Logic Diagram For 3 8 Decoder. It is convenient to use an and gate as the basic decoding element for the output because it produces a high or logic 1 output only when all of its inputs are logic 1. A decoder does the opposite job of an encoder.
The active low outputs are y0 y1 y7. Here you have 2 inputs 4 outputs 4 ands 2 nots each and has 2 inputs. In the below diagram given input represented as i1 and i0 all possible outputs named as o0 o1 o2 o3 and a e were represented by enable.
10 rows 3 to 8 line decoder circuit is also called a binary to an octal decoder.
Which are generated by using inputs ie 23. In 3 8 decoder we have 3 input lines and 8 output lines and will just select one output line based on various input combinations. Here the outputs y0 to y7 is considered as lower eight minterms and the output from y8 to y16 is considered as higher eight minterms. Block diagram of 3x8 decoder.