SCASE86 April   2025 SN74ACT257-Q1

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
    5. 5.5 Electrical Characteristics
    6. 5.6 Switching Characteristics
    7. 5.7 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
      1. 7.3.1 Balanced CMOS 3-State Outputs
      2. 7.3.2 TTL-Compatible CMOS Inputs
      3. 7.3.3 Wettable Flanks
      4. 7.3.4 Clamp Diode Structure
    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
        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
  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

5.6 Switching Characteristics

CL = 50pF; over operating free-air temperature range; typical values measured at TA = 25°C (unless otherwise noted). See Parameter Measurement Information
PARAMETER FROM (INPUT) TO (OUTPUT) VCC -40°C to 125°C UNIT
MIN TYP MAX
tPLH A or B Y 5V 3.7 5.7 7.4 ns
tPHL 5V 4.3 6 7.7 ns
tPLH A/B Y 5V 4.2 6.3 8.2 ns
tPHL 5V 4.5 6.2 8 ns
tPZL OE Y 5V 4.9 6.9 8.9 ns
tPZH 5V 5.3 7.3 9.3 ns
tPLZ OE Y 5V 3 4.3 5.6 ns
tPHZ 5V 4.5 6.4 8.1 ns
tr Y 5V 1.8 3.4 4.6 ns
tf 5V 1.9 3 3.9 ns