Q6. What is Setup time?
[Ans] Setup time is a timing parameter associated with Sequential Devices (for simplicity henceforth I
will be only referring to the Flip Flop). The Setup time is used to meet the minimum pulse width
requirement for the first (Master) latch makes up a flip flop is. More simply, the setup time is the
amount of time that an input signal (to the device) must be stable (unchanging) before the clock ticks
in order to guarantee minimum pulse width and thus avoid possible metastability.
---------------------------------------------------------------------------------------------------------------------------
Q7. What is Hold time?
[Ans] Hold time is also a timing parameter associated with Flip Flops and all other sequential devices.
The Hold time is used to further satisfy the minimum pulse width requirement for the first (Master)
latch that makes up a flip flop. The input must not change until enough time has passed after the clock
tick to guarantee the master latch is fully disabled. More simply, hold time is the amount of time that
an input signal (to a sequential device) must be stable (unchanging) after the clock tick in order to
guarantee minimum pulse width and thus avoid possible metastability.
---------------------------------------------------------------------------------------------------------------------------