Transition Delay
Transition delay or slew is defined as the time taken by signal to rise from 10 %( 20%) to the 90 %( 80%) of its maximum value. This is known as “rise time”.
Transition Delay or Slew
Similarly “fall time” can be defined as the time taken by a signal to fall from 90 %( 80%) to the 10 %( 20%) of its maximum value. Transition is the time it takes for the pin to change state.
Setting Transition Time Constraints The above theoretical definitions are to be applied on practical designs.
