TCA6408ARGTR

The TCA6408ARGTR is an 8-bit I2C and SMBus I/O expander with interrupt output. It provides 8 general-purpose I/O pins (GPIO) for various input and output applications, controlled via the I2C bus interface. This IC is designed to expand the I/O capabilities of microcontrollers and other digital devices.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

• GND: Ground connection
• VCC: Positive power supply
• SCL: I2C clock input
• SDA: I2C data input/output
• INT: Interrupt output
• RESET: Reset input
• P[0:7]: General-purpose I/O pins

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the TCA6408ARGTR IC for a visual representation.

Key Features

• 8-Bit I/O Expander: Provides 8 general-purpose I/O pins for flexible input/output configurations.
• I2C Interface: Controlled via the I2C bus, allowing for easy integration with microcontrollers and other I2C-compatible devices.
• Interrupt Output: Features an interrupt output pin for efficient event notification to the host controller.
• Low Standby Current: Offers low standby current consumption, suitable for power-sensitive applications.
• Hardware Reset: Includes a hardware reset input for resetting the device to its default state.

Note: For detailed technical specifications, please refer to the TCA6408ARGTR datasheet.

Application

• Embedded Systems: Ideal for expanding the I/O capabilities of embedded systems, such as microcontroller-based projects and IoT devices.
• User Interface: Can be used to interface with various input/output devices, such as buttons, LEDs, and sensors.
• System Monitoring: Suitable for monitoring and controlling peripheral devices in industrial automation and control systems.

Functionality

The TCA6408ARGTR serves as an 8-bit I/O expander, allowing microcontrollers to control additional I/O pins via the I2C bus. It provides flexibility and scalability for various digital applications.

Usage Guide

• Power Supply: Connect VCC (Pin 2) to the positive power supply and GND (Pin 1) to ground.
• I2C Communication: Connect the SCL (Pin 3) and SDA (Pin 4) pins to the respective I2C clock and data lines of the microcontroller.
• Interrupt Handling: Monitor the INT (Pin 5) pin for interrupt events, providing efficient event notification to the host controller.

Frequently Asked Questions

Q: How many general-purpose I/O pins does the TCA6408ARGTR provide?
A: The TCA6408ARGTR provides 8 general-purpose I/O pins for flexible input/output configurations.

Q: What is the standby current consumption of the TCA6408ARGTR?
A: The TCA6408ARGTR offers low standby current consumption, making it suitable for power-sensitive applications.