SCLS117F December   1982  – May 2025 SN54HC166 , SN54HC166-SP , SN74HC166

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 Recommended Operating Conditions
    3. 5.3 Thermal Information
    4. 5.4 Electrical Characteristics
    5. 5.5 Timing Requirements
    6.     12
    7. 5.6 Switching Characteristics
    8. 5.7 Operating 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 Standard CMOS Inputs
      2. 7.3.2 TTL-Compatible CMOS Inputs
    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 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

5.6 Switching Characteristics

over recommended operating free-air temperature range, CL = 50pF (unless otherwise noted) (see Figure 6)
PARAMETER FROM
(INPUT)		 TO
(OUTPUT)		 VCC (V) TA = 25°C SN54HC166 SN74HC166 UNIT
MIN TYP MAX MIN MAX MIN MAX
fmax 2 6 11 4.2 4.2 MHz
4.5 31 36 21 21
6 36 45 25 25
tPHL CLR QH 2 62 120 180 180 ns
4.5 18 24 36 36
6 13 20 31 31
tpd CLK QH 2 75 150 225 225 ns
4.5 15 30 45 45
6 13 26 38 38
tt Any 2 38 75 110 110 ns
4.5 8 15 22 22
6 6 13 19 19