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Home ‣ Digital Electronics ‣ Counters See What Others Are Saying!
  • Question

  • ________ is the output frequency of the counter shown below.

    ________ is the output frequency of the counter shown below. 4 MHz 20 kHz 210.5 kHz 800 Hz


  • Options
  • A. 4 MHz
  • B. 20 kHz
  • C. 210.5 kHz
  • D. 800 Hz

  • Correct Answer
  • 20 kHz 

    • More questions

    • 1. The Boolean expression for the logic circuit shown is _____.


    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 2. In the VHDL code of the stepper motor, the cout outputs are bit_vector type because they are binary bit patterns.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. The term race condition describes the time that an active signal must be present at the input to a flip-flop before an active clock edge is applied.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. A method for the automated testing of printed circuit boards is called a(n) ________.

    • Options
    • A. bed-of-nails
    • B. LUT
    • C. CLB
    • D. CPLD
      • Discuss
    • 5. Which of the following logic families has the shortest propagation delay?

    • Options
    • A. CMOS
    • B. BiCMOS
    • C. ECL
    • D. 74SXX
      • Discuss
    • 6. What is the input/output pin configuration of the GAL22V10?

    • Options
    • A. 10 output pins and 12 input pins
    • B. 2 special-purpose pins
    • C. 8 pins that are either inputs or outputs
    • D. All of the above
      • Discuss
    • 7. List the state of each output pin of a 7447 if RBI = 0, LT = 1, A0 = 1, A1 = 0, A2 = 0, and A3 = 1.

    • Options
    • A. RBO = 0, a = 0, b = 0, c = 0, d = 1, e = 1, f = 0, g = 0
    • B. RBO = 1, a = 0, b = 0, c = 0, d = 1, e = 1, f = 0, g = 0
    • C. RBO = 0, a = 0, b = 0, c = 0, d = 0, e = 1, f = 0, g = 0
    • D. RBO = 1, a = 0, b = 0, c = 0, d = 0, e = 1, f = 0, g = 0
      • Discuss
    • 8. Which statement below best describes the function of a decoder?

    • Options
    • A. A decoder will convert a decimal number into the proper binary equivalent.
    • B. A decoder will convert a binary number into a specific output representing a particular character or digit.
    • C. Decoders are used to prevent improper operation of digital systems.
    • D. Decoders are special ICs that are used to make it possible for one brand of computer to talk to another.
      • Discuss
    • 9. Convert the following SOP expression to an equivalent POS expression.

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 10. What is the difference between the 74HC00 series and the 74HCT00 series of CMOS logic?

    • Options
    • A. The HCT series is faster.
    • B. The HCT series is slower.
    • C. The HCT series is input and output voltage compatible with TTL.
    • D. The HCT series is not input and output voltage compatible with TTL.
      • Discuss

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