The MCX E series stands out in the industry for its exceptionally broad portfolio of 5 V microcontroller units (MCUs), bringing scalable performance, built-in functional safety and long-life reliability to industrial and appliance designs.
The expectations for modern industrial and appliance systems are higher than ever. Motors must operate reliably throughout the life cycle, power conversion systems must withstand harsh operating conditions, and connected devices require protection against cyber threats and physical failures. Achieving this balance of performance, dependability and safety is far from simple.
The new MCX E32 family of microcontrollers balances this equation. This portfolio of 5 V MCUs combines built-in hardware safety mechanisms, advanced security and extended reliability to help engineers slash time and effort needed for certification without compromising performance and reliability.
Development teams face a gamut of recurring obstacles when building safety-critical or industrial systems. Certification can consume months of engineering effort, while demonstrating system reliability across extreme operating ranges can prove difficult. As a result, many designs still require multiple MCUs to meet both performance and functional safety.
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The MCX E32 family provides a hardware-level approach to developing high-performance systems with functional safety and long-term reliability. With ongoing TÜV SÜD SIL 2 hardware integrity certification, a structured path toward systematic capability 3 (SC3) and integrated EdgeLock® Secure Enclave, the MCX E32 reduces the burden associated with safety and security compliance. Combined with an industrial qualification up to 135 °C and a 10-year lifetime profile, this translates into consistent operation that minimizes downtime and reduces the risk of unexpected field failures.
MCX E32 Key Features at a Glance:
Modern embedded systems demand high performance, but also proven safety, long-term reliability and streamlined design. The MCX E32 family addresses these objectives head-on, offering hardware-level solutions that simplify certification, strengthen system resilience and reduce the need for multiple MCUs. The following sections outline how the MCX E32 portfolio helps solve the most persistent pain points in industrial and appliance development.
Rather than rely only on certified libraries, the MCX E32 integrates safety into the silicon. Program flow monitoring, redundant watchdogs and error reporting provide a hardware-level safety baseline that accelerates certification and reduces the cost of demonstrating IEC 61508 requirements at the system level.
One aspect of reliability is temperature tolerance, but that’s not the whole story. Engineers also need mechanisms that safeguard against data corruption and unpredictable faults. That’s why MCX E32 includes ECC on flash memory and SRAM, clock and supply monitoring and fault collection with a programmable system response Together, these capabilities help preserve data integrity and predictable system behavior under demanding operating conditions, supporting safe equipment operation and reducing the risk of unplanned downtime.
The MCX E32 family builds on the performance, functional safety, security and industrial reliability foundation established by the MCX E31, boosting performance for compute-intensive applications with its dual-core architecture. It features two Arm Cortex-M7 cores, each operating at up to 160 MHz while incorporating FPU/DSP capabilities and instruction and data caches.
The two processing domains give developers greater flexibility to distribute demanding workloads across the two cores, including networking, motor control and other real-time functions. Developers can also separate safety and application functions or distribute different safety functions across the cores, such as running a safety network stack while cross-monitoring another MCU for SIL3 systems. The MCX E32 goes even further by directly integrating a dedicated motor control and power conversion subsystem, Ethernet TSN and up to six CAN FD interfaces. By combining high-performance compute, mixed-signal control and robust networking, the MCX E32 enables consolidated system architectures that would otherwise require multiple devices to achieve.
Supporting resources include up to 4 MB of program flash memory, 128 kB of data flash memory and 512 kB of SRAM with ECC, along with safety-oriented hardware such as the Fault Collection and Control Unit (FCCU), Self-Test Control Unit (STCU), clock monitoring and error-management functions. An EdgeLock Secure Enclave with a secure core and cryptographic acceleration further strengthens the platform for connected industrial and appliance designs.
The MCX E32 family isn’t just another MCU—it’s the engine powering the next generation of safer, smarter and more connected industrial systems. The MCX E32 can help developers push boundaries in the following areas:
From high-speed conveyor diverters to precision robotics and drones, MCX E32’s 160 MHz Arm Cortex-M7 core and integrated motor control subsystem enable complex motion, real-time safety and advanced networking, all on a single chip. With support for six CAN FD buses and Ethernet TSN, you can coordinate a factory floor with maximum reliability and minimal downtime.
The MCX E32 supports applications ranging from home and industrial energy storage to distributed battery systems. Built-in power conversion accelerators and safety features help designs operate reliably under demanding conditions, support increased uptime and streamline the path toward safety certification. Safe Appliances and Tools
Imagine HVAC, heat pumps, boilers and power tools that are built to last. With extended temperature range and SIL 2 hardware integrity, the MCX E32 delivers years of reliable, secure operation, even in extreme environments.
From medical pumps and ventilators to public transit controls, the MCX E32 is engineered to meet internationally recognized safety standards (IEC60601, EN50128 and IEC61511). This foundation supports dependable operation in applications where functional safety is essential.
While many MCUs approach functional safety by layering certified software libraries on top of general-purpose silicon, this approach tends to add to the system's complexity and places more of the certification burden on the design team. Meanwhile, safety is built into the MCX E32’s hardware design, with TÜV-certified SIL2 HW safety integrity and systematic capability SC3.
Moreover, its dual-core architecture enables developers to build a SIL2 system using a single MCX E32, whereas a typical quality-managed MCU requires a 1oo2 implementation with two channels to achieve SIL2. This provides engineers with a stronger foundation for compliance while reducing the need for external safety mechanisms. To further support safety-critical applications, MCX E32 includes a comprehensive safety enablement suite including:
Other solutions may depend on less commonly adopted processor architectures which can limit ecosystem support and long-term scalability. The MCX E32instead is built on the widely supported Arm Cortex-M7, culling barriers to entry. As a result, MCX E32 is easier to integrate, better supported by toolchains and more adaptable for future designs.
To move engineers from concept to deployment sooner, the MCX E32 family is backed by the FRDM-MCXE32B development board. This solution offers easy access to the device’s peripherals and subsystems through a modular, user-friendly platform. Features include:
Paired with the MCUXpresso Software and Tools, this solution provides optimized drivers, middleware along with libraries undergoing certification that help simplify bring-up and shorten development cycles. And to help streamline parts of the development process, the Application Code Hub (ACH) provides access to more than 140 ready-to-use examples and tutorials, including safety and connectivity use cases tailored to the MCX E32.
Beyond traditional enablement tools, the MCX E32 supports safety application development through:
To recap, the MCX E32 family delivers a unique combination of:
Whether you’re designing industrial automation, energy systems or advanced appliances, the MCX E32 family helps you accelerate certification, simplify system design and maximize long-term performance.
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.
