Original Arduino Due Board

The Arduino Due is a microcontroller board based Original Arduino Due Board on theAtmel 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.

The Arduino Due Board contains everything needed to support the microcontroller; simply connect it to a computer with a micro-USB cable or power it with an AC-to-DC adapter or battery to get started. The Due is compatible with all Arduino shields that work at 3.3V and are compliant with the 1.0 Arduino pinout.

The Due follows the 1.0 pinout:

• TWI: SDA and SCL pins that are near to the AREF pin.
• IOREF: allows an attached shield with the proper configuration to adapt to the voltage provided by the board. This enables shield compatibility with a 3.3V board like the Due and AVR-based boards which operate at 5V.
• An unconnected pin, reserved for future use.
  

  Additional information

  Model Type	Arduino Due
  Microcontroller Chip	AT91SAM3X8E
  Input Voltage (limit)	6-16V
  Input Voltage(Recommended)	7-12V
  Analog I/O Pins	12
  Digital I/O Pins	54 (of which 12 provide PWM output)
  Analog Output Pins	2 (DAC)
  Clock Speed	84 MHz
  Flash Memory	512 KB
  SRAM (KB)	96
  DC Current for 3.3V Pin (mA)	800
  DC Current per I/O Pin (mA)	130
  On Board LEDs	Yes
  Operating Temperature (C)	-20 to 80
  Weight (gm)	36
  Length (mm)	102
  Width (mm)	54
  Height (mm)	25