"TI-TCA9534.pdf: I/O扩展器及控制输入/输出功能概述"

The TI-TCA9534.pdf document provides detailed information about the TCA9534 I/O expander, a peripheral device designed for use with I2C or SMBus master devices such as processors. The TCA9534 features eight I/O pins (P0-P7) which can be used as either input or output, and is powered by VCC and ground (VCCA1 and GND). The device also includes an enable pin and control inputs, as well as status outputs and LEDs for visual indication of the device's status. Additionally, the TCA9534 includes a reset pin and an interrupt pin (INT). The document is copyrighted by Texas Instruments Incorporated and includes information about how to order the product, as well as technical documents and tools for working with the TCA9534. Overall, the document serves as a comprehensive guide for understanding and implementing the TCA9534 I/O expander in various electronic systems.