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Flip-Flop

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alphacat

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I need a device that should have two inputs - EN, IN - and two outputs - OUT1, OUT2.
It should behave according to the following requirements:
untitled-png.38675


I believe that I need a Flip-Flop, is that right?

Perhaps you could give me an example for such device and spec that i should pay attention to so i could smartly purchase such device?

Thank you.
 

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Here is the chip that provides the outputs as required by the Truth Table above:

**broken link removed**
This chip does not need a clock. The outputs respond within 10uS.
 
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I need a device that should have two inputs - EN, IN - and two outputs - OUT1, OUT2.
It should behave according to the following requirements:
untitled-png.38675


I believe that I need a Flip-Flop, is that right?

Perhaps you could give me an example for such device and spec that i should pay attention to so i could smartly purchase such device?

Thank you.

A flipflop needs a clock.
 
From the truth table, it's not a flip flop - unless the table is incomplete. I guess you could call it a gatable buffer with complementary output. I don't know of any ICs that have that function off the top of my head.

Here is the chip that provides the outputs as required by the Truth Table above:

**broken link removed**
This chip does not need a clock. The outputs respond within 10uS.
What is a TE555?

A flipflop needs a clock.
Except RS FF.
 
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Thanks guys.
If its not a Flip-Flop, then how is such device called so i could find it in Mouser, Digikey and such.
Here is the chip that provides the outputs as required by the Truth Table above:

**broken link removed**
This chip does not need a clock. The outputs respond within 10uS.
Colin, could you please post a link to TE555's datasheet?
I cant seem to find it.

Thank you.
 
Thanks guys.
If its not a Flip-Flop, then how is such device called so i could find it in Mouser, Digikey and such.
Colin, could you please post a link to TE555's datasheet?
I cant seem to find it.

Thank you.

There might be a more simple method but I think this will work.

logic_circuit_1-png.38678
 

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@Vne
Its actually the exact implementation of the truth table i posted, so its great.

@Eric
Its just the IC i was looking for.
Is it possible to find such IC in a smaller package?
Since I only need only 4 pins after all (2 inputs and two outputs), as drawn by Vne.
 
hi vne,
This is your circuit in a LTS sim.:)

View attachment 38680

Thanks for verifying.

@Vne
Its actually the exact implementation of the truth table i posted, so its great.

@Eric
Its just the IC i was looking for.
Is it possible to find such IC in a smaller package?
Since I only need only 4 pins after all (2 inputs and two outputs), as drawn by Vne.

Alpha,

Are you opposed to using a micro-controller? A small 8 pin PIC could easily do this.
 
Alpha,

Are you opposed to using a micro-controller? A small 8 pin PIC could easily do this.
There have been a lot of overkill applications posted for a micro-controller but suggesting that it be used to perform a 2 input static logic function is the biggest overkill I've seen so far.

Congratulations.:rolleyes:
 
There have been a lot of overkill applications posted for a micro-controller but suggesting that it be used to perform a 2 input static logic function is the biggest overkill I've seen so far.

Congratulations.:rolleyes:

Sheesh. :rolleyes: I'll agree that a PIC can do MUCH more than what he needs but what's the difference between using an 8 pin 60 cent PIC over a 16 pin 40 cent logic IC? Unless he's making hundreds of these things, there isn't one in my opinion.

He expressed a desire for something in a smaller package and the PIC is one answer. I don't understand this urge to use a micro-controller only when it's absolutely necessary. It's so cheap, small, and easy to program...who cares!?! And I also did offer a logic IC solution first albeit not nearly as neat as Eric's answer.

Alpha, there is nothing wrong with using a PIC for this if you know how to and are so inclined. Good luck with your project.
 
Firstly a micro costs 33 cents.
Secondly, it will replace 3 chips
Thirdly, it will prevent a lot of others from trying to copy a design.
and fourthly, it will allow you to charge a higher fee for your design.
I have been cheated so many times by customers.
They request a design on the understanding that a payment will be determined over the lifetime of the product. They then go and copy the design and pay practically nothing.
I have found a micro stops them in their tracks.
There has never been a case where a micro has not been the best choice to prevent industrial theft.
However in this case, 3 simple IC's is best for a single application.
 
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Hi,
That's actually an incorrect statement.

Depends how you want to use it.
eg You can flip flop it manually using push buttons.

Mike's statement is totally correct. When you trigger a F/F with a switch, you connect the switch to the clock input.
 
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No, you are messing up the word 'correct' with 'BS'.

There are a bunch of different types of FF, including RS, D, T, JK.
 
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