Flip-flop Conversion – T flip-flop to JK flip-flop

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Here you will see how to implement a JK flip-flop from T Flip Flop step by step - "Flip-flop Conversion – T flip-flop to JK flip-flop".

Flip-flop Conversion – T flip-flop to JK flip-flop


Step 1: Write the truth table of the desired flip-flop

Here the desired flip-flop is JK flip-flop

Hence you need to write the truth table of JK flip-flop which is

J

K

QN

QN+1

0

0

0

0

0

0

1

1

0

1

0

0

0

1

1

0

1

0

0

1

1

0

1

1

1

1

0

1

1

1

1

0


Step 2: Write the excitation table of the given flip-flop

In this case the given flip-flop is T flip-flop

Therefore you need to write the excitation table of T flip-flop which is

QN

QN+1

T

0

0

0

0

1

1

1

0

1

1

1

0


Step 3: Write the conversion table

The conversion table, which is a combination of truth table and excitation table, to implement a JK flip-flop from T flip-flop is as follows

J

K

QN

QN+1

T

0

0

0

0

0

0

0

1

1

0

0

1

0

0

0

0

1

1

0

1

1

0

0

1

1

1

0

1

1

0

1

1

0

1

1

1

1

1

0

1


Step 4: Find the Boolean expressions for the inputs of the given flip-flop.

In this case the given flip-flop is T.

Therefore, write the Boolean expression for T from the conversion table using K-Maps.

K-Map for T:

Flip flop Conversion – T flip-flop to JK flip-flop

Expression for T would be

T = KQN + JQN/

 

Step 5: Draw the circuit for implementing JK flip-flop from T flip-flop

Flip flop Conversion – T flip-flop to JK flip-flop



In this way a JK flip-flop can be implemented using a T flip-flop. Hope this post on “Flip-flop Conversion – T flip-flop to JK flip-flop” would help in clearing many doubts in flip-flop conversions.



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