Which of the following statements is correct about D flip-flop?
2022
Which of the following statements is correct about D flip-flop?
- A.
It is obtained from RS flip-flop.
- B.
It sets the flip-flop (i.e. stores 1) by applying D = 0.
- C.
It clears the flip-flop (i.e. stores 0) by applying D = 1.
- D.
It retains the value of the flip-flop (i.e. Qt+1 = Qt ) by applying D = 0.
Attempted by 117 students.
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Correct answer: A
A D flip-flop is constructed from an SR flip-flop by adding an inverter between the S and R inputs. This ensures valid operation where D determines the next state directly rather than forcing specific set or clear actions.