【Atmel】ATMEGA644P-20MU,IC MCU AVR 64K FLASH 44-QFN
【Atmel】ATMEGA644P-20MUR,MCU AVR 64K FLASH 20MHZ 44QFN
【Atmel】ATMEGA644P-20PQ,MCU AVR 64K FLASH 20MHZ 40-PDIP
【Atmel】ATMEGA644P-20PU,IC MCU AVR 64K FLASH 40-DIP
【Atmel】ATMEGA644P-A15AZ,MCU AVR 64KB FLASH 16MHZ 44TQFP
【Atmel】ATMEGA644P-A15MZ,MCU AVR 64KB FLASH 16MHZ 44QFN
ATMEGA644PA-AN,IC MCU 8BIT 64KB FLASH 44TQFP
【Atmel】ATMEGA644PA-ANR,MCU AVR 64KB FLASH 16MHZ 44TQFP