SCPS193D July   2010  – January 2023 TCA6424A

PRODUCTION DATA  

  1. 1 Features
  2. 2 Description
  3. 3 Revision History
  4. 4 Description (continued)
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings (1)
    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. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
      1. 8.1.1 Voltage Translation
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 I/O Port
      2. 8.3.2 I2C Interface
    4. 8.4 Device Functional Modes
      1. 8.4.1 Device Address
    5. 8.5 Programming
      1. 8.5.1 Power-On Reset
      2. 8.5.2 Reset Input ( RESET)
      3. 8.5.3 Interrupt Output ( INT)
      4. 8.5.4 Bus Transactions
        1. 8.5.4.1 Writes
        2. 8.5.4.2 Reads
    6. 8.6 Register Maps
      1. 8.6.1 Control Register and Command Byte
      2. 8.6.2 Register Descriptions
  9. 9 Application and Implementation
    1. 9.1 Typical Application
      1. 9.1.1 Detailed Design Procedure
        1. 9.1.1.1 Minimizing ICC When I/Os Control LEDs
    2. 9.2 Power Supply Recommendation
  10. 10Device and Documentation Support
    1. 10.1 Receiving Notification of Documentation Updates
    2. 10.2 Support Resources
    3. 10.3 Trademarks
    4. 10.4 Electrostatic Discharge Caution
    5. 10.5 Glossary
      1.      Mechanical, Packaging, and Orderable Information

1 Features

  • Operating power-supply voltage range of 1.65 V to 5.5 V
  • Allows bidirectional voltage-level translation and GPIO expansion between:
    • 1.8-V SCL/SDA and
      1.8-V, 2.5-V, 3.3-V, or 5-V P Port
    • 2.5-V SCL/SDA and
      1.8-V, 2.5-V, 3.3-V, or 5-V P Port
    • 3.3-V SCL/SDA and
      1.8-V, 2.5-V, 3.3-V, or 5-V P Port
    • 5-V SCL/SDA and
      1.8-V, 2.5-V, 3.3-V, or 5-V P Port
  • I2C to Parallel port expander
  • Low standby current consumption of 1 μA
  • Schmitt-Trigger action allows slow input transition and better switching noise immunity at the SCL and SDA inputs
    • Vhys = 0.18 V Typ at 1.8 V
    • Vhys = 0.25 V Typ at 2.5 V
    • Vhys = 0.33 V Typ at 3.3 V
    • Vhys = 0.5 V Typ at 5 V
  • 5-V Tolerant I/O ports
  • Active-low reset input ( RESET)
  • Open-drain active-low interrupt output ( INT)
  • 400-kHz Fast I2C Bus
  • Input/output configuration register
  • Polarity inversion register
  • Internal power-on reset
  • Power up with all channels configured as inputs
  • No glitch on power up
  • Noise filter on SCL/SDA inputs
  • Latched outputs with high-current drive maximum capability for directly driving LEDs
  • Latch-up performance exceeds 100 mA per JESD 78, class II
  • ESD protection exceeds JESD 22
    • 2000-V Human-body model (A114-A)
    • 200-V Machine model (A115-A)
    • 1000-V Charged-device model (C101)