Supply range, stability, and temperature grade
Operating supply voltage spans 2.25 V to 3.6 V, covering both 2.5 V and 3.3 V rails without an external regulator — the internal MEMS oscillator and PLL lock across this range with ±50 ppm frequency stability.
Package, enable function, and supply current
Housed in a 6-SMD no-lead package measuring 2.50 mm x 2.00 mm with a seated height of 0.90 mm — a compact footprint that fits tight PCB layouts alongside MCUs or PHYs.
No second-source or pin-compatible alternative is listed by Microchip, but the DSC1121 series shares the same footprint across frequency options, so a different frequency variant could serve as a functional swap if the system clock tree allows. For non-automotive builds, the same part still benefits from the extended reliability screening.