The TCA9534PWR is a sophisticated Remote 8-Bit I/O Expander for I²C Bus designed by Texas Instruments, one of the leading manufacturers in the semiconductor industry. This integrated circuit is engineered to provide general-purpose remote I/O expansion for most microcontroller families via the two-wire bidirectional I²C bus (serial clock (SCL), serial data (SDA)).

Key Features

• Low Standby Current: The device features a low standby current, which makes it suitable for power-sensitive applications.
• Versatile Voltage Operation: It operates across a wide voltage range of 1.65 to 5.5 V, making it adaptable to various logic levels and supply voltages.
• Enhanced Interface: The TCA9534PWR offers an interrupt output that can be connected to the interrupt logic of the microcontroller, thereby providing an efficient method of monitoring the input pins for changes without the need for constant polling.
• Configurable Polarity: Input and output configuration settings are programmable, and the polarity of the I/O expander is also configurable, giving designers flexibility in hardware layout.

Applications

The versatility of the TCA9534PWR makes it an excellent choice for a broad range of applications, including:

• Server Infrastructure
• Factory Automation and Control
• Electronics Signage
• Industrial PCs

Package and Quality

The TCA9534PWR is offered in a TSSOP (Thin Shrink Small Outline Package) with 24 pins, which provides a compact footprint while allowing for adequate thermal performance. Texas Instruments is known for its commitment to quality, and this product is no exception. It is designed and manufactured to meet high standards, ensuring reliability and performance for critical applications.

Support and Resources

Designers can access comprehensive technical resources, including datasheets, application notes, and design tools, to facilitate the integration of the TCA9534PWR into their projects. Texas Instruments also provides customer support and an active community forum to assist with any design challenges.