SCPS201F
August 2009 – September 2026
TCA9535
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
Parameter Measurement Information
6
Detailed Description
6.1
Overview
6.2
Functional Block Diagram
6.3
Feature Description
6.3.1
5V Tolerant I/O Ports
6.3.2
Hardware Address Pins
6.3.3
Interrupt ( INT) Output
6.4
Device Functional Modes
6.4.1
Power-On Reset (POR)
6.4.2
Powered-Up
6.5
Programming
6.5.1
I2C Interface
6.5.1.1
Bus Transactions
6.5.1.1.1
Writes
6.5.1.1.2
Reads
6.5.2
Device Address
6.5.3
Control Register and Command Byte
6.6
Register Maps
6.6.1
Register Descriptions
7
Application and Implementation
7.1
Application Information
7.2
Typical Application
7.2.1
Design Requirements
7.2.1.1
Calculating Junction Temperature and Power Dissipation
7.2.1.2
Minimizing ICC When I/O is Used to Control LED
7.2.2
Detailed Design Procedure
7.2.3
Application Curves
7.3
Power Supply Recommendations
7.4
Layout
7.4.1
Layout Guidelines
7.4.2
Layout Example
8
Device and Documentation Support
8.1
Documentation Support
8.1.1
Related Documentation
8.2
Receiving Notification of Documentation Updates
8.3
Support Resources
8.4
Trademarks
8.5
Electrostatic Discharge Caution
8.6
Glossary
9
Revision History
10
Mechanical, Packaging, and Orderable Information
Data Sheet
TCA9535 Low-Voltage 16-Bit I
2
C and SMBus Low-Power I/O Expander
with Interrupt Output and Configuration Registers