SCES677F September   2006  – June 2024 SN74LVC1T45-Q1

PRODUCTION DATA  

  1.   1
  2. 1Features
  3. 2Applications
  4. 3Description
  5. 4Pin Configuration and Functions
  6. 5Specifications
    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  Switching Characteristics: VCCA = 1.8V ±0.15V
    7. 5.7  Switching Characteristics: VCCA = 2.5V ±0.2V
    8. 5.8  Switching Characteristics: VCCA = 3.3V ±0.3V
    9. 5.9  Switching Characteristics: VCCA = 5V ±0.5V
    10. 5.10 Typical Characteristics
  7.   Parameter Measurement Information
  8. 6Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Glitch-Free Power Supply Sequencing
    4. 6.4 Device Functional Modes
  9.   Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Enable Times
    2. 7.2 Typical Applications
      1. 7.2.1 Unidirectional Logic Level-Shifting Application
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
        3. 7.2.1.3 Application Curves
      2. 7.2.2 Bidirectional Logic Level-Shifting Application
        1. 7.2.2.1 Detailed Design Procedure
        2. 7.2.2.2 Application Curves
    3.     35
    4. 7.3 Power Supply Recommendations
    5. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  10. 7Device and Documentation Support
    1. 7.1 Documentation Support
      1. 7.1.1 Related Documentation
    2. 7.2 Receiving Notification of Documentation Updates
    3. 7.3 Support Resources
    4. 7.4 Trademarks
    5. 7.5 Electrostatic Discharge Caution
    6. 7.6 Glossary
  11. 8Revision History
  12. 9Mechanical, Packaging, and Orderable Information

6.3 Feature Description

The SN74LVC1T45-Q1 has a fully configurable dual-rail design that allows each port to operate over the full 1.65V to 5.5V power-supply range. Both VCCA and VCCB can be supplied at any voltage between 1.65V and 5.5V, making the device suitable for translating between any of the voltage nodes (1.8V, 2.5V, 3.3V, and 5V).

SN74LVC1T45-Q1 can support high data rate applications. The translated signal data rate can be up to 420Mbps when the signal is translated from 3.3V to 5V.

Ioff prevents backflow current by disabling I/O output circuits when device is in partial-power-down mode.