25 MHz MEMS clock – AEC-Q100 for under-hood timing
The MEMS die is sealed in a 6-SMD, no-lead exposed-pad package measuring 7.00 mm × 5.00 mm, and delivers a CMOS output with Enable/Disable function.

Microchip DSC1121AI1-025.0000, 25 MHz XO (Standard), CMOS output, MEMS resonator, AEC-Q100 qualified, -40°C to 85°C, 2.25V-3.6V supply, 6-SMD package.
| Parameter | Value |
|---|---|
| Type | XO (Standard) |
| Series | DSC1121 |
| Mounting | Surface Mount |
| Voltage | 2.25V ~ 3.6V |
| Current - supply | 35mA |
| Current - supply (Disable) | 22mA |
| Frequency | 25 MHz |
| Frequency stability | ±50ppm |
| Operating temperature | -40°C ~ 85°C |
| Size (Dimension) | 0.276\" L x 0.197\" W (7.00mm x 5.00mm) |
| Height - seated | 0.035\" (0.90mm) |
| Output | CMOS |
| Ratings | AEC-Q100 |
| Function | Enable/Disable |
| Package | Tube |
| Base resonator | MEMS |
| Case | 6-SMD, No Lead Exposed Pad |
The MEMS die is sealed in a 6-SMD, no-lead exposed-pad package measuring 7.00 mm × 5.00 mm, and delivers a CMOS output with Enable/Disable function.
The DSC1121AI1-025.0000 is a MEMS-based XO, not a bare crystal. It provides a complete 25 MHz clock output with CMOS levels and Enable/Disable control, so it can replace a quartz oscillator module in the same footprint and supply voltage range. The MEMS construction offers improved shock and vibration tolerance compared to quartz.