alleryStart learning →Number of select lines for a 16:1 multiplexer:
A2
B16
C4 (2^4 = 16 inputs)
D8
Answer & Solution
Correct answer: C. 4 (2^4 = 16 inputs)
For 2^n inputs, MUX needs n select lines.
4:1 → 2. 8:1 → 3. 16:1
→ 4. 32:1 → 5. Demux is reverse: 1 input, 2^n outputs, n selects.
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