SCES692E June   2008  – September 2024 SN74AVC2T245

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 = 1.2 V
    7. 5.7  Switching Characteristics: VCCA = 1.5 V ± 0.1 V
    8. 5.8  Switching Characteristics: VCCA = 1.8 V ± 0.15 V
    9. 5.9  Switching Characteristics: VCCA = 2.5 V ± 0.2 V
    10. 5.10 Switching Characteristics: VCCA = 3.3 V ± 0.3 V
    11. 5.11 Operating Characteristics
    12. 5.12 Typical Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Fully Configurable Dual-Rail Design Allows Each Port to Operate Over the Full 1.2 V to 3.6 V Power-Supply Range
      2. 7.3.2 Partial-Power-Down Mode Operation
      3. 7.3.3 VCC Isolation
    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
        1. 8.2.2.1 Input Voltage Ranges
        2. 8.2.2.2 Output Voltage Range
      3. 8.2.3 Application Curves
  10. 9 Power Supply Recommendations
  11. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  12. 11Device and Documentation Support
    1. 11.1 Receiving Notification of Documentation Updates
    2. 11.2 Support Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  13. 12Revision History
  14. 13Mechanical, Packaging, and Orderable Information

7.4 Device Functional Modes

The SN74AVC2T245 is a voltage level translator that can operate from1.2 V to 3.6 V (VCCA) and 1.2 V to 3.6 V (VCCB). The signal translation requires direction control and output enable control. The table below enlists the operation of the part for the respective states of the control inputs.

Table 7-1 Function Table (Each Transceiver)
CONTROL INPUTS (1) OUTPUT CIRCUITS OPERATION
OE DIR1 A PORT B PORT
L L Enabled Hi-Z B data to A data
L H Hi-Z Enabled A data to B data
H X Hi-Z Hi-Z Isolation
(1) Input circuits of the data I/Os are always active.