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enter image description here

Is the latch in this image a synchronous J-K latch, and is the truth table correct? Can a latch be considered a memory element that stores a state ? Are these answers good or not? If it is not a pic of J-K synchronous latch then how a J-K synchronous latch look?

Otniel-Bogdan Mercea
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  • i put a photo in the link – Otniel-Bogdan Mercea Jun 24 '16 at 12:00
  • it is better now?:)) – Otniel-Bogdan Mercea Jun 24 '16 at 12:02
  • Yes. But the text is still not very well formulated, I must say. – dim Jun 24 '16 at 12:04
  • pls respond.i want to know if that table correspond to latch jk synchronous and if that is a latch jk synchronous and if a latch is a memory element. – Otniel-Bogdan Mercea Jun 24 '16 at 12:06
  • Yeah, but I haven't used a JK flip flop since I was 16 and I don't remember how it works. So I can't answer, because I'd have to spend an entire minute on google to check this. – dim Jun 24 '16 at 12:08
  • i dont care how it works.i am interested if it is what i asked. – Otniel-Bogdan Mercea Jun 24 '16 at 12:09
  • i cant understand you.why you came here if you dont want to help? You dont help and then you want to close this in order that others will not help me? – Otniel-Bogdan Mercea Jun 24 '16 at 12:11
  • I came here to explain you how to write a better question, so you can eventually have answers. Now, myself, I don't actually *know* if it's the truth table of a JK, I don't remember how a JK works. And I don't want to check myself because at that point, it occurred to me that you could actually have done it yourself, it is just a simple google search. Do it. – dim Jun 24 '16 at 12:15
  • i did. from there i get the photo. i didnt find a site in which to say this clearly. i only get this from photos from google. and among all photos i get this. and i am not sure if it is correct – Otniel-Bogdan Mercea Jun 24 '16 at 12:16
  • if i didnt search on google how on earth i get the photo. what logic is this? i put a link.how to make more clear than that. – Otniel-Bogdan Mercea Jun 24 '16 at 12:16

2 Answers2

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Is a latch is memory elements that can store a state.

Yes, Latch can act as a memory element. in fact, latch is the simple version of flip-flop i.e, it is asynchronous, and the outputs can change as soon as the inputs do change.

Is it synchronous sequential circuit?

yes, this flip-flop is clocked sequential circuit as you are including clock signal for synchronisation.

And by the way, If you know a little about flip-flops, you can easily verify the correctness of above truth table.

Virange
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  • i needed this for an exam. those were questions and my teacher didnt gave me points for it. and i came here to clarify if i am right or the teacher. thank you . – Otniel-Bogdan Mercea Jun 24 '16 at 12:19
  • Better spend a little time on reading [this](https://en.wikipedia.org/wiki/Flip-flop_(electronics)). – Virange Jun 24 '16 at 12:22
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The image shows a J-K Flip-Flop, not a latch.

The truth table is correct for a J-K Flip-Flop or Latch.

A Latch is a memory element, yes. A Flip-Flop is not.

Jacob
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