# Synchronous counter design

#### rds1975

Joined Aug 30, 2004
8
Hi All

Can somebody guide me to startwith this synchrnous counter design.

The circuit diagram of a synchronous counter is shown in fig. below.
Determine the Sequence of states of the counter. Assume that the init ial state
is 000. Give your answer in tabular form, showing the present state QA(n),
QB(n) , QC(n) , J-K inputs (JA, KA, JB, KB, JC, KC) and the next state QA(n+1),
QB(n+1), QC(n+1). From the table determine the modulus of the counter.

The circuit diagram is attached herewith

Thanks and regards

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#### ayaznaqshband

Joined Jan 8, 2008
3

#### beenthere

Joined Apr 20, 2004
15,819
You could start by getting the data sheet for a 7473 J-K flip-flop and learning how they work. After that, seeing how the counter functions will be simple.

#### aanchal

Joined Jan 10, 2008
11
check out the circuit,when i solved ,found that it is not going through all stages of input.
Is it really a counter,i doubt??