ZHCSQD8C July   2007  – April 2022 PCA9306-Q1

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: Translating Down, VIH = 3.3 V
    7. 7.7  Switching Characteristics: Translating Down, VIH = 2.5 V
    8. 7.8  Switching Characteristics: Translating Up, VIH = 2.3 V
    9. 7.9  Switching Characteristics: Translating Up, VIH = 1.5 V
    10. 7.10 Typical Characteristics
  8. Parameter Measurement Information
  9. Detailed Description
    1. 9.1 Overview
      1. 9.1.1 Definition of threshold voltage
      2. 9.1.2 Correct Device Set Up
      3. 9.1.3 Disconnecting a Target from the Main I2C Bus Using the EN Pin
      4. 9.1.4 Supporting Remote Board Insertion to Backplane with PCA9306-Q1
      5. 9.1.5 Switch Configuration
      6. 9.1.6 Controller on Side 1 or Side 2 of Device
      7. 9.1.7 LDO and PCA9306-Q1 Concerns
      8. 9.1.8 Current Limiting Resistance on VREF2
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Enable (EN) Pin
      2. 9.3.2 Voltage Translation
    4. 9.4 Device Functional Modes
  10. 10Application and Implementation
    1. 10.1 Application Information
      1. 10.1.1 General Applications of I2C
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Bidirectional Translation
        2. 10.2.2.2 Sizing Pullup Resistor
        3. 10.2.2.3 PCA9306-Q1 Bandwidth
      3. 10.2.3 Application Curves
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Documentation Support
      1. 13.1.1 Related Documentation
    2. 13.2 接收文档更新通知
    3. 13.3 支持资源
    4. 13.4 Trademarks
    5. 13.5 Electrostatic Discharge Caution
    6. 13.6 术语表
  14. 14Mechanical, Packaging, and Orderable Information

说明

这款采用使能 (EN) 输入的双路双向 I2C 和 SMBus 电压电平转换器可在 1.2V 至 3.3V VREF1 和 1.8V 至 5.5V VREF2 的范围内工作。

PCA9306-Q1 可以在 1.2V 到 5V 之间实现双向电压转换而无须使用方向引脚。此开关具有低导通状态电阻 (ron),可以在最短传播延迟情况下建立连接。当 EN 为高电平时,转换器开关打开,并且 SCL1 和 SDA1 I/O 被分别连接至 SCL2 和 SDA2 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,在端口之间存在一个高阻态。

器件信息
器件型号 封装(1) 封装尺寸(标称值)
PCA9306-Q1 VSSOP (8) 2.30mm x 2.00mm
如需了解所有可用封装,请参阅数据表末尾的可订购米6体育平台手机版_好二三四附录。
简化版应用示意图