The Arduino Due is Arduino's first ARM-based development board, powered by the Atmel SAM3X8E — a 32-bit Cortex-M3 processor running at 84MHz. With 54 digital I/O pins, 12 analogue inputs, 2 DAC outputs, and USB-OTG, it brings significantly more computing power while remaining programmable through the familiar Arduino IDE.

The Due features two USB connectors: a micro-USB AB (native) port that can act as a USB host for connecting peripherals like mice, keyboards, and smartphones, and a USB Type-B port for programming and debugging.

Key Features

• 84MHz ARM Cortex-M3 – AT91SAM3X8E processor for high-performance applications
• 512KB Flash / 96KB SRAM – Ample memory for complex programs
• 54 Digital I/O Pins – 12 with PWM output capability
• 12 Analogue Inputs – 12-bit ADC resolution
• 2 DAC Outputs – True analogue output for audio and signal generation
• 4 Hardware UARTs – Multiple serial communication channels
• USB-OTG – Native USB host for connecting external peripherals

Specifications

• Microcontroller: AT91SAM3X8E
• Operating Voltage: 3.3V
• Input Voltage: 7–12V recommended (6–20V limit)
• Digital I/O: 54 pins (12 PWM)
• Analogue Inputs: 12
• Analogue Outputs: 2 (DAC)
• Total DC Output Current: 130mA (all I/O lines)
• Flash Memory: 512KB
• SRAM: 96KB (64KB + 32KB)
• Clock Speed: 84MHz

Ideal For

• Projects requiring high processing power and fast execution
• Audio generation and signal processing (via DAC)
• USB host applications with external peripherals
• Multi-serial communication systems

Package Contents

• 1× Arduino Due board

Resources

• Getting Started with Arduino Due
• Pin Mapping Reference
• AT91SAM3X8E Datasheet (PDF)
• Schematic (PDF)
• EAGLE Design Files