Maxim Integrated DS1642-120 Nonvolatile Timekeeping RAM

The DS1642-120 from Maxim Integrated is a state-of-the-art, nonvolatile timekeeping RAM module that seamlessly combines a full-featured real-time clock (RTC) and a 2K x 8 static RAM. Designed to provide both timekeeping and memory functions in a single package, this device is ideal for applications that require reliable timekeeping and data storage without the risk of data loss due to power failures.

At the heart of the DS1642-120 is an advanced RTC that maintains seconds, minutes, hours, day, date, month, and year information. The clock can automatically adjust for months with fewer than 31 days, including leap year compensation valid up to the year 2100. This precision ensures that timekeeping is accurate and consistent, making it an excellent choice for systems that cannot afford to lose temporal accuracy.

The integrated 2KB SRAM provides a convenient nonvolatile storage solution. This memory is maintained by an onboard lithium energy source that can sustain the RAM and real-time clock for over 10 years in the absence of external power. The nonvolatile aspect of the DS1642-120 means that data is not lost when the device is powered down, which is crucial for maintaining critical data integrity across power cycles.

Featuring a simple parallel interface for easy integration into existing systems, the DS1642-120 is housed in a 24-pin EDIP or JEDEC standard 28-pin DIP package, making it compatible with a wide range of applications. Its robust design ensures that it can operate over a temperature range of -40°C to +85°C, providing reliable performance even in extreme conditions.

Applications for the DS1642-120 are diverse and include industrial control systems, utility meters, POS terminals, and medical devices. Its combination of reliable timekeeping and secure data storage makes it an invaluable component for systems that require long-term, maintenance-free operation.

Overall, the DS1642-120 from Maxim Integrated represents a smart integration of timekeeping and memory functions, delivering a compact, power-efficient solution for a multitude of time-sensitive and data-critical applications.