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Home ‣ Digital Electronics ‣ MSI Logic Circuits See What Others Are Saying!
  • Question

  • Which statement best describes the given figure, and what is the function of the terminal labeled EN?

    Which statement best describes the given figure, and what is the function of the terminal labeled EN


  • Options
  • A. Quad two-input multiplexer. EN is the enable input, which requires an active LOW for the device to work.
  • B. Quad two-bit multiplier, EN is the active HIGH trigger.
  • C. Dual quad-input multiplexer, which requires an active LOW on the EN terminal for the device to work.
  • D. Quad two-input AND gate, which requires an active LOW on the EN input to enable all the gates.

  • Correct Answer
  • Quad two-input multiplexer. EN is the enable input, which requires an active LOW for the device to work. 

    • More questions

    • 1. Several manufacturers have developed logic that combines the best features of TTL and CMOS. This is called ________.

    • Options
    • A. 12L
    • B. BiCMOS
    • C. 74ACT
    • D. 74HCT
      • Discuss
    • 2. Which of the examples below expresses the distributive law?

    • Options
    • A. (A + B) + C = A + (B + C)
    • B. A(B + C) = AB + AC
    • C. A + (B + C) = AB + AC
    • D. A(BC) = (AB) + C
      • Discuss
    • 3. A flip-flop is in the CLEAR condition when .

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. The duty cycle of the most significant bit from a 4-bit (0?9) BCD counter is ________.

    • Options
    • A. 10%
    • B. 20%
    • C. 50%
    • D. 80%
      • Discuss
    • 5. One example of the use of an S-R flip-flop is as a(n):

    • Options
    • A. racer
    • B. astable oscillator
    • C. binary storage register
    • D. transition pulse generator
      • Discuss
    • 6. Packages are used to contain ________ and other information that must be available to all entities in the design file.

    • Options
    • A. types
    • B. vectors
    • C. components
    • D. variables
      • Discuss
    • 7. A method of converting decimal to binary is by successive division.

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

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. Convert 11001010001101012 to hexadecimal.

    • Options
    • A. 121035
    • B. CA35
    • C. 53AC1
    • D. 530121
      • Discuss
    • 10. There are four possible combinations for subtracting two binary numbers.

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

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