5 Mi Apr 3 2013 althaus The Arduino Due is a microcontroller board based on the Atmel SAM3X8E ARM Cortex-M3 CPU (datasheet). 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 other Arduino boards, the Arduino Due board runs at 3.3V. The maximum voltage that the I/O pins can tolerate is 3.3V. Providing higher voltages, like 5V to an I/O pin could damage the board. The board contains everything needed to support the microcontroller; simply connect it to a computer with a micro-USB cable or power it with a 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. The IOREF pin which 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. The Due has a dedicated forum for discussing the board. Arduino Due (Rev2b) http://arduino.cc/en/Main/ArduinoBoardDue arduino due Atmel SAM3X8E ARM Cortex-M3 microcontrollerboard microcontroller board (arduino) Arduino Due A8

A9

A10

A11

DAC0

DAC1

CANRX

CANTX

A0

A1

A2

A3

A4

A5

A6

A7

D14/TX3

D15/RX3

D16/TX2

D17/RX2

D18/TX1

D19/RX1

D20/SDA3

D21/SCL3

unused

IOREF

MASTER-RESET

IOREF

5V

GND

GND

VIN

D8 PWM

D9 PWM

D10 PWM/SS0

D11 PWM

D12 PWM

D13 PWM

GND

AREF

SDA1

SCL1

D0/RX

D1/TX

D2 PWM

D3 PWM

D4 PWM/SS1

D5 PWM

D6 PWM

D7 PWM

5V

5V

D22

D23

D24

D25

D26

D27

D28

D29

D30

D31

D32

D33

D34

D35

D36

D37

D38

D39

D40

D41

D42

D43

D44

D45

D46

D47

D48

D49

D50

D51

D52

D53

GND

GND