MEMS oscillator for automotive clock trees
The DSC6001MI1B-007.3728 is a MEMS-based XO (Standard) from Microchip's DSC60XXB series, delivering a fixed 7.3728 MHz CMOS output. The MEMS resonator replaces a quartz crystal, giving faster startup and better shock/vibration tolerance — relevant for automotive and industrial environments where quartz can fracture under mechanical stress. Rated for -40°C to 85°C with AEC-Q100 qualification, this oscillator is built for under-hood or cabin electronics — an ECU or ADAS module that sees 85°C ambient still holds the ±50 ppm stability window across the full temperature range.
Supply and output compatibility
Operates from 1.71V to 3.63V, covering 1.8V, 2.5V, and 3.3V logic rails without a separate level translator. The CMOS output swings rail-to-rail, so it drives the clock input of an MCU or FPGA directly. Typical supply current is 1.3 mA max — low enough for battery-backed real-time clocks or always-on domains in automotive body controllers. The Enable/Disable function lets the system shut down the oscillator when the clock is unused, cutting supply current further in sleep modes.
Housed in a 4-VFLGA package measuring 2.00 mm x 1.60 mm x 0.89 mm — a compact footprint for dense PCB layouts. The surface-mount land pattern matches standard LGA recommendations; the small size saves board area compared to a 5x3.2 mm quartz oscillator.
The DSC6001MI1B-007.3728 is available for new designs and ongoing BOM positions.