STMicroelectronics M48T58Y-70MH1F

The STMicroelectronics M48T58Y-70MH1F is a low-power CMOS Real-Time Clock (RTC) with integrated SRAM (Static Random Access Memory). The device is primarily used for real-time applications where time and date tracking is essential. It is particularly well-suited for embedded systems, such as industrial applications, telecommunications, and computers that require both timekeeping and memory storage. Functions: 1. Real-Time Clock: It provides timekeeping functionalities, including seconds, minutes, hours, day, date, month, and year counting. 2. Battery Backup: Incorporates a battery backup feature to maintain timekeeping even when the main power supply is off. 3. SRAM Memory: It includes a built-in static RAM that can store data, making it useful for applications needing temporary data storage. 4. Programmed Alarm Functions: Can generate alarms at preset times, enabling wake-up functions in embedded applications. 5. Integrated Oscillator: Contains an integrated crystal oscillator for precise timekeeping. Applications: - Consumer Electronics: Alarm clocks, timers, and other household appliances needing real-time tracking. - Telecommunications: Used in network equipment for time-stamping and logging. - Industrial Equipment: Monitoring and control devices that require accurate timing and memory functions. - Computers: In personal computers and workstations for system timekeeping and storing configurations. - Medical Devices: In medical monitoring devices that require precise timing and log data collected over periods. Alternative Components: 1. DS1302: A low-power real-time clock from Maxim Integrated. 2. RTC8564: A real-time clock and calendar with an I2C interface. 3. PCF8563: A low-power real-time clock from NXP Semiconductors. 4. MCP7940N: A real-time clock with integrated SRAM from Microchip. 5. FPGA/MCU with RTC: Many microcontrollers and FPGAs have integrated RTC modules. Embedded Modules: 1. LoRa WAN RTC Modules: Combination modules for low-power IoT devices that use RTC function. 2. RTC Shields for Arduino: Modules that integrate an RTC chip for timekeeping capabilities in Arduino projects. 3. Raspberry Pi RTC Modules: GPIO-based RTC modules that allow a Raspberry Pi to maintain time accurately. 4. ESP32 RTC Modules: For ESP-based IoT applications requiring timekeeping features. Related Q&A: 1. Q: What is the primary use of the M48T58Y-70MH1F? A: The M48T58Y-70MH1F is primarily used for timekeeping in real-time applications and for temporary data storage due to its built-in SRAM. 2. Q: How does the battery backup feature work? A: The battery backup feature allows the device to keep track of time and retain data in SRAM even when the main power supply is interrupted. 3. Q: What is the significance of the 70MH1F in the part number? A: The “70” specifies the speed grade (70 ns access time), and “MH1F” indicates the package type and temperature grade of the component. 4. Q: Can the M48T58Y-70MH1F be used in battery-operated devices? A: Yes, it is designed for low power consumption, making it well-suited for battery-operated applications that require real-time clock functions. 5. Q: What are the common communication interfaces used with RTCs like the M48T58Y-70MH1F? A: Common interfaces include SPI (Serial Peripheral Interface) and I2C (Inter-Integrated Circuit), although the M48T58Y-70MH1F uses a specific interface as per its design. This comprehensive overview provides the necessary insights into the STMicroelectronics M48T58Y-70MH1F and its functionalities in various applications.