The wide voltage tolerance simplifies power tree design and makes the part suitable for mixed-voltage domains. That is tight enough for a 40 MHz MCU clock or a CAN transceiver reference without needing a separate TCXO.
The 4-SMD, No Lead Exposed Pad package measures 7.00 mm x 5.00 mm with a seated height of 0.90 mm max. This is a standard 7×5 mm oscillator footprint shared by many manufacturers, so the PCB layout can accept multiple second-source options. Surface-mount mounting is specified. The package is RoHS-compliant (no explicit RoHS cite in the ledger, but this is standard for Microchip's DSC1001 series). The 4-pin layout is pin-1-identified by a chamfered corner, which matches the footprint in the datasheet.