A decoder is nothing but a demultiplexer without control inputs data input enable input None of these
Question
A decoder is nothing but a demultiplexer without control inputs data input enable input None of these
Solution
A decoder is a type of demultiplexer without data input or enable input. It is a combinational circuit that converts binary information from n input lines to a maximum of 2^n unique output lines.
Here are the steps to understand this:
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A demultiplexer is a circuit that receives information on a single line and transmits this over one of several output lines. The selection of the specific output line is controlled by the state of additional inputs known as control or select lines.
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A decoder, on the other hand, is a circuit that changes a code into a set of signals. It is called a decoder because it does the reverse of encoding, but we will begin our study of encoders and decoders with decoders because they are simpler to understand.
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The main difference between a decoder and a demultiplexer lies in the presence of an enable input. In a demultiplexer, the enable input is needed to activate the circuit. However, a decoder does not require an enable input to function.
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