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TCA9534ADWR
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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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Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan TCA9534ADWR dalam solusi teknis

Sure! Here are 10 common questions and answers related to the application of TCA9534ADWR:

  1. Q: What is TCA9534ADWR? A: TCA9534ADWR is a 16-bit I/O expander with I2C interface, which allows for easy expansion of GPIO pins in various technical solutions.

  2. Q: What is the operating voltage range of TCA9534ADWR? A: The operating voltage range of TCA9534ADWR is typically between 1.65V and 5.5V.

  3. Q: How many GPIO pins can be controlled using TCA9534ADWR? A: TCA9534ADWR provides 16 GPIO pins that can be individually controlled and configured as inputs or outputs.

  4. Q: Can TCA9534ADWR handle interrupts? A: Yes, TCA9534ADWR supports interrupt functionality, allowing it to generate an interrupt signal when a pin's state changes.

  5. Q: What is the maximum sinking and sourcing current per GPIO pin? A: TCA9534ADWR can sink up to 25mA and source up to 10mA per GPIO pin.

  6. Q: Can TCA9534ADWR be cascaded with other I/O expanders? A: Yes, TCA9534ADWR can be cascaded with other I/O expanders using the I2C bus, allowing for further expansion of GPIO pins.

  7. Q: Is TCA9534ADWR compatible with 5V systems? A: Yes, TCA9534ADWR is 5V tolerant and can be used in systems operating at 5V.

  8. Q: Does TCA9534ADWR have internal pull-up resistors? A: Yes, TCA9534ADWR has programmable internal pull-up resistors that can be enabled or disabled for each GPIO pin.

  9. Q: Can TCA9534ADWR operate in a low-power mode? A: Yes, TCA9534ADWR supports a low-power mode where it consumes minimal current to conserve power.

  10. Q: What is the I2C address range of TCA9534ADWR? A: TCA9534ADWR has three hardware-selectable I2C addresses, allowing multiple devices to be used on the same bus.

Please note that these answers are general and may vary depending on the specific implementation and datasheet of TCA9534ADWR.