Digital Electronics - Combinational Logic Analysis - Discussion
Discussion Forum : Combinational Logic Analysis - General Questions (Q.No. 9)
9.
A 4-variable AND-OR-Invert circuit produces a 0 at its Y output. Which combination of inputs is correct?
none of the above
Discussion:
12 comments Page 2 of 2.
Swarna said:
1 decade ago
Yes my.ex a=0,b=0,c=0&d=0.
a,b is connected to AND1 GATE.c,d is connected to another AND2 GATE.these two AND2 gates connected to OR gate.so AND1 is enable,AND2 is disable.the output of the OR gate is high.these output connected to INVERT ER ,so output is low .
a,b is connected to AND1 GATE.c,d is connected to another AND2 GATE.these two AND2 gates connected to OR gate.so AND1 is enable,AND2 is disable.the output of the OR gate is high.these output connected to INVERT ER ,so output is low .
Sivaramakrishna said:
1 decade ago
For ex a=0 b=0 c=0 d=0
y=1
How it can give 0 output ?
So answer is D.
y=1
How it can give 0 output ?
So answer is D.
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