I have been recently wanting to migrate to one of these mixed signal MCUs.

I was studying the Cygnal list of products. Quite an impressive list of packages.

There in the lsiting, there is a column "Internal Osc" and I could find values varying from +/- 20% for regulars to +/- 1.5% for the higher end fellows with on board CAN and USB.

Does it mean, that if I use a C8051F020 chip that has +/-20% accuracy, all the onboard timers will provide that kind of accuracy only ? I thought this is way too poor. Though I can compensate for this in software, is my assumption correct?

( The data sheet download is underway - but nothing like hearing it from the experts )

Thanks

Raghu