Question

How many select lines would be required for an 4096-line-to-1-line multiplexer?

Answer 1

Answer:

Very easy

Explanation:

Try again urself

Answer 2

The correct answer is 12.

Multiplexer:

1) A multiplexer is Many to one data selector

2) A multiplexer chooses one of the numerous data accessible at its feedback relying upon the pieces on the select line

3) For 2ⁿ contributions, there are n select lines that decide, which info is to be associated with the result.

4) Number of control lines = log₂(number of info lines)

In this way, 'a' control lines can make 2ᵃ blends.

Therefore,

A 4096 × 1 multiplexer selects one of the 4096 inputs and presents it to the output, i.e.  

2ⁿ = 4096  

n = log₂ 4096 = log₂ 2¹²  

n = 12 log₂2  

n = 12  

So the number of select lines will be 12.