Are You a Multiplexer Pro?

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Questions and Answers

What is the purpose of a demultiplexer?

To store data for later retrieval

To perform arithmetic operations on binary inputs

To switch one common input line to one of several separate output lines (correct)

To connect multiple input lines to a single output line

How does a demultiplexer differ from a multiplexer?

A demultiplexer performs arithmetic operations on binary inputs

A demultiplexer takes multiple input lines and connects them to a single output line

A demultiplexer takes a single input line and connects it to multiple output lines (correct)

A demultiplexer stores data for later retrieval

What is another name for a demultiplexer?

Data receiver

Data transmitter

Data distributor (correct)

Data generator

What type of logic circuit is a demultiplexer?

Combinational logic circuit Signup and view all the answers

What is the reverse of a multiplexer?

Demultiplexer Signup and view all the answers

What are the building blocks of combinational logic circuits?

NAND, NOR, and NOT gates Signup and view all the answers

What is an example of a combinational circuit?

A decoder Signup and view all the answers

What are the three main ways of specifying the function of a combinational logic circuit?

Boolean Algebra, Karnaugh Maps, and Truth Tables Signup and view all the answers

Which gates are classed as 'universal' gates?

NAND and NOR gates Signup and view all the answers

What is the function of a decoder in a combinational circuit?

Converts binary code data into a number of different output lines Signup and view all the answers

Which of the following is true about multiplexers?

They can reduce the number of logic gates required in a circuit design Signup and view all the answers

Which type of multiplexer is constructed using transistors, MOSFET’s or relays?

Analogue multiplexer Signup and view all the answers

What is the advantage of using a multiplexer with a demultiplexer in data transmission?

Only one serial data line is required Signup and view all the answers

What is the maximum switching current in analogue power circuits for multiplexers?

Between 10mA to 20mA per channel Signup and view all the answers

Why are multiplexers also known as data selectors?

Because they can select each input line Signup and view all the answers

What is a truth table used for in logic gates?

To provide a list of output states for each input combination. Signup and view all the answers

What is a multiplexer?

A device used to send one or more signals over a common transmission line. Signup and view all the answers

What is a logic diagram?

A graphical representation of a logic circuit. Signup and view all the answers

What is combinational logic?

The process of combining logic gates together to process signals. Signup and view all the answers

What are some common combinational circuits made up of individual logic gates?

Multiplexers and demultiplexers. Signup and view all the answers

Study Notes

Multiplexers and Demultiplexers

A demultiplexer is a circuit that takes a single input signal and routes it to one of several outputs based on a select input.
A demultiplexer differs from a multiplexer in that it has one input and multiple outputs, whereas a multiplexer has multiple inputs and one output.
Another name for a demultiplexer is a data distributor.

Combinational Logic Circuits

A demultiplexer is a type of combinational logic circuit.
Combinational logic circuits are built from individual logic gates.
Examples of combinational circuits include decoders, multiplexers, and demultiplexers.

Multiplexers

A multiplexer is the reverse of a demultiplexer.
A multiplexer is also known as a data selector because it selects one of several input signals and routes it to a single output.
Multiplexers can be constructed using transistors, MOSFETs, or relays.
The advantage of using a multiplexer with a demultiplexer in data transmission is that it allows for the transmission of multiple signals over a single communication channel.
The maximum switching current in analogue power circuits for multiplexers is 150mA.

Logic Gates and Circuits

Logic gates are the building blocks of combinational logic circuits.
The three main ways of specifying the function of a combinational logic circuit are by using a truth table, a logic diagram, or a Boolean equation.
NAND and NOR gates are considered 'universal' gates because they can be used to create any other type of gate.
A decoder is a type of combinational circuit that takes a binary input and generates a output based on the input.

Truth Tables and Logic Diagrams

A truth table is used to specify the output of a logic circuit for every possible combination of input values.
A logic diagram is a graphical representation of a logic circuit.

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Description

"Master the Basics of Multiplexers: Test Your Knowledge with our Quiz!" Test your understanding of multiplexers, their types, and applications with our quiz. From digital circuits to analog types, this quiz covers all the essential aspects of multiplexers. Sharpen your skills and learn new concepts as you answer questions and ace the quiz. Join now and become a multiplexer expert!