JAJSUL0P January   1993  – May 2024 SN54LVC257A , SN74LVC257A

PRODUCTION DATA  

  1.   1
  2. 1 特長
  3. 2 アプリケーション
  4. 3 概要
  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, SN54LVC257A
    7. 5.7 Switching Characteristics, SN74LVC257A
    8. 5.8 Operating Characteristics
    9. 5.9 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
    4. 7.4 Device Functional Modes
  9.   Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 8 Device and Documentation Support
    1. 8.1 Documentation Support (Analog)
      1. 8.1.1 Related Documentation
      2. 8.1.2 Related Links
    2. 8.2 Community Resources
    3. 8.3 ドキュメントの更新通知を受け取る方法
    4. 8.4 サポート・リソース
    5. 8.5 Trademarks
    6. 8.6 静電気放電に関する注意事項
    7. 8.7 用語集
  11. 9 Revision History
  12. 10Mechanical, Packaging, and Orderable Information

5.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)(1)
SN54LVC257A SN74LVC257A UNIT
MIN MAX MIN MAX
VCC Supply voltage Operating 2 3.6 1.65 3.6 V
Data retention only 1.5 1.5
VIH High-level input voltage VCC = 1.65 V to 1.95 V 0.65 × VCC V
VCC = 2.3 V to 2.7 V 1.7
VCC = 2.7 V to 3.6 V 2 2
VIL Low-level input voltage VCC = 1.65 V to 1.95 V 0.35 × VCC V
VCC = 2.3 V to 2.7 V 0.7
VCC = 2.7 V to 3.6 V 0.8 0.8
VI Input voltage 0 5.5 0 5.5 V
VO Output voltage 0 VCC 0 VCC V
IOH High-level output current VCC = 1.65 V –4 mA
VCC = 2.3 V –8
VCC = 2.7 V –12 –12
VCC = 3 V –24 –24
IOL Low-level output current VCC = 1.65 V 4 mA
VCC = 2.3 V 8
VCC = 2.7 V 12 12
VCC = 3 V 24 24
Δt/Δv Input transition rise or fall rate 10 10 ns/V
TA Operating free-air temperature –55 125 –40 85 °C
(1) All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, SCBA004.