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How many 2 * 4 decoders are needed to design a 4 * 16 line decoder?

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How many 2 * 4 decoders are needed to design a 4 * 16 line decoder?

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Explanation: A binary decoder is a combinational logic circuit which decodes binary information from n-inputs to a maximum of 2n outputs. Here, number of outputs = 16. 16 = 24 = 2n. Thus, number of inputs is 4.

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