TCA9534ADWR

Product Overview

Category

TCA9534ADWR belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

• TCA9534ADWR is a 16-bit I/O expander with an I2C interface.
• It provides 16 general-purpose I/O pins that can be configured as inputs or outputs.
• The device operates at a voltage range of 1.65V to 5.5V, making it suitable for a wide range of applications.
• It offers high-speed I2C communication, allowing for efficient data transfer between the microcontroller and the I/O pins.

Package

TCA9534ADWR is available in a small-sized SOIC-24 package.

Essence

The essence of TCA9534ADWR lies in its ability to expand the number of I/O pins available on a microcontroller, enabling the connection of additional peripheral devices.

Packaging/Quantity

This IC is typically sold in reels containing 2500 units.

Specifications

• Supply Voltage: 1.65V to 5.5V
• Number of I/O Pins: 16
• Communication Interface: I2C
• Operating Temperature Range: -40°C to +85°C
• Package Type: SOIC-24

Detailed Pin Configuration

The pin configuration of TCA9534ADWR is as follows:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | SDA | Serial Data Input/Output | | 2 | SCL | Serial Clock Input | | 3-18 | P0-P15 | General Purpose I/O Pins | | 19 | A0 | Address Input Bit 0 | | 20 | A1 | Address Input Bit 1 | | 21 | A2 | Address Input Bit 2 | | 22 | GND | Ground | | 23 | VCC | Supply Voltage | | 24 | RESET | Reset Input |

Functional Features

• I2C interface for easy integration with microcontrollers.
• Configurable I/O pins allow for flexibility in connecting peripheral devices.
• Interrupt output pin to indicate changes in input states.
• Low standby current consumption, making it suitable for battery-powered applications.
• Internal power-on reset to ensure proper initialization.

Advantages and Disadvantages

Advantages

• Compact size and low power consumption.
• Wide operating voltage range allows compatibility with various systems.
• Simple integration with microcontrollers through the I2C interface.
• Flexible configuration of I/O pins for different application requirements.

Disadvantages

• Limited number of I/O pins (16) compared to some other ICs.
• Lack of built-in protection features for overvoltage or overcurrent conditions.

Working Principles

TCA9534ADWR operates by communicating with a microcontroller through the I2C interface. The microcontroller sends commands and data to configure the I/O pins as inputs or outputs. The device can then read or drive the corresponding signals on the pins based on the configured mode. Changes in the input states can be detected using the interrupt output pin, allowing the microcontroller to respond accordingly.

Detailed Application Field Plans

TCA9534ADWR finds applications in various fields, including but not limited to:

1. Industrial Automation: Used for controlling and monitoring multiple sensors and actuators in industrial systems.
2. Home Automation: Enables the expansion of I/O capabilities in smart home devices, such as lighting control systems and security systems.
3. Consumer Electronics: Integrated into audio/video equipment, gaming consoles, and home appliances to enhance connectivity options.
4. Automotive: Employed for I/O expansion in automotive control modules, enabling the connection of additional sensors and switches.

Detailed and Complete Alternative Models

1. MCP23017: Similar 16-bit I/O expander with I2C interface, offered by Microchip Technology.
2. PCF8574: 8-bit I/O expander with I2C interface, available from Texas Instruments.
3. MAX7313: 16-bit I/O expander with I2C/SMBus interface, manufactured by Maxim Integrated.

These alternative models provide similar functionality and can be considered as alternatives to TCA9534ADWR based on specific application requirements.

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