SCHS168E November   1998  – March 2022 CD54HC243 , CD74HC243 , CD74HCT243

PRODUCTION DATA  

  1. 1 Features
  2. 2 Description
  3. 3 Revision History
  4. 4 Pin Configuration and Functions
  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
  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 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  11. 11Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • J|14
Thermal pad, mechanical data (Package|Pins)
Orderable Information

2 Description

The CDx4HC243 and CDx4HCT243 are quad bus transceivers with 3-state outputs. The OEA and OEB inputs control both the high-impedance state as well as the direction of communication through the device.

Device Information
PART NUMBER PACKAGE(1) BODY SIZE (NOM)
CD54HC243F CDIP (14) 19.55 mm × 6.71 mm
CD74HC243E PDIP (14) 19.31 mm × 6.35 mm
CD74HC243M SOIC (14) 8.65 mm × 3.90 mm
CD74HCT243E PDIP (14) 19.31 mm × 6.35 mm
CD74HCT243M SOIC (14) 8.65 mm × 3.90 mm
(1) For all packages see the orderable addendum at the end of the datasheet.
GUID-20220301-SS0I-ZPPW-1KMT-GFV22VXFGHMV-low.gif Functional Block Diagram