Active production MEMS oscillator with AEC-Q100 grade
The DSC1001CL5-014.7456 is an active-production XO (standard oscillator) from Microchip Technology, based on a MEMS resonator rather than a quartz crystal — the MEMS die is sealed at wafer level, which eliminates the start-up reliability edge of a quartz blank and gives a wider shock/vibration tolerance. Output is CMOS at 14.7456 MHz, a common reference for CAN controllers, Ethernet PHYs, and USB hubs; the 1.8 V to 3.3 V supply range lets it share the core rail without an extra LDO.
Supply current and enable/disable control
Max supply current is 6.3 mA when enabled — the MEMS core draws less than a comparable quartz oscillator at the same frequency, which matters for battery-powered nodes where every millamp counts. The enable/disable function pulls the output to high-impedance and drops the supply current to 15 µA max — useful for gating the clock in sleep modes without a separate load-switch.
Package footprint and layout note
Housed in a 4-SMD no-lead package measuring 3.20 mm × 2.50 mm with a seated height of 0.90 mm — the small footprint frees board area, but the no-lead construction means the solder fillet is hidden; X-ray inspection is the reliable way to confirm the joint after reflow.