Overview
Description
The RA2E1 group is the RA Family’s entry-level single-chip microcontroller based on the 48MHz Arm® Cortex®-M23 core and up to 128KB code flash and 16KB SRAM memory. The optimized processing and Renesas’ low power process technology make it the industry's most energy-efficient ultra-low power MCU. The RA2E1 group supports a wide operating voltage range of 1.6V to 5.5V and a large selection of packages such as LQFP, QFN, LGA, BGA, and WLCSP. The RA2E1 provides pin and peripheral compatibility with the RA2L1 group and is ideal for battery-operated applications and other systems requiring high performance and low-energy consumption in space-constrained applications.
Features
- 48MHz Arm Cortex-M23
- Up to 128kB Flash memory and 16kB SRAM
- 4kB Data Flash to store data as in EEPROM
- Scalable from 25-pin to 64-pin packages
- Wide operating voltage range of 1.6V to 5.5V
- Enhanced Capacitive Touch Sensing Unit (CTSU)
- 12-bit ADC, LPACMP, temperature sensor
- 32-bit general PWM timer, 16-bit general PWM timer, low power asynchronous general-purpose timer
- RTC
- SCI (UART, simple SPI, simple I2C)
- SPI/I2C multi-master interface
- Safety
- Security and encryption
- A large selection of packages (LQFP, QFN, LGA, BGA, WLCSP)
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 |
| QE for Capacitive Touch: Development Assistance Tool for Capacitive Touch Sensors In developing embedded system using the capacitive touch sensor of MCUs, you can easily setup initial configurations of the touch interface as well as process the tuning of sensors, and reduce development time. [Plugin for Renesas IDE "e2 studio"] [Standalone Version] [Support MCU/MPU:RA, RL78, RX, Renesas Synergy™]
|
Solution Toolkit | 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 |
| 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 |
| 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 |
| 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 |
| 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 |
|
13 items
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Sample Code
Boards & Kits
Evaluation
EK-RA2E1
Active
Evaluation Kit for RA2E1 MCU Group
The EK-RA2E1 evaluation kit enables users to effortlessly evaluate the features of the RA2E1 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-RA2E1
Active
Fast Prototyping Board for RA2E1 MCU Group
The RA2E1 Fast Prototyping Board comes equipped with an R7FA2E1A93CFM microcontroller and 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 Lite so you can write/debug programs without...
Recommended Documents:
Test This Board Remotely
Available on Lab on the Cloud, use our PC-based GUI to instantly start configuring and testing designs in our virtual lab, no physical board needed.
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.
Evaluation
CTSU2-WATERPROOF-BTN
Active
Self-Capacitance Waterproof Button Solution
The Renesas capacitive sensor, CTSU2 can utilize an active shield without any external components. Active shielding is effective in improving water resistance as well as improving the noise immunity of self-capacitance buttons.
The Self-Capacitance Waterproof Button Solution reference design...
Evaluation
PTX105RQC
Active
PTX105R PMOD™ Board for IoT
The PTX105R PMOD™ board is fully integrated into the QuickConnect IoT ecosystem and provides a full-featured high-end NFC reader solution for easy integration. Using the standard Pmod form factor allows NFC evaluation on many Renesas MCU evaluation kits. The NFC stack is precompiled on the RA2E1...
Recommended Documents:
Development
CN058-WIFILOCKPOCZ
Active
Smart Lock with AWS IoT Development Kit
The demand for smart locks is a rapidly growing segment for the home and building automation industries. This smart door lock solution features fingerprint control and low-power Wi-Fi, providing convenient fingerprint recognition, as well as on-site and remote lock open/close. The solution uses...
Recommended Documents:
Test This Board Remotely
Available on Lab on the Cloud, use our PC-based GUI to instantly start configuring and testing designs in our virtual lab, no physical board needed.
Reference Designs
20-28 Cell Battery Management System up to 118V Reference Design
The US134-118VBTPKEV1Z board demonstrates a proof of concept (POC) solution for a 20-28 cell battery management system (BMS). The board supports a wide input range of 40V-120V and output of 40V-118V with 20A of continuous discharge current and can be increased to 60A with additional thermal...
Recommended Documents:
Test This Board Remotely
Available on Lab on the Cloud, use our PC-based GUI to instantly start configuring and testing designs in our virtual lab, no physical board needed.
Demonstration
QCIOT-MOTIONPOCZ-DRP-AI
Active
Trail Camera Demonstration Kit
The Trail Camera demonstration showcases the capabilities of the dynamically reconfigurable processor for AI (DRP-AI) subsystem in the RZ/V2L SoC along with a fast-booting Linux (<1.6s) implementation. It is a complex system that uses all major subsystems of the RZ/V2L. The on-chip Arm®...
Recommended Documents:
Test This Board Remotely
Available on Lab on the Cloud, use our PC-based GUI to instantly start configuring and testing designs in our virtual lab, no physical board needed.
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
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Support
Support Communities
Get quick technical support online from Renesas Engineering Community technical staff.
Support Communities
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RA2E1 acts as an SMBUS slave device
I am using the RA2E1 series from Renesas to act as an SMBUS slave device. I hope to receive data of varying lengths (for Block Read/Write operations). Are there any similar demos available for reference? Since the data length is variable, will I have to accept each piece ...
Jun 11, 2025 -
RA2E1 MCUBoot
Hi, I am trying to add a MCUBoot Bootloader to RA2E1 MCU, using FSPv3.0.1. By referencing to the application note: Using MCUboot with RA Family MCUs - Renesashttps://www.renesas.com › document › apn › usin.., I can successfully create the Bootloader and boot to my main application. However ...
Jun 25, 2021 -
RA2E1 OFS0 settings not being applied to code-flash
Hello, I am trying to configure the OFS0 configuration register to enable the IWDT, however all changes i make to the configuration.xml regarding the OFS0 register do not seem to make it to code-flash memory. See pictures below: I have also attempted to write to the code-flash ...
Jun 19, 2024
FAQs
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Default XTAL Value Incorrect on EK-RA2E1
Last Updated:01/25/2021 In FSP 2.3.0, the default XTAL (ie: main clock oscillator) value when creating a project for the EK-RA2E1 is 16MHz. The EK-RA2E1 board actually has a 20MHz XTAL. Please note that the default clock source for EK-RA2E1 projects ...
Jan 25, 2021 -
Migration guide from RA2E1 to RA2E3
Renesas provided Application note describing the difference points from hardware and software point view. Highlighting the points to care when migrate from RA2E1 to RA2E3. Otherwise User can easily migrate their design between these groups.
Dec 5, 2023 -
Error with QE for Capacitive Touch with TSxx-CFC on RA2E1 and FSP
Last Updated: 11/17/2021 Issue: When using a TS with CFC (TSxx-CFC) on RA2E1, an error occurs on QE's window of "Create Configuration of Touch Interfaces", and QE cannot be used. QE's window of "Create Configuration of Touch Interfaces" is shown below. This issue ...
Jan 1, 1970
Videos & Training
Events & Webinars
News & Blog Posts
Blog Post
Nov 30, 2023
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Blog Post
Feb 20, 2023
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Blog Post
Oct 25, 2022
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Blog Post
Jan 28, 2022
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Blog Post
Dec 1, 2021
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Blog Post
Jan 27, 2021
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