Question
For proper operation the datasheet says: VCCA must always be less than VCCY but
inside the data sheet,
on the Power Requirementssection, it is described that VCCA can be equal to
VCCY. You have a contradiction in your datasheet. Can I work with VCCA = VCCY?
Answer
VCCA must be LESS THAN or EQUAL TO VCCY. The information in the datasheet is
correct but could be stated more clearly. It is ok for you to use VCCA = VCCY.