Arduino Due (Atmel SAM3X8E ARM Cortex-M3, 3.3V)
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Prices updated: 12 Oct 2026
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About this product
The first Arduino board based on a 32-bit ARM core, built around the Atmel SAM3X8E Cortex-M3 running at 84 MHz. It offers 54 digital I/O pins, 12 analog inputs, two DAC outputs and four hardware serial ports, and it runs at 3.3V logic.
Specifications
- Microcontroller
- Atmel SAM3X8E (ARM Cortex-M3)
- Clock speed
- 84 MHz
- Operating voltage
- 3.3V
- Digital I/O pins
- 54 (12 PWM)
- Analog inputs
- 12
- Analog outputs (DAC)
- 2
- UART ports
- 4
- USB
- OTG capable
Frequently asked questions
Can I connect 5V sensors or shields to the Arduino Due?
No. The I/O pins tolerate a maximum of 3.3V, and higher voltages such as 5V can damage the board. Use a level shifter for 5V signals.
Are Uno shields compatible with the Due?
The Due uses the Uno R3 header layout, so many shields fit physically. Check each shield's logic level, since shields that output 5V signals need level shifting before connecting to the Due.
