ZHCSQK2F December   1982  – May 2022 SN54HC244 , SN74HC244

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  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  Electrical Characteristics – SN54HC244
    7. 6.7  Electrical Characteristics – SN74HC244
    8. 6.8  Switching Characteristics
    9. 6.9  Switching Characteristics – CL = 50 pF
    10. 6.10 Switching Characteristics – CL = 150 pF
    11. 6.11 Typical Characteristic
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
    4. 8.4 Device Functional Modes
  9. 9 Application 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 Curve
  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 Related Links
    2. 12.2 接收文档更新通知
    3. 12.3 支持资源
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 术语表
  13. 13Mechanical, Packaging, and Orderable Information

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • DB|20
  • NS|20
  • N|20
  • DW|20
  • PW|20
散热焊盘机械数据 (封装 | 引脚)
订购信息

3 说明

SNx4HC244 八路缓冲器和线路驱动器专门设计用于提高三态存储器地址驱动器、时钟驱动器以及总线导向接收器和发送器的性能和密度。SNx4HC244 器件配备两个具有独立输出使能 (OE) 输入的 4 位缓冲器和驱动器。当 OE 为低电平时，该器件将来自 A 输入的同相数据传递到 Y 输出。当 OE 为高电平时，输出处于高阻态。

器件信息
器件型号封装（引脚）(1)封装尺寸（标称值）
SN54HC244CDIP (20)6.92mm × 24.38mm
CFP (20)6.92mm × 13.72mm
LCCC (20)8.89mm × 8.89mm
SN74HC244DBSSOP (20)5.30mm × 7.25mm
SN74HC244DWSOIC (20)7.50mm × 12.80mm
SN74HC244NPDIP (20)6.30mm × 25.40mm
SN74HC244NSSOP (20)5.30mm × 12.60mm
SN74HC244PWTSSOP (20)4.40mm × 6.50mm
(1) 如需了解所有可用封装，请参阅数据表末尾的可订购产品附录。
GUID-BBCC3747-32E0-4871-BFD2-722693361049-low.gif逻辑图（正逻辑）