STI offered this ability back in 2007. We tried it on Ethernet devices (15MHz) as a crystal replacement and it worked fine. Plus the drift over the expected lifetime was better than quartz. It was cost that was the hold-up.
Accuracy is not yet specified since actual production devices are not yet announced, but in testing IDT claims drift is just 2 PPM for pMEMS compared with 10 PPM for quartz after 1400 hours at 125 degrees C.
Replay available now: A handful of emerging network technologies are competing to be the preferred wide-area connection for the Internet of Things. All claim lower costs and power use than cellular but none have wide deployment yet. Listen in as proponents of leading contenders make their case to be the metro or national IoT network of the future. Rick Merritt, EE Times Silicon Valley Bureau Chief, moderators this discussion. Join in and ask his guests questions.