ATmega8-Arduino Pin Mapping
A diagram showing the correspondence between the pins on an Arduino board and those of the ATmega8 microcontroller.
Below is the pin mapping for the Atmega8, the original chip used in early Arduinos. The pin mapping for the Atmega168 and the 328P is roughly the same.
Suggested changes
The content on docs.arduino.cc is facilitated through a public GitHub repository. You can read more on how to contribute in the contribution policy.
License
The Arduino documentation is licensed under the Creative Commons Attribution-Share Alike 4.0 license.