Maxim Integrated DS1742W-150 Nonvolatile Timekeeping RAM

The DS1742W-150 is a high-quality, durable nonvolatile timekeeping RAM module from Maxim Integrated, designed to provide a reliable solution for systems requiring both battery-backed SRAM and an integrated real-time clock (RTC) in a single package. This component is particularly suited for applications where long-term data retention and accurate timekeeping are critical, such as in industrial control systems, utility meters, and other embedded systems.

At the heart of the DS1742W-150 is a 2K x 8 nonvolatile static RAM and a full-function real-time clock, which includes a quartz crystal and a lithium energy source. The RTC keeps track of hundredths of seconds, seconds, minutes, hours, days, date of the month, months, and years, and it is able to manage leap years up to the year 2100. This comprehensive timekeeping feature set ensures that the DS1742W-150 can meet the needs of a wide array of time-sensitive applications.

The module comes in a 24-pin EDIP (Extended DIP) package, which is encapsulated to protect the integrated circuit and the onboard quartz crystal from environmental factors, enhancing its reliability and longevity. The encapsulation also includes a lithium battery that has a lifespan of over 10 years, ensuring that data is retained and the clock continues to function even when the main power supply is lost.

Furthermore, the DS1742W-150 features a fully accessible 2K x 8 static RAM, which can be easily accessed via a standard JEDEC memory interface. The nonvolatile feature of the RAM is ensured by the automatic switch-over to battery power when external power is lost, which prevents data loss and maintains the integrity of the stored information.

With its wide operating temperature range of -40°C to +85°C, the DS1742W-150 is suitable for deployment in harsh environments, ensuring consistent performance regardless of external conditions. Maxim Integrated's commitment to high-quality components makes the DS1742W-150 a reliable and essential component for mission-critical applications where data and time must be preserved without fail.

Overall, the DS1742W-150 from Maxim Integrated is a robust, versatile, and essential component for systems that demand accurate timekeeping and data retention without the need for an external battery or additional RTC circuitry.