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  • Question

  • A(n) ________ has a number of input lines, only one of which is activated at a given time, and produces on N-bit output code, depending on which input is activated.


  • Options
  • A. encoder
  • B. code converter
  • C. demultiplexer
  • D. decoder

  • Correct Answer
  • encoder 

    • MSI Logic Circuits problems

    Search Results

    • 1. The device that places its input data onto one of several outputs is a ________.

    • Options
    • A. demultiplexer
    • B. multiplexer
    • C. comparator
    • D. counter
      • Discuss
    • 2. The binary value of the BCD number 1000 0001 (81) is ________.

    • Options
    • A. 0101 0001
    • B. 0110 0011
    • C. 0100 0001
    • D. 1000 0000
      • Discuss
    • 3. Another name for a multiplexer is ________.

    • Options
    • A. encoder
    • B. decoder
    • C. code converter
    • D. data selector
      • Discuss
    • 4. If by chance more than one of the inputs in an HDL encoder is activated at the same time, the priority encoder ________.

    • Options
    • A. enters a fault mode
    • B. ignores the least significant input
    • C. resamples the data
    • D. finds some other input
      • Discuss
    • 5. The device shown in below is a ________ and for the waveforms shown in the accompanying diagram, the ________ output at point X will be ________ and all others will be ________.


    • Options
    • A. multiplexer, D4, HIGH, LOW
    • B. demultiplexer, D3, LOW, HIGH
    • C. demultiplexer, D3, HIGH, LOW
    • D. decoder, D12, LOW, LOW
      • Discuss
    • 6. An octal-to-binary encoder has eight data inputs and encodes an output of ________ bits.

    • Options
    • A. two
    • B. three
    • C. four
    • D. five
      • Discuss
    • 7. A 75154 1-of-16 decoder has 16 outputs and decodes an input of ________ bits.

    • Options
    • A. two
    • B. three
    • C. four
    • D. six
      • Discuss
    • 8. The device that generates a coded output from a single active numeric input line is ________.

    • Options
    • A. a decoder
    • B. a multiplexer
    • C. a comparator
    • D. an encoder
      • Discuss
    • 9. A series RC circuit can be used to generate a power-up (automatic) reset signal.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. A Schmitt trigger has a positive feedback circuit and experiences a phenomenon called hysteresis.

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

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