Renesas RA Family of 32-bit MCUs with Arm® Cortex®-M Core

RA Family of Arm-based MCUs

Delivering the Promise of a Secure, Connected and Intelligent IoT

The flexible Renesas Advanced (RA) 32-bit MCUs are industry leading 32-bit MCUs with the Arm® Cortex®-M33, -M23 and -M4 processor cores and PSA certification. RA delivers key advantages compared to competitive Arm Cortex-M MCUs by providing stronger embedded security, superior CoreMark® performance, and ultra-low power operation. PSA certification provides customers the confidence and assurance to quickly deploy secure IoT endpoint and edge devices, and smart factory equipment for Industry 4.0.

Selection Guide

Renesas RA Family of 32-bit MCUs with Arm® Cortex®-M Core

32-bit Arm® Cortex®-M Core MCU

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Renesas RA Partner Ecosystem Overview

Renesas is enabling a comprehensive partner ecosystem to deliver an array of software & hardware building blocks that will work out-of-the-box with Renesas RA Family MCUs. The Renesas RA ecosystem will help accelerate development of IoT applications, including core technologies such as security, safety, connectivity, HMI among others.

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Renesas RA Ecosystem

Featured Solutions

Family Lineup

RA Family of Arm-based MCUs

RA2

The RA2 Series is the RA Family's entry-level 32-bit MCU, offering excellent cost performance and ultra-low power consumption. It delivers up to 48MHz of CPU performance using an Arm® Cortex®-M23 core with up to 256kB of embedded flash memory and a wide single voltage supply range from 1.6V to 5.5V. With cutting-edge peripherals like capacitive touch, the RA2 Series is ideal for system control or user interface applications such as in healthcare devices, home appliances, office equipment, and measuring equipment.

Group	Flash (KB)	RAM (KB)	Pin	Voltage (V)	Max Freq (MHz)	Features
RA2A1	256	32	32-64	1.6-5.5	48	Five variants of Arm Cortex-M23 core 48 MHz MCUs with 32-64 pin packages, 256 KB flash memory and 32 KB SRAM, including capacitive touch sensing, USB Full-Speed, 24-bit A/D converter, 16-bit A/D converter, security and safety features

RA4

The RA4 Series bridges the needs for reasonable low power with the demand for connectivity and performance. These MCUs deliver up to 48MHz of CPU performance using an ArmⓇ CortexⓇ-M4 core with up to 512kB of embedded flash memory. The series offers a wide set of peripherals, including USB, CAN, ADC, Bluetooth Low Energie 5.0, capacitive touch, a segment LCD controller, and additional security IP integration, making it suitable for IoT, industrial equipment, home appliances, office equipment, healthcare products, and meters.

Group	Flash (KB)	RAM (KB)	Pin	Voltage (V)	Max Freq (MHz)	Features
RA4M1	256	32	40-100	1.6-5.5	48	Seven variants of Arm Cortex-M4 core 48 MHz MCUs with 40-100 pin packages, 256 KB flash memory and 32 KB SRAM, including segment LCD controller, capacitive touch sensing, USB Full-Speed, 14-bit A/D converter, security and safety features
RA4W1	512	96	56	1.8-3.6	48	Bluetooth Low Energy 5.0 application controller with Arm Cortex-M4 core at 48 MHz MCUs with small 56 pin QFN packages, 512 KB flash memory and 96 KB SRAM, including segment LCD controller, capacitive touch sensing, USB Full-Speed, 14-bit A/D converter and security features.

RA6

The RA6 Series offers the widest integration of communication interfaces as well as the best performance level. These MCUs deliver up to 120MHz of CPU performance using an ArmⓇ CortexⓇ-M4 core and a memory range from 512kB to 2MB Flash. The series offers Ethernet, USB Full Speed and USB High Speed, QSPI, CAN, and TFT display driver integration. And, its embedded Secure Crypto Engine is full of features you can leverage in your higher-level solutions. The RA6 Series addresses a broad range of applications for IoT endpoints such as white goods, meters, and other industrial and consumer applications.

Group	Flash (KB)	RAM (KB)	Pin	Voltage (V)	Max Freq (MHz)	Features
RA6M1	512	256	64-100	2.7-3.6	120	Four variants of Arm Cortex-M4 core 120 MHz MCUs with 64-100 pin packages, 512 KB flash memory and 256 KB SRAM, and capacitive touch sensing, CAN, USB Full-Speed, security and safety features, and advanced analog
RA6M2	512-1024	384	100-145	2.7-3.6	120	Six variants of Arm Cortex-M4 core 120 MHz MCUs with 100-145 pin packages, up to 1 MB flash memory and 384 KB SRAM, as well as capacitive touch sensing, Ethernet, CAN, USB Full-Speed, security and safety features, and advanced analog
RA6M3	1024-2048	640	100-176	2.7-3.6	120	10 variants of Arm Cortex-M4 core 120 MHz MCUs with 100-176 pin packages, the highest performance and largest memory options (up to 640 KB SRAM / 2 MB flash), as well as TFT LCD controller, 2D graphics engine, capacitive touch sensing, Ethernet, CAN, US

Software

Flexible Software Package (FSP)

The Renesas RA Flexible Software Package (FSP) provides a quick and versatile way to build secure connected Internet of Things (IoT) devices using the Renesas RA family of Arm microcontrollers (MCUs). RA FSP provides production ready peripheral drivers to take advantage of the RA FSP ecosystem.

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FSP - Flexible Software Package for RA MCUs