ZHCSEZ2D January   2014  – October 2021 TCA9539-Q1

PRODUCTION DATA  

  1. 特性
  2. 应用
  3. 说明
  4. Revision History
  5. Pin Configuration and Functions
  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
  7. Parameter Measurement Information
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 I/O Port
      2. 8.3.2 RESET Input
      3. 8.3.3 Interrupt ( INT) Output
    4. 8.4 Device Functional Modes
      1. 8.4.1 Power-On Reset
    5. 8.5 Programming
      1. 8.5.1 I2C Interface
    6. 8.6 Register Maps
      1. 8.6.1 Device Address
      2. 8.6.2 Control Register And Command Byte
      3. 8.6.3 Register Descriptions
        1. 8.6.3.1 Bus Transactions
          1. 8.6.3.1.1 Writes
          2. 8.6.3.1.2 Reads
  9. Power Supply Recommendations
    1. 9.1 Power-On Reset Requirements
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 接收文档更新通知
    3. 11.3 支持资源
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 术语表

封装选项

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订购信息

Device Address

Figure 8-5 shows the address byte of the TCA9539-Q1.

GUID-A1CDE38E-E217-4F28-8A39-E70B15936AD3-low.gifFigure 8-5 TCA9539-Q1 Address

Table 8-2 shows the address reference of the TCA9539-Q1.

Table 8-2 Address Reference
INPUTSI2C BUS TARGET ADDRESS
A1A0
LL116 (decimal), 74 (hexadecimal)
LH117 (decimal), 75 (hexadecimal)
HL118 (decimal), 76 (hexadecimal)
HH119 (decimal), 77 (hexadecimal)

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