Project 17: multiplexer – Elenco Understanding Logic Gates and Circuits User Manual

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Project 17:

Multiplexer

A

Q

B

S represents the Selector

Equals A when S=1
Equals B when S=0

S

Input (A)

Input (B)

Input (S)

Output (Q)

0 or 1

0

0

0

0 or 1

1

0

1

0

0 or 1

1

0

1

0 or 1

1

1

Multiplexers are often used as switches (e.g. telephone line switch, HDMI switch, etc.).

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3

4

1

2