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In the figure shown, D0 and D1 are digital inputs, S is a control input and Y is the output. When S = 0, then Y = D0. When S = 1, then Y = D1. The given combinational circuit is
- a)2 input decoder
- b)2 input multiplexer
- c)Full Adder
- d)Shift Register
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
In the figure shown, D0 and D1 are digital inputs, S is a control inpu...
Explanation:
2 Input Multiplexer:
- The given combinational circuit is a 2 input multiplexer (MUX).
- A multiplexer is a combinational circuit that selects one of the input data lines and forwards it to the output based on the control input.
- In this case, when the control input S is 0, the output Y is equal to the input D0. When the control input S is 1, the output Y is equal to the input D1.
- Therefore, the behavior described in the circuit matches that of a 2 input multiplexer.
Other Options:
- A 2 input decoder is a combinational circuit that converts a binary code into a single output line. It does not involve selection based on a control input like in the given circuit.
- A full adder is a combinational circuit used for arithmetic operations like addition. It does not involve selection of inputs based on a control input like in the given circuit.
- A shift register is a sequential circuit used for storing and shifting data. It does not match the behavior of the given circuit which involves selecting one of the inputs based on a control signal.
Therefore, the correct option is 2 input multiplexer (option B).
2 Input Multiplexer:
- The given combinational circuit is a 2 input multiplexer (MUX).
- A multiplexer is a combinational circuit that selects one of the input data lines and forwards it to the output based on the control input.
- In this case, when the control input S is 0, the output Y is equal to the input D0. When the control input S is 1, the output Y is equal to the input D1.
- Therefore, the behavior described in the circuit matches that of a 2 input multiplexer.
Other Options:
- A 2 input decoder is a combinational circuit that converts a binary code into a single output line. It does not involve selection based on a control input like in the given circuit.
- A full adder is a combinational circuit used for arithmetic operations like addition. It does not involve selection of inputs based on a control input like in the given circuit.
- A shift register is a sequential circuit used for storing and shifting data. It does not match the behavior of the given circuit which involves selecting one of the inputs based on a control signal.
Therefore, the correct option is 2 input multiplexer (option B).
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Community Answer
In the figure shown, D0 and D1 are digital inputs, S is a control inpu...
Multiplexers:
- A multiplexer is a combinational circuit.
- A multiplexer is Many to one data selector.
- A multiplexer selects one of the many data available at its input depending on the bits on the select line.
- For 2n inputs, there are n select lines that determine, which input is to be connected to the output.
A 2-input multiplexer is as shown below.
Output, Y = D0S̅ + D1S
Output, Y = D0S̅ + D1S
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In the figure shown, D0 and D1 are digital inputs, S is a control input and Y is the output. When S = 0, then Y = D0. When S = 1, then Y = D1. The given combinational circuit isa)2 input decoderb)2 input multiplexerc)Full Adderd)Shift RegisterCorrect answer is option 'B'. Can you explain this answer?
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