The DSC1101DM5-025.0000: This is a 25 MHz XO (Standard) using a MEMS resonator instead of quartz — the MEMS die handles shock and vibration better than a crystal blank, which is why this part carries a -55°C to 125°C military temperature range. Output is CMOS, single-ended, compatible with most digital logic families. The supply voltage spans 2.25V to 3.6V, covering both 2.5V and 3.3V rails without a separate regulator.
Package and board-fit
Housed in a 6-VDFN package measuring 2.50mm x 2.00mm with a seated height of 0.90mm max.
Since the part is obsolete, new stock is not available from Microchip.