Overview

The RA2E2 Group is RA Family’s entry-line single-chip microcontroller based on the 48-MHz Arm^® Cortex^®-M23 core with Renesas' innovative on-chip peripheral functions. RA2E2 Group offers ultra-low power operation and high-speed serial communication with the smallest package options of 20-pin and 24-pin QFN and 16-pin wafer-level CSP package, satisfying the needs of cost-sensitive and space-constrained applications. These RA2E2 Group microcontrollers enable extremely cost-effective designs for IoT sensor nodes, portable devices, industrial control, and any battery-operated application that requires developers to cut power consumption, cost, and space.

48MHz Arm Cortex-M23
Up to 64kB Flash memory and 8kB SRAM
2kB Data Flash to store data as in EEPROM
Scalable from 16-pin to 24-pin packages
Wide operating voltage range of 1.6V to 5.5V
Best-in-class Active/Standby power consumption in Arm Cortex-M23 microcontroller
12-bit ADC, temperature sensor
16-bit general PWM timer, 32-bit low power asynchronous general-purpose timer
I³C bus interface
SCI (UART, Simple SPI, Simple I²C)
SPI interface
Safety
Security and encryption
125 °C operating temperature support
Smallest package options (16-pin WLCSP, 20 and 24-pin HWQFN)

Documentation

Design & Development

Software & Tools

Software title	Software type	Company

RA Flexible Software Package (FSP) FSP is an enhanced software package designed to provide easy-to-use, scalable, high-quality software for embedded system designs using Renesas RA Family of Arm Microcontrollers. Note: FSP with e² studio Installer (Platform Installer) will install the e² studio tool, FSP packs, GCC toolchain, and Segger J-Link drivers required to use this software. No additional installations are required. Downloads Securing Data at Rest Utilizing the Renesas Security MPU Securing your IP and Protecting Sensitive Data Security for the Connected World EK-RA2E2 Example Project Bundle Low Power Application (Use of ADC, DTC and ELC at Snooze mode) for FPB-RA2E1 and FPB-RA2E2 Secure Bootloader for RA2 MCU Series – Application Project Converting Applications from e² studio to IAR or Keil for RA – Application Note EK-RA2E2 Example Project Bundle RA2E2 HS3001 Sensor Device Example – Application Project RA2E2 HS3001 Sensor Device Example – Application Project RA2E2 ZMOD4410 Sensor Device Example – Application Project RA2E2 ZMOD4410 Sensor Device Example – Application Project Securing Data at Rest Utilizing the Renesas Security MPU Low-Level Register Programming Guide for RA MCUs	Software Package	Renesas
E2 emulator Lite [RTE0T0002LKCE00000R] On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RL78, RX, RISC-V MCU]	Emulator	Renesas
E2 emulator [RTE0T00020KCE00000R] On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RH850, R-Car D1, RL78, RX, RISC-V MCU]	Emulator	Renesas
RA Smart Configurator The Renesas RA Smart Configurator (RA SC) is a desktop application that helps you in configuring software systems (including a Board Support Package (BSP), drivers, RTOS, and middleware) for RA-Family MCUs when you are using a third-party IDE and toolchain.	Solution Toolkit	Renesas
PG-FP6 Flash memory programmer [Programming software: Dedicated GUI-based software, the "FP6 Terminal"] [Support MCU/MPU and devices: RA, RE, RX, RL78, RH850, RISC-V MCU, Renesas Synergy, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver, SuperH RISC engine, V850, 78K, R8C]	Programmer (Unit/SW)	Renesas
Renesas Flash Programmer (Programming GUI) Flash memory programming software [Support MCU/MPU and devices: RA, RE, RX, RL78, RH850, RISC-V MCU Renesas Synergy, DA1453x, DA1459x, DA1469x, DA1470x, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver, V850, 78K0R, 78K0]	Programmer (Unit/SW)	Renesas
e² studio - information for RA Family Eclipse-based Renesas integrated development environment (IDE).	IDE and Coding Tool	Renesas
SEGGER emWin GUI Library for Renesas RA Products SEGGER's emWin graphics library is a ready-to-use solution that provides a versatile and professional GUI platform for creating interactive and high-quality graphical user interfaces on any type of display for the Renesas RA family.	Imaging	SEGGER
SEGGER J-Link and J-Trace PRO The J-Link debug probes offer full support for RZ Family MPUs. With their outstanding performance, robustness, and ease of use are widely recognized as the market-leading debug probes today.	Emulator	SEGGER
IAR Embedded Workbench for Arm IAR Embedded Workbench for Arm (EWARM) provides a complete development environment for Arm - including RA Family MCUs - generating fast, compact code and enabling you to take full control of your code.	IDE and Coding Tool	IAR Systems
Arm® Keil® MDK Arm® Keil® MDK is a comprehensive software development solution for Arm-based microcontrollers, including RA Family MCUs, containing all the components that you need to create, build, and debug embedded applications.	IDE and Coding Tool	Arm® Keil® MDK Arm®
Reality AI Utilities Round-trip workflow for AI development and performance validation allowing to collect data, optimize models, and deploy directly to Renesas hardware	Solution Toolkit	Renesas
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Sample Code

Filters
Type	Title Title	Date Date Date
Sample Code	EK-RA2E2 Example Project Bundle [Software=RA FSP],[Board=EK-RA2E2] Log in to Download ZIP 7.31 MB IDE: e2 studio/GCC/AC6, IAR, Keil MDK Related Files: Application Note	Apr 28, 2025
Sample Code	Low Power Application (Use of ADC, DTC and ELC at Snooze mode) for FPB-RA2E1 and FPB-RA2E2 Log in to Download ZIP 3.62 MB Compiler: GNU Arm Embedded IDE: e2 studio Related Files: Application Note	Sep 10, 2024
Sample Code	RA Family IEC 60730/60335 Self Test Library for RA MCU (CM4_CM23) - Sample Code Log in to Download ZIP 10.37 MB 日本語 Compiler: GNU Arm Embedded, IAR Compiler for Arm Function: Security IDE: e2 studio, IAR EWARM Related Files: Application Note	May 31, 2024
Sample Code	Secure Bootloader for RA2 MCU Series – Application Project - Sample Code [Toolchains=GCC Arm Embedded\|10.3.1.20210824] [Software=RA FSP] [Board=EK-RA2E1] Log in to Download ZIP 15.03 MB Compiler: GNU Arm Embedded IDE: e2 studio Related Files: Application Note	May 1, 2024
Sample Code	Securing Data at Rest Utilizing the Renesas Security MPU This application project discusses the considerations for securing Data at Rest in an embedded system and provides guidelines on how to use the Security MPU hardware feature of the RA Family MCUs to implement a secure Data at Rest solution. Log in to Download ZIP 2.66 MB Compiler: ARMCC IDE: e2 studio Related Files: Application Note	Mar 4, 2024
Sample Code	RA2E2 Examples of IO-Link Solutions Log in to Download ZIP 14.71 MB 日本語 Related Files: Application Note	Sep 28, 2023
Sample Code	RA2E2 ZMOD4410 Sensor Device Example – Application Project Log in to Download ZIP 1.55 MB Related Files: Application Note	Aug 26, 2022
Sample Code	RA2E2 HS3001 Sensor Device Example – Application Project Log in to Download ZIP 745 KB Related Files: Application Note	Aug 24, 2022
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Evaluation

EK-RA2E2

Evaluation Kit for RA2E2 MCU Group

The EK-RA2E2 evaluation kit enables users to effortlessly evaluate the features of the RA2E2 MCU Group and develop embedded systems applications using Renesas' Flexible Software Package (FSP) and e² studio IDE. Utilize rich on-board features along with your choice of popular ecosystem add-ons to...

Fast Prototyping Board for RA2E2 MCU Group

RA2E2 Fast Prototyping Board is an evaluation board specialized for prototype development for a variety of applications. It has a built-in emulator circuit equivalent to an E2 Emulator OB, so you can write/debug program without additional Tools. In addition, with Arduino Uno™ and Pmod™...

RA2E1 IO-Link Pressure Sensor Solution Demonstration Kit

This solution is a combination of the ultra-small and low-power consumption 32-bit RA2E1 MCU and the ZSSC3240 sensor signal conditioner (SCC) kit. It realizes pressure measurement and signal processing through IO-Link communication.

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.

Explore ECAD Models

Models


Type	Title	Date
Model - IBIS	IBIS Models for RA2E2 ZIP 598 KB	Sep 20, 2022
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Product Options

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Videos & Training

RA2E2 48MHz Arm® Cortex®-M23 MCUs with Ultra-Low Power Consumption

Watch an overview of the tiny, ultra-low power RA2E2 MCUs and see the innovative peripheral functions optimized for cost-sensitive and space-constrained IoT endpoint, wearable, medical, industrial automation and other consumer and home appliance applications. Visit renesas.com/RA2E2 for more details including documentation, samples and evaluation kits.

Video List