Lecture 9

Question 1

Multiplexer

Answer 1

Chooses an output from among several possible inputs based on the value of a select signal

Question 2

2:1 MUX

Answer 2

If S=0, Y = D0 (Y is 1 if S=0 and D0=1)

If S=1. Y=D1 (Y is 1 if S=1 and D1 = 1)

Question 3

2:1 MUX Tristate Buffer

Answer 3

S=0 —> tristate T0 enabled, allowing D0 to flow to Y

S=1 —> tristate T1 enabled, allowing D1 to flow to Y