Maxim Integrated DS1251YP-100 Nonvolatile Timekeeping RAM

The DS1251YP-100 is a high-performance, full-featured nonvolatile timekeeping RAM produced by Maxim Integrated. This innovative component combines a full-featured real-time clock (RTC) and 128k x 8 nonvolatile static RAM in one compact package. It is designed to provide a reliable and durable memory solution with an integrated timekeeping function that is essential for a wide range of applications, including industrial control systems, utility meters, and communication equipment.

The device features a built-in lithium battery that maintains the RTC and RAM data for over 10 years in the absence of external power. This ensures that timekeeping and data storage are preserved even during power outages or when the device is turned off. The DS1251YP-100 operates in a wide voltage range from 4.5V to 5.5V, making it versatile for various system designs.

With an access time of 100 ns, the DS1251YP-100 offers fast read and write operations, which is critical for high-performance applications that require quick data retrieval and storage. The integrated RTC provides a full suite of timekeeping features including seconds, minutes, hours, day, date, month, and year information, with automatic leap year compensation valid up to the year 2100.

Furthermore, the device includes an interrupt output pin that can be programmed to generate alarms for specific time events, adding to its flexibility and utility in system designs. The DS1251YP-100 comes in a power-saving 28-pin EDIP (Encapsulated Dual In-line Package) that is compatible with standard sockets, facilitating easy integration into existing and new designs.

For added convenience, the DS1251YP-100 is fully compatible with the industry-standard JEDEC 28-pin 600-mil DIP footprint. This compatibility ensures that designers can easily upgrade their systems with this high-quality timekeeping RAM without the need for extensive board redesigns.

Overall, the Maxim Integrated DS1251YP-100 provides a robust and reliable nonvolatile memory solution with an integrated real-time clock, making it an excellent choice for systems that require long-term data retention and precise timekeeping.