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Microchip Technology DSC1121CI2-012.2880 — Crystals & Oscillators

DSC1121CI2-012.2880 XO (Standard) CMOS 12.288 MHz MEMS

MPNDSC1121CI2-012.2880
Active

Microchip DSC1121 series MEMS XO, 12.288 MHz CMOS output, ±25 ppm stability, AEC-Q100, 6-SMD no-lead package, -40 to 85°C

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

Specifications

DSC1121CI2-012.2880 specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Voltage2.25V ~ 3.6V
Current - supply35mA
Current - supply (Disable)22mA
Frequency12.288 MHz
Frequency stability±25ppm
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
PackageTube
RatingsAEC-Q100
FunctionEnable/Disable
Base resonatorMEMS
Case6-SMD, No Lead

Product details

12.288 MHz MEMS clock for automotive and industrial timing

The DSC1121CI2-012.2880: CMOS output drives standard logic families directly; the Enable/Disable function lets the system shut down the oscillator for low-power sleep modes, dropping supply current from 35 mA to 22 mA.

AEC-Q100 qualification and supply voltage flexibility

The AEC-Q100 rating means this part passed automotive-grade reliability stress tests (temperature cycling, ESD, latch-up) and is suitable for under-hood and cabin electronics where a standard commercial oscillator would not be qualified. Supply voltage accepts 2.25V to 3.6V — the same BOM position can be shared across 2.5V and 3.3V domains without a rail converter. Lifecycle status is Active per Microchip — no last-time-buy window, no end-of-life pressure; the part is available for both new designs and production replenishment.

6-SMD footprint and board integration

Packaged in a 6-SMD no-lead case measuring 3.20 mm x 2.50 mm with a seated height of 0.90 mm — a compact footprint that fits dense PCB layouts where height clearance is tight. Surface-mount assembly with standard reflow profiles; no external load capacitors needed because the MEMS oscillator includes the full resonator and drive circuit on-chip.

Frequently asked questions

What is the frequency stability of DSC1121CI2?

The frequency stability is ±25 ppm over the full operating temperature range. This is a tight tolerance for a MEMS oscillator and sufficient for most serial communication clocks and MCU timing without external trimming.