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Arduino Due Microcontroller Board

Arduino Due Microcontroller Board

Arduino Due Microcontroller Board is based on the 32-bit processor Atmel SAM3X8E ARM Cortex-M3 MCU, and improves all the standard Arduino functionalities and adds many new features.

The Arduino Due offers 54 digital input/output pins (of which 12 can be used as PWM outputs, with selectable resolution), 12 analog inputs with 12 bits of resolution, 4 UARTs, two DAC outputs, an 84MHz crystal oscillator, two USB connections, 2 TWI, a power jack, an ICSP header, an SPI header, a JTAG header, and a reset button and erase button. The maximum voltage that the I/O pins can provide or tolerate is 3.3V. The board has two micro USB connectors--one for debugging purposes and a second one capable of acting as a USB host, allowing external USB peripherals such as mouse, keyboards, smartphones, etc. to be connected to the Arduino Due.

The board contains everything needed to support the microcontroller; simply connect it to a computer with a 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.


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ARM Core Benefits
  • 32-bit core allows operations on 4 bytes
    wide data within a single CPU clock
  • CPU Clock at 84Mhz
  • 96KB of SRAM
  • 512KB of Flash memory for code
  • DMA controller can relieve the CPU from
    doing memory intensive tasks
Arduino Due Specifications
  • Microcontroller: AT91SAM3X8E
  • Operating voltage: 3.3V
  • Recommended input voltage: 7-12V
  • Input voltage limits: 6-20V
  • Digital I/O pins: 54 (of which 12 provide PWM output)
  • Analog input pins: 12
  • Analog outputs pins: 2 (DAC)
  • Total DC output current on all I/O lines: 130mA
  • DC current for 3.3V pin: 800mA
  • DC current for 5V pin: 800mA
  • Flash memory: 512KB all available for the user applications
  • SRAM: 96KB (two banks: 64KB and 32KB)
  • DataFlash: 2Mb (250KB)
  • Clock speed: 84MHz


The Atmel® SAM3X ARM® Cortex™-M3 Flash-based Microcontroller (MCU) brings more connectivity to the SAM3 family by adding Ethernet, dual CAN and high-speed USB (HS USB) MiniHost and device with on-chip physical layer (PHY). Devices feature a dual-bank configuration of 256kb and 512kb Flash total and are available in 100-pin and 144-pin QFP and BGA package options. The architecture is designed to support high-speed data transfers and includes a multi-layer bus matrix plus dual SRAM banks, direct memory access (DMA) channels and peripheral DMA controller (PDC) for applications supporting multi-task operations. The SAM3X series is ideal for networking applications in the industrial embedded market and in home and building automation, smart grids and industrial automation.


Learn more about the Atmel SAM3 Cortex™-M3 Microcontrollers

Arduino Due Front View

Arduino Due Front View

Arduino Due Back View

Arduino Due Back View

Arduino Documentary


Arduino The Documentary (2010) English HD from gnd on Vimeo.

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  • Arduino
  • Embedded Solutions