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Arduino Mega 2560 REV.3, Chipset: ATmega2560, Power supply: 6-20V, Digital I/O: 54 pins (15x PWM), Analog: 16 pins. The Arduino Mega 2560 REV.3 is a microcontroller based on the ATmega2560. With 54 Digital I/O pins, 16 analog inputs, 4 UARTS (hardware serial ports), a 16MHz crystal oscillator, a USB connection, power jack, ICSP Header, and a reset button, the Arduino UNO has everything a microcontroller needs onboard; simply connect it to a computer or an AC/DC adapter and it's ready for use. The Arduino Mega is suitable for using Arduino Shields that are compatible with the Arduino Uno, Duemilanove, or Diecimila. Specifications: - Microcontroller: ATmega328 - Operating voltage: 5V - Input voltage: 7-12 V - Digital I/O pins: 54 (of which 14x PWM) - Analog inputs: 16 - DC current per I/O pin: 40 mA - DC current for 3.3V pin: 50mA - Flash memory: 256 KB - Bootloader: 8 KB - SRAM: 8 KB - EEPROM: 4 KB - Clock speed: 16 MHz Ask a product question