SCAS512G June   1995  – March 2024 SN54AC240 , SN74AC240

PRODMIX  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Switching Characteristics, VCC = 3.3 V ± 0.3 V
    7. 5.7 Switching Characteristics, VCC = 5 V ± 0.5 V
    8. 5.8 Operating Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Power Supply Recommendations
    2. 8.2 Layout
      1. 8.2.1 Layout Guidelines
        1. 8.2.1.1 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Links
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

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

3 Description

These octal buffers and line drivers are designed specifically to improve the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters.
Package Information
PART NUMBER PACKAGE(1) PACKAGE SIZE(2) BODY SIZE(3)
SN54AC240 J (CDIP, 20) 24.2mm x 7.62mm 24.2mm × 6.92mm
W (CFP, 20) 13.09mm x 8.13mm 13.09mm × 6.92mm
SN74AC240 N (PDIP, 20) 24.33mm × 9.4mm 24.33 mm × 6.35 mm
DW (SOIC, 20) 12.8mm × 10.3mm 12.8mm × 7.5mm
NS (SOP, 20) 12.6mm × 7.8mm 12.6mm × 5.3mm
DB (SSOP, 20) 7.2mm × 7.8mm 7.2mm × 5.3mm
PW (TSSOP, 20) 6.5mm × 6.4mm 6.5mm × 4.4mm
(1) For more information, see Section 11.
(2) The package size (length × width) is a nominal value and includes pins, where applicable.
(3) The body size (length × width) is a nominal value and does not include pins.
GUID-C97CFB3D-AD6C-4F4F-97BD-70635B4AF5C4-low.pngLogic Diagram (Positive Logic)