Power up sequence of an SRAM?

Question: Is there a power up for ZBT/NoBL and Standard Sync SRAM? Eg. Vdd first, followed by Vddq as in QDR SRAMs.



 There is no power up sequence for our NoBL/Sync srams. It does not really matter  as to when you supply Vdd/Vss to the device as long as you start accessing the device after all the power supplies have stabilized.