47+ Atmega328 Arduino Uno Pinout Background. In contrast, pin change interrupts can be activated on any of the pins. For those of you who are using an atmega328 with the arduino bootloader code on your own circuit board here is the pinout details which shows the chip pin numbers and the associated arduino pins.

Arduino UNO R3
Arduino UNO R3 from content.arduino.cc
Arduino nano has similar functionalities as arduino duemilanove but with a different package. Arduino uno and atmega328 pinout. In contrast, pin change interrupts can be activated on any of the pins.

There are two external interrupt pins on the atmega168/328 called int0 and int1.

The atmega328 is one of the microcontroller chips that are used with the popular arduino duemilanove boards. The atmega328 is one of the microcontroller chips that are used with the popular arduino duemilanove boards. It is the most popular of all avr controllers as it is used in arduino boards. The table below gives a description for each of the pins, along with their function.