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PCA9543AD

PCA9543AD

Manufacturer No:

PCA9543AD

Manufacturer:

Texas Instruments

Description:

IC INTERFACE SPECIALIZED 14SOIC

Datasheet:

Datasheet

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PCA9543AD Specifications

  • Type
    Parameter
  • Mounting Type
    Surface Mount
  • Supplier Device Package
    14-SOIC
  • Package / Case
    14-SOIC (0.154", 3.90mm Width)
  • Voltage - Supply
    2.3V ~ 5.5V
  • Interface
    I²C, SMBus
  • Applications
    2-Channel I²C Multiplexer
  • Packaging
    Tube
  • Packaging
    Bulk
  • Product Status
    Last Time Buy
  • Series
    -
The PCA9543AD is a multiplexer/demultiplexer integrated circuit chip designed by Texas Instruments. It has several advantages and application scenarios, including:1. Multiplexing Capability: The PCA9543AD allows multiple devices to share a single bus, enabling the connection of multiple I2C devices to a microcontroller or system-on-chip (SoC). It provides a simple and efficient way to expand the number of I2C devices that can be connected to a host system.2. Address Translation: The chip can translate the I2C address of each connected device, allowing multiple devices with the same address to coexist on the bus. This feature is particularly useful when integrating multiple devices from different manufacturers or when using legacy devices with conflicting addresses.3. Flexibility and Scalability: The PCA9543AD supports up to four channels, each with an independent I2C bus. This allows for flexible configuration and scalability, as different combinations of devices can be connected to each channel, and additional channels can be added as needed.4. Power Management: The chip includes power-on reset circuitry that ensures a controlled power-up sequence for the connected devices. It also provides a power-enable control for each channel, allowing selective power management of individual devices or groups of devices.5. Application Scenarios: a. System Integration: The PCA9543AD is commonly used in systems that require multiple I2C devices, such as embedded systems, industrial automation, and IoT applications. It simplifies the integration of various sensors, actuators, and other I2C-based peripherals into a single system. b. Address Conflict Resolution: When multiple devices with the same I2C address need to be connected, the PCA9543AD can be used to translate their addresses and avoid conflicts. This is particularly useful when using off-the-shelf components or when integrating devices from different vendors. c. Power Management: The chip's power-enable control allows for efficient power management of connected devices. It can be used to selectively power on/off devices based on their usage or to implement power-saving features in battery-powered systems. d. Bus Expansion: The PCA9543AD can be used to expand the number of available I2C buses in a system. By connecting multiple chips together, each with its own set of devices, a large number of I2C devices can be accommodated without overwhelming the main microcontroller or SoC.Overall, the PCA9543AD offers a versatile solution for managing multiple I2C devices in a system, providing address translation, power management, and bus expansion capabilities.
PCA9543AD Relevant information