The DSC1001BI2-025.5500 is a 25.55 MHz MEMS-based XO (Standard) from Microchip's DSC1001 series, delivering a CMOS output across a 1.8V to 3.3V supply range — covering the three most common logic rails without a secondary regulator. The MEMS resonator construction gives it inherent shock and vibration tolerance compared to quartz, and the 6.3 mA max active current keeps the thermal contribution low in a dense 5.00 mm x 3.20 mm 4-SMD package.
Standby mode and supply current for battery-duty designs
No pin-compatible replacement or second-source is listed by Microchip; the DSC1001 series is the current production family. For new designs, the same base part number (DSC1001) with different frequency/stability options is the intended path.