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Microchip Technology DSC1121AM1-027.0000 — Crystals & Oscillators

DSC1121AM1-027.0000 MEMS XO – 27 MHz, CMOS, -55°C to 125°C

MPNDSC1121AM1-027.0000
Active

Microchip DSC1121AM1-027.0000, a 27 MHz MEMS-based XO (Standard) with CMOS output, 2.25V–3.6V supply, ±50 ppm stability, Enable/Disable function, in a 6-VDFN Exposed Pad package, rated -55°C to 125°C.

Microchip Technology DSC1121AM1-027.0000 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1121AM1-027.0000 specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Voltage2.25V ~ 3.6V
Current - supply35mA
Frequency27 MHz
Frequency stability±50ppm
Operating temperature-55°C ~ 125°C
Size (Dimension)0.276\" L x 0.197\" W (7.00mm x 5.00mm)
Height - seated0.035\" (0.90mm)
OutputCMOS
PackageTube
FunctionEnable/Disable
Base resonatorMEMS
Case6-VDFN Exposed Pad

Product details

MEMS oscillator for harsh-environment timing

The DSC1121AM1-027.0000 is a 27 MHz MEMS-based XO (Standard) from Microchip's DSC1121 series, delivering a CMOS output across a 2.25V to 3.6V supply range with ±50 ppm frequency stability.

Supply rail flexibility and enable/disable control

The 2.25V to 3.6V supply range lets the same part run off a 2.5V or 3.3V rail without a separate LDO — one BOM line covers both logic domains. Maximum supply current is 35 mA — this is the worst-case draw at the highest frequency and lowest supply voltage; actual consumption at 27 MHz and 3.3V is lower, but budget the 35 mA ceiling for the power tree.

Housed in a 6-VDFN Exposed Pad package, measuring 7.00 mm x 5.00 mm with a seated height of 0.90 mm. Surface-mount — standard reflow profile for a VDFN; no special bake-out required if the reel is within the floor-life window.

Frequently asked questions

Where can I buy the DSC1121AM1-027.0000 and how is it quoted?

The DSC1121AM1-027.0000 is an active Microchip product. We source it through independent distribution and quote to order against your BOM line quantity.

What is the function of the enable/disable pin on the DSC1121?

The Enable/Disable pin puts the CMOS output into a high-impedance state when pulled low (or high, depending on the logic level defined in the datasheet). This lets the system gate the clock to a peripheral or reduce power without removing the supply rail — the oscillator core keeps running, but the output stage is tri-stated.