Q.
The waveforms A and B given below axe given as input to a NAND gate. Then its logic output Y is Voltage
1378
259
AIIMSAIIMS 2019Semiconductor Electronics: Materials Devices and Simple Circuits
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Solution:
Time
1
0
1
1
1
0
1
1
0
0
1
1
0
0
1
1
1
0
NAND gate is the combination of AND and NOT gate and the output of the two inputs ( and )
NAND gate is
Here, the truth table for the NAND gate will be the following table,
(note 1 for high signal and o for low signal)
| Time | |||
|---|---|---|---|
| 1 | 0 | 1 | |
| 1 | 1 | 0 | |
| 1 | 1 | 0 | |
| 0 | 1 | 1 | |
| 0 | 0 | 1 | |
| 1 | 1 | 0 |