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Datasheet Replacement Marking Code
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25LC128
ATMEGA644-20 (5)ATMEGA644 (60)ATMEGA64 (182)ATMEGA (995)ATMEG (996)ATM (1113)
Atmel

ATMEGA644-20AU

AVR AVR® ATmega Microcontroller IC 8-Bit 20MHz 64KB (32K x 16) FLASH 44-TQFP (10x10)
Atmel

ATMEGA644-20MU

AVR AVR® ATmega Microcontroller IC 8-Bit 20MHz 64KB (32K x 16) FLASH 44-VQFN (7x7)
Atmel

ATMEGA644-20PU

AVR AVR® ATmega Microcontroller IC 8-Bit 20MHz 64KB (32K x 16) FLASH 40-PDIP
Atmel

ATMEGA644-20AUR

AVR AVR® ATmega Microcontroller IC 8-Bit 20MHz 64KB (32K x 16) FLASH 44-TQFP (10x10)
Atmel

ATMEGA644-20MUR

AVR AVR® ATmega Microcontroller IC 8-Bit 20MHz 64KB (32K x 16) FLASH 44-VQFN (7x7)
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