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Integrated-Circuit Logic Families problems

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

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

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

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

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

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  • A. True
  • B. False
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  • 6. 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
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  • 7. A common means for measuring and comparing the overall performance of an IC family is the speed-power product.

  • Options
  • A. True
  • B. False
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  • 8. The noise margin for TTL is 0.8 V.

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  • A. True
  • B. False
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  • 9. The data sheet for the 74 series of TTL ICs shows that Vcc has a range of 4.5 V to 5.5 V.

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  • A. True
  • B. False
    • Discuss
  • 10. The dc noise margins calculated using the proper values from a standard TTL data sheet are the worst-case margins. The typical dc noise margins are usually somewhat higher.

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  • A. True
  • B. False
    • Discuss

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