SCES992 May   2025 TXG8020-Q1 , TXG8021-Q1

ADVANCE INFORMATION  

  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 Electrical Characteristics
    5. 5.5 Switching Characteristics, VCCA = 1.8 ± 0.15V
    6. 5.6 Switching Characteristics, VCCA = 2.5 ± 0.2V
    7. 5.7 Switching Characteristics, VCCA = 3.3 ± 0.3V
    8. 5.8 Switching Characteristics, VCCA = 5.0 ± 0.5V
    9. 5.9 Switching Characteristics: Tsk, TMAX
  7. 6 Parameter Measurement Information
    1. 6.1 Load Circuit and 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 CMOS Schmitt-Trigger Inputs with Integrated Pulldowns
        1. 7.3.1.1 Inputs with Integrated Static Pull-Down Resistors
      2. 7.3.2 Balanced High-Drive CMOS Push-Pull Outputs
      3. 7.3.3 VCC Disconnect
      4. 7.3.4 Over-Voltage Tolerant Inputs
      5. 7.3.5 Glitch-Free Power Supply Sequencing
      6. 7.3.6 Negative Clamping Diodes
      7. 7.3.7 Fully Configurable Dual-Rail Design
      8. 7.3.8 Supports High-Speed Translation
      9. 7.3.9 AC Noise Rejection
    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 Curves
    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 Device Support
      1. 9.1.1 Regulatory Requirements
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 Receiving Notification of Documentation Updates
    4. 9.4 Support Resources
    5. 9.5 Trademarks
    6. 9.6 Electrostatic Discharge Caution
    7. 9.7 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

8.1 Application Information

The TXG802x-Q1 is used for level translation, enabling communication between devices or systems operating at different interface and ground voltages. The TXG802x-Q1 device is ideal for use in applications where a push-pull driver is connected to the data inputs. Figure 8-1 is an example of two systems that translate from 1.8V to 3.3V while also experiencing a ground shift of 5V. The ground shift occurs due to the parasitic resistance of the cable used to connect the 48V battery ground and 12V battery ground to the chassis of the car.