Due AT91SAM3X8E ARM Cortex-M3 Board, 84MHz, 512KB Board compatible with Arduino

Due AT91SAM3X8E ARM Cortex-M3 Development Board – 84MHz 512KB Flash Compatible with Arduino

This is Due AT91SAM3X8E ARM Cortex-M3 Board 84MHz 512KB Board compatible with Arduino.

The Due is a microcontroller board based on the Atmel SAM3X8E ARM Cortex-M3 CPU. The Due Arduino AT91SAM3X8E ARM Cortex-M3 Board 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.

The SAM3X has 512KB (2 blocks of 256KB) of flash memory for storing code. The bootloader is pre-burned in a factory from Atmel and is stored in a dedicated ROM memory. The available SRAM is 96KB in two contiguous banks of 64KB and 32KB. All the available memory (Flash, RAM, and ROM) can be accessed directly as a flat addressing space.

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

Connections / Interfaces

Digital I / O pins: 54

With PWM: 12

USB: Yes

SPI: No

I²C: No

ICSP: Yes

TWI: 2x

UART: 4x

CAN: Yes

SAC: 2x

LAN: No

Bluetooth: No

 

Why Consider the Official Boards?

Feature	Official Arduino Boards	Clone Boards
Warranty	✅ 1-Year Official Warranty	❌ None / Limited
Build Quality	✅ High-Grade Components	⚠️ Varies
Software Support	✅ 100% Compatible	⚠️ May Face Issues
Firmware Updates	✅ Regular Official Releases	❌ Rare / None
Durability	✅ Long Lifespan & Support	⚠️ Shorter Life

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Features :

1. A 32-bit core, that allows operations on 4 bytes wide data within a single CPU clock.
2. CPU clock at 84Mhz
3. 96KBytes of SRAM
4. 512KBytes of flash memory for code
5. A DMA controller, that can relieve the CPU from doing memory intensive tasks.