The ATmega328-U is a low power and high performance 8-Bit AVR Microcontroller with advanced RISC Architecture.

Features of ATmega328-U Microcontroller

• 32KB Flash
• High Endurance Non-volatile Memory Segments
• Real Time Counter with Separate Oscillator
• Six PWM Channels
• Power-on Reset and Programmable Brown-out Detection
• Internal Calibrated Oscillator
• 23 Programmable I/O Lines
• Operating Voltage: 1.8-5.5V
  
• Temperature Range: -40°C to +85°C
• Speed: Up to 20MHz
• DIP-28 package