ZHCSJQ8C may   2019  – june 2023 TCA9548A-Q1

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Revision History
  6. 5 Pin Configuration and Functions
  7. 6 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 I2C Interface Timing Requirements
    7. 6.7 Reset Timing Requirements
    8. 6.8 Switching Characteristics
    9. 6.9 Typical Characteristics
  8. 7 Parameter Measurement Information
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
    4. 8.4 Device Functional Modes
      1. 8.4.1 RESET Input
      2. 8.4.2 Power-On Reset
    5. 8.5 Programming
      1. 8.5.1 I2C Interface
      2. 8.5.2 Device Address
      3. 8.5.3 Bus Transactions
        1. 8.5.3.1 Writes
        2. 8.5.3.2 Reads
      4. 8.5.4 Control Register
      5. 8.5.5 RESET Input
      6. 8.5.6 Power-On Reset
  10.   Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  11.   Power Supply Recommendations
    1. 9.1 Power-On Reset Requirements
  12. 9 Layout
    1. 9.1 Layout Guidelines
    2. 9.2 Layout Example
  13. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 接收文档更新通知
    3. 10.3 支持资源
    4. 10.4 商标
    5. 10.5 静电放电警告
    6. 10.6 术语表
  14.   Mechanical, Packaging, and Orderable Information

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8.5.2 Device Address

Figure 8-3 shows the address byte of the TCA9548A-Q1.

GUID-20210901-SS0I-K1GS-CVD4-WX16C4PT0FFF-low.gif Figure 8-3 TCA9548A-Q1 Address

The last bit of the target address defines the operation (read or write) to be performed. When it is high (1), a read is selected, while a low (0) selects a write operation.

Table 8-1 shows the TCA9548A-Q1 address reference.

Table 8-1 Address Reference
INPUTS I2C BUS TARGET ADDRESS
A2 A1 A0
L L L 112 (decimal), 70 (hexadecimal)
L L H 113 (decimal), 71 (hexadecimal)
L H L 114 (decimal), 72 (hexadecimal)
L H H 115 (decimal), 73 (hexadecimal)
H L L 116 (decimal), 74 (hexadecimal)
H L H 117 (decimal), 75 (hexadecimal)
H H L 118 (decimal), 76 (hexadecimal)
H H H 119 (decimal), 77 (hexadecimal)
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