Data Arrival time and Data required time

 Data Arrival Time:

• Time taken by the signal to propagate from clock definition point  to the D pin of the capturing flop is called as data arrival time
• DAT = Tlaunch + Tcq+Tcombo+net delays

Data required time:

• Data required time is the time taken by the signal from clock definition point to the clock pin of the capturing flop is called as the data required time
• DRT = Tclk +Tcapture +clock logic Delay -Tsetup -Tuncrtainty+clock net delay for setup time analysis