NXP USA Inc.
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PCA9543BPW,118
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PCA9543BPW,118

Product Overview

Category

The PCA9543BPW,118 belongs to the category of I2C bus switches and multiplexers.

Use

It is used for enabling a system to connect and communicate with multiple I2C devices through a single I2C bus.

Characteristics

  • Allows multiple I2C devices to be connected to a single I2C bus
  • Low Rds(on) switches for minimal signal distortion
  • Compatible with 1.8V, 2.5V, 3.3V, and 5V logic
  • Available in TSSOP16 package

Package

The PCA9543BPW,118 comes in a TSSOP16 package.

Essence

The essence of the PCA9543BPW,118 lies in its ability to simplify the design and implementation of systems with multiple I2C devices.

Packaging/Quantity

The PCA9543BPW,118 is typically available in reels with a quantity of 2500 units per reel.

Specifications

  • Operating Voltage: 2.3V to 5.5V
  • Number of Channels: 2
  • I2C Address Selection Inputs: 3
  • On-resistance: 7Ω (max)
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The PCA9543BPW,118 features a TSSOP16 pin configuration with the following key pins: 1. SCL: Serial Clock Input 2. SDA: Serial Data I/O 3. EN: Enable Input 4. A0, A1, A2: I2C Address Selection Inputs 5. Channel 0 and Channel 1: I2C Bus Outputs

Functional Features

  • Enables communication with multiple I2C devices using a single I2C bus
  • Allows individual selection of I2C channels
  • Low Rds(on) switches minimize signal distortion
  • Supports hot insertion

Advantages and Disadvantages

Advantages

  • Simplifies I2C bus management in complex systems
  • Low on-resistance for minimal signal distortion
  • Wide operating voltage range

Disadvantages

  • Limited to 2 channels, may not be suitable for applications requiring more channels
  • Requires careful consideration of I2C addressing to avoid conflicts

Working Principles

The PCA9543BPW,118 works by selectively connecting the SCL and SDA lines from the master I2C bus to one of the two channels. This allows the master to communicate with the desired I2C device on the selected channel while isolating the other devices.

Detailed Application Field Plans

The PCA9543BPW,118 finds application in various scenarios including: - Multi-sensor systems - Industrial automation - Consumer electronics - Automotive systems - IoT devices

Detailed and Complete Alternative Models

Some alternative models to the PCA9543BPW,118 include: - PCA9543A - TCA9542A - MAX7366

In conclusion, the PCA9543BPW,118 is a versatile I2C bus switch that simplifies the management of multiple I2C devices in a system. Its low on-resistance, wide operating voltage range, and hot insertion support make it an ideal choice for various applications.

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Orodhesha maswali na majibu 10 ya kawaida yanayohusiana na utumiaji wa PCA9543BPW,118 katika suluhu za kiufundi

  1. What is PCA9543BPW,118?

    • PCA9543BPW,118 is a 2-channel I2C-bus multiplexer with interrupt logic and an active-low reset input.

  2. How many channels does PCA9543BPW,118 have?

    • PCA9543BPW,118 has 2 channels for connecting multiple I2C devices to a single I2C bus.

  3. What is the purpose of using PCA9543BPW,118 in a technical solution?

    • The PCA9543BPW,118 allows multiple I2C devices with the same address to be connected to a single I2C bus, enabling communication with each device individually.

  4. How do I control the channel selection on PCA9543BPW,118?

    • Channel selection on PCA9543BPW,118 can be controlled through the I2C-bus interface.

  5. What is the voltage range supported by PCA9543BPW,118?

    • PCA9543BPW,118 supports a voltage range of 2.3V to 5.5V.

  6. Can PCA9543BPW,118 be used for level shifting?

    • Yes, PCA9543BPW,118 can be used for level shifting as it supports different voltage levels on its channels.

  7. Does PCA9543BPW,118 support hot insertion of I2C devices?

    • Yes, PCA9543BPW,118 supports hot insertion of I2C devices without disrupting the operation of other connected devices.

  8. What is the maximum frequency supported by PCA9543BPW,118?

    • PCA9543BPW,118 supports a maximum frequency of 400kHz for the I2C-bus interface.

  9. Can PCA9543BPW,118 be cascaded to expand the number of channels?

    • Yes, multiple PCA9543BPW,118 devices can be cascaded to expand the number of available channels for I2C devices.

  10. Are there any application notes or reference designs available for using PCA9543BPW,118 in technical solutions?

    • Yes, application notes and reference designs are available from the manufacturer to assist in integrating PCA9543BPW,118 into technical solutions.