JAJSOT9C February   2014  – June 2022 SN74LV4T125

PRODUCTION DATA  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Switching Characteristics
    7. 6.7 Noise Characteristics
    8. 6.8 Operating Characteristics
    9. 6.9 Typical Characteristics
  7. 7 Parameter Measurement Information
    1. 7.1 18
  8. 8 Detailed Description
    1. 8.1 Overview
      1. 8.1.1 Translating Down
      2. 8.1.2 Translating Up
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
    4. 8.4 Device Functional Modes
  9. 9 Applications and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Additional Product Selection
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 サポート・リソース
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

8.1.2 Translating Up

Using the SN74LVxTxx family to translate up is very simple. The input switching threshold is lowered so the high level of the input voltage can be much lower than a typical CMOS VIH. For instance, If the VCC is 3.3 V then the typical CMOS switching threshold would be VCC / 2 or 1.65 V. This means the input high level must be at least VCC × 0.7 or 2.31 V. On the LVxT devices the input threshold for 3.3-V VCC is approximately 1 V. This allows a signal with a 1.8-V VIH to be translated up to the VCC level of 3.3 V.

Up translation possibilities with SN74LVxTxx:

  • With 2.5-V VCC from 1.8 V to 2.5 V.
  • With 3.3-V VCC from 1.8 V or 2.5 V to 3.3 V.
  • With 5-V VCC From 2.5 V or 3.3 V to 5 V.