STMicroelectronics M48T37V-10MH6F Timekeeper SRAM

The M48T37V-10MH6F from STMicroelectronics is a 3.3V, 256 Kbit (32K x 8) Timekeeper SRAM which integrates a binary time counter, a programmable alarm, a crystal, and the industry-standard SRAM. This unique combination provides a highly integrated battery-backed memory and real-time clock solution that is perfect for applications requiring timekeeping and data storage in a single package.

This versatile component is designed with a 28-pin, 330 mil SOIC package, making it compact and suitable for space-constrained applications. Its access time of 100 ns allows for rapid data retrieval, ensuring high-performance operation in a variety of systems.

Key Features:

• Integrated Power-Fail De-Select (PFD): The M48T37V-10MH6F includes a power-fail deselect circuit which monitors the supply voltage. This feature ensures data integrity by automatically write-protecting the memory when the supply voltage drops below a certain threshold.
• Real-Time Clock (RTC): The device comes with an embedded RTC which keeps track of seconds, minutes, hours, day, date, month, and year information. The accuracy of the RTC is maintained over a temperature range of 0°C to +70°C.
• Programmable Alarm: A user-programmable alarm can be set to trigger on a specific time and date, providing a useful tool for time-based event management within a system.
• Low Power Consumption: The device is designed for low power consumption, which is critical for battery-backed memory applications to extend the life of the backup battery.
• Automatic Battery Switch: In the event of a power failure, the device automatically switches to its backup battery, ensuring uninterrupted operation of the timekeeping function.

The M48T37V-10MH6F is an ideal solution for a broad range of applications, including industrial control systems, utility meters, POS terminals, and medical devices, where reliable timekeeping and data retention are essential. With its robust feature set and integrated design, this Timekeeper SRAM from STMicroelectronics simplifies design complexity and enhances the reliability of systems requiring non-volatile memory and real-time clock capabilities.