The DS1307 serial real-time clock (RTC) is a reliable timekeeping solution ideal for a wide range of applications. With its low-power consumption and full BCD clock/calendar functionality, it accurately tracks seconds, minutes, hours, dates, months, days of the week, and year. Featuring 56 bytes of NV SRAM and an I2C serial interface, it seamlessly integrates with most microcontrollers for easy setup and control. The DS1307 includes a built-in power-sense circuitry that detects power failures and automatically switches to the backup supply, ensuring uninterrupted operation. Its compact 8-pin DIP and 8-pin SO packages minimize required space, making it suitable for space-constrained designs. Additionally, the optional industrial temperature range support (-40°C to +85°C) allows for reliable performance in diverse environments. With its programmable square-wave output signal and UL recognition, the DS1307 RTC IC SMD offers versatile functionality and dependable timekeeping for various electronic systems and applications.