picoPower technology AVR Microcontroller.

ATmega325P, ATmega3250P  Features:

• ATmega325P -64 pin version
• ATmega3250P - 100 pin version
• 32-Kbyte self-programming Flash Program Memory
• 2-Kbyte SRAM,
  
• 1-KByte EEPROM,
  
• 8 Channel 10-bit A/D-converter.
  
• JTAG interface for on-chip-debug.
  
• Up to 20 MIPS throughput at 20 MHz.
  
• 1.8 - 5.5 Volt Operation.