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Microchip Technology DSC1121AL5-022.5792T — Crystals & Oscillators

DSC1121AL5-022.5792T – 22.5792 MHz MEMS XO, CMOS

MPNDSC1121AL5-022.5792T
Active

Microchip DSC1121AL5-022.5792T, XO (Standard) 22.5792 MHz, CMOS output, ±10 ppm stability, 2.25V–3.6V supply, -40°C to 105°C, MEMS resonator, 6-SMD package, Tape & Reel.

Microchip Technology DSC1121AL5-022.5792T datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DSC1121AL5-022.5792T specifications
ParameterValue
TypeXO (Standard)
SeriesDSC1121
MountingSurface Mount
Voltage2.25V ~ 3.6V
Current - supply22mA
Frequency22.5792 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

22.5792 MHz MEMS clock source for industrial timing

The DSC1121AL5-022.5792T is a surface-mount XO (Standard) from Microchip's DSC1121 series, delivering a 22.5792 MHz CMOS clock from a MEMS resonator rather than a quartz crystal. With ±10 ppm frequency stability and a 2.25V to 3.6V supply range, this oscillator covers the common 2.5V and 3.3V logic rails without an extra regulator — a single BOM line serves both voltage domains.

Microchip lists the DSC1121AL5-022.5792T as Active — no EOL notice, no last-time-buy window. Supplied on Tape & Reel (TR), the 6-SMD, No Lead package reflows on a standard lead-free profile with no special handling beyond the usual MSL precautions for a MEMS device.

MEMS vs quartz — the shock and start-up advantage

The MEMS base resonator is inherently more resistant to shock and vibration than a quartz crystal — relevant for portable instruments, automotive modules, or any assembly that sees mechanical stress during shipping or operation. Enable/Disable function (pin 1) lets the system shut off the oscillator for power saving without removing the supply rail — a common requirement in battery-powered or thermal-constrained designs.

Frequently asked questions

Can DSC1121AL5-022.5792T replace a standard quartz oscillator at 22.5792 MHz?

Yes, if the board is laid out for a 6-SMD, No Lead footprint and the supply voltage falls within 2.25V to 3.6V. The CMOS output is compatible with most digital clock inputs. The MEMS resonator offers better shock tolerance and faster start-up than a quartz equivalent, but the electrical interface is the same.

Is DSC1121AL5-022.5792T available in tape and reel?

Yes — the package option is Tape & Reel (TR), which is the standard delivery format for automated pick-and-place assembly.