SCLS266O December   1995  – July 2024 SN54AHCT138 , SN74AHCT138

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
    7. 4.7 Operating Characteristics
    8. 4.8 Typical 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 Application Information
    2. 7.2 Power Supply Recommendations
    3. 7.3 Layout
      1. 7.3.1 Layout Guidelines
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support
      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)
  • DB|16
  • PW|16
  • NS|16
  • N|16
  • RGY|16
  • D|16
  • DGV|16
Thermal pad, mechanical data (Package|Pins)
Orderable Information

4.5 Electrical Characteristics

over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS VCC TA = 25°C SN54AHCT138 SN74AHCT138 UNIT
MIN TYP MAX MIN MAX MIN MAX
VOH IOH = −50 mA 4 5 V 4.4 4.5 4.4 4.4 V
IOH = −8 mA 3.94 3.8 3.8
VOL IOL = 50 mA 4 5 V 0.1 0.1 0.1 V
IOL = 8 mA 0.36 0.5 0.44
II VI = 5.5 V or GND 0 V to 5.5 V ±0.1 ±1(1) ±1 mA
ICC VI = VCC or GND, IO = 0 5.5 V 4 40 40 mA
ΔICC (2) One input at 3.4 V, Other inputs at VCC or GND 5.5 V 1.35 1.5 1.5 mA
Ci VI = VCC or GND 5 V 2 10 10 pF
(1) On products compliant to MIL-PRF-38535, this parameter is not production tested at VCC = 0 V.
(2) This is the increase in supply current for each input at one of the specified TTL voltage levels rather than 0 V or VCC.