What is difference between hold time and setup? The interviewer was looking for one exact reason, and it’s really a good answer as well..The hint is hold time doesn't depend onto clock, why is this so...?
Difference between hold time and setup:
Setup violations are associated to two edges of clock, means that you can vary the clock frequency to exact setup violation.
Although for hold time, you are only concerned along with one edge and do not fundamentally depend onto clock frequency.