Sudeep Kumar Rana said:
(Tue, May 22, 2012 04:08:49 PM)
A ripple counter is something that is derived by other flip-flops. Its like a series of Flip Flops. Output of one FF becomes the input of the next. Because ripple counter is composed of FF only and no gates are there other than FF, so only propagation delay of FF will be taken into account.