M41T94MH6E - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: Real-Time Clock (RTC) with Battery Backup

Characteristics: - Low-power RTC - Serial interface (I2C) - Battery backup for timekeeping - Programmable alarm and timer functions

Package: 8-pin SOIC (Small Outline Integrated Circuit)

Essence: The M41T94MH6E is a real-time clock IC designed to keep accurate time in electronic devices. It provides a low-power solution for timekeeping applications, offering features such as battery backup, programmable alarms, and timers.

Packaging/Quantity: The M41T94MH6E is available in an 8-pin SOIC package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Supply Voltage: 1.8V to 5.5V
• Timekeeping Accuracy: ±5ppm at 25°C
• Operating Temperature Range: -40°C to +85°C
• I2C Bus Frequency: Up to 400kHz
• Battery Backup Voltage: 2.0V to 5.5V
• Alarm Outputs: 2
• Timer Outputs: 1

Detailed Pin Configuration

The M41T94MH6E has the following pin configuration:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | VBAT | Battery Backup Voltage Input | | 2 | GND | Ground | | 3 | SDA | Serial Data Line (I2C) | | 4 | SCL | Serial Clock Line (I2C) | | 5 | ALM0 | Alarm Output 0 | | 6 | ALM1 | Alarm Output 1 | | 7 | SQW/INT | Square Wave Output / Interrupt Output | | 8 | VCC | Supply Voltage Input |

Functional Features

• Real-time clock with battery backup for accurate timekeeping
• I2C interface for easy integration with microcontrollers and other devices
• Programmable alarms and timers for event scheduling
• Square wave output for generating periodic signals
• Interrupt output for triggering events in connected systems

Advantages and Disadvantages

Advantages: - Low-power consumption - Accurate timekeeping - Easy integration with microcontrollers - Programmable alarms and timers for event scheduling

Disadvantages: - Limited number of alarm and timer outputs - Requires an external battery for backup

Working Principles

The M41T94MH6E utilizes a quartz crystal oscillator to generate accurate timekeeping signals. It operates in conjunction with an external battery to ensure continuous timekeeping even when the main power supply is disconnected. The IC communicates with other devices through the I2C bus, allowing for easy integration into various electronic systems.

Detailed Application Field Plans

The M41T94MH6E can be used in a wide range of applications that require accurate timekeeping. Some potential application fields include:

1. Consumer Electronics:

   • Digital clocks and watches
   • Set-top boxes
   • Home automation systems

2. Industrial Automation:

   • Programmable logic controllers (PLCs)
   • Data loggers
   • Time-based control systems

3. Automotive:

   • Dashboard clocks
   • Infotainment systems
   • Vehicle tracking systems

4. Medical Devices:

   • Patient monitoring systems
   • Laboratory equipment
   • Drug dispensing machines

Detailed and Complete Alternative Models

1. DS3231 - Real-Time Clock Module with I2C Interface
2. PCF8563 - Real-Time Clock and Calendar IC with I2C Interface
3. DS1307 - Low-Power Real-Time Clock IC with I2C Interface

These alternative models offer similar functionality to the M41T94MH6E and can be considered as alternatives based on specific requirements and preferences.

In conclusion, the M41T94MH6E is a versatile real-time clock IC that provides accurate timekeeping and various features for event scheduling. Its low-power consumption and easy integration make it suitable for a wide range of applications in consumer electronics, industrial automation, automotive, and medical devices.