ATmega328P MCU with Arduino Uno bootloader

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This product has been retired. Listed here for reference only.

This is the same Atmel AVR ATmega328P microcontroller used in the official Arduino Uno, as well as our Eleven, EtherTen, USBDroid, and other boards. Perfect for building your own Arduino-compatible project directly on a breadboard or on a custom PCB, or for replacing the MCU in an existing board.

Comes with the Arduino Uno bootloader pre-installed.

Better still, it even has a special label stuck on top with details of the pinout, so you don't even need to look up the datasheet when connecting it up in your project!


  • Arduino bootloader
  • Handy pinout label on top
  • 23 programmable I/O lines
  • 6-channel ADC
  • 0 - 4MHz@1.8 - 5.5V, 0 - 10MHz@2.7 - 5.5.V, 0 - 20MHz @ 4.5 - 5.5V
  • 28-pin DIP format for easy use in breadboards or Arduino-compatible boards


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