Oscillators16 MHz, ±20 PPM Crystal/Resonator Oscillator or External Clock (POSC) for 2.4G RF TransceiverShared System PLL with Bluetooth/Zigbee RF Data Converter PLL32.768 kHz Ultra-low Power Internal OscillatorHigher Accuracy 32.768 kHz, ±250 ppm Clock OptionsPOSC derived 32 kHz clock 32.768 kHz crystal/resonator oscillator (SOSC)External 32.768 kHz clock source8 MHz Internal RC Oscillator (FRC)
