Manufacturer Part Number
PCA9534PW
Manufacturer
Texas Instruments
Introduction
The PCA9534PW from Texas Instruments is an 8-bit I/O expander with I2C and SMBus interface, designed to extend the number of I/Os for controlling devices through a serial bus.
Product Features and Performance
8 I/O pins that are configurable as inputs or outputs.
I2C and SMBus compatible.
Interrupt output for input change detection.
Power-on Reset (POR) feature.
Push-pull output type.
Supports clock frequency up to 400 kHz.
Product Advantages
Allows for expansion of I/Os in microcontroller projects.
Integrated interrupt functionality facilitates efficient data processing.
Compatible with a wide range of supply voltages (2.3V to 5.5V).
Key Technical Parameters
Number of I/O: 8
Interface: I2C, SMBus
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
Quality and Safety Features
Power-on Reset (POR) minimizes the possibility of erroneous outputs during power up.
Compatibility
Compatible with systems requiring additional I/O ports through I2C or SMBus.
Surface Mount mounting type enables integration in a wide variety of PCB designs.
Application Areas
Microcontroller-based systems
Industrial Controls
Mobile Devices
Consumer Electronics
Product Lifecycle
Status: Obsolete.
Replacement or upgrade models may be available through Texas Instruments.
Several Key Reasons to Choose This Product
Provides significant I/O expansion in compact 16-TSSOP packaging.
Flexible voltage and clock frequency support to suit various application needs.
Integrated safety features such as Power-on Reset enhance system reliability.
Supports low power consumption and broad operating temperature range.
Direct interrupt capabilities allow for real-time system response improvements.