The DSC1033DI2-012.0000T is a 12 MHz MEMS-based XO (standard oscillator) from Microchip's PureSilicon™ series, delivering a CMOS output at 3.3V with ±25ppm frequency stability.
3 mA typical draw with 1 µA standby — power budget fit
The standby pin (function listed as Standby (Power Down)) lets a microcontroller or system controller gate the oscillator clock during idle periods, trimming the system-level sleep current by the oscillator's active draw.
4-SMD no-lead — rework and footprint notes
Housed in a 4-SMD, No Lead package measuring 2.50mm x 2.00mm with a seated height of 0.90mm max — small enough for space-constrained PCBs but large enough to hand-rework with a hot-air station without cooking adjacent passives.