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What's the difference between rvt and svt libraries?

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engr

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rvt and svt librareis

Hi All,

Whats difference between rvt and svt Libraries

Thanks
 

Re: rvt and svt librareis

3 Libraries
- HVT ( High Vt)
- SVT (Standard Vt) ( a.k.a RVT regular Vt)
- LVT ( Low Vt)

Advantages of HVT - Low leakage power.
Disadvantages of HVT - Gate Delays are slower.

once u run STA , and meet timing , and u have timing Slack on non-critical paths,
some tools replace SVT cells with HVT cells in non-critical paths to reduce leakage power .
 

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