How many select lines are required for a 1-to-16 demultiplexer?

Options

  • A. 2
  • B. 3
  • C. 4
  • D. 5
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

C. 4

Detailed Explanation

Correct Answer: (C) 4
For a demultiplexer with 16 output lines, the number of select lines is log₂(16) = 4. These four lines select one of the 16 outputs.