The 1.8V to 3.3V supply range lets it run directly from a 1.8V core rail or a 3.3V I/O rail without an intermediate regulator, simplifying the power tree.
Housed in a 4-SMD, No Lead package measuring 3.20mm x 2.50mm with a seated height of 0.90mm — the footprint matches standard quartz oscillator pads, so a board designed for a 3.2x2.5mm crystal oscillator accepts this MEMS part without layout changes.
Product status is Active — Microchip continues to manufacture this order code, and it is open for new designs.