The DSC1001CI2-001.9521T is a MEMS-based XO (Standard) oscillator from Microchip Technology's DSC1001 series, delivering a fixed 1.9521 MHz CMOS output. The ±25 ppm frequency stability holds across the full supply range of 1.8V to 3.3V, so a single BOM line can serve multiple voltage rails without retiming.
Housed in a 4-SMD, No Lead package measuring 3.20 mm x 2.50 mm with a seated height of 0.90 mm.
No pin-compatible second source or direct replacement is documented; the base product number DSC1001 covers the family, but the exact frequency and stability grade are specific to this ordering code.
