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Home Digital Electronics Integrated-Circuit Logic Families Comments

  • Question
  • When VGS = 0 on an N-channel MOSFET switch, there is no ________ between the source and the drain.


  • Options
  • A. voltage drop
  • B. conductive channel
  • C. capacitance
  • D. inductance

  • Correct Answer
  • conductive channel 


  • Integrated-Circuit Logic Families problems


    Search Results


    • 1. The output stage of a TTL gate is a special design called ________.

    • Options
    • A. multiemitter
    • B. totem-pole
    • C. MSI
    • D. DIP
    • Discuss
    • 2. ________ output levels would not be a valid LOW for a TTL gate.

    • Options
    • A. 0.2 V
    • B. 0.3 V
    • C. 0.5 V
    • D. All of the above.
    • Discuss
    • 3. Several manufacturers have developed logic that combines the best features of TTL and CMOS. This is called ________.

    • Options
    • A. 12L
    • B. BiCMOS
    • C. 74ACT
    • D. 74HCT
    • Discuss
    • 4. The lower transistor of a totem-pole output is saturated when the gate output is ________.

    • Options
    • A. overdriven
    • B. HIGH
    • C. LOW
    • D. malfunctioning
    • Discuss
    • 5. A logic probe is placed on the input of a digital circuit and the probe lamp blinks slowly, indicating ________.

    • Options
    • A. that an open or bad logic level exists
    • B. a high level output
    • C. a high-frequency pulse train
    • D. that the supply voltage is low
    • Discuss
    • 6. The proliferation of small handheld consumer equipment such as digital video cameras, cellular phones, handheld computers (________), portable audio systems, and other devices has created a need for logic circuits in very small packages.

    • Options
    • A. HDLs
    • B. GDAs
    • C. PDAs
    • D. TTLs
    • Discuss
    • 7. Fan-out for a typical TTL gate is ________.

    • Options
    • A. 100
    • B. 54
    • C. 10
    • D. 4
    • Discuss
    • 8. The time it takes for an input signal to pass through internal circuitry and generate the appropriate output effect is known as ________.

    • Options
    • A. fan-out
    • B. propagation delay
    • C. rise time
    • D. fall time
    • Discuss
    • 9. P-MOS and N-MOS ________.

    • Options
    • A. represent MOSFET devices utilizing either P-channel or N-channel devices exclusively within a given gate
    • B. are enhancement-type CMOS devices used to produce a series of high-speed logic known as 74HC
    • C. represent positive and negative MOS-type devices that can be operated from differential power supplies and are compatible with operational amplifiers
    • D. None of the above are.
    • Discuss
    • 10. An open-collector TTL gate ________.

    • Options
    • A. can source current but cannot sink current
    • B. can sink current but cannot source current
    • C. cannot source or sink current
    • D. can sink more current than a standard TTL gate
    • Discuss


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