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Microchip Technology DSC1121CI2-045.0000 — Crystals & Oscillators

DSC1121CI2-045.0000 MEMS XO, 45 MHz, CMOS, ±25 ppm

MPNDSC1121CI2-045.0000
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Microchip Technology DSC1121CI2-045.0000, XO (Standard), MEMS resonator, 45 MHz CMOS output, ±25 ppm stability, 2.25V–3.6V supply, -40°C to 85°C, 6-VDFN package

Microchip Technology DSC1121CI2-045.0000 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1121CI2-045.0000 specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Voltage2.25V ~ 3.6V
Current - supply35mA
Current - supply (Disable)22mA
Frequency45 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
FunctionEnable/Disable
Base resonatorMEMS
Case6-VDFN

Product details

MEMS-based XO replaces quartz in the same footprint

The DSC1121CI2-045.0000 is a standard XO (XO (Standard)) built around a MEMS resonator rather than a quartz crystal, outputting a 45 MHz CMOS clock (Output: CMOS) from a 6-VDFN package (Package / Case: 6-VDFN) measuring 3.20mm x 2.50mm (Size / Dimension: 0.126" L x 0.098" W (3.20mm x 2.50mm)).

Supply voltage flexibility and frequency stability

The supply voltage range of 2.25V to 3.6V (Voltage - Supply: 2.25V ~ 3.6V) covers both 2.5V and 3.3V logic rails — the same BOM position works across a 3.3V FPGA bank and a 2.5V SoC without a secondary regulator or level translator. Frequency stability is ±25 ppm (Frequency Stability: ±25ppm) over the full temperature and voltage range, which is typical for a general-purpose oscillator driving a microcontroller or Ethernet PHY — for precision timing (e.g., IEEE 1588) a tighter ±10 ppm or ±20 ppm part would be specified.

Confirm current availability and pricing at RFQ.

Frequently asked questions

Is DSC1121CI2-045.0000 in stock at major distributors?

Buyers need immediate availability to avoid line-down situations or long lead times.

What is the current price of DSC1121CI2-045.0000?

Sourcing buyers compare prices across distributors to budget BOM costs.

What is the output type and supply voltage of DSC1121CI2-045.0000?

Design engineers must verify electrical compatibility with their circuit before layout.

Does DSC1121CI2-045.0000 have a direct replacement or equivalent part?

Maintenance techs and brokers need drop-in alternatives for obsolescence or multi-sourcing.

What is the operating temperature range for DSC1121CI2-045.0000?

Environmental requirements determine if the oscillator can be used in industrial or outdoor applications.

Can DSC1121CI2-045.0000 replace a standard quartz oscillator with same footprint?

Engineers and techs need to know pin-compatibility and timing accuracy when swapping technologies.