35.10.2 XOSC32K

Table 35-11. 32.768 kHz Crystal Oscillator (XOSC32K) Specifications
SymbolDescriptionMin.Typ. ✝Max.UnitConditions
fXOSC32Frequency—32.768—kHz
CXTAL1/XTAL2Parasitic pin capacitance—5—pF
CLCrystal load capacitance—24—pFXOSC32KCTRLA.PMODE = 0x2
—12.5—pFXOSC32KCTRLA.PMODE = 0x1
—8—pFXOSC32KCTRLA.PMODE = 0x0
ESREquivalent Series Resistance—100—kΩXOSC32KCTRLA.PMODE = 0x2
—70—kΩXOSC32KCTRLA.PMODE = 0x1
—50—kΩXOSC32KCTRLA.PMODE = 0x0
tXOSC32_ST*XOSC32 Start-up time—< 200—msXOSC32KCTRLA.PMODE = 0x2
—< 1000—msXOSC32KCTRLA.PMODE = 0x1
—< 1000—msXOSC32KCTRLA.PMODE = 0x0

✝ Data 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.

* Dependent on crystal type and external components.