* TOPICS DETAILS :-
[1] Type of binary counter :-
(i) Synchronous
(ii) Asynchronous
[2] 2-bit binary counter :-
(i) Number of flip flop
(ii) Excitation table
(iii) State diagram
(iv) Circuit excitation table
(v) K-map
(vi) Circuit for binary counter
→ [1] Type of binary counter :-
[1] SYNCHRONOUS
[2] ASYNCHRONOUS
[1] SYNCHRONOUS :-
If the flip-flops do not receive the same clock signal, then that counter is called as Asynchronous counter. The output of system clock is applied as clock signal only to first flip-flop. The remaining flip-flops receive the clock signal from output of its previous stage flip-flop. Hence, the outputs of all flip-flops do not change (affect) at the same time.
[2] ASYNCHRONOUS :-
If all the flip-flops receive the same clock signal, then that counter is called as Synchronous counter. Hence, the outputs of all flip-flops change (affect) at the same time.
→ [2] 2-bits binary counter :-
There are 2 flip flop needed for 2-bit binary counter.
→ (ii) EXITATION TABLE :-
Exitation table of J.K. flip flop
[iii] state diagram :-
[iv] Circuit excitation table :-
[v] K-map :-
[vi] Binary counter diagram :-
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