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How do you design an 16-to-1 multiplexer using a 4-to-1 multiplexer?

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2010-11-25 13:32:58
2010-11-25 13:32:58

Theoretically you use five 4-to-1 multiplexers. You use four of them to connect the 16 inputs. You then have four outputs. Take the fifth multiplexer and connect the four outputs as the inputs. The fifth multiplexer then has a single output that has multiplexed the original 16 inputs.

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Personally describing VHDL code for multiplexer can be quite difficult without prior knowledge. It takes many VHDLs to be a multiplexer.


The question is not clear can you go into discuss question and explain exactly what you want to do I'm sure I can help


Use the multiplexer to choose the correct output based on the inputs (use the truth table).


opposite of de-multiplexer


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because you can select different data types. for example a stereo, you can select DVD, CD or TV. you SELECT the TYPE of DATA you want to use, using a multiplexer method


it can be done using two 8x1 mux accepting 16 inputs ,output of each 8x1 mux goes to 2x1 mux with A,B,C as input selector to 8x1 mux (with A as MSB) and D as selector to 2x1 mux.


It is the enable line. Used to enable the multiplexer to function. For low enable multiplexers, strobe is set to 0 to enable the multiplexer whereas in high enable multiplexers, it is set 1 to enable the multiplexer.


Draw your truth table for the full adder, then incorporate the outputs of the full addder with the inputs of the multiplexer. when your finish you should be able to derive your boolean expressions from your truth table in order to design your circuit.


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A VHDL program for 64 to 1 multiplexer using four 4 to 1 multiplexers is not possible, as four 4 to 1 multiplexers provide only 16 inputs, only 1/4 of what is needed.


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MUX(A, B, S) = A*S + B*S' NOT(A) = MUX(0, 1, A) = 0*A + 1*A' = A' From http://noyesno.net/


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A: Multiplexer sends gabs of information on one line the multiplexer decodes what is designed to select from the data


Multiplexer is an electronic term. A multiplexer combines input from several sources into one. Individuals familiar with electronic devices, how they work and how to configure them will know which multiplexer to use for which device and under what circumstances.


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used in telecommunication




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