The ’HC266 devices have four independent 2-input exclusive-NOR gates and feature open-drain outputs. They perform the Boolean function Y = (A B)\ or Y = AB\ + AB in positive logic.
“This project is a good introduction to digital logic circuits as it will utilize basic concepts of Boolean logic and memory in circuits. You will be using chips such as a Dual D-Type Flip Flop, Quad 2-input XNOR gate, and …