I am referring to the nominal voltage (digital glue). I am aware of the different domains. If you check papers from IEDM or the IRPS roadmap, it seems this node should be at 1.3v. D. Sylvester was making the same comment today. @User just trying to understand why this techno use the same nominal voltage to characterize its libraries is in 180nm. And you are correct, around the nominal voltage you do overdrive with around 200mV to go faster at the expense of power and aging.