SCPS069H
July 2001 – September 2024
PCF8574A
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Electrical Characteristics
5.6
I2C Interface Timing Requirements
5.7
Switching Characteristics
5.8
Typical Characteristics
6
Parameter Measurement Information
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.2.1
Simplified Block Diagram of Device
7.2.2
Simplified Schematic Diagram of Each P-Port Input/Output
7.3
Feature Description
7.3.1
I2C Interface
7.3.2
Interface Definition
7.3.3
Address Reference
7.4
Device Functional Modes
8
Application Information Disclaimer
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.1.1
Minimizing ICC When I/Os Control LEDs
8.2.2
Detailed Design Procedure
8.2.3
Application Curves
8.3
Power Supply Recommendations
8.3.1
Power-On Reset Requirements
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
9
Device and Documentation Support
9.1
Documentation Support
9.1.1
Glossary
9.2
Receiving Notification of Documentation Updates
9.3
Support Resources
9.4
Trademarks
9.5
Electrostatic Discharge Caution
9.6
Glossary
10
Revision History
11
Mechanical, Packaging, and Orderable Information
Data Sheet
PCF8574A Remote 8-Bit I/O Expander for I
2
C Bus