Elenco Understanding Logic Gates and Circuits User Manual download pdf (Page 27)

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Project 17: Multiplexer

Details of the Multiplexer Block Diagram and Logic Chart on Next Page.

This circuit demonstrates how a multiplexer works. Turn the slide switch (S1) on. The loose end of the orange wire

represents the Selector (S). First connect the loose end of the orange wire to 1 (this selects the black input). The red

LED will now be on when the black wire is connected to 1 and off when the black wire is connected to 0 (regardless of

what the red wire is connected to). Now connect the loose end of the orange wire to 0 (this selects the red input).

The red LED will now be on when the red wire is connected to 1 and off when the red wire is connected to 0

(regardless of what the black wire is connected to).

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Elenco Understanding Logic Gates and Circuits User Manual Page 27