M41T81SMY6E datasheet by STMicroelectronics

M41T81SMY6E Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for the M41T81SMY6E?
  The recommended operating voltage range for the M41T81SMY6E is 2.5V to 5.5V, with a typical operating voltage of 3.3V.
• How does the M41T81SMY6E handle battery backup during power failures?
  The M41T81SMY6E has a built-in battery switchover circuit that automatically switches to the backup battery during power failures, ensuring that the RTC continues to operate.
• What is the accuracy of the internal oscillator in the M41T81SMY6E?
  The internal oscillator in the M41T81SMY6E has an accuracy of ±10 ppm at 25°C, which is sufficient for most RTC applications.
• Can the M41T81SMY6E be used in high-temperature applications?
  Yes, the M41T81SMY6E is rated for operation up to 85°C, making it suitable for use in high-temperature applications.
• How do I program the alarm and timer functions in the M41T81SMY6E?
  The alarm and timer functions in the M41T81SMY6E can be programmed using the I2C interface, by writing to the appropriate registers. Refer to the datasheet for detailed programming information.