Maxim Integrated DS1743P-100 Nonvolatile Timekeeping RAM

The Maxim Integrated DS1743P-100 is a state-of-the-art, nonvolatile timekeeping RAM that combines a full-featured real-time clock and a 256k x 8 nonvolatile static RAM in one compact package. This innovative product is designed to provide reliable timekeeping and data storage even when the primary power source is interrupted, making it an ideal solution for a wide range of applications in telecommunications, industrial systems, and embedded computing.

At the heart of the DS1743P-100 is a quartz crystal-controlled real-time clock (RTC) that ensures accurate timekeeping. It tracks time with precision in hours, minutes, and seconds, and the date is managed with day, month, year, and day-of-the-week information. The RTC functionality is complemented by an integrated lithium energy source and control circuitry, which ensures that timekeeping and RAM data are maintained for over 10 years in the absence of external power.

The nonvolatile static RAM provides 256k x 8 bits of memory, which is protected during power loss by an automatic switch to the onboard lithium battery. The seamless transition between power modes ensures that data integrity is preserved without any user intervention. The DS1743P-100 also features a write protection mechanism, which can be enabled to prevent accidental data alteration during periods of power instability.

Designed with versatility in mind, the DS1743P-100 offers a simple, parallel interface for easy integration into a variety of systems. Its 28-pin, 600-mil DIP package allows for straightforward PCB layout and compatibility with standard sockets, making it a convenient choice for both new designs and legacy system upgrades. The device operates over an industrial temperature range, ensuring reliable performance in even the most demanding environments.

Overall, the Maxim Integrated DS1743P-100 Nonvolatile Timekeeping RAM is an essential component for any system requiring robust timekeeping and data retention capabilities. Its combination of RTC and NV SRAM technologies, long-term battery backup, and ease of use make it a top choice for engineers and designers looking to enhance their products with reliable time and data management features.