Controller Atmega16u2
Input Voltage (recommended) 7-12V
Digital IO pins 54 (of which 15 provide PWM output)
Analog input pins 16
DC Current per I/O Pin 40 mA
SRAM 16 KB
Clock Speed 16 MHz
Operating voltage 5V
Input Voltage (limits) 6-20V
PWM channel 15
Flash Memory 256 KB of which 8 KB used by bootloader
USB to serial chip Atmega16U2
DC Current for 3.3V Pin 50 mA
The Mega 2560 is an update for the Aduino Mega, which it replaces.
The board is a microcontroller board based on the ATmega2560-16AU .It has 54 digital
input/output pins (of which 14 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. It contains everything needed to support the
microcontroller; simply connect it to a computer with a USB cable or power it with a
AC-to-DC adapter or battery to get started. The Mega is compatible with most shields
designed for the Arduino Duemilanove or Diecimila.