38.5.1.2 XOSC32K

Table 38-11. 32.768 kHz Crystal Oscillator (XOSC32K) Specifications
SymbolDescriptionMin.Typ. ✝Max.UnitConditions
fXOSC32Frequency32.768kHz
CXTAL1/XTAL2 *Parasitic pin capacitance5pF
CL *Crystal load capacitance18pFXOSC32KCTRLA.LPMODE = 0
8pFXOSC32KCTRLA.LPMODE = 1
ESR *Equivalent Series Resistance100XOSC32KCTRLA.LPMODE = 0
50XOSC32KCTRLA.LPMODE = 1
tXOSC32_ST *XOSC32 start-up time300msXOSC32KCTRLA.LPMODE = 0
1000msXOSC32KCTRLA.LPMODE = 1

Data found in the “Typ.” column is at TA = 25°C and VDD = 3.0V unless otherwise specified. These parameters are not tested and are for design guidance only.

* These parameters are characterized but not tested in production.