Which of the following is correct for a D latch?(a) The output toggles if one of the inputs is held HIGH(b) Q output follows the input D when the enable is HIGH(c) Only one of the inputs can be HIGH at a time(d) The output complement follows the input when enabledI had been asked this question in final exam.Asked question is from D Flip Flop in section Flip-Flops of Digital Circuits

Which of the following is correct for a D latch?(a) The output toggles

1.	Which of the following is correct for a D latch?(a) The output toggles if one of the inputs is held HIGH(b) Q output follows the input D when the enable is HIGH(c) Only one of the inputs can be HIGH at a time(d) The output complement follows the input when enabledI had been asked this question in final exam.Asked question is from D Flip Flop in section Flip-Flops of Digital Circuits
Answer» The CORRECT choice is (B) Q output follows the input D when the enable is HIGH For explanation I would SAY: If the clock is HIGH then the D flip-flop operates and we know that input equals to output in case of D flip flop. It stores the value on the data LINE.

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For D flip-flop to JK flip-flop, the characteristics equation is given by ___________(a) D=JQ(p)’+Q(p)K’(b) D=JQ(p)’+KQ(p)’(c) D=JQ(p)+Q(p)K’(d) D=J’Q(p)+Q(p)KI got this question in quiz.This interesting question is from Realisation of one Flip-flop using other Flip-flops topic in portion Flip-Flops of Digital Circuits
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