Arduino Nano (compatible)

MCU: ATmega328
Operating Voltage (logic level): 5 V
Input Voltage (recommended): 7-12 V
Input Voltage (limits): 6-20 V
Digital I/O: 14 (6 PWM)
Analog Input: 8
DC Current per I/O: 40 mA
Flash Memory: 32 KB of which 2 KB used by bootloader
SRAM: 2 KB
EEPROM: 1 KB
Clock Speed: 16 MHz
Dimensions: 0.73″ x 1.70″