Real Time Clock is a low power, full BCD clock/ calendar plus 56 bytes of nonvolatile SRAM. Address and data are transferred serially via a 2-wire bi-directional 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 less than 31 days, including corrections for leap year. The clock operates at either the 24-hour or 12-hour format with AM/PM indicator. The DS1307 has a built-in power sense circuit which detects power failures and automatically switches to the battery supply.
e-Gizmo Real Time Clock DS1307 breakout board comes with an on-board 32.768 kHz crystal and back-up batteries. It provides a fast and convenient means of adding RTC function to any microcontroller circuit. 5V operation, I2C I/O.
|Functionality||Full BCD Clock / Calendar|
|Time Format||12hrs format or 24hrs format with AM/PM Indicator|