connect S1 and S0 to a 2x4 active high decoder then connect each output of the decoder with the enable of each three-state buffer. Each of with has an input of D0,D1,D2,D3 respectively. Connect the outputs of each with an OR gate (since only one can be active at a time, whichever's active will be the output).
24-to1mux circuit
8:256 decoder circuit can be implemented by using 4:16 decoder circuit
Additional hard ware refer to digital circuits in electronics domain. the term extra hardware means extra logic devices gates after using universal devices like multiplexer decoder and memories. the number extra hardware can be fixed by using proper solving of k maps.
Use the multiplexer to choose the correct output based on the inputs (use the truth table).
using 8:1 mux....
using a buffer retainer
Personally describing VHDL code for multiplexer can be quite difficult without prior knowledge. It takes many VHDLs to be a multiplexer.
help
many inputs one outputs
Logic circuit forplementation of a full adder using decoder and 2 or gate? Read more:Logic_circuit_forplementation_of_a_full_adder_using_decoder_and_2_or_gate
Using a braille decoder.
design and implementation of a buffer circuit using operational amplifier