M41ST95WMX6TR

Product Overview

• Category: Integrated Circuit
• Use: Real-Time Clock (RTC) with Non-Volatile Memory (NVM)
• Characteristics:
  • Low power consumption
  • High accuracy timekeeping
  • Non-volatile memory for data storage
  • Small package size
  • Wide operating temperature range
• Package: SOIC-8
• Essence: Combines a real-time clock and non-volatile memory in a single integrated circuit.
• Packaging/Quantity: Tape and reel, 2500 units per reel.

Specifications

• Supply Voltage: 1.8V to 5.5V
• Timekeeping Accuracy: ±2ppm at 25°C
• Operating Temperature Range: -40°C to +85°C
• Memory Size: 64 bytes of NVRAM
• Clock Frequency: 32.768kHz
• Battery Backup Voltage: 1.3V to 5.5V

Detailed Pin Configuration

The M41ST95WMX6TR has the following pin configuration:

| Pin Number | Pin Name | Function | |------------|----------|----------| | 1 | VBAT | Battery Input | | 2 | GND | Ground | | 3 | SDA | Serial Data Line | | 4 | SCL | Serial Clock Line | | 5 | WP | Write Protect | | 6 | NC | No Connection | | 7 | VCC | Power Supply | | 8 | NC | No Connection |

Functional Features

• Real-time clock with calendar and alarm functions
• Automatic leap year compensation
• Programmable square wave output
• Battery backup for continuous timekeeping during power loss
• Non-volatile memory for storing critical data
• I2C interface for easy integration with microcontrollers

Advantages and Disadvantages

Advantages: - Low power consumption extends battery life - High accuracy timekeeping ensures precise timing - Compact package size saves board space - Wide operating temperature range allows usage in various environments

Disadvantages: - Limited NVRAM capacity (64 bytes) - Requires an external battery for backup power

Working Principles

The M41ST95WMX6TR combines a real-time clock and non-volatile memory to provide accurate timekeeping and data storage capabilities. It utilizes a low-frequency crystal oscillator to generate a 32.768kHz clock signal, which is used for timekeeping. The integrated non-volatile memory allows the storage of critical data even during power loss.

The device communicates with a microcontroller using the I2C interface, enabling easy integration into various systems. It also features a battery input for backup power, ensuring continuous timekeeping during power interruptions.

Detailed Application Field Plans

The M41ST95WMX6TR finds applications in various fields, including:

1. Embedded Systems: Used in industrial automation, IoT devices, and consumer electronics for accurate timekeeping and data storage.
2. Automotive: Integrated into automotive systems for maintaining accurate timestamps and storing critical vehicle data.
3. Medical Devices: Utilized in medical equipment to record timestamps for events and store vital patient information.
4. Security Systems: Incorporated into security systems for accurate event logging and maintaining system integrity.

Detailed and Complete Alternative Models

1. DS3231 - Real-Time Clock Module with I2C Interface
2. PCF8563 - Real-Time Clock and Calendar with I2C-Bus Interface
3. MCP7940N - Real-Time Clock/Calendar with EEPROM and SRAM

These alternative models offer similar functionality and can be considered as alternatives to the M41ST95WMX6TR.

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