setup time and hold time
@sachinmaheshwari
Setup time is the time for the input signal to get loaded in to the latch, before latch gets trigerred by the active clock edge.. so that the signal can be samled properly.
Hold time is the duration for which the latch looks at the input after the active clock edge, so that it can get sampled properly... any signal change after the hold time won't be available to the output until the next clock edge.. so, signal can change after the hold time...
Hope this helps....