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Home Digital Electronics Integrated-Circuit Logic Families Comments

  • Question
  • 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.

  • Correct Answer
  • represent MOSFET devices utilizing either P-channel or N-channel devices exclusively within a given gate 


  • Integrated-Circuit Logic Families problems


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    • 1. 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
    • 2. Fan-out for a typical TTL gate is ________.

    • Options
    • A. 100
    • B. 54
    • C. 10
    • D. 4
    • Discuss
    • 3. 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
    • 4. 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
    • Discuss
    • 5. The output stage of a TTL gate is a special design called ________.

    • Options
    • A. multiemitter
    • B. totem-pole
    • C. MSI
    • D. DIP
    • Discuss
    • 6. 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
    • 7. ________ is about twice as fast as P-MOS.

    • Options
    • A. CMOS
    • B. DMOS
    • C. MOD
    • D. N-MOS
    • Discuss
    • 8. Propagation delay is important because ________.

    • Options
    • A. the logic gates must be given a short break during each clock cycle or else they will overheat
    • B. it limits the maximum operating frequency of a gate
    • C. it is a measure of how long the clock must be applied to the gate before it will make the required decision
    • D. all the gates in a system must have the same propagation times in order to be compatible
    • Discuss
    • 9. A ________ is a testing and troubleshooting tool that generates a short-duration pulse when manually activated, usually by depressing a push button.

    • Options
    • A. cattle prod
    • B. jimmy rod
    • C. logic pulser
    • D. bilateral switch
    • Discuss
    • 10. In the frequency counter, the pulse width of the enable signal is very critical for taking an accurate frequency measurement.

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


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