Electrical – Temperature and Voltage variation affects on Metastability


Are there any effects of temperature and voltage variations on Metastability of the flip-flop? If Yes, What are the effects?

Best Answer

Yes, of course. Changes in supply voltage and operating temperature will change the propagation delay of all logic gates. Changes in delay will lead to changes in the setup and hold time of the flip-flop, which will in turn change the probability of metastability. All other things being the same, we would expect metastability to become more probable at higher temperature and lower supply voltage.