DSC1001BE1-040.0000 is a MEMS-based XO (standard oscillator) delivering a 40 MHz CMOS output across a 1.8 V to 3.3 V supply range — one device serves the 1.8 V core rail, the 2.5 V I/O bank, and the 3.3 V peripheral bus without a level translator. AEC-Q100 qualification means this part carries the automotive-grade documentation an OEM auditor expects — the PPAP package includes the temperature-grade reliability data, not just a datasheet footnote.
The 1.8–3.3 V operating range covers the three most common digital supply voltages in a single BOM line — a 1.8 V MCU core and a 3.3 V Ethernet PHY on the same board use the same oscillator order code.
Active lifecycle — no obsolescence watch for new designs
Product status is Active — no last-time-buy deadline, no NRND flag.
