4 To 16 Decoder With Enable. When two 3 to 8 decoder circuits are combined the enable pin acts as the input for both the decoders. Figure a 2 to 4 line decoder with enable.
A decoder circuit of the higher combination is obtained by adding two or more lower combinational circuits. The parallel inputs a 2 a 1 a 0 are applied to each 3 to 8 decoder. When two 3 to 8 decoder circuits are combined the enable pin acts as the input for both the decoders.
2 to 4 line decoder with enable input truth table.
4 to 16 decoder circuit is obtained from two 3 to 8 decoder circuits or three 2 to 4 decoder circuits. The block diagram of 4 to 16 decoder using 3 to 8 decoders is shown in the following figure. 2 to 4 line decoder with enable input truth table. A decoder circuit of the higher combination is obtained by adding two or more lower combinational circuits.
