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Race Around Condition

Race Around Condition . Race Around Condition . The race-around condition (Problem) occurs when both the inputs of JK-Flip-flop are 1.

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Race Around Condition

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  1. Race Around Condition

  2. Race Around Condition • The race-around condition (Problem) occurs when both the inputs of JK-Flip-flop are 1. • If the width of the clock pulse tPis too long, the state of the flip-flop will keep on changing from 0 to 1, 1 to 0 , 0 to 1 and so on, and at the end of the clock pulse, its state will be uncertain. • This phenomenon is called the rece around condition. • So in order to study race around condition, we have to clear some terms related to clock pulse. • So let’s start with clock pulse.

  3. Clock Pulse tP tPLH tPHL Now tPLH = tPHL = ∆t (Propagation delay time)

  4. Race Around Condition • The race around condition occurs if tP>> ∆t. How we can avoid race-around condition? We can avoid race around condition by the following way. 1. If tP< ∆t. 2. By using edge triggering flip-flop. 3. By using Master-Slave JK Flip-flop.

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