Digital Electronics - Flip-Flops - Discussion
Discussion Forum : Flip-Flops - General Questions (Q.No. 46)
46.
Edge-triggered flip-flops must have:
Discussion:
9 comments Page 1 of 1.
Vijay said:
1 decade ago
Edge triggered flip flops may also be a negative edge triggered flipflop.
Krishna said:
1 decade ago
Can you explain me difference between the positive edge-detection circuits and negative edge- detection circuits. ?
Sai said:
1 decade ago
Why only positive edge triggered?
Nikhil said:
1 decade ago
@Krishna.
Positive edge detection: Action takes place at low to high transition edge.
Negative edge detection: Action takes place at high to low transition edge.
Positive edge detection: Action takes place at low to high transition edge.
Negative edge detection: Action takes place at high to low transition edge.
Chinna said:
1 decade ago
1) Positive Edge-triggered flip-flops it must detect the low to high transition edge.
2) Negative Edge-triggered flip-flops it must detect high to low transition edge may be question Positive Edge-triggered ff.
2) Negative Edge-triggered flip-flops it must detect high to low transition edge may be question Positive Edge-triggered ff.
Menna said:
1 decade ago
Why only positive ? whats wrong with negative ?
Abhishek said:
1 decade ago
I think a triangle in the ff means positive edge trigger so for negative edge there is a triangle + a bubble It means that for edge trigger there must be a triangle which means there is, +ve edge trigger is necessary.
(1)
Preyksha said:
1 decade ago
The choice should have been edge transition detection circuit.
S.manikanda said:
3 years ago
The right answer is at least two inputs to handle rising and falling edges.
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