STMicroelectronics M48T12-200PC1 Timekeeper SRAM

The M48T12-200PC1 is a 16 Kbit 2Kb x8 TIMEKEEPER<sup>® Static RAM from STMicroelectronics, which integrates a high-performance CMOS static RAM with a built-in real-time clock/calendar (RTC) and a power-fail control circuit. This innovative product is designed to maintain accurate timekeeping while providing the reliability and access speed of static RAM for data storage. It is widely used in applications that require a dependable non-volatile memory with a built-in timekeeping function, such as embedded systems, industrial controllers, and utility meters.

The device operates on a 4.5 to 5.5 V supply voltage, ensuring compatibility with standard 5V systems. Its clock/calendar functionality accounts for seconds, minutes, hours, day, date, month, and year information, with automatic adjustments for months with fewer than 31 days, including leap year compensation up to the year 2099. The M48T12-200PC1 also features a programmable alarm and interrupt function that can be set to a specific time, providing additional utility for time-sensitive applications.

One of the key features of this product is its integrated power-fail chip-enable control. This allows the device to automatically switch to battery backup when power failures occur, ensuring that both the clock and static RAM contents are preserved. The M48T12-200PC1 is designed with a 28-pin, 600 mil DIP package, making it easy to integrate into a wide range of applications.

The SRAM provides unlimited read/write capability, offering a fast 200 ns access time. This makes it ideal for applications where rapid data access is essential. Additionally, the device's self-contained battery and crystal in the CAPHAT<sup>™ DIP package ensures a stable and reliable power source for the RTC, contributing to its long-term accuracy and data retention capabilities.

For designers and engineers looking for a reliable and integrated memory and timing solution, the M48T12-200PC1 from STMicroelectronics offers a robust and feature-packed option that can significantly streamline system design and enhance overall performance.

For detailed specifications and application information, please refer to the official STMicroelectronics M48T12-200PC1 datasheet and product documentation.