
Datasheet
Non-Stocked Lead-Time 19 Weeks
Min.: 2 000
Mult.: 2 000
: 2 000

AVR 64 kB 4 kB TQFP-44 10 MHz 10 bit 32 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C ATmega644 Reel