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Home ‣ Digital Electronics ‣ Combinational Logic Analysis Comments
  • Question

  • Assume you have A, B, C, and D available but not their complements. The minimum number of 2-input NAND gates required to implement the equation Assume you have A, B, C, and D available but not their complements. The minimum number of 2-input NA is ________.


  • Options
  • A. 3
  • B. 4
  • C. 5
  • D. 6

  • Correct Answer
  • 5 

    • Combinational Logic Analysis problems

    Search Results

    • 1. Using the universal property of a NAND gate, one or more NAND gates can be used to replace an ________.

    • Options
    • A. OR gate
    • B. AND gate
    • C. inverter
    • D. any of the above
      • Discuss
    • 2. The symbol shown represents a(n) ________.


    • Options
    • A. AND gate
    • B. OR gate
    • C. NAND gate
    • D. NOR gate
      • Discuss
    • 3. The symbol shown represents ________.


    • Options
    • A. AND-OR logic
    • B. AOI logic
    • C. XOR gate
    • D. XNOR gate
      • Discuss
    • 4. If both inputs of a 2-input NOR gate are connected, the gate will function as an ________.

    • Options
    • A. OR gate
    • B. AND gate
    • C. inverter
    • D. any of the above
      • Discuss
    • 5. Assume that you have a 3-input NAND gate but need only a 2-input gate. The unused input should be ________.

    • Options
    • A. connected to ground
    • B. left open
    • C. connected to a HIGH
    • D. any of the above
      • Discuss
    • 6. A node is defined as ________.

    • Options
    • A. a common point in a circuit
    • B. a circuit implemented as a sum-of-products
    • C. the output signals from a circuit
    • D. a shorted input
      • Discuss
    • 7. The expression can be directly implemented using only ________.

    • Options
    • A. an XOR gate
    • B. an XNOR gate
    • C. an AOI circuit
    • D. three 2-input NAND gates
      • Discuss
    • 8. The frequency of the clock waveform is defined as the reciprocal of the clock period.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. A plot of voltage versus time is called a timing diagram.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. Most modern digital systems are based on semiconductor technology.

    • Options
    • A. True
    • B. False
      • Discuss

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