ATmega328P-PU with Arduino Bootloader pre-loaded

The high-performance Atmel picoPower 8-bit AVR RISC-based microcontroller combines 32KB ISP flash memory with read-while-write capabilities, 1024B EEPROM, 2KB SRAM, 23 general purpose I/O lines, 32 general purpose working registers, three flexible timer/counters with compare modes, internal and external interrupts, serial programmable USART, a byte-oriented 2-wire serial interface, SPI serial port, a 6-channel 10-bit A/D converter (8-channels in TQFP and QFN/MLF packages), programmable watchdog timer with internal oscillator, and five software selectable power saving modes. The device operates between 1.8-5.5 volts.

Features:

• High Performance, Low Power Atmel®AVR® 8-Bit Microcontroller Family
  
• Advanced RISC Architectur
  
• High Endurance Non-volatile Memory Segments
  
• Atmel® QTouch® library support
  
• Peripheral Features
  
• Special Microcontroller Features
  

Specifications:

 MCU, 8BIT, ATMEGA, 20MHZ, DIP-28

•  Controller Family/Series: ATmega
  
•  Program Memory Size: 32KB
  
•  RAM Memory Size: 2KB
  
•  CPU Speed: 20MHz
  
•  No. of I/O's: 23
  
•  MCU Case Style: DIP
  
•  No. of Pins: 28
  
•  Embedded Interface Type: I2C, SPI, UART
  
•  Supply Voltage Min: 1.8V
  
•  Supply Voltage Max: 5.5V
  
•  Packaging: Each
  
•  MSL: -
  
•  SVHC: No SVHC (16-Jun-2014)
  
•  Base Number: megaAVR
  
•  EEPROM Memory Size: 1KB
  
•  IC Generic Number: 328
  
•  Logic Function Number: 328
  
•  MPU Core Size: 8bit
  
•  No. of ADC Inputs: 6
  
•  No. of PWM Channels: 6
  
•  No. of Timers: 3
  
•  Operating Temperature Max: 85°C
  
•  Operating Temperature Min: -40°C
  
•  Operating Temperature Range: -40°C to +85°C
  
•  Oscillator Type: External, Internal
  
•  Peripherals: ADC, Comparator, RTC
  
•  Program Memory Size: 32KB
  
•  Supply Voltage Range: 1.8V to 5.5V