What's the real absoluted max Supply Voltage for ADL5569?

Good Morning, 

I have a question about the maximum allowed value of Supply Voltage for the component ADL5569. In the datasheet, the absolute Supply value indicated is 5.25V. But subsequently in the field "interface Port" I can read the same value (5.25V) like maximum value for the supplied Value. 

Maybe it is my misunderstanding, but I would ask you if 5.25 V is the maximum allowed value or not? I can supply ADL5569 with this tension value or is unsafety? I would like supply with this value because I have seen better behavior.

thank you everyone for help!

Mauro