SCLS345L May   1996  – July 2024 SN54AHC157 , SN74AHC157

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  ESD Ratings
    3. 4.3  Recommended Operating Conditions
    4. 4.4  Thermal Information
    5. 4.5  Electrical Characteristics
    6. 4.6  Switching Characteristics, VCC = 3.3V ± 0.3V
    7. 4.7  Switching Characteristics, VCC = 5V ± 0.5V
    8. 4.8  Noise Characteristics
    9. 4.9  Operating Characteristics
    10. 4.10 Typical Characteristics
  6. 5 Parameter Measurement Information
  7. 6 Detailed Description
    1. 6.1 Functional Block Diagram
    2. 6.2 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 Links
    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|16
  • J|16
  • FK|20
Thermal pad, mechanical data (Package|Pins)
Orderable Information

4.6 Switching Characteristics, VCC = 3.3V ± 0.3V

over recommended operating free-air temperature range, VCC = 3.3V ± 0.3V (unless otherwise noted) (see Load Circuit And Voltage Waveforms)
PARAMETER FROM
(INPUT)		 TO
(OUTPUT)		 LOAD
CAPACITANCE		 TA = 25°C TA = –55°C TO 125°C TA = –40°C TO 85°C TA = –40°C TO 125°C UNIT
Recommended
SN54AHC157 SN74AHC157 SN74AHC157
TYP MAX MIN MAX MIN MAX MIN MAX
tPLH A or B Y CL = 15pF 6.2(1) 9.7(1) 1(1) 11.5(1) 1 11.5 1 11.5 ns
tPHL 6.2(1) 9.7(1) 1(1) 11.5(1) 1 11.5 1 11.5
tPLH A/ B Y CL = 15pF 8.4(1) 13.2(1) 1(1) 15.5(1) 1 15.5 1 15.5 ns
tPHL 8.4(1) 13.2(1) 1(1) 15.5(1) 1 15.5 1 15.5
tPLH G Y CL = 15pF 8.7(1) 13.6(1) 1(1) 16(1) 1 16 1 16 ns
tPHL 8.7(1) 13.6(1) 1(1) 16(1) 1 16 1 16
tPLH A or B Y CL = 50pF 8.7 13.2 1 15 1 15 1 15 ns
tPHL 8.7 13.2 1 15 1 15 1 15
tPLH A/ B Y CL = 50pF 10.9 16.7 1 19 1 19 1 19 ns
tPHL 10.9 16.7 1 19 1 19 1 19
tPLH G Y CL = 50pF 11.2 17.1 1 19.5 1 19.5 1 19.5 ns
tPHL 11.2 17.1 1 19.5 1 19.5 1 19.5
(1) On products compliant to MIL-PRF-38535, this parameter is not production tested.