MEMS oscillator for industrial timing
The MEMS resonator replaces a quartz crystal, providing better shock and vibration immunity — relevant for motor drives, outdoor telecom cabinets, or portable instrumentation where a quartz crystal might fail under mechanical stress. Standby (Power Down) function drops supply current to 1 µA max, letting the oscillator sleep between active periods without a separate enable signal.
It is available through independent distribution in lot-specific quantities, confirmed at RFQ. No official successor or pin-compatible replacement is listed by Microchip for the DSC1033CI1-033.0000. A board-level redesign using a current-production MEMS or quartz oscillator in the same 4-SMD, No Lead footprint is the typical migration path.
Package and footprint for board layout
Housed in a 4-SMD, No Lead package measuring 3.20 mm x 2.50 mm with a seated height of 0.90 mm — a compact footprint that fits tight PCB layouts typical of handheld or space-constrained designs. The 3.3 V supply rail and 3 mA typical current draw keep the thermal budget low, so no special copper pour or via stitching is needed around the oscillator.