The MCX E series joins the broader NXP MCX portfolio as its most rugged and safety-focused offering to date. With this launch, NXP now offers the broadest portfolio of 5 V-capable microcontroller units (MCUs) in the industry, offering a consistent development experience from 3 V to 5 V designs. This expansion empowers developers to build resilient systems for a wide range of harsh edge conditions.
Edge environments are becoming more rugged, and that means microcontrollers must become more resilient. That is why NXP is expanding our scalable MCX portfolio with the launch of the MCX E series—a new line of Arm®Cortex®-M4F-based MCUs designed for reliable control in the most electrically and thermally demanding environments. The first family in this series—the MCX E24—delivers the performance, safety and robustness needed for industrial automation, safe appliances and energy control. With the broader MCX E series, NXP enables long-term reliability and scalability across a wide range of harsh edge applications.
As edge computing grows is popularity, designers are deploying it in increasingly varied and demanding environments. With that, developers face numerous challenges.
As a leading supplier of MCUs, NXP understands the evolving demands of edge computing. The MCX E series was purpose-built to address these challenges head-on. With a confluence of robust 5 V operation, industrial-grade temperature ratings, built-in safety diagnostics and secure provisioning, the MCX series allows developers to build resilient and secure systems without compromising on performance or scalability.
Start developing today with the MCX E Series using the FRDM Development Platform. Explore our FRDM board offering.
Building on the foundation of the MCX E series, the MCX E24 family combines enhanced noise immunity, high-precision mixed-signal integration, functional safety readiness and modern embedded security—all within a scalable 5 V-capable MCU platform. Whether you're developing smart HVAC systems or industrial robots, the MCX E24 is designed to be a trusted control node at the edge, delivering reliable performance in demanding environments.
Under the hood of the MCX E24 is a 112 MHz Arm®Cortex®-M4 processor with floating-point and digital signal processing (DSP) extensions, supported by up to 2 MB of Flash and 256 kB of error-correcting codes (ECC)-protected static random access memory (SRAM), plus Electrically Erasable Programmable Read-Only Memory (EEPROM) emulation. The robust memory architecture is supported by real-time performance features, including 8 FlexTimer modules for pulse-width modulation (PWM) generation and motor control, dual 12-bit analog-to-digital converter (ADC) that sample at 1 Msps and analog comparators with integrated digital-to-analog converter (DAC).
These components form a tightly integrated control system for closed-loop applications that require a deterministic response. When paired with NXP’s Real-Time Control Embedded Software Libraries (RTCESL), developers can implement advanced control techniques—such as Field-Oriented Control (FOC)—with minimal CPU loading. Specially, resulting in less than 21% at 10kHz update rates, according to in-house benchmarks using the FRDM-MCXE247 development platform.
The MCX E24 family was designed from the ground up for harsh electrical environments. It supports full operation across a 2.7 V to 5.5 V range for direct interface with 5 V sensors and actuators to enhance noise immunity in industrial installations. Devices are rated from -40 °C to 125 °C, support 24/7 uptime and are fully qualified for a 10-year life cycle.
In many applications, safety is required to avoid accidents related to misuse, failure or damage. For example, in devices with moving parts, electrical systems must be protected or designed to fail in a predictable manner. For such safety-conscious applications, MCX E24 provides a comprehensive functional safety architecture built for International Electrotechnical Commission (IEC) 61508 systems up to safety integrity level 2 (SIL 2). Hardware diagnostics include program flow monitoring, clock and power supervision, Flash/SRAM/register ECC, watchdog timers, cyclic redundancy check (CRC) engines and fault logging. These features are further complemented by NXP’s SafeAssure documentation suite, with precertified libraries for IEC 60730 Class B appliance compliance and software frameworks for IEC 61508.
Security is increasingly an edge requirement, and the MCX E24 addresses this with built-in support for NXP EdgeLock Essentials. Each device includes a secure bootloader, debug authentication and a unique, immutable device identity provisioned during manufacturing. The MCX E24 also supports a preflashed flash programmer, which allows flashing firmware securely over a serial interface in manufacturing without the need for a debug interface or a secure environment.
Meanwhile, the integrated EdgeLock Accelerator (CSEc) offloads symmetric cryptography and supports Advanced Encryption Standard (AES)-Cipher Block Chaining (CBC), Electronic Codebook (ECB) and Cipher-based Message Authentication Code (CMAC) modes for secure key storage and data integrity. With these features, designers can rest assured that MCX E devices are trustworthy from first boot through end-of-life.
As part of the larger MCX Microcontroller portfolio, the MCX E series benefits from the unified MCUXpresso Developer Experience. This ecosystem includes:
Whether your workflow is Graphical User Interface (GUI)-based or Continuous Integration/Continuous Deployment (CI/CD) integrated, the toolchain adapts to your development style.
To accelerate application development, NXP is also releasing the FRDM-MCXE247 development board. As a compact, low-cost hardware platform, FRDM-MCXE247 features:
Out of the box, developers can explore motor control, industrial networking and secure boot use cases using software from the Application Code Hub (ACH) and GitHub, as well as Application Notes on the NXP website. To immediately see the precision of the MCX E series, developers can deploy ready-made sensorless Permanent Magnet Synchronous Motor (PMSM) demos that come pre-integrated with the Real-Time Control Embedded Software Libraries (RTCESL), which is a group of algorithms that can be easily incorporated into real-time control applications and used in our motor control reference designs.
The MCX E series brings industrial robustness, embedded safety and secure connectivity to the MCX MCU portfolio. Complementing other series that are for everything from mainstream performance to ultra low-power and wireless connectivity, the MCX E series empowers embedded designers to select the right controller for every node across their edge architecture—without sacrificing software reuse or development efficiency.
And it doesn't stop here. Be on the lookout for our upcoming MCX E31, arriving later this year. With much more to come, we’re committed to pushing the boundaries of what’s possible by delivering the industry's most advanced and complete MCU solutions so engineers can lead the future of innovation.
Ready to explore the power of the MCX E series? Get hands-on with the FRDM-MCXE247 development board and start building today.
Raphael A is a technical marketer managing MCX products for Industrial Edge at NXP Semiconductors. He has held previous roles in applications engineering and marketing in the wireless and semiconductor industry and has a Master's Degree in Electrical Engineering from Supelec and Georgia Institute of Technology.
