It is ROHS3 compliant. The WLCSP package is moisture-sensitive; store the reels in a dry cabinet or use a moisture-barrier bag with desiccant.
Write cycle timing and endurance
The write cycle time for a word or page is 5 ms. That is typical for this EEPROM family; if your application writes frequently, account for the write-cycle delay in the firmware timing loop. The part uses a standard SPI interface, so no external pull-up resistors are required on the data lines unless the bus has long traces or multiple slaves.