AEC-Q100 grade — under-hood temperature band
The DSC1001DL2-027.0000: That places it in the under-hood or engine-bay domain — a 27 MHz clock that holds ±25 ppm stability across the full automotive temperature sweep, not just cabin-grade 85°C.
Supply flexibility — one oscillator, three voltage rails
Operates from 1.8V to 3.3V supply — a single DSC1001DL2-027.0000 covers the three most common logic rails without a separate LDO or level translator.
MEMS resonator — no quartz aging curve to manage
That means no crystal aging drift, no start-up reliability concerns from mechanical shock, and a shorter initial frequency calibration window.
Housed in a 4-SMD no-lead package measuring 2.50 mm × 2.00 mm with a seated height of 0.90 mm. The 0.098-inch by 0.079-inch footprint is standard for 4-pin MEMS oscillators — the same land pattern used by SiTime and other MEMS clock suppliers, so a second-source swap is a BOM change, not a board spin.