M41T81MX6

Product Overview

Category

M41T81MX6 belongs to the category of real-time clock (RTC) integrated circuits.

Use

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

Characteristics

• Accurate timekeeping with low power consumption
• Integrated oscillator circuitry
• Non-volatile memory for storing time and date information
• Serial interface for easy communication with microcontrollers
• Wide operating voltage range
• Small package size for space-constrained applications

Package

M41T81MX6 is available in a compact surface-mount package, making it suitable for PCB integration.

Essence

The essence of M41T81MX6 lies in its ability to provide accurate timekeeping functionality in electronic devices.

Packaging/Quantity

The product is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Operating Voltage: 1.8V to 5.5V
• Timekeeping Accuracy: ±2 ppm at 25°C
• Operating Temperature Range: -40°C to +85°C
• Interface: I2C (Inter-Integrated Circuit)
• Memory: 64 bytes of non-volatile RAM
• Clock Output: Programmable square wave output

Detailed Pin Configuration

1. VCC: Power supply input
2. GND: Ground connection
3. SDA: Serial data line for I2C communication
4. SCL: Serial clock line for I2C communication
5. SQW/OUT: Programmable square wave output
6. NC: No connection (reserved pin)

Functional Features

• Real-time clock with calendar functions
• Automatic leap year compensation
• Alarm and timer functions
• Battery backup for continuous timekeeping during power loss
• Power-saving mode for reduced power consumption
• Configurable square wave output frequency

Advantages and Disadvantages

Advantages

• Accurate timekeeping with low power consumption
• Integrated oscillator circuitry simplifies design
• Non-volatile memory ensures data retention during power loss
• Small package size allows for space-efficient integration

Disadvantages

• Limited non-volatile RAM capacity (64 bytes)
• Requires an external battery for backup power

Working Principles

M41T81MX6 utilizes an integrated oscillator circuit to generate accurate clock signals. It communicates with a microcontroller or other devices through the I2C interface, allowing for easy configuration and retrieval of time and date information. The non-volatile RAM ensures that the timekeeping data is retained even in the absence of power.

Detailed Application Field Plans

M41T81MX6 finds applications in various electronic devices that require precise timekeeping and calendar functions. Some potential application fields include:

1. Consumer Electronics: Smartphones, tablets, digital cameras
2. Industrial Automation: Programmable logic controllers (PLCs), industrial timers
3. Automotive: Dashboard clocks, car audio systems
4. Medical Devices: Patient monitoring systems, medical equipment with time-sensitive operations
5. Internet of Things (IoT): Connected devices requiring synchronized timekeeping

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. DS1307 - Basic real-time clock with I2C interface

These alternative models offer similar functionality to M41T81MX6 and can be considered based on specific requirements and preferences.

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