Microcontroller: ATmega328
· Operating Voltage: 5V
· Uno Board Recommended Input Voltage: 7 – 12 V
· Uno Board Input Voltage Limits: 6 – 20 V
· Digital I/O Pins: 14 total – 6 of which can be PWM
· Analog Input Pins: 6
· Maximum DC Current per I/O pin at 5VDC: 40ma
· Maximum DC Current per I/I pinat 3.3 VDC: 50ma
· Flash Memory: 32KB (0.5KB used by bootloader)
· SRAM Memory: 2KB
· EEPROM: 1KB
· Clock Speed: 16 MHz