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How to do mixed standard-cell library design at 90nm?

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magicsmoke

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Can anyone explain how to use different libraries in the same design flow with DC?

I want to mix two or more libraries (say Fujitsu CS101 libaries, 0.9V - 1.3V ) but how do I go about that in DC.

I know that a '1' in 0.9V isnt going to be a '1' in 1.3V, so I need to buffer it but how do I go about doing that ?

Can I mix it inside a single block, or are we only talking about being able to change library per-block?

CS101 library overview is here https://www.fujitsu.com/downloads/MICRO/fma/pdf/e620210_CS101_ASIC.pdf
 

Has no one had experience of doing this with this or any other library set?
 

With UPF /CPF, you can indicate which part of the design should be @ 0V9 or 1V3, and the tool will added the level shifter requires to pass from on domain to other.
 

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