SCHS240D November   1998  – October 2024 CD54AC164 , CD54ACT164 , CD74AC164 , CD74ACT164

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 DC Electrical Specifications
    6. 4.6 Prerequisite for Switching Function
    7. 4.7 Switching Specifications
  6. 5 Parameter Measurement Information
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Standard CMOS Inputs
      2. 6.3.2 TTL-Compatible CMOS Inputs
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
        1. 7.2.1.1 Power Considerations
        2. 7.2.1.2 Input Considerations
        3. 7.2.1.3 Output Considerations
        4. 7.2.1.4 Application Curve
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 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 Device and Documentation Support
    1. 9.1 Documentation Support (Analog)
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • D|14
  • PW|14
  • BQA|14
  • N|14
Thermal pad, mechanical data (Package|Pins)

6.4 Device Functional Modes

Table 6-1 lists the functional modes of the CDx4AC(T)164.

Table 6-1 Function Table
INPUTS(1) FUNCTION
A B CLR CLK
X X L X Shift register is cleared.
L X H ↑ First stage of the shift register goes low.
Other stages store the data of previous stage, respectively.
X L H ↑ First stage of the shift register goes low.
Other stages store the data of previous stage, respectively.
H H H ↑ First stage of the shift register goes high.
Other stages store the data of previous stage, respectively.
(1) H = High Voltage Level, L = Low Voltage Level, X = Do Not Care