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Renesas RA4M2 Microcontrollers (MCUs)

Based on Arm Cortex-M33 core and offering advanced security features for industrial and IoT applications

Renesas has introduced the RA4M2 Microcontroller (MCU) family, adding 12 new products in the Renesas RA Family of microcontrollers. They offer a combination of very low power consumption, high performance, and enhanced security capabilities. The new RA4M2 MCUs’ features make them ideal solutions for industrial systems and IoT edge devices.

The highly power-efficient RA4M2 Group MCUs draw an operating current of only 80µA/MHz in active mode, and a low stand-by current of 0.7mA. Low-power operation does not prevent these new devices from providing a fast response: wake-up time from stand-by is just 30µs, and maximum operating frequency is 100MHz.

The RA4M2 MCUs take advantage of the specialist security capabilities of the Arm® Cortex®-M33 core, including the TrustZone® technology for secure partitioning of operations involving trusted hardware peripherals. This technology is augmented in the RA4M2 MCUs by Renesas’ Secure Crypto Engine, which incorporates multiple symmetric and asymmetric cryptography accelerators, advanced key management, security lifecycle management, resistance to power analysis, and tamper detection.

This rich suite of advanced security features enables customers to realize the functionality of a secure element, providing an integrated solution for the requirements of IoT edge devices.

The RA4M2 Group is supported by the easy-to-use Flexible Software Package (FSP), which includes a best-in-class driver for hardware abstraction layers. The FSP uses a GUI to simplify and accelerate the development process, while also making it easy for customers to make the transition from an 8- or 16-bit MCU design.

Demonstration applications such as a smart IoT air purifier and an industrial CAN sensor network can be found here.

RA4M2 MCU Features

  • Scalable package options:
    • LQFP packages, 48 to 100 pins
    • 48-pin QFN
  • Up to 512kbytes of Flash memory
  • 128kbytes of SRAM
  • Capacitive touch-sensing unit
  • USB 2.0 Full Speed interface
  • 12-bit ADC
  • Two 12-bit DACs
  • Serial communications interface

RA4M2 MCU Applications

  • IoT edge devices
  • Fire detection systems
  • Intruder detection systems
  • Alarm panel controls
  • Metering
  • Robotics
  • Door openers
  • Sewing machines
  • Vending machines
  • Uninterruptible power supplies
  • Heating, air conditioning and boiler controls


Evaluation Kit

Board part number: EK-RA4M2

The EK-RA4M2 evaluation kit enables users to evaluate the features of the RA4M2 MCU Group and develop embedded systems applications using Renesas' Flexible Software Package and e2 studio development environment.


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Renesas RA Series Microcontrollers