Manufacturer Part Number
PCA9539PWR
Manufacturer
Texas Instruments
Introduction
The PCA9539PWR is an I/O expander from Texas Instruments, designed to provide additional input/output possibilities to microcontrollers via an I2C or SMBus interface.
Product Features and Performance
16-bit I/O expander
I2C and SMBus compatible interface
Interrupt output feature for enhanced control
Power-On Reset (POR) functionality
Push-pull output type
Source or sink current: 10mA and 25mA
Supports clock frequency up to 400 kHz
Operating voltage range from 2.3V to 5.5V
Suitable for operation in temperatures ranging from -40°C to 85°C
Surface-mount technology with 24-TSSOP package
Product Advantages
Expands I/O capabilities significantly for microcontrollers
Flexible interface compatibility allows for use with various microcontrollers
Low voltage operation suitable for battery-operated applications
High-temperature operational range ensures reliability in varying environments
Simplified system design and minimized need for hardware changes
Key Technical Parameters
Number of I/O: 16
Interface: I2C, SMBus
Interrupt Output: Yes
Output Type: Push-Pull
Current Output Source/Sink: 10mA, 25mA
Clock Frequency: 400 kHz
Voltage Supply: 2.3V ~ 5.5V
Operating Temperature: -40°C ~ 85°C
Package: 24-TSSOP
Quality and Safety Features
Power-On Reset (POR) ensures reliable operation after power cycles
Robust operating temperature range for enhanced performance stability
Compatibility
Designed to be compatible with microcontrollers supporting I2C or SMBus interfaces
Can be used in conjunction with other Texas Instruments solutions for comprehensive system design
Application Areas
Industrial controls
Consumer electronics
Automotive systems
Home automation
Communication systems
Product Lifecycle
Tagged as Not For New Designs indicating it may be nearing discontinuation
Potential customers should consider future availability or seek replacements or upgrades
Several Key Reasons to Choose This Product
Extends I/O capabilities with 16 additional inputs/outputs, offering flexibility in design
Supports common communication interfaces (I2C, SMBus) for straightforward integration
Wide operating voltage and temperature range cater to a variety of applications and environments
Provides precise control and monitoring capabilities with interrupt output feature
Texas Instruments' reliability and support for ease of integration and maintenance
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