Renesas announces Arm Cortex-M33-based RA6M4 MCU group

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Renesas has announced the expansion of its RA6 Series microcontrollers (MCUs) with nine new RA6M4 Group MCUs, increasing the RA Family to 42 MCUs.

These 32-bit MCUs boost operating performance up to 200 MHz using the Arm Cortex-M33 core based on Arm v8-M architecture with Arm TrustZone technology.

The RA6M4 MCUs deliver optimised performance together with security and connectivity that is supported by the Flexible Software Package (FSP). In addition, the Renesas partner ecosystem offers software and hardware building blocks that work out-of-the-box with RA6M4 MCUs and FSP to address Industrial 4.0, building automation, metering, healthcare, and home appliance applications.

With strong security, improved connectivity, large embedded RAM with parity/ECC, low power consumption, and leverage of the Arm developer and tools ecosystem, the RA6M4 MCUs will help to speed the development of intelligent IoT edge and endpoint devices, according to Renesas.

Renesas’ enhanced Secure Crypto Engine also delivers security solutions, incorporating multiple symmetric and asymmetric cryptography accelerators, advanced key management, security lifecycle management, tamper detection, and increased resistance to side-channel attack, in addition to Arm TrustZone technology. These integrated security features make the RA6M4 MCUs suitable for connected applications, and are intended to enable customers to lower BOM cost and secure element functionality in all their IoT designs.

“The RA6M4 MCUs offer customers best-in-class performance and security enhancements built with Arm Cortex-M33 cores that clearly deliver more memory, memory interface expansion, better power efficiency and wake-up time, and more connectivity options,” said Roger Wendelken, Senior Vice President of Renesas’ IoT and Infrastructure Business Unit.

“IoT edge and endpoint technologies are opening up new opportunities for developers to build smaller devices, with greater privacy and less dependence on the cloud,” said Dipti Vachani, senior vice president and general manager, Automotive and IoT Line of Business at Arm. “The RA6M4 MCUs move intelligence closer to the data, with Arm TrustZone technology built in to ensure privacy and data integrity, helping securely accelerate the growth of IoT.”

Built on a highly efficient 40nm process, the RA6M4 MCUs are able to drive power consumption down to 99uA/MHz while running the CoreMark algorithm from flash. The MCUs also support fast wakeup times of 30 µs from standby using a high-performance on-chip oscillator. Their high integration up to 1MB code flash memory and 256 KB of SRAM (64 KB with ECC) also make the RA6M4 MCUs well suited for low power and safety applications.