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ADuM6421ABRNZ3 with 5V VDDP

In the ordering guide from the datasheet for the ADuM6421A it states that the ADuM6421ABRNZ3 has a typical VDDP of 3.3V.  Is there any problem with connecting a 5V supply to this part instead?  Or should only the ADuM6421ABRNZ5 be used in that case?