Encoder and Decoder

An encoder is a combinational circuit that converts binary information in the form of a \({2}^{n}\) input lines into \(n\) output lines, which represent \(n\) bit code for the input. For simple encoders, it is assumed that only one input line is active at a time. A decoder is a combinational logic circuit that converts binary information from the \({n}\) coded inputs to a maximum of \({2}^{n}\) unique outputs. This chapter studies the encoders and decoders.