SCDS423A October   2020  – May 2024 TMUX1575

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
    1.     Pin 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 Dynamic Characteristics
    7. 5.7 Timing Requirements
    8. 5.8 Typical Characteristics
  7. 6 Parameter Measurement Information
    1. 6.1  On-Resistance
    2. 6.2  Off-Leakage Current
    3. 6.3  On-Leakage Current
    4. 6.4  IPOFF Leakage Current
    5. 6.5  Transition Time
    6. 6.6  tON (EN) and tOFF (EN) Time
    7. 6.7  Break-Before-Make Delay
    8. 6.8  Charge Injection
    9. 6.9  Off Isolation
    10. 6.10 Channel-to-Channel Crosstalk
    11. 6.11 Bandwidth
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Bidirectional Operation
      2. 7.3.2 Beyond Supply Operation
      3. 7.3.3 1.2V Logic Compatible Inputs
      4. 7.3.4 Powered-off Protection
      5. 7.3.5 Fail-Safe Logic
      6. 7.3.6 Integrated Pull-Down Resistors
    4. 7.4 Device Functional Modes
      1. 7.4.1 Truth Tables
  9. 8 Application and Implementation
    1. 8.1 Typical Application
      1. 8.1.1 Design Requirements
      2. 8.1.2 Detailed Design Procedure
    2. 8.2 Power Supply Recommendations
    3. 8.3 Layout
      1. 8.3.1 Layout Guidelines
      2. 8.3.2 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
    1. 11.1 Mechanical Data

7.3.5 Fail-Safe Logic

The TMUX1575 has Fail-Safe Logic on the control input pins (SELx) which allows for operation up to 3.6V, regardless of the state of the supply pin. This feature allows voltages on the control pins to be applied before the supply pin, protecting the device from potential damage. Fail-Safe Logic minimizes system complexity by removing the need for power supply sequencing on the logic control pins. For example, the Fail-Safe Logic feature allows the select pins of the TMUX1575 to be ramped to 3.6V while VDD = 0V. Additionally, the feature enables operation of the TMUX1575 with VDD = 1.08V while allowing the select pins to interface with a logic level of another device up to 3.6V.