Clocking Structure

  • High-Precision Internal Oscillator Block (HFINTOSC):
    • Selectable frequencies up to 32 MHz
    • ±2% at calibration
    • Active Clock Tuning of HFINTOSC for improved accuracy
  • Internal 31 kHz Oscillator (LFINTOSC)
  • External 32 kHz Secondary Oscillator (SOSC)
  • External High-Frequency Clock Input:
    • Three Crystal/Resonator modes
    • Two External Clock (EC) Power modes
    • 4x PLL available for external sources
  • Fail-Safe Clock Monitor:
    • Allows for operational recovery if the external clock source stops
  • Oscillator Start-up Timer (OST):
    • Ensures the stability of crystal oscillator sources