Full adder

Goal

• First step into logic

Level

• Knowing how to use a breadboard

Component

• Only one logic gate array.

How to

The logic circuit of the chip is as followed :

From this chip, we would like to make a adder. It is one of the basic component of everyCPU. It's use is to have two bits. They represent a state either 1 or 0. We will add them with the following scheme : 1 + 1 = 10 1 + 0 = 01 0 + 1 = 01 0 + 0 = 00 ^ this bit is the first bit we add, we will call it A later on.

   ^ this bit is the second bit we add, we will call it B later on.
       ^ this bit is the most significant bit. We call it C1 later on.
        ^ this bit is the least significant bit. We call it C0 later on.

Just follow the