Manufacturer Part Number
PCA9544AZQNR
Manufacturer
Texas Instruments
Introduction
The PCA9544AZQNR is a specialized interface device that enables multiple I2C/SMBus devices to communicate with a single host controller. It provides a unique solution for translating and switching between different I2C/SMBus devices, allowing seamless integration and data exchange in complex systems.
Product Features and Performance
Supports I2C and SMBus protocols
Operates on a wide supply voltage range of 2.3V to 5.5V
Configurable as a 4-channel I2C-bus switch or a 4-channel I2C-bus translator
Integrated logic-level translation function
Fast-mode Plus (Fm+) I2C-bus compatible up to 1 MHz
Supports hot-swap capability
Available in a compact 20-pin VFBGA package
Product Advantages
Enables scalable and flexible I2C/SMBus device connectivity
Simplifies system design by handling voltage-level translation
Reduces the need for additional level-shifting components
Improves overall system reliability and signal integrity
Key Reasons to Choose This Product
Versatile interface solution for complex, multi-device I2C/SMBus systems
Seamless integration and data exchange between diverse components
Robust performance with support for high-speed data transfers
Space-efficient package option for compact design considerations
Texas Instruments' reputation for quality and reliability
Quality and Safety Features
Certified for industrial and automotive applications
Designed to meet rigorous quality and safety standards
Extensive product testing and validation processes
Compatibility
The PCA9544AZQNR is compatible with I2C and SMBus protocols, enabling seamless integration with a wide range of I2C/SMBus-based devices and systems.
Application Areas
Industrial automation and control systems
Automotive electronics
Embedded systems
Telecommunications equipment
Medical and healthcare devices
Product Lifecycle
The PCA9544AZQNR is an obsolete product, meaning it is no longer in active production. However, there may be equivalent or alternative models available from Texas Instruments. Customers are advised to contact our website's sales team for the latest information on product availability and potential replacement options.

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