The 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.

Specifications

Operating Voltage	3.3 V
Input Voltage	7-12 V
Digital I/O	54
Analog Input Pins	12
Analog Output Pins	2 (DAC)
Total DC Output Current on all I/O Lines	130 mA
DC Current per I/O Pin	20 mA
DC Current for 3.3 V Pin	800 mA
DC Current for 5 V Pin	800 mA
Flash Memory	512 KB all available for the user applications
SRAM	96 KB
Clock Speed	84 MHz
Length	101.52 mm
Width	53.3 mm
Weight	36 g

Please note: 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.

Details

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