156.25 MHz MEMS clock with HCSL output
The DSC1124NI1-156.2500 is a Microchip MEMS-based XO (Standard) oscillator delivering a 156.25 MHz HCSL differential output — a common reference for PCIe Gen1/2/3, 10GbE, and serial backplane applications.
Supply flexibility and enable/disable
The supply voltage range spans 2.25V to 3.6V, so the same oscillator works on 2.5V and 3.3V rails without a separate regulator.
Housed in a 6-SMD, No Lead package measuring 7.00mm x 5.00mm with a seated height of 0.90mm — a standard footprint that matches many quartz oscillators, so a layout designed for a 7x5 mm can often accept this MEMS part without a board spin.
No direct pin-compatible replacement is listed, but the DSC1124 series shares the same footprint and supply range across multiple frequencies.