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Microchip Technology DSC1121CI1-025.0000T — Crystals & Oscillators

DSC1121CI1-025.0000T MEMS Oscillator

MPNDSC1121CI1-025.0000T
Active

Microchip DSC1121CI1-025.0000T, XO (Standard), 25 MHz, CMOS output, MEMS base resonator, 6-VDFN package, ±50 ppm stability, -40°C to 85°C, 2.25V to 3.6V supply

Microchip Technology DSC1121CI1-025.0000T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1121CI1-025.0000T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Supply voltage2.25V ~ 3.6V
Current - supply35mA
Current - supply (Disable)22mA
Frequency25 MHz
Frequency stability±50ppm
Operating temperature-40°C~85°C
Size (Dimension)0.126\" L x 0.098\" W (3.20mm x 2.50mm)
Height - seated0.035\" (0.90mm)
OutputCMOS
PackageTape & Reel (TR)
FunctionEnable/Disable
Base resonatorMEMS
Case6-VDFN

Product details

MEMS oscillator at 25 MHz — quartz alternative

The DSC1121CI1-025.0000T is a MEMS-based XO (Standard) from Microchip's DSC1121 series, delivering a 25 MHz CMOS output from a 6-VDFN package. The MEMS resonator replaces the quartz crystal — no load-capacitance matching, no start-up margin to calculate, and no crystal aging drift to budget.

Supply range and enable/disable function

Operating from 2.25V to 3.6V, the oscillator spans 2.5V and 3.3V logic rails without a separate regulator. The Enable/Disable function lets the system gate the clock — pulling the enable pin low drops supply current from 35 mA max to 22 mA max, useful for power-sensitive designs that shut down unused peripherals.

Active lifecycle — design-in ready

Microchip lists the DSC1121CI1-025.0000T as Active.

Frequently asked questions

Is DSC1121CI1-025.0000T a direct drop-in replacement for a quartz oscillator?

Functionally yes — it outputs a 25 MHz CMOS clock from a 6-VDFN package, same as many quartz XOs. The MEMS resonator eliminates the need for external load capacitors and offers better shock/vibration tolerance. Confirm the footprint matches your layout: 3.20mm x 2.50mm, 0.90mm seated height. No pin-for-pin quartz equivalent is listed by Microchip; the DSC1121 series is a MEMS-native design.

How can I order DSC1121CI1-025.0000T or request a quote?

The part is Active and available through independent distribution.