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DS17887-3
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DS17887-3

Product Overview

Category: Integrated Circuit (IC)

Use: The DS17887-3 is a real-time clock (RTC) IC that provides accurate timekeeping and calendar functions for various electronic devices.

Characteristics: - High precision timekeeping - Low power consumption - Wide operating voltage range - Small package size - Easy integration into electronic systems

Package: The DS17887-3 is available in a compact 8-pin SOIC (Small Outline Integrated Circuit) package.

Essence: The essence of the DS17887-3 lies in its ability to accurately keep track of time and provide reliable calendar functions, making it an essential component for time-sensitive applications.

Packaging/Quantity: The DS17887-3 is typically sold in reels containing 250 units per reel.

Specifications

The DS17887-3 offers the following specifications:

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

Detailed Pin Configuration

The DS17887-3 features the following pin configuration:

  1. VCC - Power supply input
  2. GND - Ground connection
  3. X1 - Crystal oscillator input
  4. X2 - Crystal oscillator output
  5. SQW/OUT - Square wave output or interrupt output
  6. SDA - Serial data input/output
  7. SCL - Serial clock input
  8. VBAT - Battery backup input

Functional Features

The DS17887-3 offers the following functional features:

  • Real-time clock with calendar functions
  • Automatic leap year compensation
  • Alarm and interrupt capabilities
  • Battery backup for timekeeping during power loss
  • Serial interface for easy integration with microcontrollers

Advantages and Disadvantages

Advantages: - High precision timekeeping - Low power consumption - Compact package size - Easy integration into electronic systems - Reliable battery backup

Disadvantages: - Limited temperature range (-40°C to +85°C) - Relatively higher cost compared to some alternatives

Working Principles

The DS17887-3 utilizes a crystal oscillator to generate a precise clock frequency of 32.768 kHz. This clock signal is used to keep track of time and perform calendar functions. The IC also incorporates a battery backup system to ensure uninterrupted timekeeping during power loss.

Detailed Application Field Plans

The DS17887-3 finds applications in various fields, including:

  1. Consumer Electronics - Used in digital watches, clocks, and timers.
  2. Industrial Automation - Integrated into control systems for accurate time synchronization.
  3. Automotive - Employed in car dashboard clocks and event logging systems.
  4. Medical Devices - Utilized in medical equipment that requires precise timekeeping.

Detailed and Complete Alternative Models

Some alternative models to the DS17887-3 include:

  1. DS1307 - A popular RTC IC with similar features but lower accuracy.
  2. PCF8563 - Another RTC IC offering high accuracy and low power consumption.
  3. MCP7940N - An advanced RTC IC with additional features like temperature compensation.

These alternative models provide options for different requirements and budgets.

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Énumérez 10 questions et réponses courantes liées à l'application de DS17887-3 dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of DS17887-3 in technical solutions:

  1. Q: What is DS17887-3? A: DS17887-3 is a technical specification that defines the requirements for secure data storage and transmission in electronic systems.

  2. Q: What are the key features of DS17887-3? A: The key features of DS17887-3 include encryption algorithms, secure key management, access control mechanisms, and data integrity checks.

  3. Q: How can DS17887-3 be applied in technical solutions? A: DS17887-3 can be applied in technical solutions by implementing its specifications in hardware or software components that handle sensitive data.

  4. Q: Why is DS17887-3 important in technical solutions? A: DS17887-3 is important in technical solutions as it ensures the confidentiality, integrity, and availability of sensitive data, protecting it from unauthorized access or tampering.

  5. Q: What industries can benefit from implementing DS17887-3? A: Industries such as finance, healthcare, government, and telecommunications can benefit from implementing DS17887-3 to safeguard their sensitive data.

  6. Q: Are there any compliance standards associated with DS17887-3? A: Yes, DS17887-3 compliance may align with industry-specific standards like ISO/IEC 27001 (Information Security Management System) or NIST SP 800-53 (Security and Privacy Controls for Federal Information Systems).

  7. Q: Can DS17887-3 be used for both data storage and transmission? A: Yes, DS17887-3 can be used for both data storage and transmission, ensuring end-to-end security throughout the entire data lifecycle.

  8. Q: What are the challenges in implementing DS17887-3? A: Challenges in implementing DS17887-3 may include the complexity of encryption algorithms, secure key management, and ensuring compatibility with existing systems.

  9. Q: Are there any alternatives to DS17887-3 for securing data in technical solutions? A: Yes, there are alternative standards like AES (Advanced Encryption Standard) or RSA (Rivest-Shamir-Adleman) that can be used for securing data in technical solutions.

  10. Q: How can I ensure compliance with DS17887-3 in my technical solution? A: To ensure compliance with DS17887-3, you should thoroughly understand its specifications, implement the required security controls, conduct regular audits, and stay updated with any revisions or updates to the standard.

Please note that these questions and answers are generic and may vary depending on specific use cases and requirements.