OM13517UL is a demonstration board for PCA21125. The PCA21125 is a CMOS 1 real-time clock (RTC) and calendar optimized for low power and operating temperature applications up to 125 °C. Data are transferred via the Serial Peripheral Interface (SPI bus) with a maximum data rate of 6.0 Mbit/s. Alarm and timer functions are also provided to generate wake-up signals on interrupt pins.
Blockdiagram
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