Microchip DSC1121AE1-125.0000T, XO (Standard) MEMS oscillator, 125 MHz CMOS output, ±50 ppm stability, 2.25V–3.6V supply, AEC-Q100 qualified, 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 | 125 MHz |
| Frequency stability | ±50ppm |
| Operating temperature | -20°C~70°C |
| Size (Dimension) | 0.276\" L x 0.197\" W (7.00mm x 5.00mm) |
| Height - seated | 0.035\" (0.90mm) |
| Output | CMOS |
| Package | Tape & Reel (TR) |
| Ratings | AEC-Q100 |
| Function | Enable/Disable |
| Base resonator | MEMS |
| Case | 6-SMD, No Lead Exposed Pad |
The supply voltage range of 2.25V to 3.6V covers both 2.5V and 3.3V rails, so it fits into a mixed-voltage system without a dedicated regulator. The 6-SMD package with exposed pad measures 7.00 mm x 5.00 mm and sits 0.90 mm high — a standard footprint shared by many 7x5 mm oscillators.
The evidence does not list a DSC1121BE1 variant. Within the DSC1121 family, the suffix typically denotes frequency, stability grade, or temperature range — confirm the exact order code against your BOM. The base product number is DSC1121.
Yes, if the board is designed for a 7x5 mm 6-SMD oscillator with CMOS input. The MEMS resonator offers better shock resistance and faster start-up than quartz, but check that the ±50 ppm stability and 2.25-3.6V supply range match your original quartz part's specifications.
Yes. The supply voltage range of 2.25V to 3.6V includes 3.3V, and the CMOS output swings rail-to-rail, so it directly drives 3.3V logic inputs without level translation.