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[SOLVED] What's the difference between liberty (.lib) and standard delay format (.sdf)?

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vivekraj

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Whats the difference between liberty (.lib) and standard delay format (.sdf)?

Whats the difference between liberty (.lib) and standard delay format (.sdf)?
Both of them contain the timing information of the design, right?
 

Re: Whats the difference between liberty (.lib) and standard delay format (.sdf)?

vivekraj said:
Whats the difference between liberty (.lib) and standard delay format (.sdf)?
Both of them contain the timing information of the design, right?
Click to expand...

.lib is the outcome of the standard cell characterization. it has NO design information.
.sdf is the outcome of the chip implementation, it has design information.
 
Re: Whats the difference between liberty (.lib) and standard delay format (.sdf)?

To clarify, .sdf is the delay characterization of the design. It gets used to annotate the design information, which is captured in another format.
 

Re: Whats the difference between liberty (.lib) and standard delay format (.sdf)?

dave_59 said:
To clarify, .sdf is the delay characterization of the design. It gets used to annotate the design information, which is captured in another format.
Click to expand...

Yes, for the full story you need a netlist + SDF file.
 

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