PCA9548ADW

Product Overview

Category

PCA9548ADW belongs to the category of multiplexers and switches.

Use

It is commonly used in electronic circuits to enable communication between multiple devices using a single bus.

Characteristics

• Allows multiple devices to share a common bus
• Provides bidirectional data transfer
• Supports I2C protocol
• Low power consumption
• Wide operating voltage range

Package

PCA9548ADW is available in a small-sized, surface-mount package.

Essence

The essence of PCA9548ADW lies in its ability to efficiently manage and control multiple devices connected to a single bus, simplifying circuit design and reducing complexity.

Packaging/Quantity

PCA9548ADW is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Operating Voltage: 2.3V to 5.5V
• Maximum Supply Current: 1.5mA
• Number of Channels: 8
• I2C Bus Compatibility: Standard-mode, Fast-mode, Fast-mode Plus
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The pin configuration of PCA9548ADW is as follows:

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| | | PCA9548ADW | |_______________________________________| | | | SDA0 1 28 VCC | | SCL0 2 27 SDA7 | | SDA1 3 26 SCL7 | | SCL1 4 25 SDA6 | | SDA2 5 24 SCL6 | | SCL2 6 23 SDA5 | | SDA3 7 22 SCL5 | | SCL3 8 21 SDA4 | | SDA4 9 20 SCL4 | | SCL4 10 19 GND | | SDA5 11 18 INT | | SCL5 12 17 RESET | | SDA6 13 16 A0 | | SCL6 14 15 A1 | |_______________________________________| ```

Functional Features

• Channel Selection: PCA9548ADW allows the user to select one of the eight available channels for communication with the desired device.
• Bidirectional Data Transfer: It supports bidirectional data transfer between the selected channel and the connected devices.
• Interrupt Output: The INT pin provides an interrupt signal to the microcontroller when a channel is selected or deselected.
• Reset Functionality: The RESET pin allows resetting the internal state of the multiplexer.
• Address Configuration: The A0 and A1 pins enable the user to configure the I2C address of the device.

Advantages and Disadvantages

Advantages

• Simplifies circuit design by reducing the number of bus lines required
• Enables efficient communication between multiple devices using a single bus
• Low power consumption enhances energy efficiency
• Wide operating voltage range ensures compatibility with various systems

Disadvantages

• Limited to I2C protocol compatibility
• May introduce additional complexity in managing multiple devices on a single bus

Working Principles

PCA9548ADW works by selectively connecting one of the eight input channels to the output channel, allowing communication between the selected channel and the connected devices. The selection of channels is controlled through the I2C bus by sending appropriate commands to the device.

Detailed Application Field Plans

PCA9548ADW finds applications in various fields where multiple devices need to communicate using a single bus. Some of the common application areas include: - Industrial automation - Automotive electronics - Consumer electronics - Telecommunications - Medical devices

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to PCA9548ADW are: - TCA9548A - TS5A3359 - ADG608

These models can be considered as alternatives based on specific requirements and compatibility with the system.

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