Question

2. A 2xl mux has two single-bit inputs and one selector bit (S). Such a mux allows you to choose one of the single-bit inputs to appear at the output. Let's say, you want to use four 2x1 such multiplexers to construct a 4-bit 2X1 multiplexer with selector (S). Such a multiplexer can be used to choose among four 4-bit inputs (see figure below). If A, B are all 4-bit inputs and are connected to the inputs of the multiplexer. If S 0, then the 4-bit input A would appear at the output; similarly, if S 1, then the 4-bit input B would appear at the output. You can similarly construct a 4-bit 4xl multiplexer with SiSo as selectors. Design a 4-bit 2xl multiplexer using 4 single-bit 2xl1 multiplexers and show how the selectors are connected. (10) 4-bit 2 X 1 Mux 0 out 1 4 4 4.

Answer 1

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1 A A Ac 32.1 20

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