ATMEGA644P-15AT1 Description Datasheet Core Processor AVR Core Size 8-Bit Speed 16MHz Connectivity I?C SPI UART/USART Peripherals Brown-out Detect/Reset...

ATMEGA644P-15AZ Description Datasheet Core Processor AVR Core Size 8-Bit Speed 16MHz Connectivity I?C SPI UART/USART Peripherals Brown-out Detect/Reset...

ATMEGA644P-15MT Description Datasheet Core Processor AVR Core Size 8-Bit Speed 16MHz Connectivity I?C SPI UART/USART Peripherals Brown-out Detect/Reset...

ATMEGA644P-15MT1 Description Datasheet Core Processor AVR Core Size 8-Bit Speed 16MHz Connectivity I?C SPI UART/USART Peripherals Brown-out Detect/Reset...

ATMEGA644P-15MZ Description Datasheet Core Processor AVR Core Size 8-Bit Speed 16MHz Connectivity I?C SPI UART/USART Peripherals Brown-out Detect/Reset...

ATMEGA644P-20AQ Description Datasheet Core Processor AVR Core Size 8-Bit Speed 20MHz Connectivity I?C SPI UART/USART Peripherals Brown-out Detect/Reset...

ATMEGA644P-20AQR Description Datasheet Core Processor AVR Core Size 8-Bit Speed 20MHz Connectivity I?C SPI UART/USART Peripherals Brown-out Detect/Reset...

ATMEGA644P-20AU Description Datasheet Core Processor AVR Core Size 8-Bit Speed 20MHz Connectivity I?C SPI UART/USART Peripherals Brown-out Detect/Reset...

ATMEGA644P-20AUR Description Datasheet Core Processor AVR Core Size 8-Bit Speed 20MHz Connectivity I?C SPI UART/USART Peripherals Brown-out Detect/Reset...

ATMEGA644P-20MQ Description Datasheet Core Processor AVR Core Size 8-Bit Speed 20MHz Connectivity I?C SPI UART/USART Peripherals Brown-out Detect/Reset...

ATMEGA644P-20MQR Description Datasheet Core Processor AVR Core Size 8-Bit Speed 20MHz Connectivity I?C SPI UART/USART Peripherals Brown-out Detect/Reset...

ATMEGA644P-20MU Description Datasheet Core Processor AVR Core Size 8-Bit Speed 20MHz Connectivity I?C SPI UART/USART Peripherals Brown-out Detect/Reset...