Renesas Introduces Secure RA MCU Series for Industrial IoT and Edge Applications

Renesas Electronics Corp. has introduced its Renesas Advanced (RA) family of 32‑bit Arm Cortex‑M microcontrollers (MCUs)—a new line engineered for secure IoT endpoint and edge device development. The RA MCUs combine industry‑leading security, optimized connectivity, rich peripheral IP, and a user‑friendly Flexible Software Package (FSP) that streamlines embedded solution design. Complementing the hardware is a robust partner ecosystem that supplies compatible software and hardware building blocks.

The RA MCUs target a wide spectrum of applications, from industrial and building automation to metering, healthcare, and smart home appliances. The family holds PSA Certified Level 1 status and is organized into the RA2 Series (up to 60 MHz), RA4 Series (up to 100 MHz), RA6 Series (up to 200 MHz), and a forthcoming dual‑core RA8 Series.

The initial five RA MCU groups encompass 32 scalable devices that feature Arm Cortex‑M4 and Cortex‑M23 cores. Pin counts range from 32 to 176 pins, code flash memory spans 256 KB to 2 MB, and SRAM scales from 32 KB to 640 KB. Connectivity options include USB, CAN, and Ethernet, giving designers the flexibility to migrate seamlessly within the RA family.

Security is built into the hardware: the RA MCUs house Renesas’ Secure Crypto Engine IP—certified by NIST CAVP—Arm TrustZone for Armv8‑M, and tamper‑detection circuitry. Additional capabilities such as Renesas’ HMI capacitive touch technology enhance user interaction.

Developers can kick‑start projects with the FSP, which supports Amazon FreeRTOS, ThreadX, and other RTOS/middleware stacks. ThreadX RTOS and middleware are slated for release in early 2020. The open architecture lets teams reuse legacy code and integrate Renesas and ecosystem examples, accelerating the implementation of complex functions such as connectivity and security.

Renesas’ roadmap for 2020 expands the RA lineup with PSA‑Certified and Trusted Firmware‑M (TF‑M) API‑compliant devices, including Cortex‑M33 MCUs, low‑power Cortex‑M23 variants, and BLE/IEEE 802.15.4 wireless IoT solutions.

The first five RA MCU groups are now available through Renesas’ distributors. Unit prices range from $2.50 to $7.00 for orders of 10 000 pieces. The comprehensive development environment includes on‑chip debugging, IDEs, compilers, support tools, evaluation kits, design files, schematics, PCB layouts, and BOMs.