Texas Instruments

TCA9539QPWRQ1  

I/O Expanders

The TCA9539QPWRQ1 is a high-performance I2C multiplexer (also known as a switch or mux) manufactured by Texas Instruments. It is designed to enable communication between a single I2C master device and multiple I2C slave devices, allowing for efficient use of the I2C bus and reducing the number of required pins on the master device.

Description:

The TCA9539QPWRQ1 is a 2-to-9 I2C multiplexer, which means it can connect one master device to any one of nine slave devices. It features a compact 16-pin QFN package, making it suitable for space-constrained applications.

Features:

1. I2C-compatible interface: The TCA9539QPWRQ1 is designed to work seamlessly with I2C communication protocols, allowing for easy integration with existing I2C systems.
2. 2-to-9 multiplexing: The device can connect one I2C master to any one of nine I2C slave devices, allowing for efficient use of the I2C bus.
3. Independent channel control: Each channel (slave device) can be independently enabled or disabled, providing flexibility in system design.
4. Address configuration: The device can be configured with a unique I2C address, allowing multiple TCA9539QPWRQ1 devices to be connected to the same I2C bus.
5. Low power consumption: The TCA9539QPWRQ1 is designed for low power operation, making it suitable for battery-powered or energy-sensitive applications.
6. Wide operating voltage range: The device operates over a wide voltage range of 2.3V to 5.5V, making it compatible with various power supply options.

Applications:

The TCA9539QPWRQ1 is suitable for a wide range of applications where multiple I2C slave devices need to be connected to a single I2C master. Some common applications include:

1. Industrial automation and control systems: The TCA9539QPWRQ1 can be used to connect multiple sensors or actuators to a central control unit, simplifying the overall system design.
2. Home automation and IoT devices: In smart home applications, the I2C multiplexer can help connect various sensors, controllers, and other devices to a central hub or gateway.
3. Automotive systems: The TCA9539QPWRQ1 can be used in automotive applications to connect multiple electronic control units (ECUs) to a single I2C bus, reducing wiring complexity and improving system reliability.
4. Consumer electronics: In portable devices like smartphones, tablets, and wearables, the I2C multiplexer can help manage the connection between the main processor and various peripheral devices, saving space and reducing power consumption.
5. Data acquisition systems: The TCA9539QPWRQ1 can be used in data acquisition systems to connect multiple analog-to-digital converters (ADCs) or digital-to-analog converters (DACs) to a single microcontroller, streamlining the system architecture.

TCA9539QPWRQ1 Documents

Download datasheets and manufacturer documentation for TCA9539QPWRQ1

Datasheets :

TCA9539-Q1 Datasheet      

HTML Datasheet :

TCA9539-Q1 Datasheet      

PCN Design/Specification :

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