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Digital Electronics - Flip-Flops

Exercise : Flip-Flops - General Questions
41.
What is the significance of the J and K terminals on the J-K flip-flop?
There is no known significance in their designations.
The J represents "jump," which is how the Q output reacts whenever the clock goes high and the J input is also HIGH.
The letters were chosen in honor of Jack Kilby, the inventory of the integrated circuit.
All of the other letters of the alphabet are already in use.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
Why are the S and R inputs of a gated flip-flop said to be synchronous?
They must occur with the gate.
They occur independent of the gate.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
Gated S-R flip-flops are called asynchronous because the output responds immediately to input changes.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
Which of the following is not generally associated with flip-flops?
Hold time
Propagation delay time
Interval time
Set up time
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
An RC circuit used in a 74122 retriggerable one-shot has an REXT of 100 k and a CEXT of 0.005 F. The pulse width is ________.
70 s
16 s
160 s
32 s
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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