ZHCSPK2 December   2022

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions (1)
    4. 6.4  Thermal Information
    5. 6.5  Electrical Characteristics
    6. 6.6  Switching Characteristics - VCC = 2.5 V ± 0.25 V
    7. 6.7  Switching Characteristics - VCC = 3.3 V ± 0.3 V
    8. 6.8  Switching Characteristics - VCC = 5 V ± 0.5 V
    9. 6.9  Operating Characteristics
    10. 6.10 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Standard CMOS Inputs
      2. 8.3.2 Balanced CMOS Push-Pull Outputs
      3. 8.3.3 Partial Power Down (Ioff)
      4. 8.3.4 Wettable Flanks
      5. 8.3.5 Clamp Diode Structure
    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 Power Considerations
      2. 9.2.2 Input Considerations
      3. 9.2.3 Output Considerations
      4. 9.2.4 Detailed Design Procedure
      5. 9.2.5 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 接收文档更新通知
    2. 12.2 支持资源
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 术语表
  13. 13Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

3 说明

SN74LV138A-Q1 器件是旨在于 2V 至 5.5V VCC 下运行的 3 线至 8 线解码器/多路解复用器。

二进制选择输入（A0、A1、A2）和三个使能输入（G2、G0、G1）条件可从八条输出线路中选择其中一条。两个低电平有效使能输入（G0、G1）和一个高电平有效使能输入 (G2) 可在扩展时减少对外部门电路或反相器的需求。

器件信息
器件型号封装(1)封装尺寸
SN74LV138A-Q1

BQB（WQFN，16）

3.60mm × 2.60mm
(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-20210723-CA0I-1CJ3-MQFG-1GVMRTBQ6B2P-low.gif逻辑图（正逻辑）