Arduino UNO R3 USB Microcontroller

Specifications

• Microcontroller: ATmega328P
  
• Inputs and Outputs:
  
  • Standard Digital I/O: 14
    
  • PWM: 6
    
  • Analog Inputs: 6
    
  • Barrel Jack Supply Voltage: 7 to 12 V recommended/6 to 20 V Total Range
    
  • Crystal Clock: 16 MHz
    
  • Flash Memory: 32 KB
    
  • SRAM: 2 KB
    
  • EEPROM: 1 KB

Resources

• ATmega328P Datasheet (PDF file)