SCLS260M December   1995  – May 2016 SN54AHC540 , SN74AHC540

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  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
    4. 6.4  Thermal Information
    5. 6.5  Electrical Characteristics
    6. 6.6  Switching Characteristics, VCC = 3.3 V ± 0.3 V
    7. 6.7  Switching Characteristics, VCC = 5 V ± 0.5 V
    8. 6.8  Noise Characteristics
    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
    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
    1. 10.1 Layout Guidelines
  11. 11Layout
    1. 11.1 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Community Resources
    2. 12.2 Related Links
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DGV|20
  • DB|20
  • N|20
  • DW|20
  • PW|20
Thermal pad, mechanical data (Package|Pins)
Orderable Information

5 Pin Configuration and Functions

SN54AHC540: J or W Package; SN74AHC540: DB, DGV, DW, N, NS, or PW Package
SN54AHC540: 20-Pin CDIP or CFP; SN74AHC540: 20-Pin SSOP, TVSOP, SOIC, PDIP, PDIP, or TSSOP
Top View
SN54AHC540: FK Package
20-Pin LCCC
Top View

Pin Functions

PIN I/O DESCRIPTION
NO. NAME
1 OE1 I Output Enable 1
2 A1 I A1 Input
3 A2 I A2 Input
4 A3 I A3 Input
5 A4 I A4 Input
6 A5 I A5 Input
7 A6 I A6 Input
8 A7 I A7 Input
9 A8 I A8 Input
10 GND — Ground
11 Y8 O Y8 Output
12 Y7 O Y7 Output
13 Y6 O Y6 Output
14 Y5 O Y5 Output
15 Y4 O Y4 Output
16 Y3 O Y3 Output
17 Y2 O Y2 Output
18 Y1 O Y1 Output
19 OE2 I Output Enable 2
20 VCC — Power Pin