A Discussion of the Design Method of Full Adder Circuit

Abstract

A bit full adder is a very important component in the digital system. Design of a full-adder circuit, as an example, by changing its output function expression in the form of expression, use the gates, decoder, multiplexer etc 74 series devices, the eight circuits realization form are given respectively, and briefly analyzed the advantages and disadvantages of the various circuit implementation. The example show that the design of combinational logic circuits has mobility and variety, it could give the instructiveness and the guiding for other design of combinational logic circuits.