Arm Cortex-M Series Processors

The Cortex-M processor family is optimized for cost and energy-efficient microcontrollers. These processors are found in a variety of applications, including IoT, industrial and everyday consumer devices.

The processor family is based on the M-Profile Architecture that provides low-latency and a highly deterministic operation, for deeply embedded systems. Our latest generation Cortex-M processor is the Cortex-M55, the first built on the Armv8.1-M architecture with Arm Helium technology, a vector processing extension. The Cortex-M55 brings enhanced levels of machine learning and signal processing performance to the next wave of small embedded devices, from wearables to smart speakers and beyond.

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Arm Cortex-M resources

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  • Cortex-M55

    The Arm Cortex-M55 processor is Arm’s most AI-capable Cortex-M processor and the first to feature Arm Helium vector processing technology.

  • Cortex-M35P

    A tamper-resistant Cortex-M processor with optional software isolation using TrustZone for Armv8-M.

  • Cortex-M33

    The Arm Cortex-M33 processor has an ideal blend of real-time determinism, efficiency and security.

  • Cortex-M23

    The Arm Cortex-M23 is the smallest and lowest power microcontroller with TrustZone security.

  • Cortex-M7

    The Arm Cortex-M7 processor is the highest performance member of the energy-efficient Cortex-M processor family.

  • Cortex-M4

    The Arm Cortex-M4 processor implements a good blend of control and performance for mixed-signal devices.

  • Cortex-M3

    The Arm Cortex-M3 processor is the industry-leading 32-bit processor for highly deterministic real-time applications.

  • Cortex-M1

    The Arm Cortex-M1 processor targets FPGA devices. It is available to access instantly with DesignStart FPGA.

  • Cortex-M0+

    The Arm Cortex-M0+ processor is the most energy efficient Arm processor available.

  • Cortex-M0

    The Arm Cortex-M0 processor is the smallest Arm processor available.

Cortex-M comparison table

Download the following PDF datasheet to compare the specifications of Cortex-M processors.

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  • Cortex-M Resources

    List of useful links and resources for developers designing with Cortex-M processors.

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  • Designing a SoC with Cortex-M

    Read this white paper to learn how to design a system-on-chip with Cortex-M processors.

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