The DSC1001AI1-066.0000T is a 66 MHz MEMS-based oscillator (XO) with CMOS output, rated across -40°C to +85°C and qualified to AEC-Q100 — the automotive IC reliability standard covering temperature cycling, ESD, and latch-up. The supply voltage accepts 1.8V to 3.3V, so it can run off a 3.3V regulator or a 1.8V core rail without a level translator on the output.
Housed in a 4-SMD, no-lead exposed-pad package measuring 7.00 mm x 5.00 mm with a seated height of 0.90 mm. The 0.276" x 0.197" footprint is a standard 7x5 mm oscillator land pattern; no via-in-pad required.
The DSC1001 series is the current-generation MEMS oscillator family; no pin-compatible successor has been announced. Quoted to order against BOM quantities; availability confirmed at RFQ time.