33.333 MHz MEMS clock — what the supply current means for your BOM
The DSC1033BI1-033.3330T is a MEMS-based XO (Standard) oscillator from Microchip's PureSilicon™ series, delivering a fixed 33.333 MHz CMOS clock from a 3.3V rail. Typical supply current is 3 mA — less than a third of what a comparable quartz oscillator draws at this frequency, which matters when the oscillator sits on a regulator that feeds the whole MCU bank.
Active lifecycle — sourcing through independent distribution
Product status is Active per Microchip's current records. No last-time-buy or NRND notice on the DSC1033 family. The 4-SMD, No Lead package (5.00mm x 3.20mm) is a standard footprint shared with quartz oscillators, so a board designed for a quartz 5×3.2 mm SMD can accept this MEMS part without layout changes.
Standby function and temperature grade — fit for industrial and battery gear
The Standby (Power Down) pin lets firmware shut the oscillator off between active periods, pulling only 1 µA from the 3.3V rail.