ATmega8-Arduino Pin Mapping

A diagram showing the correspondence between the pins on an Arduino board and those of the ATmega8 microcontroller.

LAST REVISION: 09/19/2023, 02:55 PM

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.

ATmega8 Pin mapping

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