SCES639E January   2007  – March 2023 TXB0101

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specification
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information
    5. 6.5  Electrical Characteristics
    6. 6.6  Timing Requirements, VCCA = 1.2 V
    7. 6.7  Timing Requirements, VCCA = 1.5 V ± 0.1 V
    8. 6.8  Timing Requirements, VCCA = 1.8 V ± 0.15 V
    9. 6.9  Timing Requirements, VCCA = 2.5 V ± 0.2 V
    10. 6.10 Timing Requirements, VCCA = 3.3 V ± 0.3 V
    11. 6.11 Switching Characteristics, VCCA = 1.2 V
    12. 6.12 Switching Characteristics, VCCA = 1.5 V ± 0.1 V
    13. 6.13 Switching Characteristics, VCCA = 1.8 V ± 0.15 V
    14. 6.14 Switching Characteristics, VCCA = 2.5 V ± 0.2 V
    15. 6.15 Switching Characteristics, VCCA = 3.3 V ± 0.3 V
    16. 6.16 Operating Characteristics
    17. 6.17 Typical Characteristics
      1.      Parameter Measurement Information
  7. 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 Power Up
      3. 7.3.3 Enable and Disable
      4. 7.3.4 Pullup or Pulldown Resistors on I/O Lines
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
        1. 8.2.1.1 Input Driver 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
  9. 9 Device and Documentation Support
    1. 9.1 Receiving Notification of Documentation Updates
    2. 9.2 Support Resources
    3. 9.3 Trademarks
    4. 9.4 Electrostatic Discharge Caution
    5. 9.5 Glossary
  10. 10Mechanical, Packaging, and Orderable Information

Package Options

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

8.3 Power Supply Recommendations

During operation, ensure that VCCA ≤ VCCB at all times. During power up sequencing, VCCA ≥ VCCB does not damage the device, so any power supply can be ramped up first. The TXB0101 has circuitry that disables all output ports when either VCC is switched off (VCCA/B = 0 V). 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. To ensure 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