SCES221T April   1999  – August 2026 SN74LVC1G80

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  ESD Ratings
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Thermal Information
    5. 5.5  Electrical Characteristics
    6. 5.6  Timing Requirements: TA = –40°C to +85°C
    7. 5.7  Timing Requirements: TA = –40°C to +125°C
    8. 5.8  Switching Characteristics: TA = –40°C to +85°C, CL = 15pF
    9. 5.9  Switching Characteristics: TA = –40°C to +85°C, CL = 30pF or 50pF
    10. 5.10 Switching Characteristics: TA = –40°C to +125°C, CL = 30pF or 50pF
    11. 5.11 Operating Characteristics
    12. 5.12 Typical 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 Balanced High-Drive CMOS Push-Pull Outputs
      2. 7.3.2 Standard CMOS Inputs
      3. 7.3.3 Clamp Diodes
      4. 7.3.4 Partial Power Down (Ioff)
      5. 7.3.5 Over-Voltage Tolerant 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
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curve
    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 Community Resources
    4. 9.4 Trademarks
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

8.2.1 Design Requirements

For this application, a resistor needs to be placed on the feedback line for the initialization voltage from the microcontroller to overpower the signal coming from the output ( Q). Without it the state at the input will be challenged by the GPIO from the microcontroller and from the output of the SN74LVC1G80.

The SN74LVC1G80 device uses CMOS technology and has balanced output drive. Take care to avoid bus contention because it can drive currents that exceed maximum limits.