CMEMS® Oscillator ICs Silicon Labs’ Si501/2/3/4 CMEMS® general-purpose oscillators are a perfect fit for low cost, high shock applications. Their single-chip construction provides lower cost, greater reliability, and better aging than traditional crystal oscillators of the same class. They are highly robust against shock and vibration, offer ±20 ppm frequency stability guaranteed for 10 years, and are drop-in compatible to traditional XOs in the same class. Browse standard configurations for the most popular CMEMS devices. If your device preference is not there, use the on-line configurator to get custom samples in less than 2 weeks. Or buy a Field Programming Kit to get samples any time you need them, right in your development lab.