VLSI Design MCQ Questions and Answers Quiz

51. The maximum current for a LOW output on a standard TTL gate is

  1. 16 µA.
  2. 40 mA.
  3. 100 µA.
  4. 16 mA.

52. The maximum input voltage recognized as a LOW by a TTL gate is

  1. 2.4 V.
  2. 0.8 V.
  3. 0.0 V.
  4. 0.4 V.

53. The maximum output voltage recognized as a LOW by a TTL gate is

  1. 2.0 V.
  2. 0.8 V.
  3. 2.4 V.
  4. 0.4 V. 3

54. The minimum input voltage recognized as a HIGH by a TTL gate is

  1. 0.8 V.
  2. 2.4 V.
  3. 2.0 V.
  4. 5.0 V.

55. The minimum output voltage recognized as a HIGH by a TTL gate is

  1. 0.8 V.
  2. 2.4 V.
  3. 5.0 V.
  4. 2.0 V.

56. The noise margin for a standard TTL gate is

  1. 1.0 V.
  2. 0.4 V.
  3. 1.4 V.
  4. 0.8 V.

57. The number of gates that can be connected to a single output without exceeding the current ratings of the gate is called

  1. dissipation.
  2. propagation.
  3. fan-out.
  4. SSI.

58. The original CMOS line of circuits is the

  1. 5400 series.
  2. 4000 series.
  3. 74C00 series.
  4. 74HCOO series.

59. The output current capability for a HIGH output condition is called a(n)

  1. source current.
  2. exit current.
  3. sink current.
  4. fan-out.

60. The output current for a LOW output is called a(n)

  1. exit current.
  2. sink current.
  3. ground current.
  4. fan-out.
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