Maxim Integrated DS1742W-150+ Nonvolatile Timekeeping RAM

The Maxim Integrated DS1742W-150+ is a state-of-the-art nonvolatile timekeeping RAM that combines a full-featured real-time clock (RTC) and 2K x 8 nonvolatile static RAM in a single package. Designed to be highly durable and reliable, it serves as an ideal solution for applications requiring accurate timekeeping and data storage that must be preserved across power cycles.

This robust component is encased in a 24-pin EDIP (Extended DIP) package, ensuring easy integration into a wide array of systems. It operates over an industrial temperature range of -40°C to +85°C, making it suitable for use in environments that experience extreme conditions. The DS1742W-150+ is particularly well-suited for applications in networking, telecommunications, embedded systems, and other industrial applications where maintaining accurate time and data integrity is crucial.

Key features of the DS1742W-150+ include:

• Integrated Real-Time Clock: The device boasts a full-function RTC, which includes a quartz crystal that maintains accurate timekeeping, along with a programmable alarm and interrupt functions to support complex time-based operations.
• Nonvolatile RAM: With 2KB of nonvolatile static RAM, the DS1742W-150+ ensures that data is retained even when the main power supply is lost. This is particularly important for critical data logging and system state information.
• Lithium Energy Source: An embedded lithium energy source provides reliable backup power to the RTC and RAM, ensuring data and time settings are maintained for over 10 years in the absence of primary power.
• Watchdog Timer: A programmable watchdog timer enhances system reliability by initiating system resets or other corrective actions if the system becomes unresponsive or deviates from expected operation.
• Simple Integration: The DS1742W-150+ is designed for direct connection to a microprocessor bus, allowing for straightforward integration without the need for additional interfacing components.

The DS1742W-150+ from Maxim Integrated is a versatile and reliable component that ensures long-term data and time retention, critical for systems that cannot afford to lose such information. Its blend of nonvolatile memory and precise timekeeping capabilities make it a top choice for designers looking to enhance the reliability and functionality of their systems.