DS1307 Application Note

●The DS1307+ serial real-time clock is a low-power, full binary-coded decimal clock/calendar plus 56 bytes of NV SRAM. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted

● Programmable square-wave output signal

● Automatic power-fail detect and switch circuitry

● Consumes less than 500nA in battery-backup

● Mode with oscillator running