The PCA9535PWR is a specific variant of the PCA9535 series of 16-bit I/O expanders manufactured by Texas Instruments. It is a versatile device that provides additional input/output (I/O) pins for microcontrollers or other digital systems. Here is some information about the PCA9535PWR:
1. I/O Expander: The PCA9535PWR expands the number of I/O pins available to a microcontroller by providing 16 additional I/O pins. These pins can be used as inputs or outputs, depending on the application requirements.
2. Flexible Configuration: The device offers individual programmable I/O pins, allowing each pin to be configured as an input or output independently. This flexibility provides customization options based on specific application needs.
3. I2C Interface: The PCA9535PWR communicates with the microcontroller or host system using the I2C (Inter-Integrated Circuit) serial interface. This allows for simple and efficient data transfer between the microcontroller and the I/O expander.
4. Interrupt Functionality: The device supports interrupt functionality, which enables the microcontroller to be notified when there are changes in the state of the I/O pins. This feature can be useful for applications that require real-time monitoring or event-driven responses.
5. Low Power Consumption: The PCA9535PWR is designed with low power consumption, making it suitable for battery-powered or energy-efficient applications.
6. Package Type: The PCA9535PWR is available in a small 20-pin TSSOP (Thin Shrink Small Outline Package), which offers a compact size and ease of integration into circuit boards.
The PCA9535PWR is commonly used in various applications that require additional I/O expansion, such as LED control, keypad scanning, GPIO (General-Purpose Input/Output) expansion, and interface multiplexing.
