Manufacturer Part Number
PCA9543APW
Manufacturer
Texas Instruments
Introduction
The PCA9543APW is an I2C-compatible translating switch that allows multiple I2C devices to communicate with a single I2C bus.
Product Features and Performance
Dual bidirectional translating switch
I2C bus interface
Active-Low Interrupt Output
4-channel I2C switch with reset
3V to 5.5V Supply Voltage Range
Low stand-by current
Noise filtering on SCL/SDA Inputs
Product Advantages
Enables the connection of multiple I2C devices
Supports hot-swapping and hot-docking
Channels selected via I2C bus
Prevents SDA and SCL corruption during live board insertion and removal
Key Technical Parameters
Interface Type I2C
Voltage - Supply 2.3V ~ 5.5V
Package / Case 14-TSSOP
Mounting Type Surface Mount
Number of I2C Channels 2
Quality and Safety Features
High noise immunity
Built-in transient suppression
Compatibility
Compatible with I2C and SMBus protocols
Can interface with standard and Fast-mode I2C devices and multiple masters
Application Areas
Server motherboards
Docking stations
Telecommunications
Networking
Product Lifecycle
Obsolete (Check for replacement or updated models)
Potential limited availability or end-of-life (EOL)
Several Key Reasons to Choose This Product
Addresses I2C master and slave collision issues
Multi-voltage I/O port safe
Supports hot-swappable insertion
Facilitates design of systems requiring I2C multiplexing
Efficient power usage for battery-powered devices
PCA9543BPWFreescale / NXP Semiconductors
PCA9544LUMILEDS