The M48T224V15MH5 is a high-performance, 256 Kbit (32K x 8) Timekeeper SRAM designed by STMicroelectronics. This integrated battery-backed SRAM and real-time clock (RTC) module is engineered for applications requiring reliable data storage and precise timekeeping functionalities. The device is ideal for a wide range of applications, including industrial control systems, telecommunications, network equipment, and other systems that require data and time integrity even during power loss.

Key Features

• Integrated Power-Supply: The M48T224V15MH5 comes with a built-in battery that ensures data retention and clock functionality for over 10 years in the absence of external power.
• Real-Time Clock: The device includes a quartz crystal controlled RTC that maintains accurate time tracking with a precision of seconds, minutes, hours, day, date, month, and year.
• Low Power Consumption: Designed with power efficiency in mind, it operates in a low-power mode when on battery backup, ensuring minimal energy usage.
• Automatic Battery Switch-over: The module automatically switches to its backup battery upon external power failure, guaranteeing uninterrupted operation.
• Byte-Wide SRAM Interface: The 32K x 8 SRAM provides a simple byte-wide interface, facilitating easy integration with a variety of microcontrollers and microprocessors.
• Watchdog Timer: An integrated watchdog timer improves system reliability by resetting the system in case of a software anomaly or malfunction.

Technical Specifications

• Memory Size: 256 Kbit (32K x 8)
• Package: The M48T224V15MH5 is available in a 44-pin SOH (SOJ) package that is both compact and robust.
• Operating Temperature: The device is designed to operate within a temperature range of 0°C to +70°C, making it suitable for commercial-grade applications.
• Supply Voltage: It operates at a nominal supply voltage of 5V, compatible with standard digital systems.

Overall, the M48T224V15MH5 from STMicroelectronics is a versatile and reliable component that offers the dual benefits of non-volatile data storage and precise timekeeping in one compact package. Its robust design and long-term data retention capabilities make it an excellent choice for critical systems where data and time accuracy are paramount.