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M41T94MH6F
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M41T94MH6F Product Overview

Introduction

The M41T94MH6F is a high-precision real-time clock (RTC) with a built-in temperature-compensated crystal oscillator (TCXO). This device belongs to the category of semiconductor integrated circuits and is widely used in various electronic applications that require accurate timekeeping and timestamping.

Basic Information Overview

  • Category: Semiconductor Integrated Circuits
  • Use: Real-time Clock (RTC)
  • Characteristics: High precision, temperature compensation, low power consumption
  • Package: 8-pin SOIC package
  • Essence: Accurate timekeeping and timestamping
  • Packaging/Quantity: Available in reels of 2500 units

Specifications

  • Operating Voltage: 1.8V to 5.5V
  • Timekeeping Accuracy: ±5ppm (at +25°C)
  • Temperature Range: -40°C to +85°C
  • I2C Interface: Up to 400kHz
  • Battery Backup: Built-in power sense circuitry for battery backup

Detailed Pin Configuration

  1. VBAT: Battery input for backup power
  2. GND: Ground connection
  3. SCL: I2C serial clock line
  4. SDA: I2C serial data line
  5. NC: No connection
  6. VCC: Power supply input
  7. OSF: Oscillator stop flag output
  8. SQW/INT/SW: Square wave output or interrupt output or software reset input

Functional Features

  • Temperature-compensated timekeeping
  • Automatic switchover and deselectable battery backup
  • Programmable alarm and timer functions
  • I2C interface for communication with microcontrollers

Advantages and Disadvantages

Advantages: - High precision timekeeping - Low power consumption - Wide operating voltage range

Disadvantages: - Limited temperature range compared to some industrial applications - Relatively small package size may limit external component integration

Working Principles

The M41T94MH6F utilizes a TCXO to maintain accurate timekeeping by compensating for temperature variations. It communicates with microcontrollers through the I2C interface, allowing for easy integration into various electronic systems. The built-in power sense circuitry enables seamless battery backup operation, ensuring uninterrupted timekeeping even during power outages.

Detailed Application Field Plans

The M41T94MH6F is well-suited for applications requiring precise timekeeping and timestamping, such as: - Data loggers - Industrial automation systems - Medical devices - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

  1. DS3231: Another popular RTC with integrated TCXO
  2. PCF85263A: RTC with similar features and I2C interface
  3. RV-1805-C3: Ultra-low power RTC with I2C interface

In conclusion, the M41T94MH6F offers high precision timekeeping and temperature compensation, making it an ideal choice for various electronic applications that demand reliable RTC functionality.

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Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan M41T94MH6F dalam solusi teknis

  1. What is the M41T94MH6F?

    • The M41T94MH6F is a low-power serial real-time clock (RTC) with a built-in 32.768 kHz crystal oscillator.

  2. What are the key features of the M41T94MH6F?

    • The key features include a wide operating voltage range, low power consumption, automatic leap year compensation, and a programmable square wave output.

  3. How is the M41T94MH6F typically used in technical solutions?

    • It is commonly used to provide accurate timekeeping for various applications such as industrial automation, consumer electronics, and automotive systems.

  4. What is the communication interface supported by the M41T94MH6F?

    • The M41T94MH6F supports I2C communication interface, making it easy to integrate into existing designs.

  5. Can the M41T94MH6F operate in harsh environmental conditions?

    • Yes, the M41T94MH6F is designed to operate in extended temperature ranges, making it suitable for use in harsh environments.

  6. Does the M41T94MH6F have battery backup support?

    • Yes, the M41T94MH6F has a built-in power-fail detection circuit and supports battery backup to ensure reliable timekeeping.

  7. What is the accuracy of the M41T94MH6F's timekeeping?

    • The M41T94MH6F offers high accuracy timekeeping with typical accuracy of ±5 ppm at 25°C.

  8. Is the M41T94MH6F compatible with different microcontrollers?

    • Yes, the M41T94MH6F is compatible with a wide range of microcontrollers that support the I2C interface.

  9. Can the M41T94MH6F be used in battery-powered applications?

    • Yes, the M41T94MH6F's low power consumption makes it suitable for battery-powered applications, extending the battery life.

  10. Are there any application notes or reference designs available for the M41T94MH6F?

    • Yes, STMicroelectronics provides application notes, reference designs, and technical documentation to assist in the integration of the M41T94MH6F into various technical solutions.