Microchip DSC12X1 series, XO (Standard), 38 MHz, CMOS output, ±20 ppm stability, AEC-Q100 qualified, 6-VDFN surface-mount package, 2.5 V to 3.3 V supply.
| Parameter | Value |
|---|---|
| Type | XO (Standard) |
| Series | DSC12X1 |
| Mounting | Surface Mount |
| Supply voltage | 2.5V ~ 3.3V |
| Current - supply | 27mA (Typ) |
| Current - supply (Disable) | 23mA (Typ) |
| Frequency | 38 MHz |
| Frequency stability | ±20ppm |
| 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 | Tube |
| Ratings | AEC-Q100 |
| Function | Enable/Disable |
| Base resonator | MEMS |
| Case | 6-VDFN |
The DSC1221NE3-38M00000 is a 38 MHz MEMS-based XO (Standard) from Microchip's DSC12X1 series, delivering a CMOS output with ±20 ppm frequency stability across its -20°C to 70°C operating range.
No external LDO needed if the rail is within this band. Housed in a 6-VDFN package measuring 7.00 mm x 5.00 mm x 0.90 mm, the land pattern matches standard 6-pin DFN footprints.
Yes, it carries AEC-Q100 qualification, meaning it has passed the automotive reliability stress tests (temperature cycling, ESD, latch-up) required for Tier-1 ECU programs. Note the operating temperature range is -20°C to 70°C, so it suits cabin or climate-controlled modules, not under-hood environments above 70°C.
Frequency stability is ±20 ppm across the -20°C to 70°C range. This is a standard grade for automotive CAN, Ethernet, and sensor timing — sufficient for most 38 MHz clock trees without external trimming.