TCA6408PWRG4

Product Overview

Category

TCA6408PWRG4 belongs to the category of integrated circuits (ICs).

Use

This product is commonly used for input/output (I/O) expansion in various electronic devices.

Characteristics

• TCA6408PWRG4 is a 8-bit I/O expander with I2C interface.
• It operates at a voltage range of 1.65V to 5.5V, making it suitable for a wide range of applications.
• The device has 8 I/O pins that can be configured as inputs or outputs.
• It offers programmable interrupt output capability.
• TCA6408PWRG4 has low standby current consumption, making it energy-efficient.

Package and Quantity

The TCA6408PWRG4 is available in a small-sized TSSOP-16 package. It is typically sold in reels of 2500 units.

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Number of I/O Pins: 8
• Interface: I2C
• Operating Temperature Range: -40°C to +85°C
• Standby Current: 1 µA (typical)

Detailed Pin Configuration

The TCA6408PWRG4 has a total of 16 pins arranged in a TSSOP-16 package. The pin configuration is as follows:

Pin 1: SDA (Serial Data) Pin 2: SCL (Serial Clock) Pin 3: INT (Interrupt Output) Pin 4: GND (Ground) Pin 5: P7 (I/O Pin 7) Pin 6: P6 (I/O Pin 6) Pin 7: P5 (I/O Pin 5) Pin 8: P4 (I/O Pin 4) Pin 9: VCC (Supply Voltage) Pin 10: P3 (I/O Pin 3) Pin 11: P2 (I/O Pin 2) Pin 12: P1 (I/O Pin 1) Pin 13: P0 (I/O Pin 0) Pin 14: A1 (Address Bit 1) Pin 15: A0 (Address Bit 0) Pin 16: NC (No Connection)

Functional Features

• The TCA6408PWRG4 provides a simple and efficient way to expand the number of I/O pins in a system.
• It supports bidirectional communication through the I2C interface, allowing easy integration with microcontrollers and other devices.
• The device offers programmable interrupt output, enabling efficient event-driven systems.
• TCA6408PWRG4 has low power consumption, making it suitable for battery-powered applications.
• It features internal pull-up resistors that can be enabled or disabled as per the application requirements.

Advantages and Disadvantages

Advantages

• Compact size and small footprint.
• Wide operating voltage range allows compatibility with various systems.
• Low standby current consumption helps conserve energy.
• Programmable interrupt output enhances system efficiency.
• Internal pull-up resistors simplify circuit design.

Disadvantages

• Limited number of I/O pins (8) may not be sufficient for complex applications requiring extensive I/O expansion.
• Lack of built-in protection features against overvoltage or ESD events.

Working Principles

The TCA6408PWRG4 operates by receiving commands and data through the I2C interface. It can function as an input or output expander depending on the configuration set by the user. The device communicates with the master device (e.g., microcontroller) using the I2C protocol, allowing bidirectional data transfer.

Detailed Application Field Plans

The TCA6408PWRG4 finds applications in various fields, including but not limited to:

1. Home automation systems: It can be used to expand the number of I/O pins in smart home devices, enabling control and monitoring of multiple sensors, actuators, and switches.

2. Industrial automation: The device can be employed in industrial control systems to increase the number of I/O channels, facilitating efficient communication with sensors, relays, and other peripherals.

3. Automotive electronics: TCA6408PWRG4 can be utilized in automotive applications for I/O expansion, enabling connectivity with various components such as lights, buttons, and sensors.

4. Consumer electronics: It can be integrated into consumer electronic devices like gaming consoles, remote controls, and audio systems to enhance their functionality by providing additional I/O capabilities.

Detailed and Complete Alternative Models

1. MCP23008: This 8-bit I/O expander from Microchip offers similar features and is compatible with the I2C interface.

2. PCF8574: Another 8-bit I/O expander