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HomeProductsIntegrated Circuits (ICs)Interface - SpecializedPCA9543AD
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PCA9543AD - Texas Instruments

Manufacturer Part Number
PCA9543AD
Manufacturer
Texas Instruments
Allelco Part Number
32D-PCA9543AD
Warranty
1 Year Allelco Warranty - Find out more
Parts Description
IC INTERFACE SPECIALIZED 14SOIC
Package
14-SOIC
Data sheet
1.PCA9543AD.pdf ...

HTML Datasheet

Logic Guide.pdf
RoHs Status
ROHS3 Compliant
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Specifications

PCA9543AD Tech Specifications
Texas Instruments - PCA9543AD technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - PCA9543AD

Product Attribute Attribute Value  
Manufacturer Texas Instruments  
Voltage - Supply 2.3V ~ 5.5V  
Supplier Device Package 14-SOIC  
Series -  
Package / Case 14-SOIC (0.154', 3.90mm Width)  
Product Attribute Attribute Value  
Package Tube  
Mounting Type Surface Mount  
Interface I²C, SMBus  
Base Product Number PCA9543  
Applications 2-Channel I²C Multiplexer  

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

Manufacturer Part Number

PCA9543AD

Manufacturer

Texas Instruments

Introduction

The PCA9543AD is an interface specialized product designed for applications requiring multiple I2C or SMBus channel access.

Product Features and Performance

2-channel I2C multiplexer allowing two downstream channels

I2C and SMBus interface support

Operates across a wide voltage range of 2.3V to 5.5V

Surface mount package for easy PCB integration

Product Advantages

Enables connection of multiple I2C devices with identical addresses

Low voltage operation supports a wide range of applications

Flexible interface compatibility enhances system design

Key Technical Parameters

Voltage Supply: 2.3V ~ 5.5V

Interface: I2C, SMBus

Package/Case: 14-SOIC

Mounting Type: Surface Mount

Quality and Safety Features

Texas Instruments' commitment to high manufacturing standards ensures product reliability

Engineered for robustness in various environmental conditions

Compatibility

Compatible with devices requiring I2C or SMBus communication

Suitable for use in systems with 2.3V to 5.5V power supplies

Application Areas

Multi-channel I2C/SMBus device management

Systems requiring multiple sensors or peripherals with the same I2C address

IoT devices, consumer electronics, automotive systems, and industrial controls

Product Lifecycle

Status: Last Time Buy

Indicates nearing discontinuation, suggesting reviewing replacements or upgrades

Several Key Reasons to Choose This Product

Supports complex I2C-based systems by enabling multiple device connections

Versatile voltage range for wide application compatibility

Produced by Texas Instruments, ensuring reliability and performance

Simplifies system design with surface mount and easy integration features

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments PCA9543AD

Product Attribute PCA9543ADR PCA9543AD,112 PCA9543AD,118 PCA9543ADG4
Part Number PCA9543ADR PCA9543AD,112 PCA9543AD,118 PCA9543ADG4
Manufacturer Texas Instruments NXP USA Inc. NXP USA Inc. Texas Instruments
Applications - - - -
Voltage - Supply - - - -
Interface - - - -
Series - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Base Product Number - DAC34H84 MAX500 ADS62P42
Mounting Type - Surface Mount Through Hole Surface Mount

PCA9543AD Datasheet PDF

Download PCA9543AD pdf datasheets and Texas Instruments documentation for PCA9543AD - Texas Instruments.

HTML Datasheet
Logic Guide.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

  • Daic***K.
    Mar 23, 2026

    Very good. No issue after long time testing.

  • Kevi***.
    Mar 17, 2026

    Fast switching and stable output. Very satisfied with this IC

  • Daou***hekebkeb
    Jun 16, 2024

    I had a great experience purchasing items from Allelcoelec, I recommend

  • Uri ***al
    Jun 19, 2024

    Good comunication,
    Transpnt regarding the process and price.

  • Yaqu***l Ali
    Jun 19, 2024

    Providing reasonable prices, regular follow-up of orders, providing accurate and regular invoices, timely delivery of goods, excellent customer service and providing original goods and best quality materials.

  • Lea ***
    Jun 19, 2024

    Morrey was very helpful and right on top of things!
    He replied quickly to my RFQ. He was very courteous and professional.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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PCA9543AD Image

PCA9543AD

Texas Instruments
32D-PCA9543AD

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