Digital Electronics - Engineering

Q1:

A pulse train with a 1 MHz frequency is counted using a 1024 modulus ripple counter using JK flip flops. The maximum propagation delay for each flip-flop should be

A 1 μs

B 0.5 μs

C 0.2 μs

D 0.1 μs

ANS:D - 0.1 μs

Total delay = = 1 ms = 10 x delay of one flip flop. Therefore delay for one flip-flop = 0.1 ms.