What the 40 MHz MEMS clock buys you over quartz
Supply voltage range 2.25V to 3.6V covers 2.5V and 3.3V rails natively; no external LDO needed when moving between logic families.
Package, footprint, and board-level fit
6-VDFN package measures 2.50 mm x 2.00 mm with a seated height of 0.90 mm — the small footprint leaves room for tight layout around a processor or FPGA, but the 0.50 mm pitch pads demand careful solder-paste stencil design to avoid bridging. CMOS output level is compatible with 3.3V and 2.5V logic families directly; the 35 mA max supply current is drawn from the Vdd rail, not the output, so the drive strength is adequate for a single fan-out to a clock input without a buffer.