Full adder

Table of contents

  1. Introduction
  2. Block diagram
  3. Truth table
  4. Circuit diagram
  5. Full adder from 2 half adder
  6. Full adder from universal gates
  7. Ripple carry adder

Introduction

Full adder is developed to overcome the drawback of Half Adder circuit. It can add two one-bit numbers A and B, and carry c. The full adder is a three-input and two output combinational circuit.

Block diagram

Truth table

Circuit diagram

Full adder from 2 half adder

Full adder from universal gates

Ripple carry adder