COMPUTER SCIENCE AND ENGINEERING
DIGITAL LOGIC
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Many input and one output
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One input and many output
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One input and one output
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None of the above
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Detailed explanation-1: -A multiplexer is a combinational circuit that has 2n input lines and a single output line. Simply, the multiplexer is a multi-input and single-output combinational circuit. The binary information is received from the input lines and directed to the output line.
Detailed explanation-2: -4x1 Multiplexer has four data inputs D0, D1, D2 & D3, two selection lines S0 & S1 and one output Y. The block diagram of 4x1 Multiplexer is shown in the following figure. One of these 4 inputs will be connected to the output based on the combination of inputs present at these two selection lines.
Detailed explanation-3: -Total 4 × 1 multiplexers needed are 4 + 1 = 5.
Detailed explanation-4: -Usually they have several inputs and several outputs that form an open matrix. Loading a specific code word can connect one input to several outputs simultaneously.
Detailed explanation-5: -A 4-to-1 multiplexer consists four data input lines as D0 to D3, two select lines as S0 and S1 and a single output line Y.