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Microchip Technology DSC2311KI2-R0003T — Crystals & Oscillators

DSC2311KI2-R0003T MEMS XO 127MHz CMOS 2.25-3.6V Active

MPNDSC2311KI2-R0003T
Active

Microchip DSC2311KI2-R0003T, XO (Standard), MEMS resonator, dual 127 MHz CMOS outputs, 2.25 V to 3.6 V supply, ±25 ppm stability, -40 to +85 °C, 6-VDFN package

Microchip Technology DSC2311KI2-R0003T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC2311KI2-R0003T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC2311
Supply voltage2.25V ~ 3.6V
Current - supply (Disable)23 mA
Frequency stability±25ppm
Frequency - output 1127MHz
Frequency - output 2127MHz
Operating temperature-40°C~85°C
Height0.035\" (0.90mm)
Size (Dimension)0.098\" L x 0.079\" W (2.50mm x 2.00mm)
OutputCMOS
PackageTape & Reel (TR)
FunctionEnable/Disable
Base resonatorMEMS
Case6-VDFN

Product details

MEMS oscillator with dual 127 MHz CMOS lanes

The DSC2311KI2-R0003T is a MEMS-based XO (Standard) from Microchip's DSC2311 series, delivering two identical 127 MHz CMOS outputs from a single 6-VDFN package measuring 2.50 mm x 2.00 mm.

Wide supply range simplifies rail assignment

The 2.25 V to 3.6 V supply range means this one order code works on a 2.5 V FPGA bank, a 3.3 V microcontroller rail, or a 2.8 V SoC domain — no need to qualify a different oscillator per voltage plane.

Industrial temperature grade and ±25 ppm stability

Rated for -40°C to 85°C, the DSC2311KI2-R0003T holds ±25 ppm frequency stability across the full temperature range — tight enough for a 1 Gbps Ethernet reference clock without a separate TCXO.

Frequently asked questions

Is DSC2311KI2-R0003T a drop-in replacement for a standard quartz crystal oscillator?

Functionally yes — it outputs a CMOS clock at 127 MHz just like a quartz XO. But the MEMS resonator inside has different startup behaviour and shock tolerance. The 6-VDFN footprint (2.50 mm x 2.00 mm) is common for MEMS oscillators; verify the pinout matches your existing quartz oscillator's land pattern before committing the board spin.

How does DSC2311KI2-R0003T compare to similar SiTime oscillators?

Both are MEMS-based XOs with CMOS outputs in similar small packages. The key difference is the supply range: the DSC2311KI2-R0003T spans 2.25 V to 3.6 V, while many SiTime parts are fixed to 2.5 V or 3.3 V only. That wider range simplifies BOM consolidation across multiple voltage domains.