Features:

• 64-Kbyte self-programming Flash Program Memory
• 4-Kbyte SRAM
• 2-KByte EEPROM
• 8 Channel 10-bit A/D-converter
• JTAG interface for on-chip-debug
• Up to 20 MIPS throughput at 20 MHz (ATmega644)
• 1.8 - 5.5 Volt Operation (ATmega644V)