MCX A Series Microcontrollers

MCX A series MCUs, powered by the Arm® Cortex®-M33, are general-purpose MCUs designed to address a wide range of applications with scalable device options, low power and intelligent peripherals. The innovative power architecture is designed to support high utilization of I/Os and power efficiency with a simple supply circuit in a smaller footprint. Designed to support more GPIO pins for additional external connections, the MCX A allows designers to utilize a smaller package, simpler board design and lower system BOM costs. The MCX A Series is supported by the MCUXpresso Developer Experience.

Products
Key Features
Design Resources
Documents

Key Features

Scalability and balanced performance

The MCX A series is highly scalable, offering a balance between cost, performance and power consumption.

Autonomous and low-power peripherals

Autonomous peripherals take the load off the core for power-saving and power modes to keep the intelligent peripherals running while the core is in sleep.

MCUXpresso Developer Experience

MCUXpresso IDEs, SDK, secure provisioning and configuration tools help speed-up development time with high-quality software and tools.

MCX A Series Products

Series	Products	Main Clock	Flash	Features	Packages
MCX A1 Essential	MCX A13	96MHz	64 kB to 128 kB	ADC, I3C	H-PQFN32, HVQFN48, LQFP48
	MCX A14	48MHz	64 kB to 1 MB	1x/2x ADC, I3C, USB, Opt. CAN	H-PQFN32, HVQFN48, LQFP48, LQFP64, LQFP100, LFBGA64, VFBGA112
	MCX A15	96MHz	64 kB to 1 MB	1x/2x ADC, Opt. OpAmp, I3C, USB, Opt. CAN	H-PQFN32, HVQFN48, LQFP48, LQFP64, LQFP100, LFBGA64, VFBGA112
	MCX A17	180MHz	128 kB to 1 MB	2x ADC, OpAmp, Opt. I3C, USB, CAN	H-PQFN32, LQFP48, LQFP64, LQFP100, LQFP144, WFBGA169
	MCX A18	240MHz	512 kB to 1 MB	2x ADC, OpAmp, I3C, USB, 2x CAN, LCD	HVQFN48, LQFP64, LQFP100, LQFP144, VBGA169
MCX A2 Enhanced	MCX A25	180MHz	512kB to 1 MB	2x ADC, OpAmp, I3C, USB, CAN, Advance Security	LQFP64, LQFP100, LQFP144, WFBGA169
MCX A2 Enhanced	MCX A26	240MHz	512 kB to 1 MB	2x ADC, OpAmp, I3C, USB, 2x CAN, seg-LCD, Advance Security	LQFP64, LQFP100, LQFP144, WFBGA169
MCX A3 Mixed-Signals	MCX A34	180MHz	128 kB to 1 MB	2x/4x ADC, 3x/4x OpAmp, CAN	H-PQFN32, LQFP48, LQFP64, LQFP100, LQFP144, WFBGA169
	MCX A35	240MHz	512 kB to 1 MB	4x ADC, 4x OpAmp, CAN	HVQFN48, LQFP64, LQFP100, LQFP144, VBGA169
	MCX A36	240MHz	512 kB to 1 MB	4x ADC, 4x OpAmp, I3C, USB, CAN, LCD, Advance Security	HVQFN48, LQFP64, LQFP100, LQFP144, VBGA169

MCX A Series Just Doubled

Six new MCU families now power the MCX A Series, unlocking greater scalability and flexibility for Industrial and IoT designs.

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Commitment to Longevity

Digital signal controllers are ready to support your development today, tomorrow and beyond through our longevity program. The Product Longevity program ensures a stable supply of products for your embedded designs.

Learn more

Design Resources

Development Board

FRDM-MCXA153 Development Board

Standard form factor and headers, easy access to MCU I/Os, onboard MCU-Link debugger and a USB-C cable.

Video

Smarter Motor Control Starts Here

Unlock precision and performance with MCX A Series and FreeMASTER. Watch how smarter tools make motor control easier than ever.

MCX A Series: The All-Purpose MCU for Embedded Innovation

MCX A addresses applications needing strong IO capabilities, industry-leading power consumption and connectivity with simplified supply circuitry.

Download white paper

Documents

MCX A Series Factsheet

Discover how the benefits and features of the MCX A series can accelerate your next project.

Read the factsheet

MCX A Series Highlights

Discover the advanced features and capabilities of the MCX A Series.

Read the overview

MCX A Series Microcontrollers FAQs

Learn more about NXP's MCX A series portfolio of products.

How does MCX A cut ISR latency and CPU wakeups in 48–240 MHz Arm Cortex M33 designs without moving up to a higher power class?

MCX A’s autonomous peripherals with DMA and trigger matrices offload timers, ADC conversions and serial bursts, letting the core sleep longer and wake predictably. Across MCX A13x/A14x/A15x to A25x/A26x you get deterministic timing and lower jitter for closed-loop control and sensor fusion. MCUXpresso examples speed up bring-up and verification.

What’s the cleanest migration path from ULP Arm Cortex M33 in the 48–100 MHz class to high performance Arm Cortex M33 (48→240 MHz) while keeping the PCB and drivers stable?

MCX A series includes A1 (Essential), A2 (Enhanced) and A3 (Mixed Signal) with pin-compatible packages and a simple power tree. Scale from 48–96 MHz (A13x/A14x/A15x) to 180–240 MHz (A25x/A26x) or to A34x mixed signal while reusing the board, IO map and SDK drivers to reduce respins and DVT time.

For motor control and digital power, how do mainstream MCUs with analog/mixed signal integration change loop bandwidth, phase margin, and BOM?

MCX A34x combines multi-ADC sampling phase-aligned to PWM edges with on-chip op amps and comparators integrated into FlexPWM. This enables faster current and voltage acquisition, lower group delay and cleaner layouts, often eliminating external amps and ADCs. With FreeMASTER and MCUXpresso examples, FOC and digital power tuning and protection bring-up accelerate.

How does MCX A simplify migration from performance tiers while keeping the PCB stable?

MCX A 1/2/3 families share peripheral IP, pinouts and package options to enable firmware and board reuse. This reduces NRE, shortens DVT and supports long-life product roadmaps under NXP’s longevity program.

I need rapid, first pass bring up: what accelerates pin mux, peripheral bring up, and performance validation across A13x/A14x/A15x/A25x/A26x/A34x?

MCUXpresso IDE and SDK unify drivers, RTOS projects and configuration tools for pins, clocks and peripherals. Reference designs and FRDM boards deliver ready-to-run I3C, USB, CAN FD, segment LCD and motor control demos. FreeMASTER enables real-time tuning and telemetry so you can verify latency, throughput, CPU load and current draw on day one.