COMPUTER SCIENCE AND ENGINEERING
DIGITAL LOGIC
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If 4 input MUXes drive a 4 input multiplexer, it results a
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16 input MUX
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8 input MUX
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6 input MUX
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4 input MUX
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Explanation:
Detailed explanation-1: -A 16 × 1 multiplexer has 16 inputs so if we use 4 × 1 multiplexers: At first stage: 4 multiplexers are needed for 16 inputs, At second stage: the output of these 4 multiplexers is connected to inputs of 1 multiplexer. Total 4 × 1 multiplexers needed are 4 + 1 = 5.
Detailed explanation-2: -16x1 Multiplexer We know that 8x1 Multiplexer has 8 data inputs, 3 selection lines and one output. Whereas, 16x1 Multiplexer has 16 data inputs, 4 selection lines and one output. So, we require two 8x1 Multiplexers in first stage in order to get the 16 data inputs.
Detailed explanation-3: -IC 74150 is a popular 16-to-1 Multiplexer IC.
There is 1 question to complete.