Add a real-time clock to your development or prototyping board with this DS1307-based RTC add-on board. Communicates with microcontrollers using I2C serial interface. Suitable for general prototyping and connects directly to solderless breadboards.
This RTC2 proto board provides a battery-backed real-time clock based on the DS1307 and interfaces to microcontrollers by I2C serial bus. The board is ideal for use with your own prototype circuits and plugs directly into solderless breadboards.
The DS1307 serial real-time clock (RTC) is a low-power, full binary-coded decimal (BCD) clock/calendar plus 56 bytes of non-volatile static RAM. Address and data are transferred serially through an I2C, bidirectional bus. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either 24-hour or 12-hour format with AM/PM indicator. The DS1307 has a built-in power-sense circuit that detects power failures and automatically switches to the backup supply. Timekeeping operation continues while the part operates from the backup supply.
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