37.10.2 XOSC32K

Table 37-11. 32.768 kHz Crystal Oscillator (XOSC32K) Specifications
SymbolDescriptionMin.Typ. ✝Max.UnitConditions
fXOSC32Frequency—32.768—kHz
CXTAL1/XTAL2 *Parastatic pin capacitance—5—pF
CL *Crystal load capacitance18—pFXOSC32KCTRLA.LPMODE = 0
—8—pFXOSC32KCTRLA.LPMODE = 1
ESR *Equivalent Series Resistance—100—kΩXOSC32KCTRLA.LPMODE = 0
—50—kΩXOSC32KCTRLA.LPMODE = 1
tXOSC32_ST *XOSC32 start-up time—200—msXOSC32KCTRLA.LPMODE = 0
—1000—msXOSC32KCTRLA.LPMODE = 1

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

* These parameters are characterized but not tested in production.