AEC-Q100 qualified MEMS oscillator at 54 MHz
The DSC1001DI2-054.0000B: CMOS output at 54 MHz with ±25ppm stability means the clock tree sees a clean square wave from a cold crank to a hot soak, without the frequency drift that pulls a CAN or FlexRay bus out of tolerance. Draws 7.2 mA max from a 1.8V to 3.3V supply rail, and the standby (power-down) function drops consumption to 15 µA — useful for modules that need to wake on a bus event without draining the battery during ignition-off.
This BOM line does not require a last-time-buy or a board-spin to a successor part — the DSC1001DI2-054.0000B ships as a current production item. The 4-SMD no-lead package (2.50mm x 2.00mm x 0.90mm) mates with a standard land pattern — no via-in-pad or exotic footprint required.
Operating supply spans 1.8V to 3.3V — the same oscillator can feed a 1.8V MCU core clock and a 3.3V peripheral bus clock without a second frequency reference, simplifying the clock-tree BOM.