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Microchip Technology DSC1121AL5-170.0000T — Crystals & Oscillators

DSC1121AL5-170.0000T XO Oscillator 170 MHz CMOS MEMS -

MPNDSC1121AL5-170.0000T
Active

Microchip Technology DSC1121AL5-170.0000T, XO (Standard) MEMS oscillator, 170 MHz CMOS output, 2.25V~3.6V supply, ±10ppm stability, -40°C~105°C, 6-SMD package

Microchip Technology DSC1121AL5-170.0000T datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1121AL5-170.0000T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Voltage2.25V ~ 3.6V
Current - supply22mA
Frequency170 MHz
Frequency stability±10ppm
Operating temperature-40°C~105°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

Product details

170 MHz MEMS clock source for industrial boards

The 6-SMD, no-lead package measures 7.00mm x 5.00mm with a seated height of 0.90mm, fitting standard oscillator footprints for high-speed clock distribution.

Enable/Disable function and MEMS reliability

An integrated Enable/Disable pin lets the system shut down the output for power savings or test isolation — useful in multi-clock designs where unused oscillators must be tri-stated. The MEMS base resonator withstands higher shock and vibration than a quartz crystal, which matters for equipment shipped in rugged enclosures or mounted near motors and fans.

Listed as Active by Microchip Technology, the DSC1121AL5-170.0000T is a current-production part suitable for new designs and ongoing BOM replenishment.

Frequently asked questions

Is the DSC1121AL5-170.0000T a MEMS oscillator?

Yes, the base resonator is MEMS, not quartz. This gives improved shock and vibration tolerance compared to a conventional crystal oscillator, and the start-up time is typically faster.

Does the DSC1121AL5-170.0000T have an enable/disable function?

Yes, it includes an Enable/Disable pin. When the pin is driven low, the output goes into a high-impedance state, allowing the oscillator to be gated off for power savings or test access without removing the supply.

What is the frequency stability of the DSC1121AL5-170.0000T?

Frequency stability is specified at ±10ppm over the operating temperature range and supply voltage variation. This is tight enough for most Ethernet, FPGA reference, and processor clock applications that do not require a TCXO or OCXO.

Is the DSC1121AL5-170.0000T compatible with 3.3V logic?

Yes. The 2.25V-to-3.6V supply range includes 3.3V, and the CMOS output swings rail-to-rail, so it drives 3.3V logic inputs directly.