The M48T37V-10MH1TR is a high-quality Timekeeper SRAM product from STMicroelectronics, designed to provide a reliable and integrated battery-backed SRAM and real-time clock (RTC) solution for a wide range of applications. This particular device features a 3.3V 64 Kbit (8K x 8) non-volatile static RAM and clock, making it an excellent choice for systems that require data and timekeeping to be preserved across power cycles.

Key Features

• Integrated Power Supply: The device comes with an embedded lithium energy cell that maintains calendar and SRAM operation in the absence of an external power supply.
• Real-Time Clock (RTC): It includes a real-time clock capable of tracking seconds, minutes, hours, day, date, month, and year until the year 2100, with leap year compensation.
• Low Power Consumption: Designed for low power consumption, it helps to extend the life of the battery and reduce system power requirements.
• Byte-Wide SRAM Interface: The M48T37V-10MH1TR offers a simple byte-wide interface that is easily interfaced with most microcontrollers and microprocessors.
• Automatic Power-Fail Chip Deselect and Write Protection: These features ensure that when VCC falls below a certain threshold, the memory automatically switches to the battery supply, and write access is disabled to prevent data corruption.

Applications

This Timekeeper SRAM is ideal for a variety of applications where reliable and long-term data retention is critical. It is commonly used in:

• Industrial control systems
• Utility meters
• POS terminals
• Network routers and switches
• Medical equipment
• Security systems

Product Specifications

The M48T37V-10MH1TR operates at a temperature range of -40°C to +85°C and comes in a 44-lead SOIC package. The access time of 10ms ensures quick data retrieval, making it a highly responsive component in time-sensitive applications. The device also includes an oscillator compensation circuitry for better time accuracy and has a programmable alarm and interrupt function to support complex time-driven tasks within systems.

Overall, the M48T37V-10MH1TR from STMicroelectronics is a robust and versatile memory and timekeeping solution that provides long-term reliability for systems requiring non-volatile memory and an accurate real-time clock.