Ultra Low Power Internal 32kHz RC Oscillator (OSCULP32K) Characteristics

Table 1. Ultra Low Power Internal 32kHz RC Oscillator Characteristics
Symbol Parameter Conditions Min. Typ. Max. Units
fOUT Output frequency Calibrated against a 32.768kHz reference at 25°C, over [-40, +85]C, over [1.62, 3.63]V 25.559 32.768 38.011 kHz
Calibrated against a 32.768kHz reference at 25°C, at VDD = 3.3V 31.293 32.768 34.570
Calibrated against a 32.768kHz reference at 25°C, over [1.62, 3.63]V 31.293 32.768 34.570
IOSCULP32K(1)(2)     - - 125 nA
tSTARTUP Startup time   - 10 - cycles
Duty Duty Cycle   - 50 - %

Notes: 1. These values are based on simulation. These values are not covered by test limits in production or characterization.

2. This oscillator is always on.