Flip-Flops

Overview about Flip-Flops

FAQ’s

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     What is Flip-flops?

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      • How to use Flip flops?

•         • How to implement flip-flops using the sequential logic circuit?

•        • These are the “frequently asked questions” about flip-flops discussions.

•        • We will answer every question that is given about using flip-flops.

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Overview about flip-flops

What is Flip-flops?

•       is a BI stable device it can store single bit either 0 or 1.

•        has two output, they are complement to each other. 

•        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.  

•        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.

•        are implemented electronically, they require power and ground connections.

• How to use Flip-Flops?

               

     -  Flip flops is a clock signal. It is used to trigger (activate) the sequential logic circuits. Further it is classified as raising (positive) edge clock signal and falling (negative) edge clock signal.

           • These are the output of Q in waveform together with the clock and J K data inputs.

By looking at the table 1, we can say that in the first positive rising of the clock, the output of Q will be set to 1 in response to the J K data inputs which is J = 1 and K = 0 

Again, we have arrived to the next rising edge of the clock. By looking at the table 1, the output of the Q will be toggled.

 Next….

The output of Q becomes toggled again because data input of J and K are both 1

And so on..