Microchip DSC1121 series MEMS XO (Standard), 18.432 MHz, CMOS output, AEC-Q100 qualified, -40°C to 85°C, 2.25V to 3.6V supply, Enable/Disable function, 6-SMD no lead 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 | 18.432 MHz |
| Frequency stability | ±25ppm |
| 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 |
| Package | Tape & Reel (TR) |
| Ratings | AEC-Q100 |
| Function | Enable/Disable |
| Base resonator | MEMS |
| Case | 6-SMD, No Lead |
The wide supply range of 2.25V to 3.6V lets it run directly from a 2.5V or 3.3V rail without an extra LDO, simplifying the power tree in space-constrained designs.
Housed in a 6-SMD, no-lead package measuring 7.00 mm x 5.00 mm with a seated height of 0.90 mm, the footprint matches standard 7x5 mm XO land patterns, so a layout designed for a quartz oscillator can accept this MEMS part without a board spin.
Yes, it carries AEC-Q100 rating, meaning it has passed automotive-grade stress tests including temperature cycling, ESD, and latch-up — suitable for under-hood and cabin electronics where reliability is critical.
Yes, the Enable/Disable pin allows the output to be gated. When disabled, the maximum supply current drops to 22 mA, supporting power-save modes.