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STA-max-freq Calculation

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surendraeda

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max frequency sta

Why is Hold time neglected while calculating Max Frequency?
 

Hi,

To calculate the maximum frequency of the digital circuit, you will use the following
formula.

tCLOCK = tCHQV + tPD(max) + tSETUP.

Here, in all FFs, normally tHOLD < tCHQV, means Clock to Q output delay includes the hold time. So we are not considering the hold time for calculating the max. frequency.

visit the following blog spot for more information.

https://chipverification.blogspot.com/2008/02/timing-properties-of-ff.html

Suresh
 
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