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PCF8575C - Texas Instruments web page and Datasheet missing

Other Parts Discussed in Thread: PCF8575, PCF8575C


I finally found out why my custom board is working bad, and the reason is because my supplier used a PCF8575C instead of a PCF8575.

But the real struggle was to find out that the PCF8575C is like not existing anymore.

The Texas Instruments web page is unreachable, only through web archive, and the datasheet is unaviable even by a research on google

Why is that? What append with the PCF8575C?