ZHCSN66D january   1998  – january 2021 CD54HC00 , CD74HC00

PRODUCTION DATA  

  1.   1
  2. 特性
  3. 应用
  4. 说明
  5.   5
  6.   6
  7. Revision History
  8. Pin Configuration and Functions
    1.     Pin Functions
  9. Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Switching Characteristics
    7. 6.7 Operating Characteristics
    8. 6.8 Typical Characteristics
  10. Parameter Measurement Information
  11. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Balanced CMOS Push-Pull Outputs
    4. 8.4 Standard CMOS Inputs
    5. 8.5 Clamp Diode Structure
    6. 8.6 Device Functional Modes
  12. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
        1. 9.2.1.1 Power Considerations
        2. 9.2.1.2 Input Considerations
        3. 9.2.1.3 Output Considerations
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curve
  13. 10Power Supply Recommendations
  14. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  15. 12Device and Documentation Support
    1. 12.1 Documentation Support
    2. 12.2 接收文档更新通知
    3. 12.3 支持资源
    4. 12.4 Trademarks
    5. 12.5 静电放电警告
    6. 12.6 术语表
  16. 13Mechanical, Packaging, and Orderable Information

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • J|14
散热焊盘机械数据 (封装 | 引脚)
订购信息

Application Information

In this application, the CD74HC00 用于创建 SR 锁存器。可以对第二个低电平有效的 SR 锁存器使用两个额外的逻辑门,将它们分别用于各自的逻辑函数,或者可将输入接地且两个通道均未使用。该器件用于驱动篡改指示灯 LED 并为系统控制器提供一位数据。当防拆开关输出低电平时,输出 Q 变为高电平。此输出保持高电平,直到系统控制器处理该事件并向 R 输入发送低电平信号,使 Q 输出恢复至低电平。