Overview
Description
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.
Features
- 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)
Comparison
Applications
Design & Development
Software & Tools
Software & Tools
| Software title
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Software type
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Company
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|---|---|---|
| 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.
|
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 With their outstanding performance, robustness, and ease of use, J-Link debug probes 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, 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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12 items
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Sample Code
Sample Code
Filters
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|---|---|---|
| Type | Title | Date Date |
| Sample Code |
[Software=RA FSP],[Board=EK-RA2E2]
ZIP
7.09 MB
IDE:
e2 studio/GCC/AC6, IAR, Keil MDK
|
|
| Sample Code | ZIP 3.62 MB Compiler: GNU Arm Embedded IDE: e2 studio | |
| Sample Code | ZIP 10.37 MB 日本語 Compiler: GNU Arm Embedded, IAR Compiler for Arm Function: Security IDE: e2 studio, IAR EWARM | |
| Sample Code |
[Toolchains=GCC Arm Embedded|10.3.1.20210824] [Software=RA FSP] [Board=EK-RA2E1]
ZIP
15.03 MB
Compiler:
GNU Arm Embedded
IDE:
e2 studio
|
|
| Sample Code |
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.
ZIP
2.66 MB
Compiler:
ARMCC
IDE:
e2 studio
|
|
| Sample Code | ZIP 14.71 MB 日本語 | |
| Sample Code | ZIP 1.55 MB | |
| Sample Code | ZIP 745 KB | |
8 items
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Boards & Kits
Evaluation
EK-RA2E2
Active
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...
Recommended Documents:
Evaluation
FPB-RA2E2
Active
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™ interfaces...
Recommended Documents:
Demonstration
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.
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.
Product Options
Applied Filters:
Support
Support Communities
Get quick technical support online from Renesas Engineering Community technical staff.
Support Communities
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RA2E2 SPI read always return 0
Hello,I am working with the ra2e2 using the r_spi stack and trying to communicate with a SRAM IC through SPI but every time I try to read from the SRAM, I get 0s. I confirmed with an oscilloscope that the MCU is writing the correct bytes but the ...
Aug 24, 2023 -
How to diagnose a new custom RA2E2 board?
... or 3.3V with key. RES: can swith 0 V or 3.3V with key. MCU_RXD: timing is right when PC send data to RA2E2 board. But RA2E2 have no any response. Are there any other debug way for RA2E2? or any user guide doc for this issue? Thanks.
Oct 12, 2023 -
[RA2E2] block in FSP_HARDWARE_REGISTER_WAIT when call R_AGT_StatusGet
... is sometimes problem, and the board is customer H/W board. I search case in community, maybe have two reason: 1. oscillator issue. because RA2E2 is on-chip oscillator, so it is not the cause. 2. Close API is called twice. Anyone can provide debug way? thanks. static fsp ...
Dec 16, 2023
FAQs
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RA2E2: R_IIC_B_SLAVE_Open() does not return an error if slave address is in the range of reserved addresses.
... /UM10204.pdf page 16 3.1.12 Reserved addresses). If an address is used that is in the restricted range, the driver for the RA2E2 doesn't report an error. Workaround:When using the RA2E2 and the R_IIC_B_SLAVE_Open() API, don't use an address within ...
Apr 10, 2020 -
RA2E2: I3C Bus interface
MIPI I3C is a serial communication interface specification that improves upon the features, performance, and power use of I²C, while maintaining backward compatibility for most devices. RA2E2 and RA2L2 have the capability of multi Bus drop function with 4.6M bps communication speed while using significantly less power.RA2E2 and ...
Jun 10, 2025 -
How to handle the MD pin, when using E2 or E2 Lite emulators on a custom RA2 board?
... Hardware RA2E2 Group User's Manual: Hardware RA2A1 Group User's Manual: Hardware RA2E3 Group User's Manual: Hardware RA2A2 Group User's Manual: Hardware E2 Emulator, E2 Emulator Lite Additional Document for User’s Manual (Notes on Connection of RA Devices) Suitable Products RA2E1,RA2L1,RA2E2,RA2A1,RA2E3,RA2A2
Nov 7, 2024
Videos & Training
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.
Events & Webinars
News & Blog Posts
Blog Post
Nov 30, 2023
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Blog Post
May 24, 2023
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Blog Post
Jun 8, 2022
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