Microchip DSC1121CI2-055.0000, XO (Standard) MEMS oscillator, 55 MHz CMOS output, ±25 ppm frequency stability, 2.25V–3.6V supply, -40°C to 85°C, 6-VDFN package.
| Parameter | Value |
|---|---|
| Type | XO (Standard) |
| Series | DSC1121 |
| Mounting | Surface Mount |
| Supply voltage | 2.25V ~ 3.6V |
| Current - supply | 35mA |
| Current - supply (Disable) | 22mA |
| Frequency | 55 MHz |
| Frequency stability | ±25ppm |
| Operating temperature | -40°C ~ 85°C |
| Size (Dimension) | 0.126\" L x 0.098\" W (3.20mm x 2.50mm) |
| Height - seated | 0.035\" (0.90mm) |
| Output | CMOS |
| Package | Tube |
| Function | Enable/Disable |
| Base resonator | MEMS |
| Case | 6-VDFN |
The DSC1121CI2-055.0000 is a MEMS-based XO (Standard) from Microchip's DSC1121 series, delivering a 55 MHz CMOS output with ±25 ppm frequency stability across -40°C to 85°C. Its supply voltage range of 2.25V to 3.6V covers both 2.5V and 3.3V logic rails, so the same BOM line works across power domains without a dedicated LDO.
Yes — the MEMS resonator in the DSC1121CI2-055.0000 is a drop-in replacement for a 55 MHz quartz XO in the same 6-VDFN footprint. No external load capacitors are required, and the CMOS output is compatible with most logic families. The Enable/Disable pin may need a pull-up or pull-down depending on the original quartz part's function.