Standby power-down and supply range
When the standby (power-down) pin is asserted, the oscillator draws 15 µA max — low enough to leave on a battery bus without draining the cell during sleep. The supply voltage spans 1.8V to 3.3V, so the same BOM line works across a 1.8V-core FPGA bank and a 3.3V peripheral bus without a separate level translator.
The 4-SMD no-lead exposed-pad package (7.00mm x 5.00mm, 0.90mm seated height) has a large thermal pad underneath — the pad needs a solid via array to the ground plane, or the part will overheat under the hot-air station.