M41T56MH6F

Product Overview

• Category: Integrated Circuit (IC)
• Use: Real-Time Clock (RTC) with Battery Backup
• Characteristics: Low-power, I2C Interface, 56-byte Non-volatile RAM (NVRAM), Automatic Leap Year Compensation
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: Accurate timekeeping and calendar functions with battery backup
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 1.8V to 5.5V
• Timekeeping Current: 400nA (typical)
• Operating Temperature Range: -40°C to +85°C
• Clock Accuracy: ±2ppm (parts per million)
• I2C Bus Frequency: 100kHz or 400kHz
• Battery Backup Voltage: 2.0V to 5.5V

Detailed Pin Configuration

The M41T56MH6F has the following pin configuration:

1. VBAT - Battery Backup Input
2. GND - Ground
3. SDA - Serial Data Line (I2C)
4. SCL - Serial Clock Line (I2C)
5. SQW/INT - Square Wave Output / Interrupt Output
6. NC - No Connection
7. NC - No Connection
8. VCC - Supply Voltage

Functional Features

• Real-time clock with seconds, minutes, hours, day, date, month, and year information
• Automatic leap year compensation
• Battery backup for continuous timekeeping during power loss
• 56 bytes of non-volatile RAM (NVRAM) for user data storage
• I2C interface for easy integration with microcontrollers
• Programmable square wave output with selectable frequencies

Advantages and Disadvantages

Advantages: - Low power consumption for extended battery life - Accurate timekeeping with high clock accuracy - Compact package size for space-constrained applications - Easy integration with microcontrollers using I2C interface

Disadvantages: - Limited non-volatile RAM (56 bytes) for user data storage - Requires an external battery for backup during power loss

Working Principles

The M41T56MH6F is a real-time clock IC that utilizes an internal oscillator to keep track of time. It operates on a low supply voltage and consumes minimal power, making it suitable for battery-powered devices. The clock accuracy is maintained through automatic leap year compensation.

During normal operation, the IC receives power from the main supply and keeps track of time. In case of a power loss, the integrated battery backup ensures continuous timekeeping. The I2C interface allows communication with microcontrollers, enabling easy access to time and date information.

Detailed Application Field Plans

The M41T56MH6F is commonly used in various applications, including:

1. Consumer Electronics: Used in digital cameras, portable media players, and smartwatches to provide accurate timekeeping functionality.
2. Automotive Systems: Integrated into car infotainment systems, dashboard displays, and navigation units to maintain accurate time and date information.
3. Industrial Automation: Utilized in programmable logic controllers (PLCs), industrial timers, and data loggers for precise time synchronization and event logging.
4. Medical Devices: Incorporated into medical equipment such as patient monitors, infusion pumps, and diagnostic instruments to ensure accurate time tracking.

Detailed and Complete Alternative Models

1. DS3231 - Real-Time Clock Module with Temperature Compensation
2. PCF8563 - Real-Time Clock and Calendar with Alarm Functions
3. MCP7940N - I2C Real-Time Clock/Calendar with SRAM and Battery Switchover

These alternative models offer similar functionality to the M41T56MH6F and can be considered as alternatives based on specific requirements.

In conclusion, the M41T56MH6F is a versatile real-time clock IC that provides accurate timekeeping and calendar functions. Its low-power consumption, I2C interface, and battery backup make it suitable for a wide range of applications in consumer electronics, automotive systems, industrial automation, and medical devices.