Overview
Description
The RA8M1 MCU Group features the industry’s first 32-bit microcontrollers (MCU) based on the Arm® Cortex®-M85 (CM85) core, delivering breakthrough performance of over 3000 CoreMark points at 480 MHz, with fully deterministic, low latency, real-time operation that enables customers’ most demanding application needs. These are general-purpose MCU devices and address diverse high-performance and compute-intensive applications in Industrial Automation, Home Appliances, Smart Home, Consumer, Building/Home Automation and Medical/Healthcare market segments.
The RA8M1 MCUs integrate the high-performance CM85 core with large memory, multiple external interfaces, and a rich peripheral set optimized to address diverse application requirements, and are available in packages from 100 pins to 224 pins, to serve the needs of a broad range of high-performance applications. Secure Element-like functionality is built-in with advanced cryptographic Security IP, immutable storage, and tamper protection, for truly secure IoT.
The RA8M1 MCUs are fully supported by the Flexible Software Package and a comprehensive set of hardware and software development tools.
Features
- 480MHz Arm Cortex-M85 with Helium™ MVE
- 1MB - 2MB Flash memory and 1MB of SRAM including TCM
- 32KB I/D Caches and 12KB Data Flash
- External memory interfaces (CS/SDRAM)
- ARMv8-M TrustZone® Security
- Renesas Secure IP (RSIP-E51A)
- On-chip immutable ROM for First Stage Bootloader
- Scalable from 100-pin to 224-pin packages
- 32-bit & 16-bit Timers, 32-bit Ultra-Low-Power Timer
- 12-bit ADC and 12-bit DAC
- High-Speed Analog Comparator
- Ethernet controller with DMA
- USB 2.0 High-Speed and Full-Speed
- 2ch of CAN FD
- xSPI compliant Octal SPI with XIP & DOTF
- SCI (UART, Simple SPI, Simple I2C)
- SPI/ I2C/I3C multi-master interface
- Capture Engine Unit, SDHI, SSI
Comparison
Applications
Design & Development
Software & Tools
Sample Code
Boards & Kits
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

Support
Support Communities
Support Communities
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Unable to Flash 280KB HEX File on EK-RA8M1 – Fails with 'Failed to Erase Sectors' Error, Smaller size hex files Work Fine
I am facing an issue while flashing a hex file of around 280KB to my Renesas EK-RA8M1 board. When the file size was around 70KB, I was able to flash it without any problems. However, with the larger file, the flashing process fails, and I get the following error ...
Mar 28, 2025 -
How to implement USB composite device with two PCDC on RA8M1
Hi all, I'm working on a design it has to implement two PCDC on one USB port to make it works. Additionally, the project uses ThreadX.However, it seems that the FSP not support this configuration. Could anyone guide me how to achieve this? Provide an example project is ...
Jul 6, 2025 -
i want to build tcp client listner for Renesas RA8M1
Hi , We want guidance to build the TCP client and listener freerrtos or azure rtos sample which can work through ethernet Regards, Jeyakumar R
Oct 13, 2024
FAQs
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What is the difference between Voice Kit RA6/4/2 and VK-RA8M1?
VUI software solution perspective, the VK-RA8M1 can run either VCR (Voice Command Recognition) or NLU (Natural Language Understanding) which modeling tool are both provided by Cyberon. On the other hand, Voice Kit RA6/4/2 series supports VCR (Voice Command Recognition) from Cyberon. For hardware functionality difference ...
Jul 26, 2024 -
Where can I purchase VK-RA8M1?
Please visit below link where you can proceed kit purchase. You can also check stock status from our Distributors. https://www.renesas.com/us/en/products/microcontrollers-microprocessors/ra-cortex-m-mcus/vk-ra8m1-ra8m1-voice-user-reference-kit
Jul 26, 2024 -
RA Family: How to generate self-signed x509 certificate using MbedTLS stack
... parse the certificate. Example of PEM certificates decode via online tool – Details of sample project: Board: EK-RA8M1 FSP: v5.5.0 or later IDE: e2studio - 2024-07 (24.7.0) or later Compiler: GCC - 12.2.1.arm-12-mpacbti-34 or later Suitable Products RA8M1, RA8D1, RA8T1 Japanese
Feb 4, 2025
Videos & Training
Watch an unboxing and overview of the RA8 series evaluation kits, including several example projects. The RA8 series kits can help you quickly develop proofs of concept for resource-constrained AIoT edge and endpoint devices.
Events & Webinars
News & Blog Posts
News
Oct 31, 2023
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Blog Post
Oct 13, 2022
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Blog Post
Jan 28, 2022
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