Electronics - Standard Logic Devices (SLD)

Exercise :: Standard Logic Devices (SLD) - General Questions

6. 

The problem of interfacing IC logic families that have different supply voltages (VCCs) can be solved by using a:

A. level-shifter
B. tri-state shifter
C. translator
D. level-shifter or translator

Answer: Option D

Explanation:

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7. 

Ten TTL loads per TTL driver is known as:

A. noise immunity
B. power dissipation
C. fanout
D. propagation delay

Answer: Option C

Explanation:

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8. 

Which of the following summarizes the important features of emitter-coupled logic (ECL)?

A. negative voltage operation, high speed, and high power consumption
B. good noise immunity, negative logic, high frequency capability, low power dissipation, and short propagation time
C. slow propagation time, high frequency response, low power consumption, and high output voltage swings
D. poor noise immunity, positive supply voltage operation, good low-frequency operation, and low power

Answer: Option A

Explanation:

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9. 

What quantities must be compatible when interfacing two different logic families?

A. only the currents
B. both the voltages and the currents
C. only the voltages
D. both the power dissipation and the impedance

Answer: Option B

Explanation:

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10. 

CMOS logic is probably the best all-around circuitry because of its:

A. packing density
B. low power consumption
C. very high noise immunity
D. low power consumption and very high noise immunity

Answer: Option D

Explanation:

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