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Home ‣ Digital Electronics ‣ Integrated-Circuit Logic Families Comments
  • Question

  • The major advantage of CMOS logic circuits over TTL is very low power consumption.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • True 

    • Integrated-Circuit Logic Families problems

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    • 1. An unused input of a NAND gate can be left unconnected, pulled high by a pull-up resistor and tied together with another input and not change the logic output.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. A current-sourcing transistor may also be referred to as a pull-down transistor.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. The noise immunity of a logic circuit refers to the circuit's ability to tolerate noise by causing spurious charges in the output voltage.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. Integrated injection logic offers high component density and is easier to fabricate than TTL.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. A major drawback in using ECL logic circuits in conjunction with TTL and MOS circuits is its negative supply voltages and logic levels.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. The abbreviated designator for a HIGH input voltage is VIH.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. CMOS stands for "complementary metal-oxide semiconductors" and the FETs are normally enhancement mode devices.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. The TTL HIGH level source current is higher than the LOW level sinking current.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. Usually P-MOS and N-MOS circuits are identical with the exception of the voltage polarities.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. The time it takes for a square wave to go from 10% to 90% of its voltage level is called propagation delay.

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

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