SCLS113F December   1982  – February 2025 SN54HC157 , SN54HC157-SP , SN74HC157

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 Switching Characteristics
    6. 4.6 Operating Characteristics
  6. 5 Parameter Measurement Information
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Standard CMOS Inputs
      2. 6.3.2 TTL-Compatible CMOS Inputs
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
        1. 7.2.1.1 Power Considerations
        2. 7.2.1.2 Input Considerations
        3. 7.2.1.3 Output Considerations
      2. 7.2.2 Detailed Design Procedure
      3. 7.2.3 Application Curve
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support
      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

4.4 Electrical Characteristics

over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS(1) VCC TA = 25°C SN54HC157 SN74HC157 UNIT
MIN TYP MAX MIN MAX MIN MAX
VOH IOH = −20 μA 2 V 1.9 1.998 1.9 1.9 V
4.5 V 4.4 4.499 4.4 4.4
6 V 5.9 5.999 5.9 5.9
IOH = −6 mA 4.5 V 3.98 4.3 3.7 3.7
IOH = −7.8 mA 6 V 5.48 5.8 5.2 5.2
VOL IOL = 20 μA 2 V 0.002 0.1 0.1 0.1 V
4.5 V 0.001 0.1 0.1 0.1
6 V 0.001 0.1 0.1 0.1
IOL = 6 mA 4.5 V 0.17 0.26 0.4 0.4
IOL = 7.8 mA 6 V 0.15 0.26 0.4 0.4
II VI = VCC or 0 6 V ±0.1 ±100 ±1000 ±1000 nA
ICC VI = VCC or 0 IO = 0 6 V 8 160 160 μA
Ci 2 V to 6 V 3 10 10 10 pF
(1) VI = VIH or VIL, unless otherwise noted.