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Description:
1) Since the board operates at 3.3 V, the maximum voltage that can be applied to the I/O pins is 3.3 V. Supplying higher voltages (e.g. 5 V) to the I/O pins may damage the board.
2) Advantages of the ARM core: Using a 32-bit ARM core is more powerful than the other Iduino cores previously used with the 8 AVR.
The main differences are:
- One clock of 32 bits can process 32 bits of data.
- CPU clock frequency is 84 MHz
- 96 KB SRAM
- 512 KB of flash memory
- A DMA controller to relieve the CPU of a large number of calculations.
Specifications:
- Microcontroller: SAM3X8E
- Operating voltage: 3.3 V
- Input voltage (recommended): 7 - 12 V 7 - 12 V
- Input Voltage (Limit): 6 - 16 V 6 - 16 V
- 54 digital I/O pins (12 of which provide PWM outputs)
- Analogue input pin 12
- Analogue output pin 2 (DAC)
- Total DC output current for all I/O lines: 130 mA
- DC current at 3.3 V pin 800 mA
- DC current at 5 V pin 800 mA
- Flash memory 512 KB, all for user applications
- SRAM: 96 KB (two banks: 64 KB and 32 KB)
- Clock speed: 84 MHz
Package includes:
1 x DUE R3 Development Board