SR Flip Flops

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How a SR Flip Flops Works?

In digital circuits, a flip-flop is a term referring to an electronic circuit (a bistable multivibrator) that has two stable states and thereby is capable of serving as one bit of memory. Today, the term flip-flop has come to mostly denote non-transparent (clocked or edge-triggered) devices, while the simpler transparent ones are often referred to as latches; however, as this distinction is quite new, the two words are sometimes used interchangeably.

A flip-flop is usually controlled by one or two control signals and/or a gate or clock signal. The output often includes the complement as well as the normal output. As flip-flops are implemented electronically, they require power and ground connections.

NOR SR (Set Reset) Flip Flop Logic Diagram
S	R	Q	Q'
1	0	1	0
0	0	1	0	( After S=1 R=0 )
0	1	0	1
0	0	0	1	( After S=0 R=1 )
1	1	0	0

NAND SR (Set Reset) Flip Flop Logic Diagram
S	R	Q	Q'
1	0	0	1
1	1	0	1	( After S=1 R=0 )
0	1	1	0
1	1	1	0	( After S=0 R=1 )
0	0	1	1

Lovin

16 Dec 2012

very helpful,,
thanks a lot

Lovin it

17 Dec 2012

This little program helps so much understand the flip flops!!! m:)

william

26 Dec 2012

I'd like to thank you sir for these efforts to easy the understanding of this concept !! thanks a lot.

vbabey

30 Dec 2012

This is great ...Thank you very much for this and youtube video...thanks again

blabla

07 Jan 2013

This is very helpful!!!

REVATHI G

30 Jan 2013

its very useful

amour lesangwa

01 Feb 2013

goooooooooooooooooooood work

pubudu

13 Feb 2013

thanks, very very useful.

piyush

20 Feb 2013

thank you so much ! :)

Sue

06 Mar 2013

Love the simulation! It should be noted however, that this is not a flip flop. Flip flops have a clock signal as to when they are allowed to change. This is a SR latch.

nazri khir

07 Mar 2013

good one's :)

Ariba Niazi

15 Mar 2013

most helpfull topic guys.......

Ariba Niazi

15 Mar 2013

gooooood n hlpfull

vivekanand patel

03 Apr 2013

yhank you so...............much

veeru

04 Apr 2013

Thank you very much for this flip flop sr diagram i am understanding very much of this diagram

janani

05 Apr 2013

really usefull thanks alot...........

Sridhar

27 Apr 2013

Thank u so much for rembering logic by this page. Thanks alot.....

Danig Schonweiss

29 Apr 2013

Thank you Mr

This was so much fun. It was difficult and easy. Now I understand, but I am confused.

Help me now?

Danig

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