Arduino Due is the first Arduino board that is based on a 32 bit ARM architecture. UsuallyLa carte Arduino Due est la première carte Arduino basée sur une architecture ARM 32bit. Usually, the Arduino boards are based on an architecture ATMega 328.
The Arduino Due has an Atmel SAM3X8E ARM Cortex-M3 microcontroller. The Arduino Due 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 !
Technical specifications of the Arduino Due board
The main features of Arduino Due are the following:
- Microcontroller AT91SAM3X8E
- Operating Voltage : 3.3V
- Input Voltage (recommended) : 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 : 130 mA
- DC Current for 3.3V Pin : 800 mA
- DC Current for 5V Pin : 800 mA
- Flash Memory : 512 KB all available for the user applications
- SRAM : 96 KB (two banks: 64KB and 32KB)
- Clock Speed : 84 MHz