The Due board for Arduino is a microcontroller board based on the Atmel SAM3X8E ARM Cortex-M3 CPU.

It is the first Arduino board based on a 32-bit ARM core microcontroller.

It has 54 digital input/output pins (of which 12 can be used as PWM outputs), 12 analog inputs,

4 UARTs (hardware serial ports), a 84 MHz clock, an USB OTG capable connection, 2 DAC (digital to analog),

2 TWI, a power jack, an SPI header, a JTAG header, a reset button and an erase button.

Features:

- Microcontroller: AT91SAM3X8E

- Operating Voltage: 3.3V

- Maximum Voltage for I/O Pins: 3.3V

- Input Voltage (recommended): 7-12V

- Digital I/O Pins: 54 (of which 12 provide PWM output)

- Analog Input Pins: 12 (ADC)

- Analog Outputs Pins: 2 (12-bit DAC)

- Total DC Output Current on all I/O lines: 130 mA

- DC Current for 3.3V Pin: 800 mA (MAX)

- DC Current for 5V Pin: 800 mA (MAX)

- Flash Memory: 512 KB all available for the user applications

- SRAM: 96 KB (two banks: 64KB and 32KB)

- Clock Speed: 84MHz