Why a MEMS XO beats a quartz crystal here
For an engine-bay ECU or a cabin-domain controller, that qualification is the difference between a one-time boot and 15-year field life.
48 MHz fixed frequency, wide supply, low current
Output is 48 MHz CMOS — a clean rail-to-rail square wave that drives the clock input of most MCUs, SoCs, or CAN transceivers directly. The supply voltage spans 1.8V to 3.3V, so the same part works on a 1.8V core rail or a 3.3V I/O rail without a level shifter. Current draw is 1.3 mA typical at 48 MHz — low enough that a battery-backed real-time clock domain or a sleep-mode wake-up timer can leave the oscillator running continuously without draining the backup capacitor.
4-VFLGA package: board-fit checklist
The 4-VFLGA package measures 1.60 mm x 1.20 mm with a seated height of 0.89 mm — one of the smallest footprints for a 48 MHz oscillator. The land pattern is a 4-pad array with a 0.50 mm pitch; the centre pad is a thermal and mechanical anchor, not an electrical connection. Surface-mount assembly: the VFLGA is a leadless package, so the solder joint is under the part — X-ray inspection is the only way to verify the fillet. The PCB pad design should follow the Microchip recommended land pattern (typically 0.30 mm pad width, 0.65 mm pad pitch) to avoid tombstoning during reflow.
Active production, no end-of-life risk
The DSC60XXB series is Microchip's mainstream automotive MEMS oscillator family, so supply continuity is tied to a high-volume product line.