Board per Arduino
Controller: ATmega168
Operating voltage: 3.3V or 5V (depending on model)
DC Current per I/O Pin: 40 mA
Input Voltage: 3.35 -12 V (3.3V model) or 5 - 12 V (5V model)
Analog input pins: 8
Digital IO pins: 14 (of which 6 provide PWM output)
EEPROM: 512 bytes
Weight: 0.100kg
PWM channel: 6
Clock Speed: "8 MHz (3.3V model) or 16 MHz (5V model)"
SRAM: 1kb
Flash Memory: 16 KB (of which 2 KB used by bootloader).