The PCF2131/PCA2131 is a CMOS real-time clock (RTC) module and calendar with an integrated temperature-compensated crystal (Xtal) oscillator (TCXO) and 32.768 kHz quartz crystal for extremely high-precision and ultra-low-power applications. PCF2131-ARD is used to evaluate the functionality and performance of PCF2131/PCA2131.
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