View Arduino Pinout Atmega328P Pics. Arduino nano has similar functionalities as arduino duemilanove but with a different package. click the image to enlarge it.

Atmega328p Pinout Diagram Pin Configuration Brief Description Datasheet Components Info
Atmega328p Pinout Diagram Pin Configuration Brief Description Datasheet Components Info from www.componentsinfo.com
It is the most popular of all avr controllers as it is used in arduino boards. The arduino duemilanove board comes with either 1 of 2 microcontroller chips, the atmega168 or the atmega328. It has total 28 pins out of which some are gpio (general purpose input / output) pins and some are power pins.

The arduino duemilanove board comes with either 1 of 2 microcontroller chips, the atmega168 or the atmega328.

The atmega328 is a very popular microcontroller chip produced by atmel. The nano is inbuilt with the atmega328p microcontroller, same as the arduino uno. The atmega328 is a very popular microcontroller chip produced by atmel. click the image to enlarge it.