SCPS225D August   2011  – April 2021 TCA9509

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Description (continued)
  6. 6 Pin Configuration and Functions
  7. 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 Timing Requirements
    7. 7.7 I2C Interface Timing Requirements
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Two-Channel Bidirectional Buffer
      2. 9.3.2 Integrated A-Side Current Source
      3. 9.3.3 Standard Mode and Fast Mode Support
    4. 9.4 Device Functional Modes
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Clock Stretching Support
        2. 10.2.2.2 VILC and Pulldown Strength Requirements
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Receiving Notification of Documentation Updates
    2. 13.2 Support Resources
    3. 13.3 Trademarks
    4. 13.4 Electrostatic Discharge Caution
    5. 13.5 Glossary

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • Two-channel bidirectional buffer
  • I2C bus and SMBus compatible
  • Operating supply voltage range of
    2.7 V to 5.5 V on B side
  • Operating voltage range of 0.9 V to 5.5 V on
    A side
  • Voltage-level translation from
    0.9 V to 5.5 V and 2.7 V to 5.5 V
  • Active-high repeater-enable input
  • Requires no external pullup resistors on
    lower-voltage port-A
  • Open-drain I2C I/O
  • 5.5-V Tolerant I2C and enable input support mixed-mode signal operation
  • Lockup-free operation
  • Accommodates standard mode and fast mode I2C devices and multiple controllers
  • Supports arbitration and clock stretching across Repeater
  • Powered-off high-impedance I2C bus pins
  • Supports 400-kHz fast I2C bus operating speeds
  • Available in
    • 1.6-mm × 1.6-mm, 0.4-mm height, 0.5-mm pitch QFN package
    • 3-mm × 3-mm Industry standard MSOP package
  • Latch-up performance exceeds 100 mA Per JESD 78, class II
  • ESD protection exceeds JESD 22
    • 2000-V Human-body model (A114-A)
    • 1000-V Charged-device model (C101)