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Microchip Technology DSC1121AI2-020.0000T — Crystals & Oscillators

DSC1121AI2-020.0000T MEMS XO 20 MHz CMOS - Microchip Active

MPNDSC1121AI2-020.0000T
Active

Microchip DSC1121 series MEMS XO (Standard), 20 MHz CMOS output, ±25 ppm stability, 6-SMD No Lead Exposed Pad package, -40°C to 85°C operation.

$1.0800Ref. price · indicative, final on quote
Microchip Technology DSC1121AI2-020.0000T datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1121AI2-020.0000T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Voltage2.25V ~ 3.6V
Current - supply35mA
Current - supply (Disable)22mA
Frequency20 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-SMD, No Lead Exposed Pad

Product details

MEMS resonator replaces quartz — what that means for your board

This DSC1121AI2-020.0000T is a standard XO (oscillator) built around a MEMS resonator rather than a quartz crystal — the base resonator type is MEMS. That gives it better shock and vibration immunity than a quartz-based can, and the frequency is set at the factory, so there is no load-cap tuning on your board.

The supply voltage spans 2.25V to 3.6V — it sits comfortably on a 3.3V or 2.5V rail and tolerates the ripple from a nearby buck converter. Frequency stability is ±25 ppm across the full temperature and voltage range. For a 20 MHz clock, that is ±500 Hz of drift — tight enough for a UART baud-rate generator or a basic MCU clock, but not rated for a precision Ethernet PHY reference.

Product status is Active per Microchip. That means you can design it in today without planning a last-time-buy or a board spin for a successor.

Frequently asked questions

How can I order DSC1121AI2-020.0000T or get a price?

Submit an RFQ through the storefront and we will respond with a firm quote and lead time.

What is the output type and package of DSC1121AI2-020.0000T?

The output is CMOS, single-ended, which drives most digital logic inputs directly. The package is a 6-SMD with no lead and an exposed pad (7.00 mm x 5.00 mm footprint, 0.90 mm seated height). The exposed pad should be soldered to a ground plane for thermal relief.

Is DSC1121AI2-020.0000T pin-compatible with quartz-based oscillators in the same footprint?

The 6-SMD, 7.00 mm x 5.00 mm footprint is a standard industry size shared by many quartz and MEMS oscillators. However, the Enable/Disable function (pin 1) and the supply voltage range (2.25V–3.6V) must match your board's logic — verify the function table in the datasheet before substituting a different part number.