DS1244W-120+ Nonvolatile RAM with Clock from Maxim Integrated

The DS1244W-120+ is a state-of-the-art nonvolatile RAM with a built-in real-time clock, designed and manufactured by Maxim Integrated. This innovative memory solution combines 1MB of static RAM with a full-function real-time clock, all in a single power-efficient package. The clock is fully integrated with the memory and keeps track of seconds, minutes, hours, days, date, month, and year information. Additionally, it accounts for leap years up to the year 2100.

One of the key features of the DS1244W-120+ is its nonvolatile (NV) attribute, which means that data is retained even when the primary power supply is turned off. This is made possible by an onboard lithium energy source that maintains data and clock operations when external power is absent. The device has an unlimited write cycle endurance for both the RAM and the real-time clock, ensuring data integrity and clock functionality over the entire operating range.

The DS1244W-120+ operates at a supply voltage of 4.5V to 5.5V and has an access time of 120ns, making it suitable for high-speed operations. It features a JEDEC standard 32-pin DIP (Dual Inline Package) that offers an easy-to-use, nonvolatile memory solution for data-critical applications. The device is also equipped with an automatic power-fail chip deselect and write protection, safeguarding the data from inadvertent corruption during power transitions.

Applications for the DS1244W-120+ range from industrial control systems, utility meters, and security systems to medical devices and network routers, where reliable and durable data storage is crucial. The integration of the clock and memory functions not only simplifies the design and reduces the component count but also enhances the reliability of the system by minimizing the number of interconnections.

With its robust design and integrated features, the DS1244W-120+ from Maxim Integrated is an excellent choice for designers looking for a reliable nonvolatile memory solution with an embedded real-time clock. Its long-term data retention, combined with high-speed operation and ease of integration, makes it a versatile component for a wide range of applications.