STMicroelectronics M41T81M6F

The STMicroelectronics M41T81M6F is a real-time clock (RTC) device that maintains accurate time and date information even during power outages. It typically features a built-in EEPROM for storing configuration settings and can be battery-backed, ensuring that it keeps track of time even when the primary power source is not available. Functions 1. Real-Time Clock: Provides time and date in Hours, Minutes, Seconds, Day, Month, and Year. 2. Low Power Consumption: Designed for low power applications, suitable for battery-operated devices. 3. Programmable Alarm: Allows setting alarms for specific times to activate specific operations. 4. EEPROM Storage: Includes non-volatile memory for storing user-defined settings. 5. I2C Communication: Utilizes I2C protocol for easy interfacing with microcontrollers and other devices. Applications - Consumer Electronics: Digital watches, clocks, and home appliances. - Industrial Equipment: For tracking operation time and scheduling maintenance. - Networking Equipment: To maintain accurate timestamps for data packets. - Medical Devices: For time-tracking in monitoring equipment and diagnostics. - Automotive Systems: Used in infotainment systems and vehicle safety monitoring systems. Alternative Parts 1. M41T00 - Another RTC option from STMicroelectronics with similar functionalities but different features. 2. MCP7940M - A real-time clock from Microchip with additional features like temperature compensation. 3. DS1307 - A widely used RTC from Maxim Integrated that provides timekeeping functionality. 4. RTC8564 - A RTC with similar communication interface options; available from NXP Semiconductors. Embedded Modules Embedded modules that may feature or integrate the M41T81M6F RTC include: - Microcontroller Development Boards: Many microcontroller boards include RTC functionality and may directly use the M41T81M6F. - Sensor Platforms: Some sensor platforms for IoT may integrate such RTCs for better time-stamping of data. - Wearable Devices: Modules for smartwatches often use RTCs like the M41T81M6F to maintain real-time tracking. Related Q&A 1. Q: What is the main function of the M41T81M6F RTC? A: The primary function of the M41T81M6F is to keep accurate time and date information, even in the absence of power, by using a battery-backed system. 2. Q: How does the M41T81M6F communicate with a microcontroller? A: The M41T81M6F communicates with microcontrollers via the I2C (Inter-Integrated Circuit) protocol, allowing easy integration into various electronic systems. 3. Q: What is the significance of EEPROM in the M41T81M6F? A: The EEPROM in the M41T81M6F is significant because it allows the storage of configuration settings and user data that persist even when the device is powered off. 4. Q: Can the M41T81M6F be used in battery-operated applications? A: Yes, the M41T81M6F is optimized for low power consumption and is ideally suited for battery-operated applications, where it can maintain time even when the main power is lost. 5. Q: What applications commonly use the M41T81M6F RTC? A: Common applications include consumer electronics such as digital watches and clocks, industrial equipment for scheduling and maintenance tracking, medical devices for monitoring, and automotive systems for infotainment and safety features.