The Arm® Cortex®-M33 core processor is designed for IoT and embedded applications that require efficient security or digital-signal control. The processor has many optional features including a digital signal processing extension (DSP), TrustZone security for hardware-enforced isolation, memory-protection units (MPUs) and a floating-point unit (FPU).
The Cortex-M33 brings around 20% more performance than the Cortex-M4 and reaches 1.5 DMIPS/MHz and 4.09 CoreMark/MHz.
The Cortex-M33 processor achieves an optimal blend between real-time determinism, energy efficiency, software productivity and system security. This opens the door for many new applications and opportunities across diverse industries.
Arm Cortex-M33 block diagram (source:Arm) The Cortex-M33 benefits from the Armv8-M architecture. This architecture implements programmer models designed for low-latency processing and provides the option to implement a memory protection unit (MPU) based on protected memory system architecture (PMSA). It includes TrustZone technology for system-wide hardware isolation, providing confidentiality to the system.
TrustZone creates a secure, isolated world to provide confidentiality and integrity to the system, protecting your chip from software attacks. It enables the intelligence and connectivity features to be deployed in the sensors, while protecting the data transmitted.
Thanks to TrustZone security on the Cortex-M33 processor, programmers can use a familiar programming model to achieve software isolation and create the security foundations required for modern IoT devices more easily.
The Cortex-M33 includes digital signal processing (DSP), single instruction on multiple data (SIMD) and MAC instructions that help reduce design costs and simplify overall system design, software development and debugging.
The Cortex Microcontroller Software Interface Standard (CMSIS) enables consistent device support and simple software interfaces to Cortex-M processors and their peripherals. This eases software reuse, reduces the learning curve for microcontroller developers, and reduces the time to market of new devices.
Cortex-M33 core is equipped with the essential microcontroller features, including low-latency interrupt handling, integrated sleep modes, debug and trace capabilities, making it the ideal processor for most applications, including industrial, smart metering, wearables, home automation, and medical applications.
Use cases with machine-learning capabilities are expanding and changing how we interact with devices and machines everywhere. The Cortex-M33 processor is scalable and flexible enough to run any type of machine-learning workload.
Wearables with size- and power- constraint must continuously process multiple sensor feeds to maximize responsiveness. The processing power and security foundation of Cortex-M33 allow the intelligence and connectivity features to be deployed in the sensors, while protecting the data transmitted.
ST combines the Arm Cortex-M33 core with its unique proprietary low-power technology and expertise in security to allow developers to address the needs of applications requiring low power, high-performance processing, as well as security.
STM32 Nucleo-64 development board with STM32WBA55CG MCU.
Compliant with the Bluetooth® Low Energy SIG specification v5.4, IEEE 802.15.4-2015 PHY and MAC, supporting Thread®, Matter, and Zigbee®.
Supports ARDUINO® Uno V3 connectivity and ST morpho headers.
Ideal blend of real-time determinism, efficiency and security
