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Home ‣ Digital Electronics ‣ Logic Families and Their Characteristics See What Others Are Saying!
  • Question

  • A TTL totem-pole circuit is designed so that the output transistors:


  • Options
  • A. are always on together
  • B. provide linear phase splitting
  • C. provide voltage regulation
  • D. are never on together

  • Correct Answer
  • are never on together 

    • More questions

    • 1. From the truth table for a three-input NOR gate, what is the only condition of inputs A, B, and C that will make the output X high?

    • Options
    • A. A = 1, B = 1, C = 1
    • B. A = 1, B = 0, C = 0
    • C. A = 0, B = 0, C = 1
    • D. A = 0, B = 0, C = 0
      • Discuss
    • 2. The floating-gate MOSFET is the actual storage element for EEPROMs. An electron charge will remain on the floating gate for more than 10 years unless drained off electrically.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. The 8-input XOR circuit shown has an output of Y = 1. Which input combination below (ordered A ? H) is correct?


    • Options
    • A. 10111100
    • B. 10111000
    • C. 11100111
    • D. 00011101
      • Discuss
    • 4. The K-map in the figure below shows the correct implementation of the expression X = ACD + AB(CD + BC).


    • Options
    • A. True
    • B. False
      • Discuss
    • 5. A DIMM ________.

    • Options
    • A. is available in 30-pin or 72-pin packages
    • B. has contact pins on only one side of the module
    • C. has less memory than the newer SIMM modules
    • D. has contact pins on both sides of the module for larger data paths
      • Discuss
    • 6. To operate correctly, starting a ring counter requires:

    • Options
    • A. clearing one flip-flop and presetting all the others.
    • B. clearing all the flip-flops.
    • C. presetting one flip-flop and clearing all the others.
    • D. presetting all the flip-flops.
      • Discuss
    • 7. What is another name for a one-shot?

    • Options
    • A. Monostable
    • B. Multivibrator
    • C. Bistable
    • D. Astable
      • Discuss
    • 8. The logic expression for a NOR gate is ________.

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 9. The NAND or NOR gates are referred to as "universal" gates because either:

    • Options
    • A. can be found in almost all digital circuits
    • B. can be used to build all the other types of gates
    • C. are used in all countries of the world
    • D. were the first gates to be integrated
      • Discuss
    • 10. For the SOP expression , how many 0s are in the truth table's output column?

    • Options
    • A. zero
    • B. 1
    • C. 4
    • D. 5
      • Discuss

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