Maxim Integrated DS1557WP-120IND+ Nonvolatile Timekeeping RAM

The DS1557WP-120IND+ is a high-quality, robust nonvolatile timekeeping RAM module designed and manufactured by Maxim Integrated. This memory module combines a full-featured real-time clock (RTC) with a 2K x 8 nonvolatile static RAM and a crystal, all encapsulated in a durable 34-Pin PowerCap Module package. It is specifically engineered to withstand industrial temperature ranges, making it ideal for applications that operate under extreme conditions.

This product is designed to provide reliable timekeeping and data storage over a long period, with a battery life that typically lasts for more than 10 years. The built-in lithium energy source and the RTC maintain the time and date, even when the main power is turned off. The DS1557WP-120IND+ operates with a voltage range of 4.5V to 5.5V and features an active current of 15mA and a standby current of 500nA, ensuring low power consumption.

The RTC of the DS1557WP-120IND+ offers a full range of functions including seconds, minutes, hours, day, date, month, and year, with leap year compensation valid up to the year 2100. It also provides a programmable alarm and interrupt function, which can be set to trigger on a variety of events, making it a versatile component for time-critical applications.

With its integrated power-fail write-protection feature, the DS1557WP-120IND+ ensures that all data is retained in the event of a power loss. This makes it particularly suitable for mission-critical systems where data integrity is paramount. The nonvolatile nature of the static RAM means that data is not lost when power is removed, which is crucial for maintaining system state and historical information across power cycles.

Overall, the DS1557WP-120IND+ from Maxim Integrated is a highly reliable and secure choice for designers and engineers looking for a memory and real-time clock solution that can perform consistently in industrial environments. Its combination of durability, low power consumption, and comprehensive timekeeping features make it an indispensable component for a wide array of applications, including embedded systems, utility meters, industrial controllers, and other systems requiring a dependable time base and persistent memory storage.