Microchip DSC400 series MEMS XO, 100 MHz × 3 HCSL outputs, ±50 ppm stability, 2.25 V–3.6 V supply, -40°C to 85°C, 20-VFQFN exposed-pad package, active production.
| Parameter | Value |
|---|---|
| Type | XO (Standard) |
| Series | DSC400 |
| Supply voltage | 2.25V ~ 3.6V |
| Frequency stability | ±50ppm |
| Frequency - output 1 | 100MHz |
| Frequency - output 2 | 100MHz |
| Frequency - output 3 | 100MHz |
| Operating temperature | -40°C~85°C |
| Height | 0.035\" (0.90mm) |
| Size (Dimension) | 0.197\" L x 0.126\" W (5.00mm x 3.20mm) |
| Output | HCSL |
| Package | Tape & Reel (TR) |
| Function | Enable/Disable |
| Base resonator | MEMS |
| Case | 20-VFQFN Exposed Pad |
HCSL (High-Speed Current Steering Logic) is the common reference clock standard for PCIe interfaces — this part directly drives the differential clock inputs on a PCIe switch or root complex without external level translation.
Operates from 2.25 V to 3.6 V, covering the common 2.5 V and 3.3 V rail voltages used in networking and industrial logic.
HCSL (High-Speed Current Steering Logic) — the differential output standard used for PCIe reference clocks. It directly drives a PCIe clock input without external translation.