SCLS258N December   1995  – July 2024 SN54AHC138 , SN74AHC138

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Description
  4. 3 Pin Configuration and Functions
  5. 4 Specifications
    1. 4.1 Absolute Maximum Ratings
    2. 4.2 Recommended Operating Conditions
    3. 4.3 Thermal Information
    4. 4.4 Electrical Characteristics
    5. 4.5 Switching Characteristics: VCC = 3.3V ± 0.3V
    6. 4.6 Switching Characteristics: VCC = 5V ± 0.5V
    7. 4.7 Operating Characteristics
  6. 5 Parameter Measurement Information
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Function Table
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Power Supply Recommendations
    3. 7.3 Layout
      1. 7.3.1 Layout Guidelines
      2. 7.3.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support (Analog)
      1. 8.1.1 Related Links
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • W|16
  • J|16
  • FK|20
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.1 Application Information

SN54AHC138 SN74AHC138 24-Bit Decoding Scheme Figure 7-1 24-Bit Decoding Scheme
SN54AHC138 SN74AHC138 32-Bit Decoding Scheme Figure 7-2 32-Bit Decoding Scheme