Package and footprint review
Clarify package fit, mechanical references, and footprint-related questions before design or sourcing moves forward.
Read the manufacturer datasheet for PCA8574D,518 by NXP Semiconductors. Search the PDF, review the main part details, and request pricing for this Interface - I/O Expanders component without leaving the page.
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Technical summary
PCA8574D,518 from NXP Semiconductors is a Interface - I/O Expanders device in 16-SOIC package. Use this manufacturer datasheet to review its electrical, mechanical, and ordering information.
Interface
I2C
Supply Voltage
2.3 V to 5.5 V
Number of I/O
8
Use the PCA8574D,518 datasheet from NXP Semiconductors to verify the ratings, package details, operating limits, and ordering information that apply to your design or sourcing decision.
Embedded PDF
Engineering support
If your team is stuck on package interpretation, pin-level review, missing electrical details, or qualification questions around PCA8574D,518 from NXP Semiconductors, contact our engineering-friendly team for a more technical discussion.
You can email our engineering support contact at [email protected], or use the contact page if your question needs a broader handoff.
Clarify package fit, mechanical references, and footprint-related questions before design or sourcing moves forward.
Work through pin naming, signal mapping, interface expectations, and other datasheet interpretation issues.
Surface the missing specs, compliance documents, or qualification details your team still needs before approval.
PCA8574D,518 cross reference and alternatives
Review mapped alternatives for PCA8574D,518 from NXP Semiconductors. Compare replacement type, package, lifecycle, stock, and sourcing context before RFQ or engineering approval.
Same-function SOIC-16 P2P review candidate for PCA8574D,518. Validate quasi-bidirectional I/O and firmware assumptions.
Replacement Type
Pin-to-pin option
Lifecycle status
0
key Attributes
-
Available Quantity
20,000
NXP recommended functional replacement path with newer low-voltage translating GPIO features; layout and firmware review required.
Replacement Type
Functional
Lifecycle status
0
key Attributes
-
Available Quantity
20,000
Interface - I/O Expanders
Explore more parts from the same subcategory to compare fit, stock, and sourcing options.

16-bit I2C I/O expander in 24-TSSOP used as a direct P2P candidate.

16-bit low-voltage translating I2C/SMBus GPIO expander used as NXP functional replacement.

16-bit I2C-bus I/O expander in 24-TSSOP, listed by NXP for 2026 last-time buy.

8-bit I2C/SMBus I/O expander in 16-TSSOP used as a P2P review candidate.

16-bit I2C-bus I/O expander in 24-SSOP, listed by NXP for 2026 last-time buy.
Common questions
PCA8574D,518 is a Interface - I/O Expanders component from NXP Semiconductors. This page provides the manufacturer datasheet together with the core part information needed for review and sourcing.
Use the PDF search field above the viewer. Search runs inside the PDF.js reader so you can review matches without leaving the document.
Yes. Use the Request Quote action on this page to submit your email, quantity, and target price for PCA8574D,518 from NXP Semiconductors.
This datasheet page lists PCA8574D,518 with package reference 16-SOIC. Engineers should use the PDF to verify footprint, pin layout, and mechanical details before design or replacement decisions.
Start with the sections covering key ratings, electrical limits, interface behavior, and the attribute group beginning with Product Attribute. Those areas usually confirm whether PCA8574D,518 fits the intended design constraints.
Yes. This page provides a direct download for the PCA8574D,518 manufacturer datasheet PDF from NXP Semiconductors, while keeping the HTML datasheet page available for search and review.
