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Name: PCA9545APWT
Brand: Texas Instruments
SKU: PCA9545APWT
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 PCA9545APWT

Part No.:: PCA9545APWT

Manufacturer:: Texas Instruments

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

Datasheet:: PCA9545APWT.pdf

Description:: IC INTERFACE SPECIALIZED 20TSSOP

In Stock:: 47200

Quantity:: Add To Cart

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PCA9545APWT Specifications

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

PCA9545APWT this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including PCA9545APWT 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 PCA9545APWT 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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PCA9545APWT information

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PCA9545APWT Typical application Circuitry

PCA9545APWT

The PCA9545APWT is an integrated circuit belonging to the PCA series, specifically designed as a 4-channel I2C-bus switch. Produced by Texas Instruments, this chip is instrumental in systems requiring multiple I2C devices to be connected to a single I2C bus, particularly when these devices have overlapping addresses. Its typical applications include server management, advanced telecommunications, and multi-sensor systems, where it facilitates efficient communication among various I2C peripherals.

1. Power Supply and Voltage Inputs: The PCA9545APWT operates within a voltage range of 2.3V to 5.5V, accommodating different logic level requirements of various systems. The chip's VDD pin connects to the positive power supply, while the GND pin is linked to the ground. To ensure the stability of the device, it's recommended to implement decoupling capacitors near the power input pins to negate voltage fluctuations and reduce electrical noise.

2. Pin Configuration and Connection Details: The PCA9545APWT features a series of pins, each with a specific function. The main I2C bus is connected through the SDA and SCL pins, while four additional sets of SDAx and SCLx pins provide connections to the individual I2C channels. Additionally, it has three address pins (A0, A1, A2) for setting the I2C address of the switch. An interrupt pin (INT) is also present, which alerts the main controller to any changes or events on the downstream I2C channels. Precise connections of these pins are crucial for the switch to function correctly and manage I2C traffic effectively.

3. System Integration: In an I2C network, the PCA9545APWT plays a key role in managing traffic between a single I2C master and multiple slave devices, even if they have the same address. Its integration involves configuring the master device to control the channel selection on the PCA9545APWT, thereby enabling communication with the appropriate I2C device on each channel.

4. Performance and Versatility in Usage: The PCA9545APWT is renowned for its ability to maintain signal integrity in complex I2C networks. Its design allows for the connection of multiple I2C devices to a single master, managing potential address conflicts with ease. This makes it a highly versatile and useful component in various sophisticated electronic systems where multiple I2C devices need to be managed efficiently.

5. Circuit Design and PCB Layout Insights: The circuit design for the PCA9545APWT requires careful planning, particularly in the routing of the I2C bus lines to avoid interference and signal degradation. Ensuring the integrity of the SDA and SCL lines, both for the main bus and the individual channels, is crucial. A well-optimized PCB layout is key to the effective performance of the I2C switch, minimizing cross-talk and ensuring reliable operation.

6. Standards and Compliance: The PCA9545APWT complies with the industry standards for I2C communication, ensuring its compatibility and reliability in a wide range of applications. This adherence to standards guarantees the device's interoperability with various I2C devices.

7. Handling and Installation Considerations: Given its sensitivity to electrostatic discharge (ESD), the PCA9545APWT requires careful handling and installation. Employing ESD protection measures is essential to maintain the device's integrity and functionality.

In conclusion, the PCA9545APWT is a crucial component in complex I2C networks, offering efficient management of multiple I2C devices. Proper use involves ensuring a stable power supply, accurate pin connection, strategic system integration, leveraging its versatile performance, thoughtful circuit design, adherence to industry standards, and careful handling and installation. These practices ensure the PCA9545APWT operates effectively, facilitating robust I2C communication in diverse electronic applications.

PCA9545APWT FAQ

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6. What is the process for return or replacement of PCA9545APWT?

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 PCA9545APWT we delivered, we will accept the replacement or return of the PCA9545APWT 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 PCA9545APWT.

(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