A combinational logic circuit which is used when it is desired to
| A combinational logic circuit which is used when it is desired to send data form two or more source through a single transmission line is known as
A. encoder
B. decoder
C. multiplexer
D. demultiplexer
Please scroll down to see the correct answer and solution guide.
Right Answer is: C
SOLUTION
Multiplexer:
- Combining one or more signals and transmitting on a single channel
- It consists more than one input line and only one output line and more than one select line
2 X 1 MUX
Decoder:
- It consists of n input lines and maximum of 2n output lines.
- Outputs of the decoder are nothing but the min terms of n input variables.
2 X 4 Decoder
Encoder:
- Reverse operation of decoder.
- It consists of 2n input lines and n output lines.
- Enable signal is optional to represent.
22 × 2 Encoder
Demultiplexer:
- Reverse operation of multiplexer.
- It consists of n selection lines and maximum of 2n outputs and input will be connected to one of these outputs based on the values of selection lines.
1 × 2 DEMUX
Hence option 3 is the correct answer.
