Table of Contents

1 Features............................................................................1

2 Applications..................................................................... 1

3 Description.......................................................................1

4 Pin Configuration and Functions...................................3

5 Specifications.................................................................. 4

5.1 Absolute Maximum Ratings........................................ 4

5.2 Recommended Operating Conditions.........................4

5.3 Thermal Information....................................................5

5.4 Electrical Characteristics.............................................5

5.5 Timing Requirements, VCC = 3.3 V ± 0.3 V.................5

5.6 Timing Requirements, VCC = 5 V ± 0.5 V....................6

5.7 Switching Characteristics, VCC = 3.3 V ± 0.3 V...........6

5.8 Switching Characteristics, VCC = 5 V ± 0.5 V..............6

5.9 Operating Characteristics........................................... 6

6 Parameter Measurement Information............................ 7

7 Detailed Description........................................................8

7.1 Overview..................................................................... 8

7.2 Functional Block Diagram........................................... 8

7.3 Feature Description.....................................................9

7.4 Device Functional Modes..........................................10

8 Application and Implementation.................................. 11

8.1 Application Information..............................................11

8.2 Typical Application.................................................... 11

8.3 Power Supply Recommendations.............................15

8.4 Layout....................................................................... 15

9 Device and Documentation Support............................17

9.1 Documentation Support............................................ 17

9.2 Receiving Notification of Documentation Updates....17

9.3 Support Resources................................................... 17

9.4 Trademarks...............................................................17

9.5 Electrostatic Discharge Caution................................17

9.6 Glossary....................................................................17

10 Revision History.......................................................... 17

11 Mechanical, Packaging, and Orderable

Information.................................................................... 18

SN54AC74, SN74AC74

SCAS521H – AUGUST 1995 – REVISED JUNE 2025

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