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Microchip Technology DSC1221DA3-21M00000T — Crystals & Oscillators

DSC1221DA3-21M00000T MEMS XO – 21 MHz, AEC-Q100, CMOS Output

MPNDSC1221DA3-21M00000T
Active

Microchip DSC12X1 series MEMS XO, 21 MHz, CMOS output, ±20 ppm stability, AEC-Q100 qualified, 6-VDFN package, -40°C to 125°C operating range.

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

Specifications

DSC1221DA3-21M00000T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC12X1
MountingSurface Mount
Voltage2.25V ~ 3.63V
Current - supply27mA (Typ)
Current - supply (Disable)23mA (Typ)
Frequency21 MHz
Frequency stability±20ppm
Operating temperature-40°C~125°C
Size (Dimension)0.098\" L x 0.079\" W (2.50mm x 2.00mm)
Height - seated0.035\" (0.90mm)
OutputCMOS
PackageTape & Reel (TR)
RatingsAEC-Q100
FunctionEnable/Disable
Base resonatorMEMS
Case6-VDFN

Product details

Automotive-grade MEMS oscillator for harsh environments

The DSC1221DA3-21M00000T: AEC-Q100 qualification means this oscillator has passed the reliability stress tests required for under-hood and chassis-domain electronics — engine control units, transmission sensors, and ADAS modules where a quartz crystal might suffer from shock or vibration.

Supply flexibility and enable/disable control

Operating from a 2.25V to 3.63V supply, the oscillator can be powered directly from a 2.5V, 3.0V, or 3.3V rail without an intermediate regulator — useful for mixed-voltage designs where the clock rail is shared with the MCU or transceiver. The enable/disable function lets the system gate the clock output for power saving or test modes; when disabled, the supply current drops to 23 mA typ, which is still relatively high — this is a power-on gating feature, not a deep-sleep trick.

Housed in a 6-VDFN package measuring 2.50 mm x 2.00 mm with a seated height of 0.90 mm, this oscillator fits space-constrained automotive modules like radar sensors or camera ECUs where board real estate is at a premium.

Frequently asked questions

What is the output type and frequency stability of the DSC1221DA3-21M00000T?

The output is CMOS, which interfaces directly with most MCU and FPGA clock inputs without external level translation.