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Digital Electronics
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Logic Families and Their Characteristics
Comments
Question
In TTL the noise margin is between 0.8 V and 0.4 V.
Options
A. True
B. False
Correct Answer
True
Logic Families and Their Characteristics problems
Search Results
1. A pulse is not perfectly square; it takes time for the digital level to rise from 0 up to 1 and to fall from 1 down to 0.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
2. Propagation delay in TTL is due to slow switching speeds.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: False
3. The AND is the simplest of the gates, requiring the least amount of circuitry to implement in TTL.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: False
4. Interfacing (74HCMOS to 74ALSTTl or 74TTL to 74LSTTL) can be done with no danger.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: False
5. An Altera FLEX10K device uses a(n) ________ architecture.
Options
A. OR array
B. AND array
C. OR and AND array
D. look-up table
Show Answer
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Discuss
Correct Answer: look-up table
6. PMOS and NMOS are commonly used for small memories and microprocessors.
Options
A. True
B. False
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Discuss
Correct Answer: False
7. In ECL, the HIGH and LOW levels are determined by which transistor in a differential amplifier is conducting more.
Options
A. True
B. False
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Discuss
Correct Answer: True
8. The basic part numbers of ICs are the same regardless of the manufacturer because digital logic ICs have been standardized.
Options
A. True
B. False
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Discuss
Correct Answer: True
9. Schottky logic overcomes the saturation and stored charge problem by placing a Schottky diode across the base-to-collector junction.
Options
A. True
B. False
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Discuss
Correct Answer: True
10. A typical fan-out for most TTL is 9.
Options
A. True
B. False
Show Answer
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Correct Answer: False
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