Ds1307 Schematic. The ds1307 serial real time clock rtc is a low power full binary coded decimal bcd clock calendar plus 56 bytes of nv sram. The ds1307 operates using i2c a serial interface.
Address and data are transferred serially through an i2c bidirectional bus. The ds1307 has 56 bytes of non volatile nv static ram sram. The module based on ds1307 the ds1307 serial real time clock rtc is a low power full binary coded decimal bcd clock calendar plus 56 bytes of nv sram.
Used with a backup battery it can keep track of date and time even when the main circuit power is removed.
The clock calendar provides seconds minutes hours day date month and year information. The clock calendar provides seconds minutes hours day date month and year information. The ds1307 operates using i2c a serial interface. Schematic for arduino digital clock with max7219 led matrix and ds1307 rtc one of the downsides of using the ds1307 rtc in our arduino digital clock is the external 32khz crystal for time keeping whose oscillation frequency is easily affected by external temperature.
