Manufacturer Part Number
PCA9535RGER
Manufacturer
Texas Instruments
Introduction
PCA9535RGER, an interface I/O expander from Texas Instruments, provides additional I/O ports for a microcontroller via I2C/SMBus interface.
Product Features and Performance
16 additional I/O ports
Interface compatible with I2C and SMBus protocols
Interrupt output feature for enhanced communication
Power-On Reset (POR) function for reliable operation
Push-pull output type for driving loads directly
Frequency support up to 400 kHz for fast communication
Product Advantages
Expand I/O capability without changing the microcontroller
Low standby current suitable for power-sensitive applications
Consistent performance across 2.3V to 5.5V supply range
Robust operation in extended temperature range from -40°C to 85°C
Key Technical Parameters
Number of I/O: 16
Clock Frequency: 400 kHz
Voltage - Supply: 2.3V ~ 5.5V
Operating Temperature: -40°C ~ 85°C
Current - Output Source/Sink: 10mA, 25mA
Interrupt Output: Yes
Quality and Safety Features
Built-in Power-On Reset (POR) ensures reliable start-up
Compliance with industry-standard I2C/SMBus protocols for compatibility
Operating temperature range suitable for industrial-grade applications
Compatibility
Compatible with various microcontrollers supporting I2C/SMBus
Surface Mount Package enhances PCB compatibility
Application Areas
Industrial controls
Server management
Robotics
Home automation systems
Automotive electronics
Product Lifecycle
Active status indicates the product is in full production and not nearing discontinuation
Availability of ongoing manufacturer support and potential future upgrades
Several Key Reasons to Choose This Product
Provides significant expansion of I/O ports, reducing the need for larger microcontrollers
Supports power-saving modes ideal for battery-operated devices
Flexible supply voltage range ensures compatibility with various logic levels
Easy-to-use surface mount package fits compact PCB layouts
Robust operating temperature range suits a wide range of environments
High interrupt output functionality for real-time system response