ZHCSD68H July   2014  – April 2021 LSF0204 , LSF0204D

PRODUCTION DATA  

  1. 特性
  2. 应用
  3. 说明
  4. Revision History
  5. 说明(续)
  6. Pin Configuration and Functions
  7. Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  Recommended Operating Conditions
    4. 7.4  Thermal Information
    5. 7.5  Electrical Characteristics
    6. 7.6  Switching Characteristics: AC Performance (Translating Down, 3.3 V to 1.8 V)
    7. 7.7  Switching Characteristics: AC Performance (Translating Down, 3.3 V to 1.2 V)
    8. 7.8  Switching Characteristics: AC Performance (Translating Up, 1.8 V to 3.3 V)
    9. 7.9  Switching Characteristics: AC Performance (Translating Up, 1.2 V to 1.8 V)
    10. 7.10 Typical Characteristics
  8. Parameter Measurement Information
    1. 8.1 Load Circuit AC Waveform for Outputs
  9. Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Support High Speed Translation, Greater than 100 MHz
      2. 9.3.2 Bidirectional Voltage Translation Without DIR Terminal
      3. 9.3.3 5-V Tolerance on IO Port and 125°C Support
      4. 9.3.4 Channel Specific Translation
      5. 9.3.5 Ioff, Partial Power Down Mode
    4. 9.4 Device Functional Modes
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Applications
      1. 10.2.1 I2C PMBus, SMBus, GPIO, Application
        1. 10.2.1.1 Design Requirements
          1. 10.2.1.1.1 Enable, Disable, and Reference Voltage Guidelines
        2. 10.2.1.2 Detailed Design Procedure
          1. 10.2.1.2.1 Bidirectional Translation
            1. 10.2.1.2.1.1 Pull-Up Resistor Sizing
          2. 10.2.1.2.2 LS Family Bandwidth
        3. 10.2.1.3 Application Curve
      2. 10.2.2 MDIO Application
        1. 10.2.2.1 Design Requirements
        2. 10.2.2.2 Detailed Design Procedure
        3. 10.2.2.3 Application Curve
      3. 10.2.3 Multiple Voltage Translation in Single Device, Application
        1. 10.2.3.1 Design Requirements
        2. 10.2.3.2 Detailed Design Procedure
        3. 10.2.3.3 Application Curve
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 接收文档更新通知
    2. 13.2 支持资源
    3. 13.3 Trademarks
    4. 13.4 Electrostatic Discharge Caution
    5. 13.5 术语表
  14. 14Mechanical, 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)
  • RGY|14
  • YZP|12
  • RUT|12
  • PW|14
散热焊盘机械数据 (封装 | 引脚)
订购信息

说明(续)

每个通道的电源电压 (Vpu#) 可以用上拉电阻器单独进行设置。例如,CH1 可用于上行转换模式 (1.2V ↔ 3.3V),CH2 可用于下行转换模式 (2.5V ↔ 1.8V)。

当 EN 为高电平时,转换器开关打开,并且 An I/O 分别连接至 Bn I/O,从而实现端口间的双向数据流。当 EN 为低电平时,转换器开关关闭,端口之间呈高阻抗状态。EN 输入电路被设计成由 Vref_A 供电。EN 必须为低电平,从而确保上电或断电期间的高阻抗状态。

器件比较表
器件型号ENAnBn说明
LSF0204DH将所有数据引脚置于三态模式(高阻态)将所有数据引脚置于三态模式(高阻态)三态输出模式启用
(低电平有效;以 Vref_A 为基准)
LSF0204DL输入或输出输入或输出
LSF0204H输入或输出输入或输出三态输出模式启用
(高电平有效,以 Vref_A 为基准)
LSF0204L将所有数据引脚置于三态模式(高阻态)将所有数据引脚置于三态模式(高阻态)