SCAS521G August   1995  – July 2024 SN54AC74 , SN74AC74

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Description
  4. 3 Pin Configuration and Functions
  5. 4 Specifications
    1. 4.1 Absolute Maximum Ratings
    2. 4.2 Recommended Operating Conditions
    3. 4.3 Thermal Information
    4. 4.4 Electrical Characteristics
    5. 4.5 Timing Requirements, VCC = 3.3 V ± 0.3 V
    6. 4.6 Timing Requirements, VCC = 5 V ± 0.5 V
    7. 4.7 Switching Characteristics, VCC = 3.3 V ± 0.3 V
    8. 4.8 Switching Characteristics, VCC = 5 V ± 0.5 V
    9. 4.9 Operating Characteristics
  6. 5 Parameter Measurement Information
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Power Supply Recommendations
    2. 7.2 Layout
      1. 7.2.1 Layout Guidelines
      2. 7.2.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support (Analog)
      1. 8.1.1 Related Documentation
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

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

4.7 Switching Characteristics, VCC = 3.3 V ± 0.3 V

over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V (unless otherwise noted) (see Load Circuit and Voltage Waveforms)
PARAMETER FROM (INPUT) TO (OUTPUT) TA = 25°C SN54AC74 SN74AC74 UNIT
MIN TYP MAX MIN MAX MIN MAX
fmax 100 125 70 95 MHz
tPLH PRE or CLR Q or Q 3.5 8 12 1 13 2.5 13 ns
tPHL 4 10.5 12 1 14 3.5 13.5
tPLH CLK Q or Q 4.5 8 13.5 1 17.5 4 16 ns
tPHL 3.5 8 14 1 13.5 3.5 14.5