Texas Instruments

PCA9538PW  

I/O Expanders

The Texas Instruments PCA9538PW is a high-performance I2C switch that enables the connection of multiple I2C devices to a single I2C bus. It is designed to provide a flexible and efficient solution for managing multiple I2C devices in a system.

Description:

The PCA9538PW is a 2-port I2C switch that allows two I2C devices to share a single I2C bus. It is a small, low-power device that can operate at a wide range of voltages, making it suitable for a variety of applications.

Features:

1. 2-port I2C switch
2. Supports standard-mode I2C operation up to 100kHz
3. Supports ultra-fast-mode I2C operation up to 400kHz
4. Supports high-speed-mode I2C operation up to 3.4MHz
5. Supports SMBus timeout specification
6. Supports bus arbitration to prevent bus contention
7. Supports bus monitoring and bus release
8. Small package size (WSON-8)
9. Low power consumption

Applications:

The PCA9538PW is suitable for a wide range of applications where multiple I2C devices need to share a single I2C bus. Some potential applications include:

1. Consumer electronics: In devices such as smartphones, tablets, and laptops, multiple sensors and other components may need to share a single I2C bus.
2. Industrial automation: In industrial control systems, multiple sensors and actuators may need to share a single I2C bus.
3. Automotive: In automotive systems, multiple sensors and control modules may need to share a single I2C bus.
4. IoT devices: In Internet of Things (IoT) devices, multiple sensors and other components may need to share a single I2C bus.

Overall, the PCA9538PW is a versatile and efficient I2C switch that can help simplify the design of systems with multiple I2C devices. Its small size, low power consumption, and support for a range of I2C speeds make it a popular choice for a variety of applications.

PCA9538PW Documents

Download datasheets and manufacturer documentation for PCA9538PW

Datasheets :

PCA9538      

Scheme-It :

PCA9538PW Scheme-It®      

HTML Datasheet :

PCA9538      

PCN Design/Specification :

Design 22/Feb/2022       Datasheet Update 25/Jun/2014