The logic diagram shown in the figure represents
|
The logic diagram shown in the figure represents
A. 1 to 4 Demultiplexer
B. 4 to 2 Encoder
C. 1 to 4 Decoder
D. 4 to 1 Multiplexer
Please scroll down to see the correct answer and solution guide.
Right Answer is: A
SOLUTION
The given logic circuit represents 2 to 4 decoder and 1 to 4 line demultiplexer.
For the decoder, the inputs are A1 and A0, and the enable is input E.
For demultiplexer, input E provides the data, while other inputs accept the selected variables.
NOTE: Decoder and Demultiplexer can be interconverted from one to another.
|
Decimal Value |
Enable |
Input |
Output |
||||
|
|
E |
A1 |
A0 |
D0 |
D1 |
D2 |
D3 |
|
|
0 |
x |
x |
0 |
0 |
0 |
0 |
|
0 |
1 |
0 |
0 |
1 |
0 |
0 |
0 |
|
1 |
1 |
0 |
1 |
0 |
1 |
0 |
0 |
|
2 |
1 |
1 |
0 |
0 |
0 |
1 |
0 |
|
3 |
1 |
1 |
1 |
0 |
0 |
0 |
1 |