STMicroelectronics M48Z128Y-70PM1 Timekeeper SRAM

The M48Z128Y-70PM1 is a high-performance 128 Kbit Timekeeper^® SRAM, which is a non-volatile memory module that integrates SRAM, power-fail control circuitry, and a quartz crystal into a single package. This innovative product from STMicroelectronics has been designed to maintain data integrity and keep an accurate time count in the event of a power failure, making it an ideal choice for a wide range of applications where data and time must be preserved without interruption.

One of the key features of the M48Z128Y-70PM1 is its access time of 70ns, which provides fast read and write operations, ensuring high-speed data processing for embedded systems. The module operates within a voltage range of 4.5V to 5.5V, which is typical for 5V systems, and includes a built-in battery that automatically switches to maintain SRAM and clock operations when external power is lost.

The device offers a standard 128K x 8 SRAM configuration, which enables easy integration into a variety of system architectures. Its self-contained lithium battery and on-board crystal oscillator ensure that the module maintains data and accurate time for over 10 years in the absence of external power. The M48Z128Y-70PM1 also provides a serial real-time clock with an alarm feature, which can be used to wake up systems from power-saving modes at predetermined times.

Constructed in a 28-pin, 600 mil DIP package, the M48Z128Y-70PM1 is designed for simple insertion into standard sockets, providing designers with a convenient, reliable, and space-saving non-volatile memory solution. The module's compatibility with JEDEC standard pinouts for SRAMs allows for a seamless upgrade path for systems requiring non-volatile memory with integrated timekeeping capabilities.

Overall, the M48Z128Y-70PM1 is a versatile component that combines the reliability of STMicroelectronics' non-volatile memory technology with the precision of an integrated real-time clock, making it suitable for data logging, industrial control systems, point-of-sale terminals, and other applications where data and time must be accurately maintained during power outages.