Manufacturer Part Number
PCA9535EMTTXG
Manufacturer
onsemi
Introduction
The PCA9535EMTTXG is a 16-bit I/O expander with an I2C interface.
Product Features and Performance
16-bit I/O ports for extended I/O capability
I2C and SMBus compatible interface
Interrupt output functionality for alerting system changes
Power-on reset (POR) feature to ensure a stable start-up
Push-pull output type for direct drive capability
Supports hot insertion
Product Advantages
Allows expansion of I/Os for microcontrollers with limited pins
Reduces complexity and cost in multi-button or indicator applications
High-speed I2C interface enhances communication with host controller
Compatibility with a wide range of supply voltage (1.65V to 5.5V) supports various logic levels
Handles 10mA source, 25mA sink current suitable for driving LEDs
Key Technical Parameters
Number of I/O: 16
Interface: I2C, SMBus
Interrupt Output: Yes
Current - Output Source/Sink: 10mA, 25mA
Clock Frequency: 100 kHz
Voltage - Supply: 1.65V ~ 5.5V
Operating Temperature: -55°C ~ 125°C
Quality and Safety Features
Extended operating temperature range ensures performance in extreme conditions
Built-in power-on reset minimizes system errors upon power-up
Compatibility
Compatible with I2C and SMBus host controllers
Surface mount package suitable for high-density PCBs
Application Areas
General-purpose I/O expansion for microcontrollers
Industrial control systems
Servers
Embedded systems
Automotive applications
Consumer electronics
Product Lifecycle
Product Status: Obsolete
Replacement options might be available, consult manufacturer for upgrade paths
Several Key Reasons to Choose This Product
Allows for easy and flexible I/O expansion to overcome microcontroller limitations
Support for hot insertion improves serviceability and maintenance
Low standby current is ideal for battery-powered applications
Onsemi's quality and reliability assure a good investment
Wide operating voltage range and high clock frequency are compatible with various systems and speeds
Support for a wide temperature range makes it suitable for harsh environments