The Arduino Due 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.

Warning: Unlike most Arduino boards, the Arduino Due board runs at 3.3V. The maximum voltage that the I/O pins can tolerate is 3.3V. Applying voltages higher than 3.3V to any I/O pin could damage the board.

Specifications:

• Microcontroller - AT91SAM3X8E
• Operating Voltage - 3.3V
• Input Voltage (recommended) - 7-12V
• Input Voltage (limits) - 6-16V
• Digital I/O Pins - 54 (of which 12 provide PWM output)
• Analog Input Pins - 12
• Analog Output Pins - 2 (DAC)
• Total DC Output Current on all I/O lines - 130 mA
• DC Current for 3.3V Pin - 800 mA
• DC Current for 5V Pin - 800 mA
• Flash Memory - 512 KB all available for the user applications
• SRAM - 96 KB (two banks: 64KB and 32KB)
• Clock Speed - 84 MHz
• Length - 101.52 mm
• Width - 53.3 mm
• Weight - 36 g