SCES880D August   2019  – January 2024 SN74AXC2T45

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  Switching Characteristics, VCCA = 0.7 ± 0.05V
    7. 5.7  Switching Characteristics, VCCA = 0.8 ± 0.04V
    8. 5.8  Switching Characteristics, VCCA = 0.9 ± 0.045V
    9. 5.9  Switching Characteristics, VCCA = 1.2 ± 0.1V
    10. 5.10 Switching Characteristics, VCCA = 1.5 ± 0.1V
    11. 5.11 Switching Characteristics, VCCA = 1.8 ± 0.15V
    12. 5.12 Switching Characteristics, VCCA = 2.5 ± 0.2V
    13. 5.13 Switching Characteristics, VCCA = 3.3 ± 0.3V
    14. 5.14 Operating Characteristics: TA = 25°C
    15. 5.15 Typical Characteristics
  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  Standard CMOS Inputs
      2. 7.3.2  Balanced High-Drive CMOS Push-Pull Outputs
      3. 7.3.3  Partial Power Down (Ioff)
      4. 7.3.4  VCC Isolation
      5. 7.3.5  Over-voltage Tolerant Inputs
      6. 7.3.6  Glitch-Free Power Supply Sequencing
      7. 7.3.7  Negative Clamping Diodes
      8. 7.3.8  Fully Configurable Dual-Rail Design
      9. 7.3.9  I/Os with Integrated Static Pull-Down Resistors
      10. 7.3.10 Supports High-Speed Translation
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Enable Times
    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

Package Options

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

7.1 Overview

The SN74AXC2T45 is a 2-bit, dual-supply non-inverting bidirectional voltage level translation device. Ax pins and the DIR pin are referenced to VCCA logic levels, and Bx pins are referenced to VCCB logic levels. The A port is able to accept I/O voltages ranging from 0.65V to 3.6V, while the B port can accept I/O voltages from 0.65V to 3.6V. A high on DIR enables data transmission from A to B and a low on DIR enables data transmission from B to A. See Section 7.4 for a summary of the operation of the control logic.