# Introduction to DEMUX | Number System and Code | Digital Circuit Design in EXTC Engineering | Summary and Q&A

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May 23, 2023
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Introduction to DEMUX | Number System and Code | Digital Circuit Design in EXTC Engineering

## TL;DR

Demultiplexers have one input and multiple outputs, with the number of outputs determined by the select lines. Each output is activated based on the input condition.

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### Q: What are the main features of a demultiplexer?

The main features of a demultiplexer include having one input and multiple outputs, with the number of outputs determined by the select lines. Only one output is activated at a time based on the input conditions.

### Q: How can a demultiplexer be designed?

A demultiplexer can be designed by using logic gates. The expression for each output can be designed based on the select lines and the input condition using logic gates.

### Q: What is the purpose of select lines in a demultiplexer?

Select lines in a demultiplexer determine the number of outputs. The select lines help activate the corresponding output based on the input condition.

### Q: Can a demultiplexer have more than two select lines?

Yes, a demultiplexer can have more than two select lines. The number of select lines determines the number of outputs in a demultiplexer.

## Summary & Key Takeaways

• Demultiplexers have one input and multiple outputs, with the number of outputs determined by the select lines.

• Only one output is activated at a time based on the input conditions.

• The expression for each output can be designed using logic gates.