SCLS266O December   1995  – July 2024 SN54AHCT138 , SN74AHCT138

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 ESD Ratings
    3. 4.3 Recommended Operating Conditions
    4. 4.4 Thermal Information
    5. 4.5 Electrical Characteristics
    6. 4.6 Switching Characteristics
    7. 4.7 Operating Characteristics
    8. 4.8 Typical Characteristics
  6. 5 Parameter Measurement Information
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Device Functional Modes
  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
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support
      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)
  • DB|16
  • PW|16
  • NS|16
  • N|16
  • RGY|16
  • D|16
  • DGV|16
Thermal pad, mechanical data (Package|Pins)
Orderable Information

3 Pin Configuration and Functions

SN54AHCT138 SN74AHCT138 SN54AHCT138 J or W Package; SN74AHCT138 D, DB, DGV, N, NS, or PW Package (Top View)Figure 3-1 SN54AHCT138 J or W Package; SN74AHCT138 D, DB, DGV, N, NS, or PW Package (Top View)
SN54AHCT138 SN74AHCT138 SN54AHCT138 FK Package (Top View)Figure 3-3 SN54AHCT138 FK Package (Top View)
SN54AHCT138 SN74AHCT138 SN74AHCT138 RGY Package (Top View)Figure 3-2 SN74AHCT138 RGY Package (Top View)
Table 3-1 Pin Functions
PIN TYPE(1) DESCRIPTION
NAME NO.
A 1 I Input A
B 2 I Input B
C 3 I Input C
G2A 4 I Strobe Input 2A, active low
G2B 5 I Strobe Input 2B, active low
G1 6 I Strobe Input
Y7 7 O Output 7
GND 8 G Ground
Y6 9 O Output 6
Y5 10 O Output 5
Y4 11 O Output 4
Y3 12 O Output 3
Y2 13 O Output 2
Y1 14 O Output 1
Y0 15 O Output 0
VCC 16 P Positive Supply
Thermal Pad(2) — Thermal Pad
(1) I = Input, O = Output, I/O = Input or Output, G = Ground, P = Power.
(2) BQB package only