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Microchip Technology DSC400-4444Q0030KI1T — Crystals & Oscillators

DSC400-4444Q0030KI1T MEMS XO – 4×100 MHz HCSL, Active

MPNDSC400-4444Q0030KI1T
Active

Microchip DSC400 series, XO (Standard) MEMS oscillator, 4 outputs 100 MHz HCSL, ±50 ppm stability, 2.25-3.6V supply, -40°C to 85°C, 20-VFQFN exposed pad

Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC400-4444Q0030KI1T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC400
Supply voltage2.25V ~ 3.6V
Frequency stability±50ppm
Frequency - output 1100MHz
Frequency - output 2100MHz
Frequency - output 3100MHz
Frequency - output 4100MHz
Operating temperature-40°C~85°C
Height0.035\" (0.90mm)
Size (Dimension)0.197\" L x 0.126\" W (5.00mm x 3.20mm)
OutputHCSL
PackageTape & Reel (TR)
FunctionEnable/Disable
Base resonatorMEMS
Case20-VFQFN Exposed Pad

Product details

Four 100 MHz HCSL outputs from a single MEMS resonator

HCSL (High-Speed Current Steering Logic) is the standard clock format for PCI Express reference clocks — the 100 MHz frequency matches the PCIe Gen 1/2/3 reference clock requirement, so this part can serve as the PCIe root-complex clock source.

The supply voltage range of 2.25V to 3.6V covers both 2.5V and 3.3V rails — no separate LDO is needed when the board uses either rail, and the part tolerates the ripple from a switching regulator as long as it stays within the absolute-maximum rating.

Frequently asked questions

What is the output type of the DSC400-4444Q0030KI1T?

The output is HCSL (High-Speed Current Steering Logic), the standard for PCI Express reference clocks.