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Microchip Technology DSC1121AM1-100.0000T — Crystals & Oscillators

DSC1121AM1-100.0000T MEMS Oscillator – 100 MHz, CMOS

MPNDSC1121AM1-100.0000T
Active

Microchip Technology DSC1121AM1-100.0000T, XO (Standard) MEMS oscillator, 100 MHz CMOS output, ±50 ppm stability, AEC-Q100 qualified, -55°C to 125°C operating range.

Microchip Technology DSC1121AM1-100.0000T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1121AM1-100.0000T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Supply voltage2.25V ~ 3.6V
Current - supply35mA
Current - supply (Disable)22mA
Frequency100 MHz
Frequency stability±50ppm
Operating temperature-55°C~125°C
Size (Dimension)0.276\" L x 0.197\" W (7.00mm x 5.00mm)
Height - seated0.035\" (0.90mm)
OutputCMOS
PackageTape & Reel (TR)
RatingsAEC-Q100
FunctionEnable/Disable
Base resonatorMEMS
Case6-SMD, No Lead Exposed Pad

Product details

100 MHz MEMS oscillator for harsh-environment timing

The DSC1121AM1-100.0000T is a 100 MHz MEMS-based XO (Standard) oscillator from Microchip's DSC1121 series, delivering a CMOS output with ±50 ppm frequency stability across the full -55°C to 125°C military temperature range. The MEMS resonator provides inherent shock and vibration immunity compared to quartz, reducing phase-noise degradation in high-g environments such as engine control units, ADAS cameras, and industrial motor drives.

Supply voltage flexibility and enable/disable function

Operating from 2.25V to 3.6V, the oscillator covers 2.5V and 3.3V logic rails without an external regulator — the wide input range simplifies BOM consolidation across multi-rail designs.

Frequently asked questions

Is the DSC1121AM1-100.0000T compatible with 3.3V logic?

Yes. The supply voltage range of 2.25V to 3.6V covers 3.3V rails directly. The CMOS output swings rail-to-rail, so it interfaces with 3.3V logic families without level translation.

Can the DSC1121AM1-100.0000T replace a standard quartz oscillator in an existing design?

Functionally yes — it is a drop-in XO replacement with the same 100 MHz CMOS output and 6-SMD footprint (7.00mm x 5.00mm). However, the MEMS resonator has different phase-noise characteristics than quartz; verify jitter margins in PLL-based clock trees. The Enable/Disable pin mapping must match the original quartz part's pinout.