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ATMEGA644

ATMEGA644-20AU vs ATMEGA644-20MU vs ATMEGA644-20AUR

 
PartNumberATMEGA644-20AUATMEGA644-20MUATMEGA644-20AUR
Description8-bit Microcontrollers - MCU 64kB Flash 2kB EEPROM 32 I/O Pins8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE - 20MHZ 5V8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE-20MHZ 5V IND
ManufacturerMicrochipMicrochipMicrochip
Product Category8-bit Microcontrollers - MCU8-bit Microcontrollers - MCU8-bit Microcontrollers - MCU
RoHSYYY
Mounting StyleSMD/SMTSMD/SMT-
Package / CaseTQFP-44MLF-44TQFP-44
SeriesATmega644ATmega644ATmega644
CoreAVRAVRAVR
Data Bus Width8 bit8 bit8 bit
Maximum Clock Frequency20 MHz20 MHz20 MHz
Program Memory Size64 kB64 kB-
Data RAM Size4 kB4 kB-
ADC Resolution10 bit10 bit-
Number of I/Os32 I/O32 I/O-
Operating Supply Voltage2.7 V to 5.5 V2.7 V to 5.5 V2.7 V to 5.5 V
Minimum Operating Temperature- 40 C- 40 C-
Maximum Operating Temperature+ 85 C+ 85 C-
PackagingTrayTrayReel
Height1 mm0.88 mm-
Length10 mm7 mm-
ProductMCUMCUMCU
Program Memory TypeFlashFlash-
Width10 mm7 mm-
BrandMicrochip Technology / AtmelMicrochip Technology / AtmelMicrochip Technology / Atmel
Data RAM TypeSRAMSRAM-
Data ROM Size2 kB2 kB-
Data ROM TypeEEPROMEEPROM-
Interface TypeI2C, SPI, USARTI2C, SPI, USART-
Analog Supply Voltage1.8 V to 5.5 V1.8 V to 5.5 V-
DAC Resolution---
I/O Voltage1.8 V to 5.5 V1.8 V to 5.5 V-
Moisture SensitiveYes--
Number of ADC Channels8 Channel8 Channel-
Number of Timers/Counters3 Timer3 Timer-
Processor SeriesmegaAVRmegaAVRmegaAVR
Product Type8-bit Microcontrollers - MCU8-bit Microcontrollers - MCU8-bit Microcontrollers - MCU
Factory Pack Quantity1603602000
SubcategoryMicrocontrollers - MCUMicrocontrollers - MCUMicrocontrollers - MCU
Supply Voltage Max5.5 V5.5 V-
Supply Voltage Min2.7 V2.7 V-
TradenameAVRAVRAVR
Watchdog TimersWatchdog TimerWatchdog Timer-
Unit Weight0.038801 oz0.032805 oz-
Manufacturer Part # Description RFQ
Microchip Technology / Atmel
Microchip Technology / Atmel 		ATMEGA644-20MUR 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE-20MHZ 5V IND
ATMEGA644P-20AUR 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE-20MHZ IND,5V
ATMEGA644A-AUR 8-bit Microcontrollers - MCU 20 MHz Ind Temp
ATMEGA644A-MU 8-bit Microcontrollers - MCU 20 MHz Ind Temp
ATMEGA644A-AU 8-bit Microcontrollers - MCU 20 MHz Ind Temp
ATMEGA644-20AU 8-bit Microcontrollers - MCU 64kB Flash 2kB EEPROM 32 I/O Pins
ATMEGA644P-20AU 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V
ATMEGA644P-20MU 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V
ATMEGA644-20MU 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE - 20MHZ 5V
ATMEGA644A-PU 8-bit Microcontrollers - MCU 20 MHz Ind Temp
ATMEGA644P-20AQ 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V
ATMEGA644P-20PU 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V
ATMEGA644-20PU 8-bit Microcontrollers - MCU 64kB Flash 2kB EEPROM 32 I/O Pins
ATMEGA644P-20MQ 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V
ATMEGA644-20AUR 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE-20MHZ 5V IND
ATMEGA644P-20MUR 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE-20MHZ IND,5V
ATMEGA644A-MUR 8-bit Microcontrollers - MCU 20 MHz Ind Temp
ATMEGA644P-20AQR 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE-20MHZ IND,5V
ATMEGA644P-20MQR 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE-20MHz EXT,5V
ATMEGA644P-15MT 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V
ATMEGA644P-15MZ 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V
ATMEGA644P-15MT1 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V
ATMEGA644P-20MQR Microcontrollers - MCU 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE-20MHz EXT,5V
ATMEGA644-20MUR Microcontrollers - MCU 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE-20MHZ 5V IND
ATMEGA644A-MUR Microcontrollers - MCU 8-bit Microcontrollers - MCU 20 MHz Ind Temp
ATMEGA644P-20AQR Microcontrollers - MCU 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE-20MHZ IND,5V
ATMEGA644-20AUR Microcontrollers - MCU 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE-20MHZ 5V IND
ATMEGA644A-AUR Microcontrollers - MCU 8-bit Microcontrollers - MCU 20 MHz Ind Temp
ATMEGA644P-20MQ Microcontrollers - MCU 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V
ATMEGA644P-20AQ Microcontrollers - MCU 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V
ATMEGA644P-20PQ Microcontrollers - MCU 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V
ATMEGA644P-20AUR Microcontrollers - MCU 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE-20MHZ IND,5V
ATMEGA644P-20MUR Microcontrollers - MCU 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE-20MHZ IND,5V
ATMEGA644P-20MU Microcontrollers - MCU 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V
ATMEGA644-20PU Microcontrollers - MCU 8-bit Microcontrollers - MCU 64kB Flash 2kB EEPROM 32 I/O Pins
ATMEGA644-20MU Microcontrollers - MCU 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE - 20MHZ 5V
ATMEGA644A-MU Microcontrollers - MCU 8-bit Microcontrollers - MCU 20 MHz Ind Temp
ATMEGA644-20AU Microcontrollers - MCU 8-bit Microcontrollers - MCU 64kB Flash 2kB EEPROM 32 I/O Pins
ATMEGA644P-20PU Microcontrollers - MCU 8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V
ATMEGA644P-20AU IC MCU 8BIT 64KB FLASH 44TQFP
ATMEGA644A-PU Microcontrollers - MCU 8-bit Microcontrollers - MCU 20 MHz Ind Temp
ATMEGA644A-AU Microcontrollers - MCU 8-bit Microcontrollers - MCU 20 MHz Ind Temp
ATMEGA644-MU New and Original
ATMEGA644P-15AT IC MCU 8BIT 64KB FLASH 44TQFP
ATMEGA644P-15AT1 IC MCU 8BIT 64KB FLASH 44TQFP
ATMEGA644P-15ATI New and Original
ATMEGA644P-15AZ IC MCU 8BIT 64KB FLASH 44TQFP
ATMEGA644P-15MT IC MCU 8BIT 64KB FLASH 44VQFN
ATMEGA644P-15MT1 IC MCU 8BIT 64KB FLASH 44VQFN
ATMEGA644P-15MZ IC MCU 8BIT 64KB FLASH 44VQFN
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