digital circuits

Question 1

what is the behaviour of a multiplexer?

Answer 1

Hardware version of the if-then-else expression

The idea is to choose between two values(x,y) based on another value (c)

• given three inputs c, x,y
• produces one output
• If c = 0 the output is x
• If c = 1 the output is y

Question 2

draw this multiplexer : z = (if c=0 then x else y)

Answer 2

Question 3

Answer 3