17.2 Features

The following are key features of the OSC32KCTRL:

  • 32.768 kHz Crystal Oscillator (XOSC32K)
    • Programmable start-up time
    • Crystal or external input clock on XIN32 I/O
    • Clock failure detection with safe clock switch
    • Clock failure event output
  • 32.768 kHz Ultra Low-Power Internal Oscillator (OSCULP32K)
    • Ultra low-power, always-on oscillator
    • Frequency fine tuning
  • Calibration value loaded from Flash factory calibration at Reset
  • 1.024 kHz clock outputs available