PCF8574 datasheet(2/42 Pages) TI2

2 / 42 page

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 ESD Ratings............................................................... 4

5.3 Recommended Operating Conditions.........................4

5.4 Thermal Information....................................................4

5.5 Electrical Characteristics.............................................5

5.6 I2C Interface Timing Requirements.............................5

5.7 Switching Characteristics............................................6

5.8 Typical Characteristics................................................ 7

6 Parameter Measurement Information............................ 9

7 Detailed Description......................................................12

7.1 Overview................................................................... 12

7.2 Functional Block Diagram......................................... 12

7.3 Feature Description...................................................13

7.4 Device Functional Modes..........................................14

8 Application and Implementation.................................. 16

8.1 Application Information............................................. 16

8.2 Typical Application.................................................... 16

8.3 Power Supply Recommendations.............................18

8.4 Layout....................................................................... 20

9 Device and Documentation Support............................22

9.1 Documentation Support............................................ 22

9.2 Receiving Notification of Documentation Updates....22

9.3 Support Resources................................................... 22

9.4 Trademarks...............................................................22

9.5 Electrostatic Discharge Caution................................22

9.6 Glossary....................................................................22

10 Revision History.......................................................... 22

11 Mechanical, Packaging, and Orderable

Information.................................................................... 23

PCF8574

SCPS068K – JULY 2001 – REVISED SEPTEMBER 2024

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PCF8574 Datasheet(PDF) 2 Page - Texas Instruments