STMicroelectronics M48T128Y-70PM1 Timekeeper RAM

The M48T128Y-70PM1 is a high-performance 128 Kbit Timekeeper^® SRAM from STMicroelectronics that integrates a battery-backed non-volatile timekeeping RAM with a built-in real-time clock/calendar and a programmable interrupt generator. This innovative product is designed to maintain data integrity and provide accurate timekeeping in a wide range of applications, even when the main power supply is turned off.

This Timekeeper RAM operates at a speed of 70ns, ensuring quick data access and processing, making it well-suited for high-speed systems that require reliable timekeeping and data storage capabilities. The M48T128Y-70PM1 is encapsulated in a self-contained, 28-pin, 600 mils SOIC package, providing a compact solution that is easy to integrate into various system designs.

The real-time clock/calendar of the M48T128Y-70PM1 provides seconds, minutes, hours, day, date, month, and year information, with the added benefit of leap year compensation valid up to the year 2100. The clock operates in either 24-hour or 12-hour format with an AM/PM indicator, catering to different user preferences and international standards.

An additional feature of the M48T128Y-70PM1 is its programmable alarm and interrupt function, which can be set to a specific time or date, triggering a system response when needed. This functionality is invaluable for applications such as power management, scheduled maintenance, or timed events.

STMicroelectronics has equipped the M48T128Y-70PM1 with an embedded lithium battery, which has a stable and long life, ensuring that data and time are preserved for an extended period without external power. The device also includes special circuitry to detect power failures and automatically switch to the battery supply, making it highly reliable in unpredictable power environments.

Overall, the M48T128Y-70PM1 from STMicroelectronics is an excellent choice for applications requiring a robust, non-volatile memory with an integrated real-time clock. Its wide operating temperature range and low power consumption make it ideal for industrial control systems, security systems, network servers, and other data-sensitive applications where time accuracy and data preservation are critical.