DS17887-3-IND

Product Overview

Category: Integrated Circuit (IC)

Use: The DS17887-3-IND is a high-performance real-time clock (RTC) IC designed for various applications that require accurate timekeeping and calendar functions. It provides precise timing information to the system, making it suitable for use in industrial control systems, automotive electronics, medical devices, and other time-sensitive applications.

Characteristics: - High accuracy timekeeping - Low power consumption - Wide operating temperature range - Small form factor - Easy integration into existing systems

Package: The DS17887-3-IND comes in a compact 8-pin SOIC (Small Outline Integrated Circuit) package, which ensures ease of handling and compatibility with standard PCB (Printed Circuit Board) designs.

Essence: The essence of the DS17887-3-IND lies in its ability to provide reliable and precise timekeeping functionality, enabling synchronized operations in various electronic systems.

Packaging/Quantity: Each DS17887-3-IND unit is packaged individually and is available in reels containing multiple units, allowing for convenient manufacturing and distribution processes.

Specifications

• Supply Voltage: 2.7V to 5.5V
• Timekeeping Accuracy: ±2 minutes per month at 25°C
• Operating Temperature Range: -40°C to +85°C
• Battery Backup Voltage: 2.0V to 5.5V
• Clock Frequency: 32.768kHz

Detailed Pin Configuration

The DS17887-3-IND features the following pin configuration:

1. VCC - Power supply input
2. GND - Ground connection
3. SDA - Serial Data Line for communication
4. SCL - Serial Clock Line for synchronization
5. SQW/OUT - Square Wave Output or Interrupt Output
6. VBAT - Battery Backup Input
7. X1 - Crystal Oscillator Input
8. X2 - Crystal Oscillator Output

Functional Features

• Real-time clock with calendar functionality
• Automatic leap year compensation
• Alarm and timer functions
• Power-fail detection and battery backup support
• Programmable square wave output
• I2C (Inter-Integrated Circuit) interface for communication

Advantages and Disadvantages

Advantages: - High accuracy timekeeping ensures precise synchronization in various applications. - Low power consumption extends battery life in portable devices. - Wide operating temperature range allows for reliable operation in harsh environments. - Compact form factor enables easy integration into space-constrained designs.

Disadvantages: - Limited memory capacity for storing additional data. - Lack of advanced features compared to more specialized RTC ICs.

Working Principles

The DS17887-3-IND utilizes an internal oscillator circuit and a crystal oscillator to generate accurate timing signals. It maintains the current time and date information even during power loss by utilizing an external backup battery. The I2C interface facilitates communication with the host system, enabling configuration and retrieval of time-related data.

Detailed Application Field Plans

The DS17887-3-IND finds application in various fields, including but not limited to: - Industrial control systems - Automotive electronics - Medical devices - Consumer electronics - Communication equipment - Security systems

Detailed and Complete Alternative Models

1. DS3231 - A highly accurate RTC IC with integrated temperature compensation and additional memory capacity.
2. PCF8563 - An RTC IC with alarm and timer functions, suitable for low-power applications.
3. MCP7940N - A feature-rich RTC IC with battery switchover capability and non-volatile memory storage.

These alternative models offer different features and capabilities, allowing users to choose the most suitable option based on their specific requirements.

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