The DSC1001CC1-012.8888 is a standard XO (Standard) MEMS oscillator from Microchip's DSC1001 series, delivering a 12.8888 MHz CMOS output from a silicon MEMS resonator rather than a quartz crystal. It operates over a 1.8V to 3.3V supply range, so a single BOM line can serve 1.8V, 2.5V, or 3.3V logic domains without a separate voltage rail. The 4-SMD, no-lead package (3.20mm x 2.50mm, 0.90mm seated height) is a standard footprint shared with many quartz oscillators — layout reuse is straightforward.
Temperature grade and automotive qualification
Despite the commercial temperature range, it carries an AEC-Q100 rating — the same reliability stress and qualification flow used for automotive ICs. That means the MEMS die and package have passed the same temperature cycling, ESD, and latch-up tests as an under-hood part, even if the temperature spec doesn't reach -40°C.
Standby power-down function
Active draw is 6.3mA max, so the oscillator's own consumption is negligible in most systems; the standby current matters more for always-on or intermittent-duty applications.
Listed as Active by Microchip — no end-of-life notice, no NRND flag.