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NXP SemiconductorsIntegrated Circuits (ICs)Interface - I/O Expanders

PCAL6408AEX1Z Interface - I/O Expanders by NXP Semiconductors

PCAL6408AEX1Z is a Interface - I/O Expanders model from NXP Semiconductors, presented on TrustCompo for buyers who need clear sourcing and review context before RFQ. This listing sits in the Integrated Circuits (ICs) / Interface - I/O Expanders product path. Known package information currently points to 16-X2QFN under the NXP Semiconductors brand listing. Active low-voltage translating 8-bit I2C/SMBus GPIO expander used as NXP functional replacement. TrustCompo combines the available model, brand, hierarchy, and specification details around PCAL6408AEX1Z so buyers can move faster from review to quotation.

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PCAL6408AEX1Z Interface - I/O Expanders by NXP Semiconductors | TrustCompo
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Part Number

PCAL6408AEX1Z

Internal code

TCE000097716

Package

16-X2QFN

Manufacturer

NXP Semiconductors

Key specifications

Series

PCAL6408A

Min Quantity

1

Category

Integrated Circuits (ICs)

Sub Category

Interface - I/O Expanders

Description

Active low-voltage translating 8-bit I2C/SMBus GPIO expander used as NXP functional replacement.

key Attributes

-

Datasheet

View PCAL6408AEX1Z Datasheet

Technical document

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Why request a quote

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Trust signals

Globally recognized certifications

4 certifications

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ISO 9001

Quality management processes for more consistent sourcing and handling.

AS9120B

Aerospace-focused distribution controls for traceability and reliability.

ISO 14001

Environmental management discipline across warehouse and operating workflows.

ESD Control

Electrostatic handling standards to help protect sensitive components.

Ordering workflow

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How to order this product

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1

Confirm part and quantity

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2

Send RFQ or sample request

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3

Align delivery, payment, and documentation

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Quality & Traceability Center

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Structured product content

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Product overview

Overview

PCAL6408AEX1Z is an active NXP low-voltage translating 8-bit I2C and SMBus GPIO expander in 16-X2QFN. NXP names it as the recommended replacement for multiple 2026 EOL PCA8574, PCA9554, PCA9557, PCA9574, and PCA9674 package variants. It should be treated as a functional migration target because package, reset behavior, voltage domains, and register details may differ from legacy boards.

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Popular Specs Surfaced First

Product Parameter

Function

8-bit low-voltage translating GPIO expander

Product Attribute

Number Of I/O

8

Product Attribute

Lifecycle Status

Active

Product Attribute

Clock Frequency

400 kHz

Product Attribute

Manufacturer

NXP USA Inc.

Product Attribute

Interface

I2C / SMBus

Function
8-bit low-voltage translating GPIO expander
Number Of I/O
8
Lifecycle Status
Active
Clock Frequency
400 kHz
Manufacturer
NXP USA Inc.
Interface
I2C / SMBus
Supply Voltage
1.65 V to 5.5 V
Package / Case
16-X2QFN

PCAL6408AEX1Z cross reference and alternatives

PCAL6408AEX1Z replacement and cross-reference parts

Review mapped alternatives for PCAL6408AEX1Z from NXP Semiconductors. Compare replacement type, package, lifecycle, stock, and sourcing context before RFQ or engineering approval.

FunctionalNXP Semiconductors16-HVQFN

PCA9554BS,118

NXP recommended functional replacement path; package and register compatibility must be validated.

Replacement Type

Functional

Lifecycle status

LTB

key Attributes

-

Available Quantity

12,000

Sourcing Signal

Review mapped alternatives for PCAL6408AEX1Z from NXP Semiconductors. Compare replacement type, package, lifecycle, stock, and sourcing context before RFQ or engineering approval.

FunctionalNXP Semiconductors16-SOIC

PCA9554D,118

NXP recommended functional replacement path; not a drop-in due to package and behavior differences.

Replacement Type

Functional

Lifecycle status

LTB

key Attributes

-

Available Quantity

12,000

Sourcing Signal

Review mapped alternatives for PCAL6408AEX1Z from NXP Semiconductors. Compare replacement type, package, lifecycle, stock, and sourcing context before RFQ or engineering approval.

FunctionalNXP Semiconductors16-SSOP

PCA9554DB,118

NXP recommended functional replacement path; package and firmware changes require engineering review.

Replacement Type

Functional

Lifecycle status

LTB

key Attributes

-

Available Quantity

12,000

Sourcing Signal

Review mapped alternatives for PCAL6408AEX1Z from NXP Semiconductors. Compare replacement type, package, lifecycle, stock, and sourcing context before RFQ or engineering approval.

FunctionalNXP Semiconductors16-SOIC

PCA8574D,518

NXP recommended functional replacement path with newer low-voltage translating GPIO features; layout and firmware review required.

Replacement Type

Functional

Lifecycle status

LTB

key Attributes

-

Available Quantity

12,000

Sourcing Signal

Review mapped alternatives for PCAL6408AEX1Z from NXP Semiconductors. Compare replacement type, package, lifecycle, stock, and sourcing context before RFQ or engineering approval.

View all replacement options for PCAL6408AEX1Z

Common questions

Product FAQ

Quick answers for buyers reviewing PCAL6408AEX1Z, stock, documentation, and sourcing steps.

What is PCAL6408AEX1Z?

PCAL6408AEX1Z is a Interface - I/O Expanders component from NXP Semiconductors. This product page summarizes the core sourcing details buyers need before checking price, availability, documentation, or samples.

What package and description are listed for PCAL6408AEX1Z?

PCAL6408AEX1Z is listed with package reference 16-X2QFN. The current product description is Active low-voltage translating 8-bit I2C/SMBus GPIO expander used as NXP functional replacement., and buyers should confirm package, footprint, and electrical details against the datasheet or quotation notes before approval.

Is PCAL6408AEX1Z available in stock?

This page currently shows 30000 units in stock and 20000 units available for PCAL6408AEX1Z. Because electronic component availability can change quickly, submit an RFQ to confirm live stock, lead time, and final pricing.

Can I request a quote or sample for PCAL6408AEX1Z?

Yes. Use the Quick Quote or Request Sample action on this page to send the quantity and sourcing requirements for PCAL6408AEX1Z by NXP Semiconductors. The TrustCompo team can review price, availability, and documentation support.

Is a datasheet available for PCAL6408AEX1Z?

Yes. This page links to the datasheet for PCAL6408AEX1Z by NXP Semiconductors, so engineers and buyers can review package, ratings, and application details before purchase.

How should buyers verify PCAL6408AEX1Z before ordering?

Buyers should confirm the manufacturer, package, quantity, target price, RoHS or compliance needs, and any Certificate of Conformance or traceability requirements for PCAL6408AEX1Z before approving the order.

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