Due parameters:
Processor at91sam3x8ea
Working voltage 3.3v
Input voltage 7-12v
Input voltage (limit) 6-20v
Digital i/o 54 (12 pwm outputs)
Simulation input pins 12
Analog output pin 2 (digital conversion)
Total dc output current 130ma for i/o ports
3.3v power supply pins to provide 800 ma current
5v power pins can be used with 800 ma current
Internal flash memory capacity 512kb
Sram96 kb (two banks: 64kb and 32kb)
Clock frequency 84 mhz