Software Details

Diagram

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MCUXpresso SDK High-Level Block Diagram
MCUXpresso SDK Detailed Block Diagram

MCUXpresso SDK High-Level Block Diagram

MCUXpresso SDK Detailed Block Diagram

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Features

Comprehensive Driver Library

Flexible peripheral drivers for rapid development
Optimized for performance and code size

RTOS Integration

FreeRTOS support with optimized configurations
Real-time application frameworks
Task management and scheduling examples

Middleware Components

Connectivity stacks (USB, Ethernet, wireless, communication protocols)
AI inference engines and neural network libraries
Audio processing and voice recognition libraries
Security frameworks and cryptographic libraries
Graphics and user interface components
Motor control and real-time control libraries
File systems and storage solutions
Partner middleware can be added using CMake and west manifests

Extensive Examples

Basic peripheral use cases to full technology demonstrations
Board-specific reference implementations
Out-of-box Demo Applications
Middleware component examples and integrations

Supported Devices

Expand All

Processors and Microcontrollers
- Arm Microcontrollers
  - MCX W Series Microcontrollers
    - MCX-W71
  - LPC800 Series: Low-Cost Arm^® Cortex^®-M0+-Based MCUs
    - LPC82X
    - LPC84X
    - LPC80X
    - LPC8N04
    - LPC86X
  - i.MX RT Crossover MCUs
  - LPC5500 Series: Arm^® Cortex^®-M33 Based Microcontroller Series for Mass Market, Leveraging 40nm Embedded Flash Technology
    - LPC55S6x
    - LPC553x
    - LPC552x-S2x
    - LPC551X-S1X
    - LPC550x
  - MCX C Series Microcontrollers
    - MCX-C04x
    - MCX-C14x-24x-44x
  - KM Series: Metrology Microcontrollers (MCUs) Based on Arm^® Cortex^®-M0+ Core
    - KM3x
  - MCX N Series Microcontrollers
    - MCX-N94-N54-N53-N52-N24
  - MCX A Series Microcontrollers
    - MCX-A13X-A14X-A15X
  - LPC54000 Series: Power-Efficient Microcontrollers (MCUs) Based on Arm^® Cortex^®-M4 Core
    - LPC546XX
    - LPC540XX
  - Kinetis^® E Series: 5V, Robust Microcontrollers (MCUs) Based on Arm^® Cortex^®-M0+/M4 Core
    - KE02_40
  - MCX E Series Microcontrollers
    - MCX-E24
    - MCX-E31
- Arm Processors
  - i.MX 9 Applications Processors
    - i.MX93
    - i.MX94
    - i.MX95
    - i.MX-952
  - i.MX 8 Series Applications Processors Multicore Arm^® Cortex^® Processors
    - i.MX8M
    - i.MX8MMINI
    - i.MX8MNANO
    - i.MX8ULP
    - i.MX8MPLUS
- Additional Architectures
  - 32-Bit DSC with 56800EX / 56800EF Core
Wireless Connectivity
- Wi-Fi + Bluetooth
  - Wi-Fi^® + Bluetooth^® + 802.15.4
    - IW612
    - AW611
    - 88W8977
    - RW610
    - RW612
    - 88W8987
    - IW611

Distribution Formats

MCUXpresso SDK is available in two main formats:

GitHub Repository SDK

Git-based distribution hosted on GitHub for modular development, continuous updates and collaborative workflows. The SDK uses multiple repositories managed by the Zephyr West tool to provide flexible, component-based development. See Getting Started for setup instructions.

SDK Package

Downloadable packages from SDK Builder for offline development. Starting with release 25.12.00, two package versions are available:

Classic SDK Package: Traditional board-specific packages with pre-configured IDE projects for MCUXpresso IDE, IAR, Keil, and other toolchains.
Repository-Layout SDK Package: Board-specific packages that maintain the same structure and build system as the GitHub Repository SDK, providing offline access to the repository-based development experience. Available when selecting the ARMGCC toolchain.

NOTE: From version 25.12.00 onward, selecting ARMGCC downloads the Repository Layout version; all other toolchains remain in the Classic version.

Delivery and Release

NXP integrates Coverity® Static Analysis and Black Duck Software Composition Analysis into the SDK development process to deliver secure, high-quality software.

Annual releases (June) for popular products, with Long-Term Support (LTS) on GitHub — back-ported security (SVE/PSIRT) and severe bug fixes for two years
Quarterly releases for NPI and recent products
SBOMs provided for all GitHub SDK repositories

Release	Release Name	Maintenance
LTS	26.06.00-LTS	2 years until June 2028
Quarterly	26.09.00	None, rebase to mainline
LTS	27.06.00-LTS	2 years until June 2029

Supported platforms are listed at MCUXpresso SDK Builder - SDK Versions .

Toolchain Support

All driver examples and most application examples are provided for the following toolchains:

Toolchain	GitHub	Archive/Zip	Generated (west)	Getting Started
MCUXpresso IDE	-	eclipse	-	Link
MCUXpresso for VS Code		CMake	N.A.	Link
IAR Embedded Workbench		EWARM	EWARM	Link
Keil™ MDK-Arm	-	uVision	uVision	Link
CLI GNU toolchain		CMake	N.A.	Link

Archive/Zip packages can be downloaded from SDK Builder or imported directly in VS Code and MCUXpresso IDE using the Import Wizard .

Repository Architecture

The SDK uses a multi-repository structure on GitHub managed by the Zephyr West Tool, enabling:

Modular Organization: Drivers, RTOS, middleware, and examples in separate repositories
Customizable Manifests: Targeted setups for specific requirements
Selective Downloads: Include only needed components
Independent Updates: Component-level version control
Scalable Integration: Easy addition of new repository components

Other SDKs for Kinetis and LPC MCUs

Other SDKs

Downloads

Quick reference to our software types.

3 downloads

BSPs and Device Drivers
MCUXpresso SDK - GitHub repositoryupdated

EXTERNALRev 26.06.00Jun 30, 2026 13:05:00MCUXPRESSO-SDK-GITHUB-REP

Download
BSPs and Device Drivers
MCUXpresso SDK - Open-CMSIS-Packsupdated

EXTERNALRev 26.06.00Jun 30, 2026 13:05:00MCUXPRESSO-SDK-OPEN-CMSIS-PACK

Download
Examples and Quick Start Software
MCUXpresso SDK - SDK Builderupdated

EXTERNALRev 26.06.00Jun 30, 2026 13:05:00MCUXPRESSO-SDK

Download

Note: For better experience, software downloads are recommended on desktop.

Documentation

Quick reference to our documentation types

2 documents

Compact List

MCUXpresso SDK Fact Sheet[MCUXPRESSOSDKFS]

PDFMar 26, 2025Rev 14

MCUXpresso SDK Documentation[MCUXpresso-SDK-Documentation]Featured

EXTERNALJun 30, 2026Rev 26.06.00

Design Resources

Hardware

Quick reference to our board types.

1-5 of 22 hardware offerings

Evaluation and Development Boards
FRDM Development Board for MCX A343 and MCX A344 MCUs
Active

FRDM-MCXA344
Evaluation and Development Boards
FRDM Development Board for MCX C041 MCUs
Active

FRDM-MCXC041
Evaluation and Development Boards
FRDM Development Board for MCX A14x/A15x MCUs
Active

FRDM-MCXA153
Additional hardware available. View our featured partner solutions.
Evaluation and Development Boards
FRDM Development Board for RW612 Wi-Fi 6 + Bluetooth Low Energy + 802.15.4 Tri-Radio Wireless MCU
Active

FRDM-RW612
Evaluation and Development Boards
FRDM Development Board for MCX E31 MCUs
Active

FRDM-MCXE31B
Evaluation and Development Boards
FRDM Development Board for MCX A173 and A174 MCUs
Active

FRDM-MCXA174
Evaluation and Development Boards
FRDM Development Board for MCX W71 Wireless MCUs
Active

FRDM-MCXW71
Evaluation and Development Boards
Kinetis^® KV3x Family Tower^® System Module
Active

TWR-KV31F120M
Evaluation and Development Boards
FRDM Development Board for MCX W23 Wireless MCUs
Active

FRDM-MCXW23
Evaluation and Development Boards
FRDM Development Board for MCX N23x MCUs
Active

FRDM-MCXN236
Evaluation and Development Boards
1.2" Wearable Display G1120B0MIPI
Active
Expansion Board

G1120B0MIPI
Evaluation and Development Boards
i.MX RT700 Evaluation Kit
Active

MIMXRT700-EVK
Evaluation and Development Boards
FRDM Development Board for MCX C444 MCUs
Active

FRDM-MCXC444
Evaluation and Development Boards
FRDM Development Board for MCX A345 and MCX A346 MCUs
Active

FRDM-MCXA346
Evaluation and Development Boards
FRDM Development Board for MCX N94/N54 MCUs
Active

FRDM-MCXN947
Evaluation and Development Boards
FRDM Development Board for MCX A144/5/6 A154/5/6 MCUs
Active

FRDM-MCXA156
Evaluation and Development Boards
Evaluation Kit for MCX N54x MCUs
Active

MCX-N5XX-EVK
Evaluation and Development Boards
FRDM Development Board for MCX C242 MCUs
Active

FRDM-MCXC242
Evaluation and Development Boards
Evaluation Kit for MCX N94x MCUs
Active

MCX-N9XX-EVK
Reference Design
Localization Reference Design

RD-KW45-LOCALIZATION
Reference Design
1.43" Wearable Display ZC143AC72MIPI
Active

ZC143AC72MIPI
Reference Design
Localization Board for KW47 Bluetooth Channel Sounding MCU
Active

KW47-LOC

Show All

1-5 of 10 hardware offerings

Embedded Board Solutions
uCMK6x IoT SoM

K60/K64 MCU based SoM for secure IoT systems. It includes Mbarx Secure IoT software for connectivity, telemetry, management, OTA firmware updates over Ethernet or Wi-Fi.

By Arcturus Gold Partner
Embedded Board Solutions
SBC IMX8M Mini

MINA Single Board Computer SBC built upon the NXP i.MX8M Mini embedded multicore applications processor. It’s standard 3,5” and SMARC 2.0 form factor guarantees the compl...

By Firstview Consultants Gold Partner
Embedded Board Solutions
IMX8M Mini SMARC 2.0 Module

Anita i.MX8M Mini CPU I.MX8M Mini general purpose system on module compliant with SMARC 2.0.Designed to work in Industrial, Automotive and consumer environment.

By Firstview Consultants Gold Partner
Embedded Board Solutions
uCMK64 VoIP SoM

K64 MCU based SoM for hardened VoIP and IP audio/PA applications. Supports SIP/RTP with audio processing including intelligibility enhancements. SIPxtream + Mbarx secure ...

By Arcturus Gold Partner
Embedded Board Solutions
iMX RT1176 uCOM Board

The tiny (42x45mm) board supports heterogeneous multi-core processing with Cortex-M7/M4 cores. 16 MByte QSPI flash, 32 MByte SDRAM, Gigabit Ethernet-PHY and optional Wi-F...

By Embedded Artists AB Gold Partner
Embedded Board Solutions
iMX RT1064 uCOM Board

The tiny (42x45mm) board ideal for graphical user interface and communication designs. 4 MByte QSPI flash. 32 MByte SDRAM. 10/100 Mbps Ethernet-PHY. Optional Wi-Fi/BT 1XK...

By Embedded Artists AB Gold Partner
Embedded Board Solutions
iMX RT1166 uCOM Board

The tiny (42x45mm) board supports heterogeneous multi-core processing with Cortex-M7/M4 cores. 16 MByte QSPI flash, 32 MByte SDRAM, 1XK Murata Wi-Fi 4 and Bluetooth modul...

By Embedded Artists AB Gold Partner
Evaluation and Development Boards
NINA-B5 EVK

Evaluation kit for NINA-B50 stand-alone modules with Bluetooth 5.3 low energy long range, and Thread/Zigbee/Matter

By u-blox AG Gold Partner
Evaluation and Development Boards
MAYA-W4 EVK

Evaluation kit for MAYA-W4 host-based modules with Wi-Fi 6, Bluetooth 5.4, and 802.15.4

By u-blox AG Gold Partner
Evaluation and Development Boards
ETNA TS 250 DevKit Expansion Board

ETNA TS 250 is the first DevKit with Ranging & Radar capabilities based on the TSRR 250 UWB Module. ETNA can exploit 3D AoA & Radar algorithm enabling Presence De...

By TrueSense SRL Gold Partner