SCPS275A
July 2021 – December 2021
TCA9536
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Timing Requirements
6.7
I2C Bus Timing Requirements
6.8
Switching Characteristics
6.9
Typical Characteristics
7
Parameter Measurement Information
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
I/O Port
8.3.2
P3 or Interrupt (INT) Output
8.3.3
Pull-up Disable Functionality
8.4
Device Functional Modes
8.4.1
Power-On Reset
8.4.2
Powered-Up
8.5
Programming
8.5.1
I2C Interface
8.5.1.1
Writes
8.5.1.2
Reads
8.5.2
Software Reset Call
8.6
Register Maps
8.6.1
Device Address
8.6.2
Control Register and Command Byte
8.6.3
Register Descriptions
9
Application Information Disclaimer
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.1.1
Minimizing ICC When I/Os Control LEDs
9.2.2
Detailed Design Procedure
9.2.3
Application Curves
10
Power Supply Recommendations
10.1
Power-On Reset
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Documentation Support
12.1.1
Related Documentation
12.2
Receiving Notification of Documentation Updates
12.3
Support Resources
12.4
Trademarks
12.5
Electrostatic Discharge Caution
12.6
Glossary
13
Mechanical, Packaging, and Orderable Information
1
Features
I
2
C to GPIO expander
Operating power-supply voltage range of 1.65 V to 5.5 V
5-V Tolerant I/O ports
Software Reset via I
2
C General Call
Software-enabled integrated pull-up resistors on P ports
P3 can be repurposed as
INT
output
1-MHz Fast mode plus I
2
C bus
Input and output configuration register
Polarity inversion register
Internal power-on reset
Power-up with all channels configured as inputs
Noise filter on SCL and SDA inputs
Latched outputs with high-current drive maximum capability for directly driving LEDs
ESD protection exceeds JESD 22
2000-V Human-body model (A114-A)
1000-V Charged-device model (C101)