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Microchip Technology DSC1124BE2-100.0000 — Crystals & Oscillators

DSC1124BE2-100.0000 100 MHz MEMS HCSL Oscillator

MPNDSC1124BE2-100.0000
Active

Microchip DSC1124BE2-100.0000 — XO (Standard) MEMS oscillator, 100 MHz fixed frequency, HCSL output, ±25 ppm stability, 2.25V–3.6V supply, -20°C to 70°C, 6-SMD no-lead package.

Microchip Technology DSC1124BE2-100.0000 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1124BE2-100.0000 specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1124
MountingSurface Mount
Supply voltage2.25V ~ 3.6V
Current - supply42mA
Current - supply (Disable)22mA
Frequency100 MHz
Frequency stability±25ppm
Operating temperature-20°C~70°C
Size (Dimension)0.197\" L x 0.126\" W (5.00mm x 3.20mm)
Height - seated0.035\" (0.90mm)
OutputHCSL
PackageTube
FunctionEnable/Disable
Base resonatorMEMS
Case6-SMD, No Lead

Product details

100 MHz HCSL reference clock — MEMS construction

The HCSL output is designed for high-speed differential clock distribution — common in PCIe reference clocks, Ethernet PHY reference inputs, and FPGA clock trees that expect a current-mode differential signal.

The supply voltage spans 2.25V to 3.6V, covering both 2.5V and 3.3V rails without an external LDO.

Enable/Disable function and package outline

The 6-SMD, No Lead package measures 5.00 mm x 3.20 mm with a seated height of 0.90 mm — a standard 5×3.2 mm oscillator footprint that fits many existing PCB layouts designed for quartz oscillators of the same size.

Frequently asked questions

Does the DSC1124BE2-100.0000 work with a 2.5V supply?

Yes. The supply voltage range is 2.25V to 3.6V, so a 2.5V rail is within spec. No external regulator is required.

Can I replace a quartz oscillator with this MEMS oscillator on the same PCB footprint?

The DSC1124BE2-100.0000 uses a standard 5.00 mm x 3.20 mm 6-SMD no-lead package, which matches the footprint of many quartz oscillators of the same size. However, MEMS oscillators typically have different decoupling and output termination requirements — review the Microchip application note for the DSC1124 family before substituting.

Does the DSC1124BE2-100.0000 require external load capacitors?

No. Because it is a MEMS-based oscillator (not a quartz crystal resonator), the output is a driven HCSL signal. No external load capacitors are needed at the output — the termination is a 50-ohm to ground or a Thevenin equivalent per the HCSL standard.

How does the DSC1124BE2-100.0000 compare to a similar 100 MHz HCSL oscillator from another manufacturer?

The key differentiator is the MEMS resonator — it offers faster start-up and better shock/vibration tolerance than a quartz-based HCSL oscillator. The ±25 ppm stability and 2.25V–3.6V supply range are comparable to most quartz HCSL parts in the same 5×3.2 mm package. Pin compatibility depends on the specific pinout — confirm the Enable/Disable function and output type match the existing layout.