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Home Products Integrated Circuits (ICs)Interface - I/O Expanders~~PCA9555DBQRG4~~

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PCA9555DBQRG4 - Luminary Micro / Texas Instruments

Name: Luminary Micro / Texas Instruments PCA9555DBQRG4
Brand: Luminary Micro / Texas Instruments
SKU: PCA9555DBQRG4
Price: 0.945 USD
Availability: InStock
Rating: 5 (3 reviews)

Manufacturer Part Number: PCA9555DBQRG4

Manufacturer: Texas Instruments

Allelco Part Number: 98D-PCA9555DBQRG4

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 47,388 pcs available, New & Original

Parts Description: IC I/O EXPANDER I2C 16B 24QSOP

Package: 24-SSOP/QSOP

Data sheet: -

RoHs Status: Lead free / RoHS Compliant

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In stock: 47388

Unit Price: $0.945
Subtotal: $0.00

Want a better price?
Add to Cart and Submit RFQ now, we'll contact you immediately.

Quantity	Unit Price	Ext. Price
1+	$0.945	$0.95

The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

PCA9555DBQRG4 Tech Specifications
Luminary Micro / Texas Instruments - PCA9555DBQRG4 technical specifications, attributes, parameters and parts with similar specifications to Luminary Micro / Texas Instruments - PCA9555DBQRG4

Product Attribute	Attribute Value
Manufacturer	Texas Instruments
Voltage - Supply	2.3 V ~ 5.5 V
Supplier Device Package	24-SSOP/QSOP
Series	-
Packaging	Tape & Reel (TR)
Package / Case	24-SSOP (0.154", 3.90mm Width)
Output Type	Push-Pull
Operating Temperature	-40°C ~ 85°C
Number of I/O	16
Mounting Type	Surface Mount

Product Attribute	Attribute Value
Moisture Sensitivity Level (MSL)	2 (1 Year)
Manufacturer Standard Lead Time	6 Weeks
Lead Free Status / RoHS Status	Lead free / RoHS Compliant
Interrupt Output	Yes
Interface	I²C, SMBus
Features	POR
Detailed Description	I/O Expander 16 I²C, SMBus 400kHz 24-SSOP/QSOP
Current - Output Source/Sink	10mA, 25mA
Clock Frequency	400kHz
Base Part Number	PCA9555

Environmental & Export Classifications

ATTRIBUTE	DESCRIPTION
RoHs Status	Lead free / RoHS Compliant

Parts with Similar Specifications

The three parts on the right have similar specifications to Luminary Micro / Texas Instruments PCA9555DBQRG4

Product Attribute
Part Number	PCA9555DWRG4	PCA9555DBQR	PCA9555DWG4	PCA9555DBR
Manufacturer	Texas Instruments	Texas Instruments	Luminary Micro / Texas Instruments	Texas Instruments
Packaging	-	-	-	-
Moisture Sensitivity Level (MSL)	-	-	-	-
Series	-	-	-	-
Lead Free Status / RoHS Status	-	-	-	-
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Number of I/O	-	-	-	-
Current - Output Source/Sink	-	-	-	-
Base Part Number	-	-	-	-
Output Type	-	Current - Unbuffered	Voltage - Buffered	-
Detailed Description	-	-	-	-
Features	-	-	-	Simultaneous Sampling
Manufacturer Standard Lead Time	-	-	-	-
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Interface	-	-	-	-
Voltage - Supply	-	-	-	-
Interrupt Output	-	-	-	-
Clock Frequency	-	-	-	-
Supplier Device Package	-	196-NFBGA (12x12)	16-PDIP	64-VQFN (9x9)

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Customer Reviews

Evaluation: 10 Articles

Nath***rooks

Jun 11, 2026

Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.
Dani***alkerTech

Jun 1, 2026

Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.
Yuki***aka88

May 26, 2026

信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。
Stev***aker

May 20, 2026

Solid diode for power rectification. Works well in switching circuits.
Bran***Lewis

May 11, 2026

Compact FPGA with good performance. Suitable for basic signal processing tasks.
Oliv***arris

May 7, 2026

Reliable I/O expander. Works well in embedded control applications.
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.

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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

Use your express account for shipment if you have one.
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

Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
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
America	Brazil	7
Europe	Germany	5
	United Kingdom	4
	Italy	5
Oceania	Australia	6
Oceania	New Zealand	5
Asia	India	4
Asia	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.

QC (Quality Warranty)
Payment Support
Packaging
Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.

Strict quality inspection builds a solid foundation for electronic component quality.

Visual inspection
Performance testing and reliability verification
Standardized full-process testing
Precise control of every parameter

We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.

Quality Inspection

Payment Support

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

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Fast Sourcing & Delivery

Contact us if you have any questions.

Phone: +00852 9146 4856
Email: info@allelco.com

Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.

ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification

ISO 9001: 2015
ISO 13485: 2016
ISO 14001: 2015
ISO 28000: 2007
ISO 45001: 2018
GB/T 27922-2011

SMTA
IPC
ESD
PSMA

PCA9555DBQRG4

Luminary Micro / Texas Instruments
98D-PCA9555DBQRG4

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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Please refer to the English Version as our Official Version.Return

PCA9555DBQRG4 - Luminary Micro / Texas Instruments

Specifications

Environmental & Export Classifications

Parts with Similar Specifications

Customers Also Interested in

Recommended Products

Customer Reviews

Evaluation: 10 Articles

Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

Solid diode for power rectification. Works well in switching circuits.

Compact FPGA with good performance. Suitable for basic signal processing tasks.

Reliable I/O expander. Works well in embedded control applications.

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.

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.

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.

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.