MEMS oscillator — 36 MHz CMOS clock source
The DSC1033DI1-036.0000T is a MEMS-based oscillator (XO) from Microchip's PureSilicon™ series, delivering a 36 MHz CMOS output from a 3.3V supply. Typical supply current is 3 mA max, with a standby mode that drops to 1 µA when disabled — the Standby (Power Down) function lets the system gate the clock tree and save power when the oscillator is not needed.
Microchip has marked the DSC1033DI1-036.0000T as Obsolete. No official successor or pin-compatible replacement is listed in the Microchip DSC1033 family. Available through independent surplus channels — quantities are lot-specific and confirmed at RFQ. The MEMS-based construction means date-code consistency and package marking integrity are the primary authenticity checks; a decap X-ray can verify the MEMS die versus a quartz blank.
Package and board-fit note
Housed in a 4-SMD, No Lead package measuring 2.50 mm x 2.00 mm with a seated height of 0.90 mm. The 0.50 mm pitch pads require a standard SMD reflow profile; no via-in-pad is needed, but the small footprint demands precise solder-paste stencil aperture control to avoid bridging.