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Microchip Technology DSC1121CM1-040.0000 — Crystals & Oscillators

DSC1121CM1-040.0000 – Microchip MEMS XO, 40 MHz, CMOS

MPNDSC1121CM1-040.0000
Active

Microchip DSC1121CM1-040.0000, 40 MHz XO (Standard), CMOS output, MEMS resonator, ±50 ppm stability, 2.25V–3.6V supply, -55°C to 125°C, 6-SMD No Lead package, Active.

Microchip Technology DSC1121CM1-040.0000 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1121CM1-040.0000 specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Supply voltage2.25V ~ 3.6V
Current - supply35mA
Current - supply (Disable)22mA
Frequency40 MHz
Frequency stability±50ppm
Operating temperature-55°C~125°C
Size (Dimension)0.126\" L x 0.098\" W (3.20mm x 2.50mm)
Height - seated0.035\" (0.90mm)
OutputCMOS
PackageTube
FunctionEnable/Disable
Base resonatorMEMS
Case6-SMD, No Lead

Product details

40 MHz MEMS clock for harsh environments

The MEMS die is sealed in a 6-SMD, No Lead package measuring 3.20mm x 2.50mm — a drop-in footprint for many 3.2x2.5mm oscillators.

Supply and power budget fit

Supply voltage spans 2.25V to 3.6V — a single rail serves both 2.5V and 3.3V logic domains.

Product status is Active — still supported for new designs and production. The MEMS resonator construction typically means shorter manufacturing lead times than quartz-based oscillators, which helps when filling a BOM line on a tight schedule.

Frequently asked questions

What is the difference between DSC1121CM1-040.0000 and DSC1121CM2-040.0000?

The evidence does not list the DSC1121CM2 variant. The DSC1121 series shares the same MEMS resonator, CMOS output, and package footprint. The difference is typically in the output drive strength or enable logic — confirm the specific ordering code suffix against the datasheet.

Is DSC1121CM1-040.0000 compatible with 2.5V logic?

Yes. The supply voltage range is 2.25V to 3.6V, which covers both 2.5V and 3.3V rails. The CMOS output swings rail-to-rail, so it directly drives 2.5V logic inputs without a level shifter.