Renesas Launches Security-Focused RA6M4 Microcontroller Range at Speeds of Up to 200MHz

Built around the Arm Cortex-M33, the new RA6M4 parts claim to balance performance and energy-use with high levels of security.

Renesas is targeting security-conscious deployments with its new RA6M4 microcontrollers. (📷: Renesas)

Renesas Electronics has announced the release of nine new microcontrollers, based on the Arm Cortex-M33, with a view to offering enhanced security for the Internet of Things (IoT) segment.

"Delivering on our promise at the launch of the RA MCU Family last October, I’m proud to announce its expansion with the RA6M4 MCUs," says Roger Wendelken, senior vice president for Renesas’ IoT and Infrastructure business unit. "They 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."

"We intend to delight our customers who appreciate the higher level of security and IoT connectivity that the RA6M4 MCU Group brings with the confidence and ease of use that only comes by designing with Arm and securing with Arm TrustZone technology.”

"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," adds Dipti Vachani, senior vice president and general manager for the 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 40nm process node, the RA6M4 family offers speeds of up to 200MHz, an Ethernet controller with DMA, capacitive touch-sensing, USB 2.0 Full Speed and CAN connectivity, QuadSPI and OctaSPI interface options, SCI, SPI, and I2C, plus SDHI and SSI for audio, plus up to 1MB of flash memory and 256kB of RAM — limited to 64kB with ECC. The power draw, meanwhile, is claimed to be as low as 99uA/MHz, measured while running the CoreMark benchmark from flash memory.

The parts are available in-channel now, with more information available on Renesas' website.

Gareth Halfacree
Freelance journalist, technical author, hacker, tinkerer, erstwhile sysadmin. For hire:
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