M41T82RM6E - English Editing Encyclopedia Entry

Product Overview

Category

M41T82RM6E belongs to the category of Real-Time Clocks (RTCs).

Use

The M41T82RM6E is primarily used for timekeeping and calendar functions in various electronic devices.

Characteristics

• Package: The M41T82RM6E comes in a small 8-pin SOIC package.
• Essence: It provides accurate timekeeping and calendar functions with low power consumption.
• Packaging/Quantity: The M41T82RM6E is typically sold in reels, with a quantity of 2500 units per reel.

Specifications

The M41T82RM6E has the following specifications:

• Supply Voltage: 1.8V to 5.5V
• Timekeeping Accuracy: ±2ppm at 25°C
• Operating Temperature Range: -40°C to +85°C
• Battery Backup Voltage: 1.3V to 5.5V
• I2C Bus Interface: Supports standard and fast mode (100kHz and 400kHz)

Detailed Pin Configuration

The M41T82RM6E has the following pin configuration:

1. VBAT - Battery Backup Input
2. GND - Ground
3. SDA - Serial Data Line
4. SCL - Serial Clock Line
5. SQW/INT - Square Wave Output / Interrupt Output
6. VCC - Power Supply
7. NC - No Connection
8. NC - No Connection

Functional Features

The M41T82RM6E offers the following functional features:

• Real-time clock with seconds, minutes, hours, day, date, month, and year information.
• Automatic leap year compensation.
• Programmable alarm and interrupt functions.
• Battery backup support for continuous timekeeping during power loss.
• Low power consumption in both active and backup modes.

Advantages and Disadvantages

Advantages of the M41T82RM6E include: - Accurate timekeeping with low power consumption. - Wide operating voltage range. - Small package size for space-constrained applications.

Disadvantages of the M41T82RM6E include: - Limited memory for additional user data storage. - Lack of built-in temperature compensation for improved accuracy.

Working Principles

The M41T82RM6E utilizes an internal oscillator to keep track of time. It communicates with the host microcontroller through the I2C bus interface. The device can be powered by either the main power supply or a backup battery, ensuring uninterrupted timekeeping even during power outages.

Detailed Application Field Plans

The M41T82RM6E finds applications in various electronic devices that require accurate timekeeping and calendar functions. Some potential application fields include:

1. Consumer Electronics: Smartphones, tablets, digital cameras, and portable media players.
2. Industrial Automation: Programmable logic controllers (PLCs), data loggers, and industrial timers.
3. Automotive: Dashboard clocks, infotainment systems, and vehicle tracking devices.
4. Medical Devices: Patient monitoring systems, medical equipment timers, and drug dispensers.

Detailed and Complete Alternative Models

Some alternative models to the M41T82RM6E include:

1. DS3231 - Real-Time Clock Module from Maxim Integrated.
2. PCF8563 - Real-Time Clock from NXP Semiconductors.
3. MCP7940N - I2C Real-Time Clock/Calendar from Microchip Technology.

These alternative models offer similar functionalities and can be considered as alternatives based on specific requirements.

In conclusion, the M41T82RM6E is a reliable Real-Time Clock (RTC) offering accurate timekeeping and calendar functions. With its low power consumption and small package size, it is suitable for various electronic devices across different application fields.

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