The purpose of an RTC or a real time clock is to provide precise time and date which can be used for various applications. RTC is an electronic device in the form of an Integrated Chip (IC) available in various packaging options.
Built in frequency adjusted 32.768 kHz crystal unit
I2C-Bus interface
Low backup current 240 nA Typ. / 3 V
Automatically switches to backup power supply by monitoring the VDD voltage
Time stamp function
32 times max. stamped from year to 1/1024 seconds.
Built in frequency adjusted 32.768 kHz crystal unit
SPI-Bus interface 3 wire, 4 wire
Low backup current 240 nA Typ. / 3 V
Automatically switches to backup power supply by monitoring the VDD voltage
Time stamp function
32 times max. stamped from year to 1/1024 seconds.
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