How to calculate library setup time and Hold timel?

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ramagandhi

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hello every one,

can any one explain about How to calculate library setup time and Hold time?



Thanks in Advance

RGR
 

by using spice simulation the min delay (setup time) required between data and clock so that data is captured to output is calculated.

DATA __ __/```````\___
CLK _/``\__/``\__
OP _______/`````
for example, the simulation is done in number of steps by decreasing delay between data and clock. in each it verify the output (should be 1 in above case). in this way the min time between between clk and data pin gives the steup time.
 

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