SCHS174D February   1998  – October 2025 CD54HC273 , CD54HCT273 , CD74HC273 , CD74HCT273

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3.   3
  4. 2 Applications
  5. 3 Description
  6. 4 Pin Configuration and Functions
  7. 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 Timing Requirements
    6. 5.6 Switching Characteristics
    7. 5.7 Typical Characteristics
  8. 6 Parameter Measurement Information
  9.   16
  10. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Balanced CMOS Push-Pull Outputs
      2. 7.3.2 Standard CMOS Inputs
      3. 7.3.3 TTL-Compatible CMOS Inputs
      4. 7.3.4 Clamp Diode Structure
    4. 7.4 Device Functional Modes
  11. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
        1. 8.2.1.1 Power Considerations
        2. 8.2.1.2 Input Considerations
        3. 8.2.1.3 Output Considerations
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curve
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  12. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    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
  13. 10Revision History
  14. 11Mechanical, Packaging, and Orderable Information

8.4.2 Layout Example

CD54HC273 CD74HC273 CD54HCT273 CD74HCT273 Example Trace Corners for Improved Signal Integrity Figure 8-3 Example Trace Corners for Improved Signal Integrity
CD54HC273 CD74HC273 CD54HCT273 CD74HCT273 Example Bypass Capacitor Placement for TSSOP and Similar PackagesFigure 8-4 Example Bypass Capacitor Placement for TSSOP and Similar Packages
CD54HC273 CD74HC273 CD54HCT273 CD74HCT273 Example Bypass Capacitor Placement for SOT, SC70 and Similar PackagesFigure 8-6 Example Bypass Capacitor Placement for SOT, SC70 and Similar Packages
CD54HC273 CD74HC273 CD54HCT273 CD74HCT273 Example Bypass Capacitor Placement for WQFN and Similar PackagesFigure 8-5 Example Bypass Capacitor Placement for WQFN and Similar Packages
CD54HC273 CD74HC273 CD54HCT273 CD74HCT273 Example Damping Resistor Placement for Improved Signal Integrity Figure 8-7 Example Damping Resistor Placement for Improved Signal Integrity