Technical summary
This product is a board based on the Maxim DS1307 integrated circuit.
The DS1307 is a low-power serial real-time clock (RTC) that provides binary-coded decimal (BCD) clock and calendar information.
The address and data are transferred serially over a bidirectional I2C bus.
The clock / calendar function provides seconds, minutes, hours, day, date, month, and year information. The end-of-month date is automatically adjusted for months with fewer than 31 days, including corrections for leap years. The clock operates in either 24-hour or 12-hour format with an AM / PM indicator.
The DS1307 includes a sensor that detects power failures and automatically switches to the backup supply.
An open-drain output signal is provided to produce a programmable clock at 1Hz, 4.096kHz, 8.192kHz, 32.768kHz; this function is very useful for synchronizing your application with the "reference second" or one of its multiples. This output can also be set to logic high or low through an internal register, allowing you to use this signal for debugging or test routines.
Three different locations are available for soldering the connector, and you can also choose to solder a straight or 90° connector: it gives you the possibility to position this RTC assembly as well as possible in your specific applications.
Its small size, low power and ease of use make this RTC module an ideal choice for implementing timekeeping systems in your DIY projects.
CR2012 battery included
