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In D flip-flop, if clock input is LOW, the D input ___________(a) Has no effect(b) Goes high(c) Goes low(d) Has effectI have been asked this question during an interview.Origin of the question is D Flip Flop in chapter Flip-Flops of Digital Circuits

Answer»

The correct CHOICE is (a) Has no effect

Easy explanation: In D flip-flop, if clock input is LOW, the D input has no effect, since the SET and reset INPUTS of the NAND flip-flop are kept HIGH.



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