Digital Electronics - Logic Gates - Discussion
Discussion Forum : Logic Gates - General Questions (Q.No. 2)
2.
If a 3-input NOR gate has eight input possibilities, how many of those possibilities will result in a HIGH output?
Discussion:
38 comments Page 2 of 4.
ANOOP K SIVAN said:
9 years ago
Just add all three inputs and NOT it for the actual o/p.
HARIOM SHARMA said:
9 years ago
i/p- 000 then o/p- 111 (high).
Pooooja said:
9 years ago
Yeah, right thanks @Punju.
Punju said:
9 years ago
By the truth table at 0 0 input output is 1 and remaining all are 0. Therefore the high output is the 1.
Therefore, the ans is option : A.
Therefore, the ans is option : A.
Sangeetha said:
9 years ago
If all input is 1 then it is high, if all inputs are zero then it is low.
Megu said:
9 years ago
Above all are false.
Hhki said:
10 years ago
NOR gate consider the outputs to be high if the inversion of it is high.
Janci said:
1 decade ago
Yes @Nandi 4078b is the single 8 inputs norgate in CMOS technology.
Nandi said:
1 decade ago
But do we have more than 2 input NOR gate?
Aarti said:
1 decade ago
NOR is OR+INVERT so OR will be 1 when any one of inputs is '1' but in NOR output will be inverted OR. So when all inputs are '0' OR output will be '0' and its inverted means NOR output will be '1'.
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