DeMultiplexor

Demultiplexor (deMUX): MUX with input and output reversed

Analogy: mail being routed to the right box in a mailroom

1-n deMUX:

Data inputs: 1

Control inputs: ceil( lg n )

Outputs: n

1-2 deMUX:

control input is 0: input goes to z0.

control input is 1: input goes to z1.

Condensed truth table:

c

z1

z0

0

0

x

z0 = \cx

1

x

0

z1 = cx