You might consider filing a CASE on this. And post
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never saw any posts from Cypress so i opened a case about a week ago.
just heard back that "yes, it's a goof but we have to live with it ..."
they have the chip in production and in use by people so changing the part # would be problematic. so they will modify the datasheet to show the exception and declare that the magic decoder ring has exceptions (CY8C5287).