Renesas 32-Bit Arm Cortex-M Microcontrollers for IoT Applications

Published  October 9, 2019   0
Renesas 32-Bit Arm Cortex-M Microcontrollers for IoT Applications

Renesas Electronics Corporation, unveiled the Renesas Advanced (RA) Family of 32-bit Arm Cortex-M microcontrollers(MCUs) that can deliver the ultimate combination of optimized performance, security, connectivity, peripheral IP, and easy-to-use Flexible Software Package (FSP) to address the next generation of embedded solutions with the help of  a comprehensive partner ecosystem to deliver an array of software and hardware building blocks that will work out of the box with RA MCUs.This RA family is PSA certified Level 1 and its eco systems helps in accelerating the development of IoT applications along with Safety and HMI (Human Machine Interface).



  • The family has three series, RA2 series (up to- 60MHz), RA4 Series (up to 100MHz) and RA6 Series (up to 200MHz).
  • Comprises of  32 scalable MCUs with Arm Cortex-M4 and Arm Cortex-M23 processor cores.
  • Pin counts of 32-pins to 176-pins, along with 256 KB to 2 MB of code flash memory amd 32 KB to 640 KB SRAM.
  • Ease of connectivity such as USB, CAN and Ethernet.
  • Pin compatibility within the RA family.
  • Provides superior active and standby power.
  • Enhanced with Renesas’ popular HMI capacitive touch technology.


With the combination of secure Crypto Engine IP with NIST CAVP certifications on top of Arm TrustZone for Armv8-M, RA MCUs can provide the customers an ultimate IoT security, tamper detection and reinforcing resistance to side channel attack. Customers can quickly develop a range of product with the flexible software package Amazon FreeRTOS, ThreadX, or other RTOS and middleware solutions. The RA MCUs improves the scalability, compatibility along with acceleration on time to market, and it demonstrates that it is built on sound security principles. It is best for designing Internet of Things (IoT) endpoint and edge devices for industrial and building automation, metering, healthcare, and home appliance applications.


The RA Family FSP provides an open architecture that allows the customers to reuse their legacy code and combine it with other software examples from Renesas and ecosystem partners for the fast implementation of complex functions like connectivity and security. The FSP having Amazon FreeRTOS will be adding the out-of-box support for ThreadX RTOS and middleware on Cortex-M23 and Cortex-M33 MCUs by early 2020 which can offer a premium device to cloud option for developers. These  out-of-box options can be easily replaced and expanded with any other RTOS or middleware whenever it is required.


The RA family will release the duel-core RA8 Series in the near future and will roll out additional MCUs in 2020 with more advanced technologies, unique features and a growing partner ecosystem. The roadmap offers PSA Certified and Trusted Firmware-M (TF-M) API compliant devices, including Cortex-M33 MCUs, low-power Cortex-M23 MCUs, and BLE / IEEE 802.15.4 wireless IoT products.  MCUs with TF-M / PSA certification will give customers the confidence and assurance to quickly deploy secure IoT endpoint and edge devices, and smart factory equipment for Industry 4.0.


The first five RA MCU Groups are available now from Renesas Electronics’ worldwide distributors with prices ranging from $2.50 USD to $7.00 USD in 10,000-unit quantities. For more information on the RA Family, please visit the product page on their official page. :