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

  • The data transmission system shown in below has a problem; the parity error output is always high. A logic analyzer is used to examine the system and shows that the DATA IN on the left matches the DATA OUT on right. What might be causing the problem?

    The data transmission system shown in below has a problem; the parity error output is always high. A


  • Options
  • A. The error gate could be defective.
  • B. The storage circuit could be defective.
  • C. The parity checker could be bad.
  • D. Any of the above.

  • Correct Answer
  • Any of the above. 

    • More questions

    • 1. A logic circuit that provides a HIGH output if one input or the other input, but not both, is HIGH, is a(n):

    • Options
    • A. Ex-NOR gate
    • B. OR gate
    • C. Ex-OR gate
    • D. NAND gate
      • Discuss
    • 2. Schottky logic overcomes the saturation and stored charge problem by placing a Schottky diode across the base-to-collector junction.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. Is the circuit given below an astable multivibrator or a monostable multivibrator?


    • Options
    • A. monostable
    • B. astable
      • Discuss
    • 4. What is another name for a bistable multivibrator?

    • Options
    • A. an on-off switch
    • B. an oscillator
    • C. a flip-flop
      • Discuss
    • 5. Which of the following gates has the exact inverse output of the OR gate for all possible input combinations?

    • Options
    • A. NOR
    • B. NOT
    • C. NAND
    • D. AND
      • Discuss
    • 6. The noise margin for TTL is 0.8 V.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. The storage capacity of a register makes it an important type of memory.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. A DAC is ________ if its output increases as the binary input increments from one value to the next.

    • Options
    • A. monotonic
    • B. self adjusting
    • C. accurate
    • D. broken
      • Discuss
    • 9. An astable 555 timer has the following number of stable states:

    • Options
    • A. 0
    • B. 1
    • C. 2
    • D. 3
      • Discuss
    • 10. Two characteristics of ideal operational amplifiers are very high input impedance and very high voltage gain.

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

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