Which of the following statements is INCORRECT about 8×1 multiplexer?
2022
Which of the following statements is INCORRECT about 8×1 multiplexer?
Answer: D. It has 2 selection lines. — A multiplexer (MUX) uses selection lines to determine which input line gets directed to the single output line. The relationship between the number of input…
- A.
It has 8 input lines.
- B.
It has only one output line.
- C.
It receives binary information from one of 8 input lines and sends it to output line.
- D.
It has 2 selection lines.
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Correct answer: D
A multiplexer (MUX) uses selection lines to determine which input line gets directed to the single output line. The relationship between the number of input lines (n) and the number of selection lines (s) is governed by the formula:
2s = n
For an 8 X 1 multiplexer:
Inputs (n): 8
Selection lines (s): Since 23 = 8, it requires 3 selection lines, not 2.