It has one input and 2n outputs of selected lines. Input and output lines It has n inputs lines and 2n output lines. It uses six individual gates consisting of AND, NOT gates. Boolean Expression Implementation It uses AND gate or NAND gates and NOT gates. It is a combinational logic circuit designed to convert a serial data signal at the input to parallel data at its several output lines. Comparison Table Between Decoder and Demultiplexer Parameters of Comparison Decoder Demultiplexer Definition The circuit decodes the binary information by taking n input signals to 2 n output signals. If the user selects n lines, then the demultiplexer generates a 2n number of outputs. The demultiplexer takes an input signal using data routers and then converts it into multiple output signals based on the selected lines. It is used to transmit signals from one destination to others and hence termed as a distributor. The demultiplexer is the circuit designed to execute general logic along with a multiplexer. Decoders do not use any device to input the data as in demultiplexer. If the circuit takes n inputs, then the decoder generates two to the power of n (2n) number of outputs. The decoders system takes multiple inputs and produces multiple outputs using the AND gates and NAND gates. Decoder circuits are designed to convert binary information in applications like seven-segment display, multiplexing, address decoding in-memory systems.
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