XOSC32K

Table 1. 32.768 kHz Crystal Oscillator (XOSC32K) Specifications
Symbol Description Min. Typ. ✝ Max. Unit Conditions
fXOSC32 Frequency 32.768 kHz  
CXTAL1/XTAL2 * Parasitic pin capacitance 5 pF  
CL * Crystal load capacitance 18 pF XOSC32KCTRLA.LPMODE = 0
8 pF XOSC32KCTRLA.LPMODE = 1
ESR * Equivalent Series Resistance 100 XOSC32KCTRLA.LPMODE = 0
50 XOSC32KCTRLA.LPMODE = 1
tXOSC32_ST * XOSC32 start-up time 300 ms XOSC32KCTRLA.LPMODE = 0
1000 ms XOSC32KCTRLA.LPMODE = 1

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.

* These parameters are characterized but not tested in production.