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Home Digital Electronics Flip-Flops See What Others Are Saying!
  • Question
  • An invalid condition in the operation of an active-HIGH input S-R latch occurs when ________.


  • Options
  • A. HIGHs are applied simultaneously to both inputs S and R
  • B. LOWs are applied simultaneously to both inputs S and R
  • C. a LOW is applied to the S input while a HIGH is applied to the R input
  • D. a HIGH is applied to the S input while a LOW is applied to the R input

  • Correct Answer
  • HIGHs are applied simultaneously to both inputs S and R 


  • More questions

    • 1. An ADC is an analog-to-digital converter.

    • Options
    • A. True
    • B. False
    • Discuss
    • 2. An inverter performs a NOT operation.

    • Options
    • A. True
    • B. False
    • Discuss
    • 3. Antifuse devices are volatile.

    • Options
    • A. True
    • B. False
    • Discuss
    • 4. Address multiplexing is used to reduce the number of address lines.

    • Options
    • A. True
    • B. False
    • Discuss
    • 5. Which type of ROM has to be custom built by the factory?

    • Options
    • A. ROM
    • B. mask ROM
    • C. EPROM
    • D. EEPROM
    • Discuss
    • 6. The RST pin requires a HIGH to reset the 8051 microcontroller.

    • Options
    • A. True
    • B. False
    • Discuss
    • 7. How many clock pulses will be required to completely load serially a 5-bit shift register?

    • Options
    • A. 2
    • B. 3
    • C. 4
    • D. 5
    • Discuss
    • 8. A data selector is also called a demultiplexer.

    • Options
    • A. True
    • B. False
    • Discuss
    • 9. The ________ statement evaluates the variable status.

    • Options
    • A. IF/THEN
    • B. IF/THEN/ELSE
    • C. CASE
    • D. ELSIF
    • Discuss
    • 10. A NAND gate output is LOW only if all the inputs are HIGH.

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


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