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Microchip Technology DSC400-1111Q0081KI1T — Crystals & Oscillators

DSC400-1111Q0081KI1T MEMS XO – Quad LVCMOS 27/50/25/12 MHz

MPNDSC400-1111Q0081KI1T
Active

Microchip DSC400 series, XO (Standard) MEMS oscillator, four LVCMOS outputs at 27 MHz, 50 MHz, 25 MHz, 12 MHz, ±50 ppm stability, -40 to 85 °C, 20-VFQFN exposed-pad package.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC400-1111Q0081KI1T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC400
Voltage2.25V ~ 3.6V
Frequency stability±50ppm
Frequency - output 127MHz
Frequency - output 250MHz
Frequency - output 325MHz
Frequency - output 412MHz
Operating temperature-40°C ~ 85°C
Height0.035\" (0.90mm)
Size (Dimension)0.197\" L x 0.126\" W (5.00mm x 3.20mm)
OutputLVCMOS
PackageTape & Reel (TR)
FunctionEnable/Disable
Base resonatorMEMS
Case20-VFQFN Exposed Pad

Product details

Four clocks in one 5x3.2 mm package

The DSC400-1111Q0081KI1T packs four independent LVCMOS clock outputs — 27 MHz, 50 MHz, 25 MHz, and 12 MHz — into a single 5.00 mm x 3.20 mm 20-VFQFN package, replacing up to four discrete crystal oscillators on the BOM. It uses a MEMS resonator rather than a quartz crystal, which means better shock and vibration tolerance and faster start-up — useful if the board goes into a portable instrument or a panel-mount controller that sees occasional impact.

Industrial temp grade and supply flexibility

Rated for -40 to 85 °C, this oscillator fits outdoor telecom cabinets, factory-floor PLCs, and engine-bay modules where the ambient temperature swings beyond commercial limits. The supply voltage spans 2.25 V to 3.6 V, so it can run from a 3.3 V or 2.5 V rail without an extra regulator — one less part to place. Frequency stability is ±50 ppm across the full temperature and voltage range, tight enough for most UART, SPI, and Ethernet PHY reference clocks.

Active and available for new designs

Microchip lists the DSC400-1111Q0081KI1T as Active — no NRND or EOL notice — so it is safe to qualify into a new BOM today. The Enable/Disable function lets you gate the outputs for power savings without cycling the supply rail.

Frequently asked questions

What is the frequency output of DSC400-1111Q0081KI1T?

It outputs four LVCMOS clocks: 27 MHz, 50 MHz, 25 MHz, and 12 MHz. All four are available simultaneously from the same package.

Can DSC400-1111Q0081KI1T replace a standard 27 MHz crystal oscillator?

It can replace a discrete 27 MHz oscillator, but note that this part also provides three additional frequencies (50, 25, 12 MHz) on the same die. If the board only needs 27 MHz, a single-output MEMS oscillator may be a lower-cost alternative — but the quad-output saves board space and reduces part count when multiple clocks are required.