SCAS584O November   1996  – May 2026 SN74LVCC4245A

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
    7. 5.7 Operating Characteristics
    8. 5.8 Typical Characteristics
  7. 6 Parameter Measurement Information For A to B VCCA = 4.5V to 5.5V and VCCB = 2.7V to 3.6V
  8. 7 Parameter Measurement Information For A to B VCCA = 4.5V to 5.5V and VCCB = 3.6V to 5.5V
  9. 8 Parameter Measurement Information For B to A VCCA = 4.5V to 5.5V and VCCB = 2.7V to 3.6V
  10. 9 Parameter Measurement Information For B to A VCCA = 4.5V to 5.5V and VCCB = 3.6V to 5.5V
  11. 10Detailed Description
    1. 10.1 Overview
    2. 10.2 Functional Block Diagram
    3. 10.3 Feature Description
      1. 10.3.1 Glitch-free Power Supply Sequencing
      2. 10.3.2 VCC Isolation and VCC Disconnect
    4. 10.4 Device Functional Modes
  12. 11Application and Implementation
    1. 11.1 Application Information
    2. 11.2 Typical Application
      1. 11.2.1 Design Requirements
      2. 11.2.2 Detailed Design Procedure
      3. 11.2.3 Application Curves
    3. 11.3 Power Supply Recommendations
    4. 11.4 Layout
      1. 11.4.1 Layout Guidelines
      2. 11.4.2 Layout Example
  13. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Support Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  14. 13Revision History
  15. 14Mechanical, Packaging, and Orderable Information

10.1 Overview

SN74LVCC4245A is an 8-bit (octal) noninverting bus transceiver contains two separate supply rails; B port has VCCB, which is set at 3.3V, and A port has VCCA, which is set at 5V. This allows for translation from a 3.3V to a 5V environment, and vice versa, designed for asynchronous communication between data buses. Glitch-free power supply sequencing allows either supply rail to be powered on or off in any order while providing robust power sequencing performance. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so the buses are effectively isolated. The control circuitry (DIR, OE) is powered by VCCA.