Maxim Integrated DS1307S+ Real-Time Clock

The DS1307S+ from Maxim Integrated is a highly versatile, low-power serial real-time clock (RTC) with 56 bytes of nonvolatile static RAM. This integrated circuit (IC) provides a full binary-coded decimal (BCD) clock/calendar that is accessible through an I²C interface. Its precision capabilities make it a perfect fit for a wide array of applications, including embedded systems, consumer electronics, and office automation.

One of the key features of the DS1307S+ is its ability to maintain accurate timekeeping with minimal power consumption. It operates within the voltage range of 4.5V to 5.5V, and when powered down, it can continue to keep time with a battery backup supply as low as 2.0V. This feature ensures that devices using the DS1307S+ can preserve time settings even in the event of a primary power failure.

The clock/calendar functionality of the DS1307S+ includes seconds, minutes, hours, day, date, month, and year information, with automatic adjustments for months with fewer than 31 days and leap year compensation valid up to the year 2100. The timekeeping is accurate to within ±2ppm from 0°C to +40°C.

Another notable feature is the two programmable time-of-day alarms and a programmable square-wave output that can be used for various applications, including wake-up alarms or external interrupts. The device's 56 bytes of nonvolatile RAM offer additional storage space for data that must be preserved during power loss.

For ease of integration, the DS1307S+ is housed in an 8-pin SO (Small Outline) package, making it suitable for space-constrained applications. Its simple I²C interface allows for seamless integration with microcontrollers and other digital systems.

In summary, the Maxim Integrated DS1307S+ is a compact, full-featured real-time clock with nonvolatile RAM, offering high accuracy, low power consumption, and additional memory for critical data storage, making it an excellent choice for maintaining precise time and date in a variety of electronic applications.