12.3.4.1.1 Internal High-Frequency Oscillator (OSCHF)

The OSCHF supports output frequencies of up to 20 MHz. It can be used as the main clock (CLK_MAIN) and clock source for the real-time counter (CLK_RTC). The output frequency of the OSCHF can be tuned either manually or automatically against an external oscillator.

Refer to Electrical Characterization for tuning ranges and oscillator specifications.