M41ST87YMX6TR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Real-Time Clock (RTC) with Non-Volatile RAM (NVRAM)
• Characteristics:
  • Low power consumption
  • High accuracy timekeeping
  • Non-volatile storage of data
  • Small package size
• Package: SOIC-8
• Essence: Combines a real-time clock and non-volatile RAM in a single IC.
• Packaging/Quantity: Tape and reel, 2500 units per reel.

Specifications

• Supply Voltage: 2.7V to 5.5V
• Timekeeping Accuracy: ±2ppm at 25°C
• Operating Temperature Range: -40°C to +85°C
• RTC Clock Frequency: 32.768kHz
• NVRAM Size: 64 bytes
• I2C Bus Interface

Detailed Pin Configuration

The M41ST87YMX6TR has the following pin configuration:

1. VBAT: Backup battery input
2. GND: Ground
3. SDA: Serial Data Line for I2C communication
4. SCL: Serial Clock Line for I2C communication
5. NC: No Connection
6. WP: Write Protect
7. VCC: Power supply input
8. NC: No Connection

Functional Features

• Real-time clock with calendar functionality
• Automatic leap year compensation
• Alarm and timer functions
• Battery backup for timekeeping during power loss
• Non-volatile RAM for data storage
• Write protection feature to prevent accidental modification of data

Advantages and Disadvantages

Advantages: - Integration of real-time clock and non-volatile RAM saves board space and reduces component count. - Low power consumption extends battery life. - High accuracy timekeeping ensures precise time tracking. - Non-volatile RAM retains data even during power loss.

Disadvantages: - Limited NVRAM size (64 bytes) may not be sufficient for certain applications requiring larger data storage. - Requires an external backup battery for timekeeping during power loss.

Working Principles

The M41ST87YMX6TR combines a real-time clock and non-volatile RAM to provide accurate timekeeping and data storage capabilities. The RTC section generates and maintains the current date and time, including leap year compensation. The NVRAM section allows the user to store critical data that needs to be retained even when the power is disconnected. The IC operates on a low supply voltage and consumes minimal power, making it suitable for battery-powered devices.

Detailed Application Field Plans

The M41ST87YMX6TR can be used in various applications, including but not limited to:

1. Embedded systems requiring accurate timekeeping and data storage.
2. IoT devices where power consumption and space constraints are crucial.
3. Medical equipment that needs reliable time tracking and data logging.
4. Industrial automation systems for scheduling and event logging.
5. Automotive applications for recording vehicle usage data.

Detailed and Complete Alternative Models

1. DS1307 - Real-Time Clock with 56 bytes of NVRAM.
2. PCF8563 - Real-Time Clock with 256 bytes of NVRAM.
3. DS3231 - Highly accurate Real-Time Clock with integrated temperature sensor and 236 bytes of NVRAM.

These alternative models offer different features and NVRAM sizes, providing flexibility based on specific application requirements.

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