Why STA Is Popular
Old fashioned deterministic STA is popular for good reasons:
- It requires no vectors, so it does not miss paths.
- The run time is linear in circuit size (for the basic algorithm).
- The result is conservative.
- It typically uses some fairly simple libraries (typically delay and output slope as a function of input slope and output load).
- It is easy to extend to incremental operation for use in optimization.
Read more about this topic: Statistical Static Timing Analysis
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