Input tolerance of CY2CC910 at 1.8V and 2.5V Operation

Question: When operating the CY2CC910 at 1.8, are the inputs 2.5v tolerant? The feature description implies that it does voltage conversion for 1.8/2.5/3.3v however, Vih max is 2.2v with vdd = 1.8v.

 

Answer:

The input is tolerant to 2.5 when at 1.8 and 3.3 when at 2.5 by design.