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Microchip Technology DSC1033BI1-033.3330 — Crystals & Oscillators

DSC1033BI1-033.3330 MEMS Oscillator – 33.333 MHz, CMOS, 3.3V

MPNDSC1033BI1-033.3330
Active

Microchip DSC1033BI1-033.3330, PureSilicon™ MEMS XO, 33.333 MHz, CMOS output, 3.3V supply, ±50 ppm stability, -40°C to 85°C, 4-SMD no-lead package.

Microchip Technology DSC1033BI1-033.3330 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1033BI1-033.3330 specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1033, PureSilicon™
MountingSurface Mount
Supply voltage3.3V
Current - supply3mA (Typ)
Current - supply (Disable)1µA
Frequency33.333 MHz
Frequency stability±50ppm
Operating temperature-40°C~85°C
Size (Dimension)0.197\" L x 0.126\" W (5.00mm x 3.20mm)
Height - seated0.035\" (0.90mm)
OutputCMOS
PackageTube
FunctionStandby (Power Down)
Base resonatorMEMS
Case4-SMD, No Lead

Product details

33.333 MHz MEMS clock – 3 mA active, 1 µA standby

DSC1033BI1-033.3330 is a MEMS-based XO (Standard) from Microchip's PureSilicon™ series, delivering a 33.333 MHz CMOS output from a 3.3V rail. Packaged in a 5.00 mm x 3.20 mm 4-SMD no-lead case, 0.90 mm seated height — fits standard XO footprints with no layout change from quartz.

Active production – no last-time-buy pressure

The base product number DSC1033 covers the full family; this exact trim (BI1 for ±50 ppm, -40°C to 85°C) is a standard catalog variant, not a custom or restricted-code part.

Frequently asked questions

Can DSC1033BI1-033.3330 replace a standard quartz crystal oscillator?

Yes — it is a drop-in XO replacement. The 33.333 MHz CMOS output and 3.3V supply match most quartz XO footprints. The MEMS base resonator provides faster startup and better shock/vibration tolerance than quartz, with no external load capacitors needed.

What is the difference between this MEMS oscillator and a standard crystal oscillator?

A MEMS oscillator integrates the resonator and driver in one silicon die, eliminating the quartz crystal blank and its external load caps. The DSC1033 series offers ±50 ppm stability without the aging drift of quartz, and draws 3 mA active vs. typical quartz XO current of 5–15 mA at the same frequency.