It runs on any rail from 1.8V to 3.3V — one BOM line covers 1.8V, 2.5V, or 3.3V domains without a separate regulator or a different oscillator variant.
Housed in a 4-VLGA package measuring 2.50 mm x 2.00 mm with a seated height of 0.89 mm.
It's a current design-in part from Microchip, available through independent distribution.
