Texas Instruments

TCA9543APWR

The TCA9543APWR is a low-cost, multi-master I2C bus switch from Texas Instruments. It is designed to enable communication between multiple I2C masters and multiple I2C slaves, allowing for efficient and flexible I2C bus management in complex systems.

Description:

The TCA9543APWR is a 4-port I2C bus switch that provides a simple and efficient way to expand the number of available I2C devices in a system. It features a compact 16-pin TSSOP package and operates with a wide supply voltage range of 2.3V to 5.5V.

Features:

1. 4 I2C master ports and 4 I2C slave ports
2. Supports standard (100 kbps) and fast (400 kbps) I2C modes
3. Supports multi-master environments with arbitration
4. Configurable address mapping for easy integration
5. Wake-up functionality from low-power modes
6. Small 16-pin TSSOP package
7. Wide supply voltage range (2.3V to 5.5V)
8. Low power consumption (150 µA in standard mode and 90 µA in fast mode)

Applications:

1. Industrial control systems
2. Home automation and smart home devices
3. Automotive infotainment systems
4. Consumer electronics with multiple I2C devices
5. IoT devices with multiple I2C sensors or actuators
6. Embedded systems with limited I2C bus capacity

The TCA9543APWR is an ideal solution for systems that require efficient I2C bus management and the ability to connect multiple I2C masters and slaves. Its low cost, small form factor, and support for both standard and fast I2C modes make it a versatile choice for a wide range of applications.