Microchip ATMEGA644A-MU, 8bit AVR Microcontroller, ATmega, 20MHz, 64 kB Flash, 44-Pin VQFN

8-Bit megaAVR Microcontrollers, 32KB to 256KB Flash. Here at RS Components we have various megaAVR 8-bit microcontrollers from Atmel. Each of the microcontrollers is based on an enhanced RISC architecture and feature QTouch library support. All the microcontroller types have varying Kb of In-System Programmable Flash, EEPROM and SRAM as well as varying pin and package types. Types of megaAVR 8-bit microcontrollers ATmega32 ATmega64 ATmega128 ATmega324 ATmega325 ATmega406 ATmega640 ATmega644 ATmega645 ATmega1280 ATmega1281 ATmega1284 ATmega2560 ATmega2561 ATmega3250 ATmega6450