SCPS068K
July 2001 – September 2024
PCF8574
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
7.3
Feature Description
7.3.1
I2C Interface
7.3.2
Interface Definition
7.3.3
Address Reference
7.4
Device Functional Modes
8
Application and Implementation
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
Package Options
Mechanical Data (Package|Pins)
PW|20
MPDS362A
N|16
MPDI002C
RGY|20
MPQF116H
DW|16
MSOI003I
DGV|20
MPDS006C
RGT|16
MPQF119H
Thermal pad, mechanical data (Package|Pins)
RGY|20
QFND041R
DW|16
QFND313D
RGT|16
QFND097Q
Orderable Information
scps068k_oa
6
Parameter Measurement Information
Figure 6-1
I
2
C Interface Load Circuit and Voltage Waveforms
Figure 6-2
Interrupt Voltage Waveforms
Figure 6-3
I
2
C Write Voltage Waveforms
Figure 6-4
Load Circuits