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Digital Electronics
‣
Flip-Flops
Comments
Question
Using knowledge from previous chapters, an
S-R
flip-flop circuit is easy to design.
Options
A. True
B. False
Correct Answer
True
Flip-Flops problems
Search Results
1. The gated
S-R
flip-flop is asynchronous.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: False
2. The 7474 has two distinct types of inputs: synchronous and asynchronous.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
3. A D latch has one data-input line.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
4. The J-K flip-flop eliminates the invalid state by toggling when both inputs are high and the clock transitions.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
5. A flip-flop is in the CLEAR condition when
.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: False
6. A flip-flop's normal starting state when power is first applied to a circuit is always the SET state.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: False
7. Multivibrators must be level-triggered.
Options
A. True
B. False
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Discuss
Correct Answer: False
8. Simple gate circuits, combinational logic, and transparent
S-R
flip-flops are synchronous.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: False
9. The 555 timer can be used in either the astable or monostable modes.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
10. The
Q
output of a flip-flop is normally HIGH when the device is in the "CLEAR" or "RESET" state.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: False
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