TCA9535PWR

The TCA9535PWR is an I2C bus I/O port expander designed by Texas Instruments. It provides 16 additional GPIO (General-Purpose Input/Output) pins, extending the available I/O for microcontrollers and microprocessors. The device operates at a voltage range of 1.8V to 5.5V and can be interfaced with various logic levels, making it versatile for multiple applications.
Key features include:
1. I2C Interface: Communicates over the I2C bus, allowing multiple devices to connect on the same bus with unique addresses.
2. Configurable Pins: Each GPIO pin can be individually configured as an input or output.
3. Interrupts: Supports interrupt functionality for detecting changes in input states, enhancing responsiveness in applications.
4. Power Management: Low power consumption makes it suitable for battery-operated devices.
Applications include expanding the number of I/O pins in embedded systems, controlling LEDs, buttons, and sensors in consumer electronics, automotive systems, and industrial automation. The TCA9535PWR is packaged in a 28-pin TSSOP, facilitating easy integration into various designs.

The TCA9535PWR is a 16-bit I/O port expander designed for use with I2C and SMBus interfaces. Key features include:
1. 16 GPIO Pins: Configurable as input or output, allowing for flexible I/O expansion.
2. I2C Interface: Supports standard mode (up to 100 kHz) and fast mode (up to 400 kHz) for communication.
3. Multiple Device Addressing: Up to eight devices can be connected on a single I2C bus using different address settings.
4. Interrupt Handling: Integrated interrupt output for detecting changes on input pins, enabling efficient monitoring.
5. Pull-Up Resistors: Internal pull-up resistors on GPIO pins facilitate easy interface with buttons and switches.
6. Low Power Consumption: Designed for battery-operated devices with low standby current.
7. Wide Voltage Range: Operates from 1.65V to 5.5V, making it compatible with various logic levels.
8. High Noise Immunity: Features high ESD protection and robust performance in noisy environments.
These features make the TCA9535PWR suitable for a variety of applications, including microcontroller I/O expansion and interfacing with sensors.

The TCA9535PWR is packaged in a TSSOP (Thin Shrink Small Outline Package) with a 28-pin configuration.

The TCA9535PWR is a 16-pin I²C I/O port expander. Its pin count is 16. The primary function of the TCA9535 is to provide additional GPIO (General Purpose Input/Output) capabilities to microcontrollers via the I²C bus.
Key pin functions include:
- Pins 1-8: GPIO ports (P0-P7), which can be configured as inputs or outputs.
- Pin 9: VSS (ground).
- Pin 10: VDD (supply voltage, typically 1.65V to 5.5V).
- Pins 11-12: I²C bus interface (SCL for clock and SDA for data).
- Pin 13: INT (interrupt output, indicating changes in input states).
- Pins 14-16: Additional GPIO ports (P8-P10).
The device allows for remote I/O expansion, making it suitable for applications that require additional digital I/O lines.

The TCA9535PWR is manufactured by Texas Instruments (TI), a leading semiconductor company known for its innovative analog and embedded processing products. Texas Instruments designs and manufactures a wide range of electronic components and integrated circuits, catering to various sectors such as automotive, industrial, communications, and consumer electronics. The company is recognized for its commitment to quality, reliability, and sustainability in its manufacturing processes. Founded in 1930, TI has become a global leader in the semiconductor industry, providing solutions that enable advancements in technology and improve the functionality of electronic devices.

The TCA9535PWR is a GPIO expander used in various applications such as I2C bus communication for additional I/O ports, remote control systems, LED control, sensor interfacing, and expanding the number of inputs for microcontrollers. It is ideal for industrial automation, consumer electronics, embedded systems, and robotics, allowing for efficient management of multiple peripherals while minimizing GPIO pin usage on the main controller.

Equivalent products to the TCA9535PWR chip include the TCA9535APW, PCA9535, PCA9536, and MCP23017. These chips serve similar functions as I2C I/O expanders but may differ in features like the number of pins, voltage levels, or specific functionalities. Always check the datasheet for compatibility in application.