what is the max switching frequency?

[stevenlee]

what is the max switching frequency, or 1/(trise+tfall) or 1/(tprise+tpfall)?

 

[wwfhm2002]

maybe 1/(setupmin + delaymin) where setupmin is the minimal setup time of register and delaymin is minimal clock to Q time of register.

 

[au_sun]

the Max switching frequency of a circuit is decided by the below equation,

tclk-Q + tp,comb + tsetup = T

Frequency = 1/T

 

[satya_422]

Max swithing frequency is the total T but setup time only depends on max frequency.

Satya..

 

[imad694]

Max Freq = 1/T
where

T = setup time +hold time +(greater of combinatorial delay and clock-to-Q delay)

see for a definition of setup and hold times.

 

[roykyn]

1/(trise+tfall)......1/(Ton+Toff)....