SCAS287V January   1993  – May 2024 SN54LVC74A , SN54LVC74A-SP , SN74LVC74A

PRODUCTION DATA  

  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: SN74LVC74A
    5. 5.5  Electrical Characteristics
    6. 5.6  Timing Requirements: SN54LVC74A
    7. 5.7  Timing Requirements: SN74LVC74A
    8. 5.8  Timing Requirements: SN74LVC74A, –40°C to 125°C and –40°C to 85°C
    9. 5.9  Switching Characteristics: SN54LVC74A
    10. 5.10 Switching Characteristics: SN74LVC74A
    11. 5.11 Switching Characteristics: SN74LVC74A, –40°C to 125°C and –40°C to 85°C
    12. 5.12 Operating Characteristics
    13. 5.13 Typical Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 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
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

7.4 Device Functional Modes

Table 7-1 describes the SNx4LVC74A functionality and interactions between the PRE, CLR, CLK, and D inputs.

Table 7-1 Function Table
INPUTSOUTPUTS
PRECLRCLKDQQ
LHXXHL
HLXXLH
LLXXH(1)H(1)
HH↑HHL
HH↑LLH
HHLXQ0Q0
(1) This configuration is nonstable; that is, it does not persist when PRE or CLR returns to its inactive (high) level.