Atmel ATMEGA644PA-PU MC 64K Flash 4K RAM 2K EEPROM 20MHz DIP-40

Technical description of the product (ATMEGA644PA-PU):

Atmel ATMEGA644PA-PU microcontroller with 64KB Flash, 4KB RAM, and 2KB EEPROM. 20MHz clock frequency, 40-pin DIP package for through-hole mounting. RoHS compliant. Operating temperature -40°C to +85°C. Supply voltage (Vcc) 1.8V to 5.5V. Supports 0-4MHz at 1.8V-5.5V, 0-10MHz at 2.7V-5.5V, and 0-20MHz at 4.5V-5.5V. Power consumption: 0.4mA in active mode, 0.1µA in power-down mode. 32 programmable I/O pins.