This interface, BU9873, is a CMOS real-time clock. It is integrated with an interrupt generation function. It is configured to perform the serial transmission of calendar and time data to the CPU. It ...
The DS1308 serial real-time clock (RTC) is a low-power, full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV RAM. Address and data are transferred serially through an I²C interface. The ...