Overview
Description
The Renesas RA6M4 group of microcontrollers (MCUs) uses the high-performance Arm® Cortex®-M33 core with TrustZone®. In concert with the Secure Crypto Engine it offers Secure Element functionality. The integrated Ethernet MAC with individual DMA ensures high data throughput. The RA6M4 is built on a highly efficient 40nm process and is supported by an open and flexible ecosystem concept—the Flexible Software Package (FSP), built on FreeRTOS—and is expandable to use other RTOSes and middleware. The RA6M4 is suitable for IoT applications requiring Ethernet, future proof security, large embedded RAM, and low active power consumption down to 99µA/MHz running the CoreMark® algorithm from Flash.
Features
- 200MHz Arm Cortex-M33 with TrustZone
- Secure element functionality
- 512kB - 1MB Flash memory and 192kB SRAM with Parity and 64kB SRAM with ECC
- Dual-bank-Flash with background operation
- 8kB Data Flash to store data as in EEPROM
- Scalable from 64-pin to 144-pin packages
- Ethernet controller with DMA
- Capacitive touch sensing unit
- USB 2.0 Full Speed
- CAN 2.0B
- QuadSPI and OctaSPI
- SCI (UART, Simple SPI, Simple I2C)
- SPI/ I2C multimaster interface
- SDHI and MMC
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
Renesas Academy
Support Communities
-
RA6M4
Hi everyone, I have a custom RA6M4 board that's being undetected via USB when connected to a Windows 10 laptop which means i cant flash the board. I have tried with flash programmer but it stays undetected under COM Port and cant connect. What could i be doing wrong?
Jul 20, 2023 -
RA6M4
Hello, is there a tutorial for RA6M4 using KSZ8041 module to achieve Ethernet?
Dec 13, 2021 -
RA6M4
For CAN exception handling, whether there is any exception or error that CAN not be automatically recovered by CAN controller requires the client to reinitialize and configure CAN module. For example,The product operation process does not shut down the receive interrupt, but CAN automatically shut down.
Apr 17, 2021
FAQs
-
MCUboot for RA6M4 in FSP 3.2.0 Errata
Last Updated: 11/11/2021 MCUboot in FSP 3.2.0 generates a build error similar to: rm_psa_crypto\inc/ecp_alt.h:31:10: fatal error: hw_sce_ecc_private.h: No such file or directory This error is generated because some header files are ...
Nov 11, 2021 -
Using Block Protection Settings to Secure Code in RA6M4 MCUs with FSP
Last Updated:03/15/2021 On RA6M4 MCUs Block Protection Settings (BPS) can be used to secure flash memory blocks from being programmed or erased. This is useful when code, such as a bootloader, needs to be made immutable, or unchangeable, once deployed in the field. The RA6M4 ...
Mar 15, 2021 -
RA6M4/RA6M5: CPU Performance Difference when C-/S-caches are on/off
For Renesas Cortex-M33 RA6M4 and RA6M5 MCUs, there are system level caches for both instruction cache and data cache, which help to improve instruction and data fetch speed. The data cache is named S-Cache in the Renesas RA6M4/RA6M5 MCU Hardware User’s Manual, and it’s ...
Dec 18, 2023
Videos & Training
Kickstart IoT and embedded systems development using Renesas EK-RA6M5, EK-RA6M4, and EK-RA6M3 evaluation kits for the RA6 MCU series. This video provides an overview of the kit architecture, key features, a quick start example project, and many useful resources to begin innovating quickly with Renesas RA MCUs.
Additional Videos
Events & Webinars
News & Blog Posts
Blog Post
Jan 28, 2022
|
Blog Post
Jan 28, 2022
|
Blog Post
Jan 28, 2022
|
Blog Post
Nov 18, 2021
|
Blog Post
Nov 11, 2021
|
Blog Post
Oct 13, 2020
|
News
Oct 6, 2020
|
Blog Post
Oct 6, 2020
|