MEGA 2560 Pro

The Arduino Mega 2560 R3 microcontroller is based on the ATmega2560. It featuress 54 digital input/output pins (of which 15 can be used as PWM outputs), 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. The Mega 2560 board is compatible with most shields designed for the Uno.

Specifications:

• Microcontroller: ATmega2560
• Operating Voltage: 5V
• Input Voltage (recommended): 7-12V
• Input Voltage (limit): 6-20V
• Digital I/O Pins: 54 (of which 15 provide PWM output)
• Analog Input Pins: 16
• DC Current per I/O Pin: 20 mA
• DC Current for 3.3V Pin: 50 mA
• Flash Memory: 256 KB of which 8 KB used by bootloader
• SRAM: 8 KB
• EEPROM: 4 KB
• Clock Speed: 16 MHz
• Length: 101.52 mm
• Width: 53.3 mm