Desgin full adder circuit

 

A full adder circuit can be designed using the following logic gates:

1. Two XOR gates to perform the addition of two binary digits (A and B) and generate the sum (S).
2. An AND gate to perform the operation A and B and generate a carry (Cout).
3. Another AND gate to perform the operation (A xor B) and carry-in (Cin) and generate another carry (Cout).
4. An OR gate to combine the outputs of the second AND gate and the XOR gate to generate the final carry (Cout).

The full adder circuit diagram looks like this:

  A   B   Cin
  |   |   |
  XOR ____
     |    |
     AND   |
     |    |
  Sum ____
     |
     |
Cout

In this circuit, the inputs A, B and Cin represent the binary digits to be added and the carry-in from the previous stage of the addition. The output Sum represents the sum of the binary digits and the output Cout represents the carry generated in the addition.