SCLS109H April   2004  – March 2022 SN54HC148 , SN74HC148

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 Recommended Operating Conditions (1)
    3. 6.3 Thermal Information
    4. 6.4 Electrical Characteristics
    5. 6.5 Switching Characteristics
    6. 6.6 Operating Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Device Functional Modes
  9. 9 Application Information
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Support Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • NS|16
  • N|16
  • D|16
Thermal pad, mechanical data (Package|Pins)
Orderable Information

3 Description

The SNx4HC148 is an 8-input priority encoder. Added input enable (EI) and output enable (EO) signals allow for cascading multiple stages without added external circuitry.

Device Information(1)
PART NUMBER PACKAGE BODY SIZE (NOM)
SN74HC148D SOIC (16) 9.90 mm × 3.90 mm
SN74HC148N PDIP (16) 19.31 mm × 6.35 mm
SN74HC148NS SO (16) 10.20 mm × 5.30 mm
SN54HC148J CDIP (16) 21.34 mm × 6.92 mm
SNJ54HC148FK LCCC (20) 8.89 mm × 8.45 mm
(1) For all available packages, see the orderable addendum at the end of the data sheet.
GUID-7A72F945-C475-41BA-B317-F7F19502DEF0-low.gif Functional Block Diagram