STMicroelectronics
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M41T80M6E
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M41T80M6E

Product Overview

Category

The M41T80M6E belongs to the category of real-time clock (RTC) integrated circuits.

Use

This product is primarily used for timekeeping and calendar functions in various electronic devices.

Characteristics

  • High accuracy timekeeping
  • Low power consumption
  • Small form factor
  • I2C interface for easy integration
  • Wide operating voltage range

Package

The M41T80M6E is available in a small surface mount package, making it suitable for compact electronic devices.

Essence

The essence of the M41T80M6E lies in its ability to provide accurate timekeeping and calendar functions with minimal power consumption.

Packaging/Quantity

The M41T80M6E is typically packaged in reels or tubes and is available in large quantities for mass production.

Specifications

  • Supply Voltage: 1.8V to 5.5V
  • Timekeeping Accuracy: ±2ppm at 25°C
  • Operating Temperature Range: -40°C to +85°C
  • I2C Bus Frequency: Up to 400kHz
  • Battery Backup Voltage: 1.3V to 5.5V

Detailed Pin Configuration

The M41T80M6E has the following pin configuration:

  1. VCC - Power supply input
  2. GND - Ground
  3. SDA - Serial data line for I2C communication
  4. SCL - Serial clock line for I2C communication
  5. SQW/OUT - Square wave output or interrupt output
  6. VBAT - Battery backup input
  7. NC - No connection

Functional Features

  • Real-time clock with calendar functions
  • Automatic leap year compensation
  • Alarm and timer functions
  • Programmable square wave output
  • Battery backup support
  • Power-fail detection and switch circuitry

Advantages and Disadvantages

Advantages

  • High accuracy timekeeping
  • Low power consumption
  • Compact form factor
  • Easy integration with I2C interface
  • Wide operating voltage range

Disadvantages

  • Limited functionality compared to more advanced RTCs
  • Lack of additional features such as temperature compensation

Working Principles

The M41T80M6E utilizes an internal oscillator to keep track of time. It synchronizes with an external crystal or resonator for accurate timekeeping. The device communicates with the host microcontroller through the I2C bus, allowing for easy configuration and data exchange.

Detailed Application Field Plans

The M41T80M6E is widely used in various applications that require precise timekeeping and calendar functions. Some common application fields include:

  1. Consumer electronics: Smartphones, tablets, digital cameras
  2. Industrial automation: Programmable logic controllers (PLCs), industrial control systems
  3. Automotive: On-board computers, infotainment systems
  4. Medical devices: Patient monitoring systems, medical equipment
  5. Internet of Things (IoT): Smart home devices, wearable technology

Detailed and Complete Alternative Models

  1. DS3231 - Real-time clock module with temperature compensation
  2. PCF8563 - Low-power real-time clock with alarm functions
  3. MCP7940N - I2C real-time clock/calendar with SRAM and battery switchover

These alternative models offer similar functionalities to the M41T80M6E and can be considered based on specific requirements and preferences.

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af M41T80M6E i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of M41T80M6E in technical solutions:

  1. Q: What is the M41T80M6E? A: The M41T80M6E is a real-time clock (RTC) module that provides accurate timekeeping and calendar functions for various technical applications.

  2. Q: How does the M41T80M6E connect to a microcontroller or system? A: The M41T80M6E typically connects via an I2C interface, allowing easy integration with microcontrollers or other devices.

  3. Q: Can the M41T80M6E operate on its own without external components? A: Yes, the M41T80M6E has an integrated crystal oscillator and backup battery circuit, making it a standalone solution for timekeeping.

  4. Q: What is the accuracy of the M41T80M6E? A: The M41T80M6E offers high accuracy with a typical deviation of only a few seconds per month.

  5. Q: Does the M41T80M6E support alarms or interrupts? A: Yes, the M41T80M6E provides alarm functionality and can generate interrupts to trigger specific actions in the system.

  6. Q: Can the M41T80M6E handle daylight saving time changes? A: Yes, the M41T80M6E supports automatic adjustment for daylight saving time, simplifying timekeeping in regions where DST is observed.

  7. Q: What is the operating voltage range of the M41T80M6E? A: The M41T80M6E operates within a wide voltage range of 1.8V to 5.5V, making it compatible with various power supply configurations.

  8. Q: Does the M41T80M6E have non-volatile memory for storing time and date information? A: Yes, the M41T80M6E has built-in non-volatile memory that retains time and date data even when power is disconnected.

  9. Q: Can the M41T80M6E be used in battery-powered applications? A: Absolutely! The low power consumption of the M41T80M6E makes it suitable for battery-powered devices, ensuring long-term operation.

  10. Q: Is the M41T80M6E available in different package options? A: Yes, the M41T80M6E is offered in various package options, including SOIC and TSSOP, providing flexibility for different PCB designs.

Please note that these answers are general and may vary depending on the specific implementation and requirements of your technical solution.