Digital Electronics - Describing Logic Circuits - Discussion
Discussion Forum : Describing Logic Circuits - General Questions (Q.No. 24)
24.
An OR gate with inverted inputs functions as:
Discussion:
2 comments Page 1 of 1.
Siri said:
2 years ago
A | B | A+B
---------------
0 | 0 | 0
0 | 1 | 1
1 | 0 | 1
1 | 1 | 1
This is OR if all inputs are inverted.
A | B | A+B.
-----------------
1 | 1 | 1
1 | 0 | 1
0 | 1 | 1
0 | 0 | 0
This is the NAND gate output.
So, the NAND gate is correct.
---------------
0 | 0 | 0
0 | 1 | 1
1 | 0 | 1
1 | 1 | 1
This is OR if all inputs are inverted.
A | B | A+B.
-----------------
1 | 1 | 1
1 | 0 | 1
0 | 1 | 1
0 | 0 | 0
This is the NAND gate output.
So, the NAND gate is correct.
Jyothsna said:
1 decade ago
For example
A=1,A'=0
B=1,B'=0
OR
A'+B'=0
NAND
{AB)'=A'+B'
A=1,A'=0
B=1,B'=0
OR
A'+B'=0
NAND
{AB)'=A'+B'
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