SCHS186F September   1997  – March 2022 CD54HC393 , CD54HCT393 , CD74HC393 , CD74HCT393

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 (1)
    2. 5.2 Recommended 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)
  • D|14
  • N|14
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.3 Device Functional Modes

Table 7-1 Truth Table(1)
CP COUNT OUTPUTS
Q0 Q1 Q2 Q3
0 L L L L
1 H L L L
2 L H L L
3 H H L L
4 L L H L
5 H L H L
6 L H H L
7 H H H L
8 L L L H
9 H L L H
10 L H L H
11 H H L H
12 L L H H
13 H L H H
14 L H H H
15 H H H H
(1) H = high voltage level, L = low voltage level, X = don’t care, ­↑ = transition from low to high level, ↓ = transition from high to low.
Table 7-2 Truth Table(1)
CP COUNT MR OUTPUT
­↑ L No change
↓ L Count
X H L L L L
(1) H = high voltage level, L = low voltage level, X = don’t care, ­↑ = transition from low to high level, ↓ = transition from high to low.