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PCA9540BD
Allows selection of one of two I2C busesPCA9540BD
Allows selection of one of two I2C buses
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Manufacturer Part # : PCA9540BD
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Package/Case: SOIC-8
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Brand: Freescale Semiconductor
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Product Categories : Specialized
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Service & Packaging
Service & Packaging
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PCA9540BD DataSheet
Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
Revolutionize your I2C bus management with the PCA9540BD, a cutting-edge multiplexer/demultiplexer IC from Texas Instruments. Designed to simplify the integration of multiple I2C buses into a single, streamlined system, this versatile device boasts four bidirectional channels that enable seamless switching between different buses and devices. Through independent channel control facilitated by the I2C bus, users gain unprecedented flexibility in customizing data pathways, tailoring configurations to meet the unique demands of their application. The integrated interrupt output feature provides real-time updates on channel selections, ensuring smooth transitions and seamless communication in complex systems. Widely used in sensor networks, industrial automation, and embedded systems, the PCA9540BD delivers unparalleled performance and reliability, supporting critical functions in diverse electronic environments. Housed in a compact 16-pin TSSOP package, this IC is optimized for space-constrained designs, while its wide voltage range compatibility ensures seamless integration with various systems. Elevate your I2C bus management capabilities with the PCA9540BD today
Key Features
- Improved system reliability and availability
- Increased data accuracy and integrity
- Simplified system troubleshooting and maintenance
- Reduced system downtime for increased productivity
Application
- IoT devices benefit
- Industrial automation uses
- Bus segment isolation
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| LAST_BUY_DTE | Jan 24, 2018 | salesNum | PCA9540BD,112 |
| LAST_DELIVERY_DTE | Jul 24, 2018 | pack_type | TUBE |
| pack_desc | Bulk Pack | minPackQty | 100 |
| status | No Longer Manufactured |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is PCA9540BD?
The PCA9540BD is an I2C-bus controlled 1-of-2 bidirectional multiplexer designed by NXP Semiconductors. It is ideal for applications requiring I2C signal routing and management, such as multi-sensor systems, communication modules, and industrial control systems.
How Does PCA9540BD Work?
The PCA9540BD works by enabling a microcontroller or other master device to selectively route the I2C-bus signals to one of the two available channels. This allows the master device to communicate with different I2C slave devices through the multiplexer, effectively expanding the I2C-bus capability and addressing multiple devices using the same bus.
How Many Pins does PCA9540BD have and What are the Functions of the Pinout Configuration?
The PCA9540BD is housed in a 8-pin SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:
- EN: Enable input for controlling the multiplexer operation.
- GND: Ground pin for the device.
- SCL: I2C-bus clock signal input/output.
- SDA: I2C-bus data signal input/output.
- Y0: Channel 0 bidirectional I2C-bus pin.
- Y1: Channel 1 bidirectional I2C-bus pin.
- VCC: Power supply pin for the device.
What are the Pros and Cons of PCA9540BD?
Pros:
- Signal Routing: Allows for I2C signal routing and management, enabling communication with multiple I2C slave devices using a single bus.
- I2C-Bus Expansion: Provides expanded I2C-bus capability, allowing for efficient addressing of multiple devices.
- Bidirectional Operation: Supports bidirectional communication between the master device and the selected slave device.
- Simple Control: Controlled through the I2C-bus interface, offering ease of use and flexibility.
Cons:
- Complexity: Requires careful consideration of I2C-bus timing and addressing for reliable operation in multi-device systems.
- Additional Overhead: Introduces additional complexity and potential for signal integrity issues in the I2C-bus communication.
Are There Any Equivalents/Alternatives to PCA9540BD for Recommendation?
- The TCA9542A from Texas Instruments is a similar I2C-bus multiplexer with different channel configurations.
- Alternatives to the PCA9540BD include the LTC4317 from Analog Devices and the MAX7360 from Maxim Integrated.
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