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Microchip Technology DSC1121CM1-012.0000T — Crystals & Oscillators

DSC1121CM1-012.0000T MEMS XO 12 MHz CMOS -55°C to 125°C

MPNDSC1121CM1-012.0000T
Active

Microchip DSC1121 series MEMS XO (Standard), 12 MHz CMOS output, ±50ppm stability, 2.25V–3.6V supply, -55°C to 125°C, 6-SMD package, Enable/Disable function

Microchip Technology DSC1121CM1-012.0000T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1121CM1-012.0000T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Supply voltage2.25V ~ 3.6V
Current - supply35mA
Current - supply (Disable)22mA
Frequency12 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
PackageTape & Reel (TR)
FunctionEnable/Disable
Base resonatorMEMS
Case6-SMD, No Lead

Product details

The DSC1121CM1-012.0000T is a MEMS-based XO (Standard) from Microchip's DSC1121 series, delivering a 12 MHz CMOS output with ±50ppm frequency stability across the full -55°C to 125°C military temperature range.

Supply and control flexibility

The wide supply range of 2.25V to 3.6V covers 2.5V and 3.3V logic rails without an external regulator — the CMOS output swings rail-to-rail, so a 3.3V supply yields a 3.3V logic-compatible output.

Housed in a 6-SMD, No Lead package measuring 3.20mm x 2.50mm with a seated height of 0.90mm — a standard footprint that places without tombstoning risk on a typical reflow profile.

Frequently asked questions

Is DSC1121CM1-012.0000T compatible with 3.3V logic?

Yes. The supply range of 2.25V to 3.6V includes 3.3V, and the CMOS output swings rail-to-rail — at 3.3V supply the output is 3.3V logic-compatible.

Can DSC1121CM1-012.0000T replace a standard 12 MHz crystal oscillator?

Functionally yes — it provides a 12 MHz CMOS clock output with ±50ppm stability. However, it is a MEMS-based oscillator, not a quartz crystal; the package is a 6-SMD, No Lead footprint, so the PCB layout must match the 3.20mm x 2.50mm land pattern.

Does DSC1121CM1-012.0000T have an enable/disable function?

Yes, the Enable/Disable pin is standard on this part. When disabled, the maximum supply current drops to 22mA.