How does master slave flip flop overcome race around condition?

This problem is called race around condition in J-K flip-flop. This problem (Race Around Condition) can be avoided by ensuring that the clock input is at logic “1” only for a very short time. This introduced the concept of Master Slave JK flip flop.

How do you avoid race around condition in flip-flops?

Steps to avoid racing condition in JK Flip flop:

1. If the Clock On or High time is less than the propagation delay of the flip flop then racing can be avoided. This is done by using edge triggering rather than level triggering.
2. If the flip flop is made to toggle over one clock period then racing can be avoided.

Which flip flop is free from race around problem?

Explanation: T flip-flop is free from the race around condition because its output depends only on the input; hence there is no any problem creates as like toggle.

Why do we use master slave flip flop?

A D flip flop takes only a single input, the D (data) input. The master-slave configuration has the advantage of being edge-triggered, making it easier to use in larger circuits, since the inputs to a flip-flop often depend on the state of its output. The circuit consists of two D flip-flops connected together.

How do you overcome race around condition?

If the clock on or high time is less than the propagation delay of the flip flop then racing can be avoided. This is done by using edge triggering rather than level triggering. If the flip flop is made to toggle over one clock period then racing can be avoided.

What is race around condition how it is resolved?

Answer: When the input to the JK flip-flop is j=1 and k=1, the race around condition occurs, i.e it occurs when the time period of the clock pulse is greater than the propagation delay of the flip flop. so the output changes or toggles in a single clock period.

How can race conditions be eliminated?

It can be eliminated by using no more than two levels of gating. An essential race condition occurs when an input has two transitions in less than the total feedback propagation time. Sometimes they are cured using inductive delay line elements to effectively increase the time duration of an input signal.

What is race around condition how race around can be eliminated?

Race around condition can be eliminated using the master-slave flip-flop. Master-Slave flip-flop is the cascaded combination of two flip-flops among which the first is designated as master flip-flop while the next is called slave flip-flop.

What is the race around the problem how you resolve it?

What is race around condition in JK flip flop How is it overcome?

For J-K flip-flop, if J=K=1, and if clk=1 for a long period of time, then output Q will toggle as long as CLK remains high which makes the output unstable or uncertain. This is called a race around condition in J-K flip-flop. We can overcome this problem by making the clock =1 for very less duration.

How can race be eliminated?

Toggling of the output more than once during the same clock pulse is called race around condition. It can be eliminated using an RC network (edge triggering) at the clock input or by using Master-slave JK flip flop.

What is a master-slave D flip flop?

A D flip flop takes only a single input, the D (data) input. The master-slave configuration has the advantage of being edge-triggered, making it easier to use in larger circuits, since the inputs to a flip-flop often depend on the state of its output. The circuit consists of two D flip-flops connected together.

What is the race round condition in JK flip-flop?

This problem is referred to as a race-round condition in JK flip-flop and avoided by ensuring that the CLK set to 1 only for a very short time. The master-slave flip flop is constructed by combining two JK flip flops.

How to avoid race around condition in flip flops?

1 Race around condition exists when tp ≥ Δt. Thus, by keeping tp < Δt, we can avoid race around condition. 2 Use of edge triggering in flip flops. 3 By using a master-slave flip-flop.

Why is the master-slave J-K flip flop a synchronous device?

Toggling takes place during the whole process since the output is changing once in a cycle. This makes the Master-Slave J-K flip flop a Synchronous device as it only passes data with the timing of the clock signal. Attention reader! Don’t stop learning now.