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PCA9548ABSHP

PCA9548ABSHP

Product Overview

Category

PCA9548ABSHP belongs to the category of integrated circuits (ICs).

Use

This product is primarily used for multiplexing I2C bus signals.

Characteristics

  • Package: PCA9548ABSHP is available in a small outline package (SOP).
  • Essence: It is an 8-channel I2C multiplexer.
  • Packaging/Quantity: The product is typically packaged in reels and comes in quantities of 2500 units per reel.

Specifications

The specifications of PCA9548ABSHP are as follows:

  • Supply Voltage Range: 2.3V to 5.5V
  • Operating Temperature Range: -40°C to +85°C
  • I2C Bus Frequency: Up to 400kHz
  • Number of Channels: 8
  • Channel-to-Channel Isolation: > 5kV ESD protection
  • Low Standby Current: < 1µA

Detailed Pin Configuration

The pin configuration of PCA9548ABSHP is as follows:

  1. SDA: Serial Data Input/Output
  2. SCL: Serial Clock Input
  3. A0-A2: Address Inputs
  4. EN: Enable Input
  5. OUT0-OUT7: Multiplexed Outputs

Functional Features

  • Channel Selection: PCA9548ABSHP allows the user to select one of the eight channels for communication.
  • I2C Bus Compatibility: It is fully compatible with the I2C bus protocol.
  • Low Power Consumption: The product has low standby current, making it suitable for power-sensitive applications.
  • ESD Protection: PCA9548ABSHP provides high-level electrostatic discharge (ESD) protection for reliable operation.

Advantages and Disadvantages

Advantages: - Enables efficient multiplexing of I2C bus signals. - Wide supply voltage range allows for flexibility in various applications. - High channel-to-channel isolation ensures reliable data transmission.

Disadvantages: - Limited to 8 channels, which may not be sufficient for certain complex systems. - Requires careful consideration of address inputs for proper channel selection.

Working Principles

PCA9548ABSHP works by receiving control signals through the SDA and SCL pins. The address inputs (A0-A2) determine the channel to be selected. When a specific channel is enabled using the EN pin, the corresponding multiplexed output (OUT0-OUT7) becomes active, allowing communication on that channel.

Detailed Application Field Plans

PCA9548ABSHP finds applications in various fields, including but not limited to:

  1. Industrial Automation: Used for controlling multiple I2C devices in industrial automation systems.
  2. Automotive Electronics: Enables efficient communication with multiple sensors and actuators in automotive electronics.
  3. Consumer Electronics: Facilitates communication between different I2C devices in consumer electronic products.
  4. Medical Devices: Allows for multiplexing I2C signals in medical devices, ensuring accurate data transfer.

Detailed and Complete Alternative Models

Some alternative models to PCA9548ABSHP include:

  1. PCA9547RGER: 8-channel I2C multiplexer with reset function.
  2. TCA9548APWR: 8-channel I2C multiplexer with interrupt output.
  3. TS5A3359DCKR: 4-channel bidirectional analog switch with I2C control.

These alternative models offer similar functionality and can be considered based on specific requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací PCA9548ABSHP v technických řešeních

Sure! Here are 10 common questions and answers related to the application of PCA9548ABSHP in technical solutions:

  1. Q: What is PCA9548ABSHP? A: PCA9548ABSHP is a multiplexer/demultiplexer IC (Integrated Circuit) that allows multiple I2C devices to share the same I2C bus.

  2. Q: How many channels does PCA9548ABSHP have? A: PCA9548ABSHP has 8 channels, which means it can connect up to 8 different I2C devices.

  3. Q: How does PCA9548ABSHP work? A: PCA9548ABSHP uses control registers to select one of the channels and route the I2C communication to the selected channel.

  4. Q: What is the purpose of using PCA9548ABSHP in a technical solution? A: PCA9548ABSHP is used to expand the number of I2C devices that can be connected to a microcontroller or other I2C master device.

  5. Q: Can PCA9548ABSHP be used with any microcontroller? A: Yes, PCA9548ABSHP can be used with any microcontroller that supports I2C communication.

  6. Q: How do I control PCA9548ABSHP from my microcontroller? A: You need to send specific commands to the control registers of PCA9548ABSHP using the I2C protocol.

  7. Q: Can PCA9548ABSHP be cascaded to connect more than 8 I2C devices? A: Yes, multiple PCA9548ABSHP ICs can be cascaded together to connect more than 8 I2C devices.

  8. Q: What is the maximum operating frequency of PCA9548ABSHP? A: PCA9548ABSHP can operate at a maximum frequency of 400 kHz.

  9. Q: Does PCA9548ABSHP require external power supply? A: Yes, PCA9548ABSHP requires an external power supply (VCC) for its operation.

  10. Q: Can PCA9548ABSHP be used in both industrial and consumer applications? A: Yes, PCA9548ABSHP is suitable for use in both industrial and consumer applications where multiple I2C devices need to be connected.