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Microchip Technology DSC400-1111Q0111KI1T — Crystals & Oscillators

DSC400-1111Q0111KI1T MEMS XO - 4 Outputs, LVCMOS, Active

MPNDSC400-1111Q0111KI1T
Active

Microchip DSC400 series, XO (Standard) MEMS oscillator, four LVCMOS outputs: 25 MHz, 20 MHz, 24 MHz, ±50 ppm stability, 2.25V–3.6V supply, industrial temp -40°C to +85°C, 20-VFQFN exposed pad package.

Microchip Technology DSC400-1111Q0111KI1T datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC400-1111Q0111KI1T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC400
Voltage2.25V ~ 3.6V
Frequency stability±50ppm
Frequency - output 125MHz
Frequency - output 220MHz
Frequency - output 324MHz
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 fixed-frequency clock outputs in one package

The DSC400-1111Q0111KI1T integrates a MEMS resonator with four independent LVCMOS output buffers, delivering 25 MHz, 20 MHz, and 24 MHz frequencies from a single 20-VFQFN package. This replaces up to four discrete crystal oscillators on the board — the BOM count drops while keeping the timing tree independent per rail.

Operating from 2.25 V to 3.6 V, the LVCMOS outputs are compatible with 2.5 V and 3.3 V logic families without an external level translator. An enable/disable function on the oscillator allows the outputs to be tri-stated — useful for power gating unused clock domains during low-power sleep modes.

The 20-VFQFN exposed pad package (5.00 mm x 3.20 mm, 0.90 mm height) requires a thermal land on the PCB for proper heat dissipation and mechanical stability.

Frequently asked questions

Is DSC400-1111Q0111KI1T compatible with 2.5 V logic systems?

Yes. The LVCMOS outputs operate across a 2.25 V to 3.6 V supply range, so the output swing at 2.5 V supply meets the VIH/VIL thresholds of standard 2.5 V logic families without a level shifter.

Does DSC400-1111Q0111KI1T have a standard enable/disable functionality?

Yes. The device includes an enable/disable function that tri-states the outputs when disabled, allowing the clock tree to be gated for power savings or test modes.

What is the closest pin-compatible alternative to DSC400-1111Q0111KI1T in the DSC400 family?

The DSC400 series includes multiple frequency-configuration variants in the same 20-VFQFN package and pinout. The base product number DSC400 covers the family; the specific output frequency set and stability grade define the full order code. A direct alternative would be another DSC400 variant with the same package and supply voltage but different output frequencies — confirm the BOM's required frequencies before substituting.

Is DSC400-1111Q0111KI1T RoHS compliant?

The evidence does not explicitly list RoHS compliance status. The part is supplied in a standard 20-VFQFN package typical of RoHS-compliant components, but the buyer should verify the specific date-code and manufacturer's RoHS certificate at the time of ordering.