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Microchip Technology DSC1121AI2-081.0000T — Crystals & Oscillators

DSC1121AI2-081.0000T MEMS Oscillator 81 MHz CMOS - Microchip

MPNDSC1121AI2-081.0000T
Active

Microchip DSC1121 series XO (Standard) MEMS oscillator, 81 MHz fixed frequency, CMOS output, 2.25 V to 3.6 V supply, ±25 ppm stability, -40°C to 85°C, 6-VDFN exposed pad package, Tape & Reel.

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

Specifications

DSC1121AI2-081.0000T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Voltage2.25V ~ 3.6V
Current - supply35mA
Current - supply (Disable)22mA
Frequency81 MHz
Frequency stability±25ppm
Operating temperature-40°C~85°C
Size (Dimension)0.276\" L x 0.197\" W (7.00mm x 5.00mm)
Height - seated0.035\" (0.90mm)
OutputCMOS
PackageTape & Reel (TR)
FunctionEnable/Disable
Base resonatorMEMS
Case6-VDFN Exposed Pad

Product details

Active MEMS oscillator for 81 MHz clock trees

Supply voltage spans 2.25 V to 3.6 V, covering 2.5 V and 3.3 V logic rails from the same BOM line; the Enable/Disable function lets the system gate the clock for power savings, dropping supply current from 35 mA (max) to 22 mA (max) when disabled.

Housed in a 6-VDFN with exposed pad (7.00 mm x 5.00 mm, 0.90 mm seated height), the part requires a thermal via pattern under the pad for heat dissipation — a standard two-layer board with a ground-plane stitch works, but the pad must be soldered to the PCB, not left floating. The 0.276" x 0.197" footprint matches industry-standard 7x5 mm oscillator land patterns, so it drops into existing layouts without a board spin if the supply voltage and output type align.

Listed as Active by Microchip — no end-of-life notice, no NRND flag.

Frequently asked questions

What is the frequency of DSC1121AI2-081.0000T?

The oscillator outputs a fixed 81 MHz CMOS clock signal.

What supply voltage does DSC1121AI2-081.0000T need?

It operates from 2.25 V to 3.6 V, covering both 2.5 V and 3.3 V rails without an external regulator.

What package does DSC1121AI2-081.0000T come in?

It is supplied in a 6-VDFN exposed-pad package measuring 7.00 mm x 5.00 mm, 0.90 mm seated height.

How do I get pricing and availability for DSC1121AI2-081.0000T?

Submit an RFQ through the storefront. The part is active and sourced through independent distribution; current pricing and lot-specific availability are confirmed at quote time.