Renesas Electronics Corporation has introduced the RA8M2 and RA8D2 microcontroller (MCU) groups. Based on a 1 GHz Arm Cortex-M85 processor with an optional 250 MHz Arm Cortex-M33 processor, the new MCUs are the latest Renesas offerings to deliver an unmatched 7300 Coremarks of raw compute performance, the industry benchmark for MCUs.

The optional Cortex-M33 processor enables efficient system partitioning and task segregation.

Both RA8D2 and RA8M2 devices are ultra-high performance MCUs as part of the second generation of the RA8 Series – the RA8M2 are general-purpose devices, and the RA8D2 MCUs are packed with a variety of high-end graphics peripherals.

They are built on the same high-speed, low-power 22-nm ULL process used for the RA8P1 and RA8T2 devices introduced earlier this year. The devices include single and dual core options, and a specialized feature set to address the needs of a broad base of compute intensive applications. They take advantage of the high performance of the Arm Cortex-M85 processor and Arm’s Helium™ technology to offer a significant performance boost for digital signal processor (DSP) and machine learning (ML) implementations.

The RA8M2 and RA8D2 devices offer embedded MRAM that has several advantages over Flash technology – high endurance & data retention, faster writes, no erase needed, and byte addressable with lower leakage and manufacturing costs. SIP options with 4 or 8 MB of external flash in a single package are also available for more demanding applications. Both the RA8M2 and RA8D2 MCUs include Gigabit Ethernet interfaces and a 2-port TSN switch to address industrial networking use cases.

Both of the MCU Groups provide a combination of the high performance of the Cortex-M85 core, together with large memory and a rich peripheral set, making them particularly suitable for a wide range of IoT and industrial use cases. The lower power CM33 core can act as a housekeeping MCU, executing system tasks while the high performance CM85 core stays in sleep mode, to be woken up only as needed for high compute tasks, thus lowering the system power consumption.

“The RA8M2 and RA8D2 complete Renesas’ new generation of RA8 MCUs, purpose-built for the high-performance microcontroller market,” said Daryl Khoo, Vice President of the Embedded Processing Marketing Division at Renesas. “This portfolio empowers Renesas to deliver scalable, secure and AI-enabled embedded processing solutions that accelerate customer innovation and time-to-market across a broad spectrum of industrial, IoT and select automotive applications. Renesas’ commitment to innovation is reflected in the RA8 Series’ ability to address complex processing requirements while maintaining lower power consumption and minimizing total cost of ownership to future-proof customers’ designs.”

RA8D2 Feature Set Optimized for Graphics and HMI Applications

The RA8D2 MCUs provide a plethora of features and functions for graphics and HMI applications:

• High resolution Graphics LCD Controller supports up to 1280×800 displays with both parallel RGB and 2-lane MIPI DSI interfaces
• Two-Dimensional Drawing Engine offloads the graphics rendering tasks from the CPU and supports graphics primitives
• Multiple camera interface options enable camera and vision AI applications,

• 16-bit camera interface (CEU) with support for image data fetch, processing and format conversion
• MIPI CSI-2 interface offers a low pin-count interface with 2 lanes, each up to 720Mbps
• A VIN module performs vertical and horizontal scaling and format and color space conversions of YUV and RGB data inputs received from the MIPI CSI-2 interface

• Audio interfaces such as I2S and PDM support digital microphone inputs for audio and voice AI applications
• Comprehensive graphics solution with industry-leading embedded graphics GUI packages from SEGGER emWin and Microsoft GUIX, integrated into Renesas’ FSP
• Software JPEG decoder optimized for Helium, available with both emWin and GUIX solutions, allows decode of JPEG images with up to 27fps end-to-end graphics performance with Helium acceleration
• Multiple graphics ecosystem partners such as Embedded Wizard, Envox, LVGL and SquareLine Studio are offering solutions that employ RA8D2 using Helium to accelerate graphics functions and JPEG decoding

Key Features of the RA8M2 and RA8D2 Group MCUs

• Core: 1 GHz Arm Cortex-M85 with Helium; Optional 250 MHz Arm Cortex-M33
• Memory: Integrated 1MB high-speed MRAM and 2MB SRAM (including 256KB TCM for the Cortex-M85 and 128KB TCM for the M33). 4MB and 8MB SIP devices coming soon.
• Analog Peripherals: Two 16-bit ADC with 23 analog channels, two 3-channel S/H, 2-channel 12-bit DAC, 4-channel high-speed comparators
• Communications Peripherals: Dual Gigabit Ethernet MAC with DMA, USB2.0 FS Host/Device/OTG, CAN2.0 (1Mbps)/CAN FD (8Mbps), I3C (12.5Mbps), I²C (1Mbps), SPI, SCI, Octal serial peripheral I/F
• Advanced Security: RSIP-E50D Cryptographic engine, robust secure boot with FSBL in immutable storage on-chip, secure debug, secure factory programming, DLM support, tamper protection, DPA/SPA protection

23 October 2025