M41T81SM6F

The M41T81SM6F is a low-power serial real-time clock (RTC) IC with a built-in 32.768 kHz oscillator. It features I2C interface compatibility and a battery backup input, making it ideal for timekeeping and timestamping applications in various electronic devices.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

• VBAT: Battery Input
• SCL: Serial Clock Input/Output
• SDA: Serial Data Input/Output
• 32K: 32.768 kHz Output
• GND: Ground
• VCC: Positive Power Supply
• X1, X2: Oscillator Connections
• OSCOUT: Oscillator Output

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the M41T81SM6F RTC IC for a visual representation.

Key Features

• Real-Time Clock Functionality: Provides accurate timekeeping and calendar functions with a built-in 32.768 kHz oscillator.
• I2C Interface: Features I2C serial interface compatibility for easy integration with microcontrollers and other devices.
• Battery Backup Input: Supports battery backup to ensure continuous operation and data retention during power loss.
• Low-Power Operation: The M41T81SM6F operates at ultra-low power levels, suitable for energy-efficient applications.
• Automatic Power-Fail Detection: Includes power-fail detection and switch circuitry for seamless transitions between power modes.
• Programmable Alarms: Allows for the configuration of alarms for time-based notifications or system wakeup functions.

Note: For detailed technical specifications, please refer to the M41T81SM6F datasheet.

Application

• Embedded Systems: Ideal for timekeeping and timestamping in embedded systems, such as industrial control systems and consumer electronics.
• Data Logging: Suitable for use in data logging applications requiring accurate timestamping of events and measurements.
• IoT Devices: The M41T81SM6F can be integrated into IoT devices to provide real-time clock functionality for data synchronization.

Functionality

The M41T81SM6F is a low-power serial RTC IC designed to provide accurate timekeeping and calendar functions with minimal power consumption. Its I2C interface and battery backup support make it a versatile solution for various electronic applications.

Usage Guide

• Power Supply: Connect VCC (Pin 6) to the positive power supply and GND (Pin 5) to ground.
• Interface Connection: Use SCL (Pin 2) and SDA (Pin 3) for I2C communication with the microcontroller or host device.
• Battery Backup: Connect a backup battery to VBAT (Pin 1) to ensure continuous operation during power loss.

Frequently Asked Questions

Q: What is the typical backup battery voltage for the M41T81SM6F?
A: The typical backup battery voltage for the M41T81SM6F is 3V.

Q: Can the M41T81SM6F operate in ultra-low-power modes?
A: Yes, the M41T81SM6F is designed for ultra-low-power operation, making it suitable for energy-efficient applications requiring real-time clock functionality.