DSC1001BI2-042.5000T MEMS Oscillator – 42.5 MHz, AEC-Q100

The DSC1001BI2-042.5000T is a standard XO (oscillator) built on a MEMS resonator rather than a quartz crystal — the MEMS structure gives it better shock and vibration tolerance than a quartz oscillator, and the frequency is factory-programmed to 42.5 MHz with a CMOS output.

When the standby (power-down) pin is asserted, the oscillator draws a maximum of 15 µA — low enough that a battery-backed real-time clock domain can keep the oscillator off until a wake event, saving the 7.2 mA active supply current. The 7.2 mA max supply current at 42.5 MHz is typical for a MEMS oscillator at this frequency; the CMOS output swings rail-to-rail, so no external termination resistor is needed for short PCB traces.