The 2.25V to 3.6V supply range lets it run directly from a 2.5V or 3.3V rail without an external LDO, simplifying the power tree in space-constrained ECU designs.
Package footprint and supply compatibility
Housed in a 6-SMD, No Lead package measuring 3.20 mm x 2.50 mm with a seated height of 0.90 mm — the 0.50 mm pitch footprint matches standard MEMS oscillator land patterns, so a layout designed for a quartz oscillator in the same 3.2x2.5 mm case accepts this part without board spin.
No pin-compatible second source or official successor is documented — the MEMS resonator and AEC-Q100 grade are specific to the DSC1121 series. For a dual-source strategy, a functionally equivalent quartz oscillator with the same 3.2x2.5 mm footprint, 25 MHz, CMOS output, and ±25 ppm stability would require separate qualification for automotive use.