54 MHz MEMS oscillator — automotive-qualified, now obsolete
The DSC6001CE1A-054.0000 is a 54 MHz MEMS-based XO (standard) from Microchip's DSC60XX series, delivering CMOS output in a 3.20 mm × 2.50 mm 4-SMD no-lead package. Rated AEC-Q100, it operates from -20°C to 70°C with ±50 ppm frequency stability and draws 1.3 mA typical from a 1.71V to 3.63V supply — covering 1.8V, 2.5V, and 3.3V rails without an external regulator.
Sourcing reality — discontinued, surplus-channel only
No official pin-compatible successor is listed; a board spin to a current DSC60XX variant (same package, different frequency or stability grade) is the typical migration path.
