10.5 Internal Fast RC (FRC) Oscillator

The dsPIC33CK512MPT608 family devices contain one instance of the internal Fast RC (FRC) Oscillator. The FRC Oscillator provides a nominal 8 MHz clock without requiring an external crystal or ceramic resonator, which results in system cost savings for applications that do not require a precise clock reference.

The application software can tune the frequency of the oscillator using the FRC Oscillator Tuning bits (TUN[5:0]) in the FRC Oscillator Tuning register (OSCTUN[5:0]).