34.12.4 32.768 kHz Internal oscillator (OSC32K) Characteristics

Table 34-39. 32 kHz RC Oscillator Characteristics
Symbol Parameter Conditions Min. Typ. Max. Units
fOUT Output frequency Calibrated against a 32.768 kHz reference at 25°C, over [-40, +125]°C, over [2.7, 3.63]V 26.214 32.768 39.321 kHz
Calibrated against a 32.768 kHz reference at 25°C, at VDD = 3.3V 32.113 32.768 33.423
Calibrated against a 32.768 kHz reference at 25°C, over [2.7, 3.63]V 31.457 32.768 34.079
IOSC32K Current consumption - - 0.67 5 μA
tSTARTUP Startup time - - 1 2 cycle
Duty Duty Cycle - - 50 - %