ZHCSPB2J November   1998  – November 2021 CD54HC138 , CD54HC238 , CD54HCT138 , CD54HCT238 , CD74HC138 , CD74HC238 , CD74HCT138 , CD74HCT238

PRODUCTION DATA  

  1. 1 特性
  2. 2 说明
  3. 3 Revision History
  4. 4 Pin Configuration and Functions
    1.     5
  5. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 Recommended Operating Conditions
    3. 5.3 Thermal Information
    4. 5.4 Electrical Characteristics
    5. 5.5 Switching Characteristics (2)
  6. 6 Parameter Measurement Information
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Device Functional Modes
  8. 8 Power Supply Recommendations
  9. 9 Layout
    1. 9.1 Layout Guidelines
  10. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 接收文档更新通知
    3. 10.3 支持资源
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  11. 11Mechanical, 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)
  • |
  • N|16
  • D|16
散热焊盘机械数据 (封装 | 引脚)
订购信息

7.3 Device Functional Modes

Table 7-1 Function Table 'HC138, 'HCT138
INPUTS OUTPUTS
STROBE ADDRESS
G2 G1 G0 A2 A1 A0 Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7
X X H X X X H H H H H H H H
L X X X X X H H H H H H H H
X H X X X X H H H H H H H H
H L L L L L L H H H H H H H
H L L L L H H L H H H H H H
H L L L H L H H L H H H H H
H L L L H H H H H L H H H H
H L L H L L H H H H L H H H
H L L H L H H H H H H L H H
H L L H H L H H H H H H L H
H L L H H H H H H H H H H L

H = High Voltage Level, L = Low Voltage Level, X = Don’t Care

Table 7-2 Function Table 'HC238, 'HCT238
INPUTS OUTPUTS
STROBE ADDRESS
G2 G1 G0 A2 A1 A0 Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7
X X H X X X L L L L L L L L
L X X X X X L L L L L L L L
X H X X X X L L L L L L L L
H L L L L L H L L L L L L L
H L L L L H L H L L L L L L
H L L L H L L L H L L L L L
H L L L H H L L L H L L L L
H L L H L L L L L L H L L L
H L L H L H L L L L L H L L
H L L H H L L L L L L L H L
H L L H H H L L L L L L L H

H = High Voltage Level, L = Low Voltage Level, X = Don’t Care
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