SCHS156D February   1998  – November 2021 CD54HC165 , CD54HCT165 , CD74HC165 , CD74HCT165

PRODUCTION DATA  

  1. 1 Features
  2. 2 Description
  3. 3 Revision History
  4. 4 Pin Configuration and Functions
  5. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 Reccomended Operating Conditions
    3. 5.3 Thermal Information
    4. 5.4 Electrical Characteristics
    5. 5.5 Prerequisite for Switching Characteristics
    6. 5.6 Switching Characteristics
  6. 6 Parameter Measurement Information
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Device Functional Modes
  8. 8 Power Supply Recommendations
  9. 9 Layout
    1. 9.1 Layout Guidelines
  10. 10Device and Documentation Support
    1. 10.1 Receiving Notification of Documentation Updates
    2. 10.2 Support Resources
    3. 10.3 Trademarks
    4. 10.4 Electrostatic Discharge Caution
    5. 10.5 Glossary
  11. 11Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

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

2 Description

The ’HC165 and ’HCT165 are 8-bit parallel or serial-in shift registers with complementary serial outputs (QH and QH) available from the last stage. When the parallel load (SH/LD) input is LOW, parallel data from the A to H inputs are loaded into the register asynchronously. When the SH/LD is HIGH, data enters the register serially at the SER input and shifts one place to the right (A→B→C, etc.) with each positive-going clock transition. This feature allows parallel-to-serial converter expansion by connecting the QH output to the SER input of the succeeding device.

Device Information
PART NUMBER PACKAGE(1) BODY SIZE (NOM)
CD54HC165F3A CDIP (16) 24.38 mm × 6.92 mm
CD74HC165M SOIC (16) 9.90 mm × 3.90 mm
CD74HC165E PDIP (16) 19.31 mm × 6.35 mm
CD54HCT165F3A CDIP (16) 24.38 mm × 6.92 mm
CD74HCT165M SOIC (16) 9.90 mm × 3.90 mm
CD74HCT165E PDIP (16) 19.31 mm × 6.35 mm
(1) For all available packages, see the orderable addendum at the end of the data sheet.
GUID-20210218-CA0I-X1MX-NFLV-2M5MCVCRVZZD-low.gif Functional Diagram