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Microchip Technology DSC1121BE2-155.5200 — Crystals & Oscillators

DSC1121BE2-155.5200 MEMS Oscillator 155.52 MHz CMOS Active

MPNDSC1121BE2-155.5200
Active

Microchip DSC1121BE2-155.5200, XO (Standard) MEMS oscillator, 155.52 MHz CMOS output, ±25 ppm stability, 2.25V to 3.6V supply, -20°C to 70°C, 6-VDFN package.

Microchip Technology DSC1121BE2-155.5200 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1121BE2-155.5200 specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Supply voltage2.25V ~ 3.6V
Current - supply35mA
Current - supply (Disable)22mA
Frequency155.52 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)
OutputCMOS
PackageTube
FunctionEnable/Disable
Base resonatorMEMS
Case6-VDFN

Product details

155.52 MHz MEMS oscillator for high-speed timing

The DSC1121BE2-155.5200 is a MEMS-based XO (Standard) oscillator delivering a 155.52 MHz CMOS output — a common reference frequency for 1GbE, Fibre Channel, and SONET/SDH line cards.

Wide supply tolerance and MEMS construction

Supply voltage spans 2.25V to 3.6V, so the same BOM line works on a 2.5V FPGA bank or a 3.3V ASIC rail without a separate regulator or level translator. Packaged in a 6-VDFN measuring 5.00mm x 3.20mm with a seated height of 0.90mm, it fits the same footprint as standard quartz oscillators of the same dimensions, simplifying a drop-in replacement.

Frequently asked questions

Is DSC1121BE2-155.5200 a direct replacement for a standard quartz oscillator of the same frequency?

Yes, in most cases. The DSC1121BE2-155.5200 uses a MEMS resonator instead of quartz, but it outputs a standard CMOS signal at 155.52 MHz with ±25 ppm stability and fits the same 5.00mm x 3.20mm 6-VDFN footprint. The supply range (2.25V to 3.6V) covers 2.5V and 3.3V quartz oscillators. The only difference is the Enable/Disable function — if your existing quartz oscillator does not have that pin, verify the pinout matches before substituting.