Report copyright - · 2019-09-17 · 2 ATmega640/1280/1281/2560/2561 2549A–AVR–03/05 Pin Configurations Figure 1. Pinout ATmega640/1280/2560 GND VCC A0 (AD0) A1 (AD1) A2 (AD2) PA3 (AD3) PA4 (AD4)
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