SCES974B February   2025  – March 2026 TXS0204

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Thermal Information 
    5. 5.5  Electrical Characteristics
    6. 5.6  Electrical Characteristics (Cont.)
    7. 5.7  Switching Characteristics, VCCA = 1.2 ± 0.1V
    8. 5.8  Switching Characteristics, VCCA = 1.5 ± 0.1V
    9. 5.9  Switching Characteristics, VCCA = 1.8 ± 0.15V
    10. 5.10 Switching Characteristics, VCCA = 2.5 ± 0.2V
    11. 5.11 Switching Characteristics, VCCA = 3.3 ± 0.3V
    12. 5.12 Switching Characteristics: Tsk, TMAX
    13. 5.13 Typical Characteristics
  7. 6 Parameter Measurement Information
    1. 6.1 Load Circuits
    2. 6.2 Voltage Waveforms
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Architecture
      2. 7.3.2 Input Driver Requirements
      3. 7.3.3 Power Up
      4. 7.3.4 Enable and Disable
      5. 7.3.5 Pullup and Pulldown Resistors on I/O Lines
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curve
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

8.3 Power Supply Recommendations

The TXS0204 device uses two separate configurable power-supply rails, VCCA and VCCB. VCCB accepts any supply voltage from 1.65V to 5.5V and VCCA accepts any supply voltage from 1.1V to 3.6V as long as Vs is less than or equal to VCCB. The A port and B port are designed to track VCCA and VCCB respectively allowing for low-voltage bidirectional translation between any of the 1.8V, 2.5V, 3.3V, and 5V voltage nodes.

The TXS0204 device does not require power sequencing between VCCA and VCCB during power-up so the power-supply rails can be ramped in any order. A VCCA value greater than or equal to VCCB (VCCA ≥ VCCB) does not damage the device.

The output-enable (OE) input circuit is designed so that it is supplied by VCCA and when the (OE) input is low, all outputs are placed in the high-impedance state. For the high-impedance state of the outputs during power up or power down, the OE input pin must be tied to GND through a pulldown resistor and must not be enabled until VCCA and VCCB are fully ramped and stable. The minimum value of the pulldown resistor to ground is determined by the current-sourcing capability of the driver.