It's a DS1307- Real Time Clock Module. It is RTC based module which Consumes less than 500nA in battery backup mode with oscillator running. The module comes fully assembled and pre-programmed with the current time.
Features
- DS1307 based RTC Module.
- 1Hz output pin.
- Consumes less than 500nA in battery backup mode with oscillator running
- Underwriters Laboratory (UL) recognized
- Real-time clock (RTC) counts seconds, minutes, hours, date of the month, month, day of the week, and year with leap-year compensation valid up to 2100
- 56-byte non-volatile RAM for data storage
- 56 Bytes of Non-volatile memory available to the user.
- The DS1307 is accessed via the I2C protocol.
- The module comes fully assembled and pre-programmed with the current time.
