Podcast
Questions and Answers
How many inputs and outputs does a demultiplexer typically have?
How many inputs and outputs does a demultiplexer typically have?
A demultiplexer has one input and multiple outputs.
The operation of a demultiplexer is the same as a multiplexer.
The operation of a demultiplexer is the same as a multiplexer.
False (B)
What is another name for a demultiplexer?
What is another name for a demultiplexer?
Data distributor
A demultiplexer is a type of sequential circuit.
A demultiplexer is a type of sequential circuit.
What is the function of the enable input (E) in a demultiplexer?
What is the function of the enable input (E) in a demultiplexer?
According to the truth table for the 1:2 demux, what are the outputs Y0 and Y1 when the enable input E is 0?
According to the truth table for the 1:2 demux, what are the outputs Y0 and Y1 when the enable input E is 0?
For the 1:2 demux shown, what is the state of outputs Y0 and Y1 when E=1 and S=0?
For the 1:2 demux shown, what is the state of outputs Y0 and Y1 when E=1 and S=0?
For the 1:2 demux shown, what is the state of outputs Y0 and Y1 when E=1 and S=1?
For the 1:2 demux shown, what is the state of outputs Y0 and Y1 when E=1 and S=1?
Write the Boolean expression for the output Y0 of the 1:2 demultiplexer shown.
Write the Boolean expression for the output Y0 of the 1:2 demultiplexer shown.
Write the Boolean expression for the output Y1 of the 1:2 demultiplexer shown.
Write the Boolean expression for the output Y1 of the 1:2 demultiplexer shown.
Flashcards
What is a Demultiplexer?
What is a Demultiplexer?
A demultiplexer has one input and multiple outputs, acting as a data distributor.
Demultiplexer as a Combinational Circuit
Demultiplexer as a Combinational Circuit
A combinational circuit with an enable input that controls the operating condition.
Demultiplexer when e = 0?
Demultiplexer when e = 0?
The demultiplexer is in a non-operating condition.
Demultiplexer when e = 1?
Demultiplexer when e = 1?
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What is the output Y0 for a 1:2 Demux?
What is the output Y0 for a 1:2 Demux?
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What is the output Y1 for a 1:2 Demux?
What is the output Y1 for a 1:2 Demux?
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Study Notes
- Demultiplexers have one input and many outputs.
- Operations are opposite of a multiplexer.
- It is a data distributor.
- A demultiplexer is a combinational circuit.
- It has an enable input to show the operating condition.
- When e = 0, the demultiplexer is in a non-operating condition.
- When e = 1, the demultiplexer is in operating condition.
1:2 Demux
- A 1:2 demultiplexer has one input (I), an enable input (E), and a select input (S0) and outputs Y0 and Y1.
- Y0 = E'.S0'.I
- Y1 = E.S0.I
1:2 Demux Truth Table
- When E=0 and S=0, Y0=0 and Y1=0
- When E=0 and S=1, Y0=0 and Y1=0
- When E=1 and S=0, Y0=I and Y1=0
- When E=1 and S=1, Y0=0 and Y1=I
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