SCLS352I July   1997  – January 2025 SN54AHC123A , SN74AHC123A

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  Timing Requirements, VCC = 3.3V ± 0.3V
    7. 4.7  Timing Requirements, VCC = 5 V ± 0.5 V
    8. 4.8  Switching Characteristics, VCC = 3.3V ± 0.3V
    9. 4.9  Switching Characteristics, VCC = 5V ± 0.5V
    10. 4.10 Operating Characteristics
    11. 4.11 Input/Output Timing Diagram
  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 Application Information
      1. 7.1.1 Caution in Use
      2. 7.1.2 Output Pulse Duration
      3. 7.1.3 Power-down Considerations
      4. 7.1.4 Retriggering Data
    2. 7.2 Power Supply Recommendations
    3. 7.3 Layout
      1. 7.3.1 Layout Guidelines
      2. 7.3.2 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

4.5 Electrical Characteristics

over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS VCC TA = 25°C SN54AHC123A SN74AHC123A UNIT
MIN TYP MAX MIN MAX MIN MAX
VOH IOH = −50mA 2V 1.9 2 1.9 1.9 V
3V 2.9 3 2.9 2.9
4.5V 4.4 4.5 4.4 4.4
IOH = −4mA 3V 2.58 2.48 2.48
IOH = −8mA 4.5V 3.94 3.8 3.8
VOL IOL = 50mA 2V 0.1 0.1 0.1 V
3V 0.1 0.1 0.1
4.5V 0.1 0.1 0.1
IOL = 4mA 3V 0.36 0.5 0.44
IOL = 8mA 4.5V 0.36 0.5 0.44
II Rext/Cext (2) VI = VCC or GND 5.5V ±0.25 ±2.5 ±2.5 μA
A, B, and CLR VI = VCC or GND 0V to 5.5V ±0.1 ±1(1) ±1
ICC Quiescent VI = VCC or GND, IO = 0 5.5 V 4 40 40 μA
ICC Active state (per circuit) VI = VCC or GND, Rext/Cext = 0.5 VCC 3V 160 250 280 280 μA
4.5V 280 500 650 650
5.5V 360 750 975 975
Ci VI = VCC or GND 5V 1.9 10 10 pF
(1) On products compliant to MIL-PRF-38535, this parameter is not production tested at VCC = 0 V.
(2) This test is performed with the terminal in the off-state condition.