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Consider the following statements: 1. Race-around condition occurs in a JK flipflop when the inputs are 1, 1 2. A flip-flop is used to store one bit of information 3. A transparent latch consists of D-type flipflops 4. Master-slave configuration is used in a flipflop to store two bits of information Which of the above statements are correct?

Consider the following statements: 1. Race-around condition occurs in a JK flipflop when the inputs are 1, 1 2. A flip-flop is used to store one bit of information 3. A transparent latch consists of D-type flipflops 4. Master-slave configuration is used in a flipflop to store two bits of information Which of the above statements are correct? Correct Answer 1, 2 and 3 only

A flip flop has two stable states which are ‘1’ and ‘0’. Corresponding to these two states there is a single bit. Hence flip flop can store 1 bit of data.

Race around condition:

For JK flip-flop if J, K, and Clock are equal to 1 the state of flip-flop keeps on toggling which leads to uncertainty in determining the output of the flip-flop. This problem is called Race around the condition.

This can be eliminated by using the following methods.

  • Increasing the delay of flip-flop
  • Use of edge-triggered flip-flop
  • Use of master-slave JK flip flop

 

The Master-slave configuration is used in a flipflop to eliminate the race around condition but not to store two bits of information.

The output of D flip flop is same as the input and hence it is used in a transparent latch. 

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