Arduino Due Development Board

Original and the best - Arduino Due Development Board

The Arduino Due is the newcomer microcontroller board in the Arduino boards family. It's the first board based on a 32 bit ARM core processor, the Atmel SAM3X8E ARM Cortex-M3 MCU, that improve all the standard Arduino functionalities and add more new features.

It offer 54 digital input/output pins (of which 16 can be used as PWM outputs, with selectable resolution), 12 analog inputs with 12 bit of resolution, 4 UARTs (hardware serial ports), and two DAC outputs (digital to analog converter), 84 MHz crystal oscillator, two USB connections, a power jack, an ICSP header, a JTAG header, and a reset button. The maximum voltage that the I/O pins can provide or tolerate is 3.3V. Providing higher voltages, like 5V to an input pin could damage the board.

The Due has two usb connectors, the one with the micro-usb B connector is the native one capable to act as an usb host, that means you can connect compatible external usb peripherals to the board, such as mouse, keyboards, smartphones. While the other ubs port with the type A connector is intended for debugging purposes.

Summary

Microcontroller AT91SAM3X8E

Operating Voltage 3.3V

Input Voltage (recommended) 7-12V

Input Voltage (limits) 6-20V

Digital I/O Pins 54 (of which 16 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 theoretical 1A, realistic 800 mA

Flash Memory 512 KB all available for the user applications

SRAM 96 KB (64 + 32 KB)

DataFlash 2 Mbit (250 KB)

Clock Speed 84 MHz

Atmel SAM3X8E Microcontroller 
54 x digital I/O pins (12 can be used as PWM outputs)
12 x Analogue inputs
4x UARTS
84 MHz quartz crystal
1 x USB OTG
2 x DAC
2 x TWI
1 x power jack
1 x SPI header
1 x JTAG header
1 x reset button
1 x erase button

Operating Voltage: 3.3V
FLASH Memory: 512 KB
SRAM: 96 KB
Clock Speed: 84 MHz
Dimensions: 101.52 x 53.3 mm