Renesas Electronics RA8M1 Arm® Cortex®-M85 Microcontrollers

Renesas Electronics RA8M1 Arm® Cortex®-M85 Microcontrollers (MCUs) are high-performance MCUs based on the Arm Cortex-M85 core with helium for compute-intensive DSP and AI/ML tasks. Leading performance of 480MHz with up to 2MB code flash memory, 1MB SRAM, and advanced peripherals that support a broad range of IoT applications. Octal SPI interface with decryption-on-the-fly for highly secure interface to external memory. High integration with 16-bit CEU camera interface, 12-bit A/D converter, 12-bit D/A converter, PWM timers, High-Speed Analog Comparators, Ethernet MAC with DMA, CAN-FD, USB HS/FS, SCI, SPI, I²C/I³C and safety features. Advanced security with TrustZone®, next-gen cryptography, immutable storage for FSBL, secure boot and tamper protection, including DPA/SPA side-channel attack protection.

The Renesas Electronics RA8M1 is built on a highly efficient 40nm process and supports a wide operating voltage range of 1.68V-3.6V. To ease application development, the RA8M1 is supported by the Flexible Software package (FSP), evaluation kits, software development tools, and Cloud solutions.

Features

480MHz Arm Cortex-M85 core with helium
- M-Profile vector extension for AI/ML
- High-performance core featuring Armv8.1m architecture with helium for DSP/ML acceleration
Up to 2MB Flash memory and 1MB SRAM included TCM; 384KB user SRAM and 128KB TCM are ECC-protected
32KB I/D caches (ECC protected), 12KB data Flash
Advanced security with TrustZone, RSIP Cryptographic engine, immutable storage, and tamper protection
Scalable from 100-pin to 224-pin packages
Octal SPI interface with decryption-on-the-fly, Ethernet MAC with DMA, CAN-FD, and USB HS/FS (host and device) connectivity options

CEU camera i/f, 12-bit ADCs, 12-bit DACs, high-speed analog comparators, and 3x sample and hold circuits
SCI (UART, simple SPI, simple I²C), SPI, I²C, I³C
High-performance MCUs at 480MHz for a broad base of compute-intensive IoT applications
High integration for lower costs and simplified design
Octal SPI interface with a secure interface to external memory for storage of code and data
Advanced security for highly secure IoT
Open Arm Ecosystem, easy-to-use Flexible Software Package and comprehensive solutions to enable fast development
S/H enables motor control applications

Applications

Broad-based IoT
Industrial automation
IoT gateways/hubs
Smart home/home automation products
Thermostats

Home appliances (refrigerators, ovens, washing machines)
Security cameras
Building automation (HVAC, access)

Videos

Block Diagram

Resources

Product Brief
Hardware User Guide
Application Note: Injecting Plaintext User Keys

Application Note: Design Guide for Sub-Clock Circuits
Application Note: EK-RA8M1 Example Project Bundle