Sequential Circuits - Flip-Flops: Important Questions

Digital Principles and Computer Organization:

Chapter 5: Sequential Circuits - Flip-Flops

Important Questions

1. Define sequential logic circuit.

2. What is flip–flop?

3. Give the comparison between combinational and sequential logic circuits.

4. What is clock? State its use.

5. Explain the operation of one–bit memory cell.

6. Draw the NOR gate latch and write its truth table.

7. What is SR latch? Explain it's operation.

8. What is gated SR latch?

9. Explain the working of gated D latch with truth table and characteristic equation.

10. Explain the working of a master–slave JK flip–flop.

11. Realize a SR flip–flop using NAND gates and explain its operation.

12. Derive the characteristic equation of a SR flip–flop.

13. With reference to a JK flip–flop, what is racing?

14. Differentiate between flip–flop and latch.

15. Describe the input and output action of JK master/slave flip–flops.

16. Draw the circuit for SR flip–flop.

17. Realize SR flip–flop using NOR gates and explain its operation.

18. Draw RS flipflop circuit and explain its operation with truth table and suggest how to eliminate the undetermined stage? Write some RS flipflop applications.

19. Explain the operation of JK master slave flip–flop with suitable diagrams.

20. What is the drawback of SR flip–flop? How is this minimized?

21. Explain the working of JK flip–flop.

22. What is race around condition and how is it overcome? Explain these concepts with relevant timing diagrams.

23. Draw the clocked RS flip–flop and explain with truth table.

24. How does a JK flip–flop differ from the SR flip–flop in its basic operation?

25. Draw the logic symbol and truth table of a D flip–flop.

26. Derive the characteristic equation of a D flip flop.

27. Draw the logic circuit of a clocked JK flip–flop.

28. Draw the logic diagram of a D–FF using NAND gates and explain.

29. Mention any two differences between the edge triggering and level triggering.

30. Write down the characteristic equation and truth table for the JK flip–flop.

31. Mention the major application of master slave flip–flop.

32. Explain the different types of triggering with waveforms.

33. Draw and explain the working of clocked D flip–flop.

34. How can race condition be avoided in flip–flop ?

35. Explain the T flip–flop.

36. Explain the operation of master–slave SR flip–flop.

37. Explain the use of asynchronous inputs.

38. Draw the block diagram of SR–FF and explain.

39. Explain the operation of JK flip–flop with neat diagram.

40. Give the excitation table of SR flip–flop.

41. Give the characteristic equation and state diagram of JK flip–flop.

42. Give the excitation table for JK flip–flop.

43. Obtain the excitation table of D flip–flop.

44. Give the state diagram of JK flip–flop.

45. What is excitation table?

46. Draw state diagram of SR flip–flop.

47. Draw the truth table and excitation table of T flip–flop.

48. State the characteristics equations of various flip–flops.

49. Give the state diagram of various flip–flops.

50. Obtain the excitation table for T flip–flop.

51. Convert JK flip–flop to D flip–flop.

52. Convert D flip–flop into T flip–flop.

53. Convert JK flip–flop to T flip–flop.

54. Convert a SR flip–flop into a D flip–flop.

55. Convert a T–FF into an S–R FF. Draw the circuit.

56. How will you convert a D flip–flop into JK flip–flop ?

57. Convert SR flip–flop into JK flip–flop.

58. Convert SR flip–flop into T flip–flop.

59. Convert T flip–flop into D flip–flop.

60. Convert JK flip–flop into SR flip–flop.

61. Convert D flip–flop into SR flip–flop.

62. Realize D flip flop using SR flip flop.