Microprocessor ATmega2560 Tension of functioning 5V Voltage of entry (recommended) 7-12V Voltage of entry (Limits) 6-20V Foxglove I/O Pines 54 (with which 14 provide exit PWM) Pines of analogical entry 16 Current DC for I/O Pine 40mA Current DC for 3.3V Pine 50mA Flash memory 256 KB of which 8 KB SRAM 8 KB EEPROM 4 KB Speed of clock 16MHz