STMicroelectronics M48T37V-10MH1E Timekeeper SRAM

The M48T37V-10MH1E is a high-performance 256 Kbit (32K x 8) Timekeeper SRAM manufactured by STMicroelectronics. This integrated device combines a potent mix of static RAM, a real-time clock (RTC), a crystal, and a power-fail control circuit in a single package, providing a comprehensive solution for systems requiring volatile memory and accurate timekeeping functionalities.

Designed to maintain clock and calendar functionality with precision, this Timekeeper SRAM operates at a voltage of 3.0 to 3.6V and features a clock frequency of 10MHz. It is particularly suitable for applications that demand reliable data retention and timekeeping even in the event of a main power failure, thanks to its integrated, factory-installed lithium battery that ensures data and time retention for over 10 years.

The M48T37V-10MH1E offers a byte-wide interface and is housed in a 44-pin SOH (SOIC) package, making it easy to integrate into various designs without the need for additional space for an external battery or crystal. It is commonly used in a myriad of applications, including industrial control systems, utility meters, security systems, network routers, and other embedded systems that require accurate timekeeping and data storage.

Key features of the M48T37V-10MH1E include:

• Integrated ultra-low power SRAM, real-time clock, power-fail control circuit, and battery
• Automatically switches to battery backup on power-fail
• Software-controlled clock calibration for high accuracy
• Programmable alarm and interrupt functions for versatile use-cases
• Serial number with write protection for security and traceability

STMicroelectronics provides a robust and reliable solution with the M48T37V-10MH1E, combining industry-leading technology with long-term data and time retention capabilities. This Timekeeper SRAM is an ideal choice for designers looking for a compact, integrated memory and timing solution that ensures system reliability and simplifies the design process.