Description:
This board based on Atmega328, there are 14 digital input and output pins, 6 analog inputs, 16Mhz crystal, USB link, power outlets and the ICSP connector. It contains all the components necessary for the microprocessor, simply use the USB cable into your computer to get started.

Specification:
Microcontroller core: AVRmega328P-PU (processing speed of up to 20MIPS)
Operating voltage: +5 V
External Input voltage: +7 V ~ +12 V (recommended)
External input voltage (extreme): +6 V ≤ Vin ≤ +20 V
Digital signal I / O interfaces: 14 (of which 6 PWM outputs)
Analog signal input interface: 6
DC I / O Interface Current: 40 mA
Flash Capacity: 16 KB (other 2K for bootloader)
SRAM static storage capacity: 1KB
EEPROM Storage capacity: 512 bytes
Clock Frequency: 16MHz
Package Included:
1 X  Duemilanove UNO
1 X USB Cable