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Design synchronous counter using T-type flip flops for getting the following sequence:

Mumbai University > Electronics and Telecommunication Engineering > Sem 3 > Digital Electronics

Marks: 10M

Year: May 2016

0 - 2 - 4 - 6 - 0. Take care of lockout condition.

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Step1: Draw the state diagram:

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Step2: Number of flip flops:

Since the highest state is 6 i.e. 011 we have to use three T flip flops.

Step3: Write the excitation table:

Table1 shows the excitation table for T flip flop.

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Table2 shows the circuit excitation table.

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Step4: K maps and simplifications:

K maps for T_c, T_B and T_Aand their simplified expression are given below

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Step5: Logic diagram

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