Microchip DSC1121 series, XO (Standard), 20 MHz, CMOS output, MEMS resonator, 2.25V–3.6V supply, -55°C to 125°C, 6-VDFN exposed pad package, Tape & Reel
| Parameter | Value |
|---|---|
| Type | XO (Standard) |
| Series | DSC1121 |
| Mounting | Surface Mount |
| Voltage | 2.25V ~ 3.6V |
| Current - supply | 35mA |
| Frequency | 20 MHz |
| Frequency stability | ±50ppm |
| Operating temperature | -55°C~125°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) |
| Function | Enable/Disable |
| Base resonator | MEMS |
| Case | 6-VDFN Exposed Pad |
Supply voltage spans 2.25V to 3.6V — this covers both 2.5V and 3.3V logic rails without a separate regulator, and the wide tolerance means the oscillator stays in spec even if the rail droops under load. That qualifies it for avionics, downhole instrumentation, satellite payloads, and engine-bay electronics where a commercial or industrial temperature part would fail.
Yes — the base resonator is MEMS, not quartz. It offers better shock and vibration tolerance and faster start-up than a quartz-based XO.
The only difference is the output frequency — 20 MHz vs other fixed frequencies in the DSC1121 family. Package, supply range, temperature grade, and output type are identical across the series. The base product number DSC1121 covers all frequency options.