What is the worst case propagation delay? All Questions › Category: VLSI CMOS › What is the worst case propagation delay? 0 Vote Up Vote Down chetan shidling asked 4 years ago I need short information. 1 Answers 0 Vote Up Vote Down chetan shidling answered 4 years ago The time taken by the signal from high to low or low to high is more then it is called propagation delay.