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Microchip Technology DSC1121BI2-066.6666T — Crystals & Oscillators

DSC1121BI2-066.6666T Microchip MEMS Oscillator, 66.6666 MHz

MPNDSC1121BI2-066.6666T
Active

Microchip Technology DSC1121 series MEMS XO (Standard), 66.6666 MHz, CMOS output, ±25 ppm stability, 2.25V–3.6V supply, AEC-Q100 qualified, -40°C to 85°C, 6-SMD no-lead package.

Microchip Technology DSC1121BI2-066.6666T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1121BI2-066.6666T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Supply voltage2.25V ~ 3.6V
Current - supply35mA
Current - supply (Disable)22mA
Frequency66.6666 MHz
Frequency stability±25ppm
Operating temperature-40°C~85°C
Size (Dimension)0.197\" L x 0.126\" W (5.00mm x 3.20mm)
Height - seated0.035\" (0.90mm)
OutputCMOS
PackageTape & Reel (TR)
RatingsAEC-Q100
FunctionEnable/Disable
Base resonatorMEMS
Case6-SMD, No Lead

Product details

The DSC1121BI2-066.6666T is a MEMS-based XO (Standard) from Microchip's DSC1121 series, delivering a fixed 66.6666 MHz CMOS output with enable/disable function.

Supply voltage and frequency stability margins

The 2.25V to 3.6V supply range covers 2.5V and 3.3V rails without an external LDO, simplifying power distribution on multi-voltage boards.

Housed in a 6-SMD, no-lead package measuring 5.00mm x 3.20mm with a seated height of 0.90mm. The 0.197" x 0.126" footprint is a common MEMS oscillator land pattern — no via-in-pad required, and the 2.25V–3.6V supply means a single decoupling cap (0.1 µF) near the VDD pin is sufficient.

Frequently asked questions

What is the frequency of the DSC1121BI2-066.6666T?

The output frequency is 66.6666 MHz, a CMOS clock signal suitable for Ethernet, CAN, and general-purpose processor timing.

How can I get current pricing and availability for the DSC1121BI2-066.6666T?

Submit an RFQ through this page.