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Microchip Technology DSC1121DM1-033.3333 — Crystals & Oscillators

DSC1121DM1-033.3333 MEMS XO 33.3333 MHz CMOS -55°C to 125°C

MPNDSC1121DM1-033.3333
Active

Microchip DSC1121 series XO (Standard), MEMS-based, 33.3333 MHz CMOS output, ±50ppm stability, 2.25V–3.6V supply, 6-SMD 2.5x2.0mm package, -55°C to 125°C operating range

$1.6950Ref. price · indicative, final on quote
Microchip Technology DSC1121DM1-033.3333 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1121DM1-033.3333 specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Supply voltage2.25V ~ 3.6V
Current - supply35mA
Current - supply (Disable)22mA
Frequency33.3333 MHz
Frequency stability±50ppm
Operating temperature-55°C~125°C
Size (Dimension)0.098\" L x 0.079\" W (2.50mm x 2.00mm)
Height - seated0.035\" (0.90mm)
OutputCMOS
PackageTube
FunctionEnable/Disable
Base resonatorMEMS
Case6-SMD, No Lead

Product details

Active production MEMS oscillator for wide-temp designs

The DSC1121DM1-033.3333: At 33.3333 MHz with CMOS output and ±50ppm frequency stability, it serves as the system clock for microcontrollers, FPGAs, or Ethernet PHYs across the full -55°C to 125°C military temperature range.

The 2.25V to 3.6V supply range covers common logic rails (2.5V, 3.0V, 3.3V) without an external LDO — the enable/disable function lets the system shut off the oscillator and drop supply current from 35mA max to 22mA max.

Frequently asked questions

How does DSC1121DM1-033.3333 compare to a traditional quartz oscillator?

The MEMS resonator provides better shock and vibration tolerance than quartz, with faster startup time and no frequency drift from crystal aging effects. The trade-off is that the ±50ppm stability is typical for a standard XO; for tighter stability (e.g., ±25ppm or ±10ppm) a TCXO or OCXO would be needed, but those come in larger packages and higher cost.