Maxim Integrated DS1337S+ Real-Time Clock

The DS1337S+ from Maxim Integrated is a highly accurate, serial real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. This RTC provides a full binary-coded decimal (BCD) clock/calendar that is accessible through an I2C serial interface. The DS1337S+ is designed to address the needs of a wide array of applications requiring precise time-keeping and control, such as data loggers, servers, and various other industrial and consumer products.

One of the key features of the DS1337S+ is its dual alarm functionality, which allows for the setting of two separate alarms that can be programmed to trigger on a minute, hour, day, or date basis. This flexibility makes it particularly useful for scheduling future events or reminders. Additionally, the device includes a programmable square-wave output that can be used for various applications, including watchdog timers or event counters.

The DS1337S+ ensures high reliability and accuracy with its integrated crystal and TCXO, which minimize the drift typically associated with temperature fluctuations. This results in a timekeeping accuracy of ±2ppm from 0°C to +40°C. The device also features a battery-backed non-volatile (NV) RAM that preserves the stored data and settings in the event of a power failure, ensuring that the clock continues to maintain the correct time and date.

Designed for versatility, the DS1337S+ operates over a wide voltage range of 2.3V to 5.5V and is available in a compact, surface-mount 8-pin SO package. This makes it easy to integrate into various designs without requiring significant board space. Furthermore, the device's low power consumption is ideal for battery-powered applications, helping to extend the life of the product.

The Maxim Integrated DS1337S+ is a robust and reliable choice for designers looking to incorporate a feature-rich real-time clock in their systems. With its precision, programmability, and small footprint, it provides a comprehensive timekeeping solution that meets the demands of modern electronic applications.