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Name: PCA9545APWR
Brand: Texas Instruments
SKU: PCA9545APWR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Texas Instruments PCA9545APWR

Part No.:: PCA9545APWR

Manufacturer:: Texas Instruments

Package:: 20-TSSOP (0.173, 4.40mm Width)

Datasheet:: PCA9545APWR.pdf

Description:: IC INTERFACE SPECIALIZED 20TSSOP

In Stock:: 2695

Quantity:: Add To Cart

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PCA9545APWR Specifications

Package/Case:
20-TSSOP (0.173, 4.40mm Width)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
Applications:
Translating Switch
Interface:
I²C, SMBus
Voltage-Supply:
2.3V ~ 5.5V

PCA9545APWR this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including PCA9545APWR price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for PCA9545APWR to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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PCA9545APWR information

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PCA9545APWR Typical application Circuitry

PCA9545APWR

The PCA9545APWR is a multi-channel I2C switch, belonging to the PCA series from Texas Instruments. It's specifically designed to enable communication with multiple I2C devices having identical addresses by providing four separate I2C-bus channels, each with their own set of bidirectional data (SDA) and clock (SCL) lines. This component is commonly used in complex electronic systems like servers, telecommunications, and advanced industrial control systems, where managing numerous I2C devices efficiently is crucial.

1. Power Supply and Voltage Inputs: The PCA9545APWR operates with a flexible voltage range, typically from 2.3V to 5.5V, making it compatible with various logic levels and suitable for diverse electronic systems. It requires a stable power supply to ensure accurate and reliable operation. The GND pin is linked to the ground, while the VDD pin is connected to the power source. Using decoupling capacitors near the VDD pin is recommended to filter out any electrical noise and provide a stable power supply.

2. Pin Configuration and Connection Strategy: The PCA9545APWR comprises several essential pins that must be connected precisely. It features an SDA and SCL pair for the main I2C bus, and four additional SDAx and SCLx pairs for the individual I2C channels. Three address selection pins (A0, A1, A2) enable setting the device's I2C address. An interrupt pin (INT) is also present, signaling the presence of an interrupt from any of the downstream I2C channels. Accurate connection of these pins is vital for the proper functioning of the I2C switch.

3. Integration in I2C Networks: When integrated into an I2C network, the PCA9545APWR serves as a critical component for managing multiple I2C devices efficiently. It allows a single I2C master to communicate with multiple slave devices, even if they share the same address, by selecting the appropriate channel on the switch. The integration process requires careful programming of the master device to control the channel selection, ensuring seamless communication with the appropriate I2C device.

4. Performance and Application Adaptability: The PCA9545APWR is recognized for its ability to maintain signal integrity and facilitate effective communication in complex I2C networks. Its capability to connect multiple I2C devices, even with identical addresses, to a single master device without interference or data loss, makes it a versatile component suitable for various applications in sophisticated electronic systems.

5. Circuit Design and PCB Layout Considerations: Designing a circuit for the PCA9545APWR involves meticulous planning, especially regarding trace routing for the I2C bus lines. It's important to ensure minimal interference and signal degradation, with careful placement of the SDA and SCL lines for both the main bus and individual channels. The PCB layout should be optimized to maintain signal integrity and minimize cross-talk between channels.

6. Compliance with Standards: The PCA9545APWR adheres to industry standards, ensuring compatibility and reliability in I2C-based applications. Its functionality and design adhere to the I2C bus specification, ensuring compatibility with a broad spectrum of I2C devices.

7. Handling and Installation Guidelines: The PCA9545APWR, like most electronic components, is sensitive to electrostatic discharge (ESD) and requires careful handling. ESD protection measures should be employed during handling and installation to preserve the integrity and functionality of the device.

In conclusion, the PCA9545APWR is an efficient multi-channel I2C switch, essential in complex electronic systems for managing numerous I2C devices. Proper utilization involves ensuring a stable power supply, precise pin connections, strategic integration into I2C networks, leveraging its performance for adaptable applications, careful circuit design, adherence to industry standards, and cautious handling and installation. These practices guarantee that the PCA9545APWR functions optimally, enhancing I2C communication capabilities in various electronic applications.

PCA9545APWR FAQ

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6. What is the process for return or replacement of PCA9545APWR?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the PCA9545APWR we delivered, we will accept the replacement or return of the PCA9545APWR only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of PCA9545APWR.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations