Maxim Integrated DS1672-2 Low-Voltage Serial Timekeeping Chip

The Maxim Integrated DS1672-2 is a robust, low-voltage serial timekeeping chip that offers a full binary-coded decimal (BCD) clock and calendar optimized for low power consumption and compact design. This integrated circuit is particularly well-suited for applications in portable devices, data loggers, and other systems where space is at a premium and energy efficiency is of utmost importance.

One of the key features of the DS1672-2 is its ability to operate over a wide voltage range of 2.5V to 5.5V, making it versatile for various power supply configurations. The device incorporates a real-time clock/calendar that tracks time in hours, minutes, and seconds, as well as the day, month, and year. The accuracy of the timekeeping is maintained within the specified temperature range, ensuring reliable performance in diverse operating conditions.

The DS1672-2 communicates with a microprocessor via a simple serial interface, which is compatible with most SPI and I2C interfaces. This serial communication allows for easy integration into existing systems without the need for complex wiring or additional components.

Additionally, the DS1672-2 features an integrated oscillator that requires only an external crystal to function. This integration reduces the number of external components necessary for operation, further simplifying the design and reducing the overall bill of materials for the product.

Designed with longevity in mind, the DS1672-2 has a built-in power-fail detect circuit that stamps the time the power failure occurred, providing valuable data for diagnostic and recovery processes. The device also includes an automatic leap year compensation valid up to the year 2100, ensuring that the timekeeping remains accurate without manual adjustments for leap years.

With its compact 8-pin SO (small outline) package, the Maxim Integrated DS1672-2 is an excellent choice for designers looking for a reliable and space-efficient timekeeping solution. Whether used in consumer electronics, industrial systems, or IoT devices, the DS1672-2 provides precise time and date information, ensuring your application keeps accurate time, all the time.