SCLS450H December   1999  – January 2025 SN74LV221A

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 = 2.5V ± 0.2V
    7. 4.7  Timing Requirements, VCC = 3.3V ± 0.3V
    8. 4.8  Timing Requirements, VCC = 5V ± 0.5V
    9. 4.9  Switching Characteristics, VCC = 2.5V ± 0.2V
    10. 4.10 Switching Characteristics, VCC = 3.3V ± 0.3V
    11. 4.11 Switching Characteristics, VCC = 5V ± 0.5V
    12. 4.12 Operating Characteristics
    13. 4.13 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 Power-down Considerations
      3. 7.1.3 Output Pulse Duration
    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

4.4 Thermal Information

THERMAL METRIC(1) SN74LV221A UNIT
D (SOIC) DB (SSOP) DGV (TVSOP) NS (SOP) PW (TSSOP)
16 PINS 16 PINS 16 PINS 16 PINS 16 PINS
RθJA Junction-to-ambient thermal resistance 73 82 120 64 108 °C/W
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953.