TCA9538 Low Voltage 8 Bit I2C And SMBus Power I/O Expander (Rev. D)

2017-07-11

• 1 Features
• 2 Applications
• 3 Description
• Table of Contents
• 4 Revision History
• 5 Pin Configuration and Functions
• 6 Specifications
  • 6.1 Absolute Maximum Ratings
  • 6.2 ESD Ratings
  • 6.3 Recommended Operating Conditions
  • 6.4 Thermal Information
  • 6.5 Electrical Characteristics
  • 6.6 I2C Interface Timing Requirements
  • 6.7 RESET Timing Requirements
  • 6.8 Switching Characteristics
  • 6.9 Typical Characteristics
• 7 Parameter Measurement Information
• 8 Detailed Description
  • 8.1 Overview
  • 8.2 Functional Block Diagram
  • 8.3 Feature Description
    • 8.3.1 I/O Port
    • 8.3.2 Interrupt Output (INT)
    • 8.3.3  RESET Input
  • 8.4 Device Functional Modes
    • 8.4.1 Power-On Reset
  • 8.5 Programming
    • 8.5.1 I2C Interface
  • 8.6 Register Map
    • 8.6.1 Device Address
    • 8.6.2 Control Register and Command Byte
    • 8.6.3 Register Descriptions
      • 8.6.3.1 Bus Transactions
• 9 Application and Implementation
  • 9.1 Application Information
  • 9.2 Typical Application
    • 9.2.1 Design Requirements
      • 9.2.1.1 Minimizing ICC When I/Os Control LEDs
    • 9.2.2 Detailed Design Procedure
    • 9.2.3 Application Curves
• 10 Power Supply Recommendations
  • 10.1 Power-On Reset Requirements
• 11 Layout
  • 11.1 Layout Guidelines
  • 11.2 Layout Example
• 12 Device and Documentation Support
  • 12.1 Documentation Support
    • 12.1.1 Related Documentation
  • 12.2 Receiving Notification of Documentation Updates
  • 12.3 Community Resources
  • 12.4 Trademarks
  • 12.5 Electrostatic Discharge Caution
  • 12.6 Glossary
• 13 Mechanical, Packaging, and Orderable Information