Name: RA0E1 - 32MHz Arm Cortex-M23 Entry-Level Ultra-Low Power General-Purpose Microcontroller
Brand: Renesas Electronics Corporation
SKU: RA0E1 - 32MHz Arm Cortex-M23 Entry-Level Ultra-Low Power General-Purpose Microcontroller
Availability: OutOfStock

Renesas MCU Guide

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Overview

The RA0E1 group is a basic, simple MCU in the entry line of the RA0 series, offering excellent cost effectiveness and ultra-low power consumption. It delivers up to 32MHz of CPU performance using an Arm^® Cortex^®-M23 core with up to 64KB of embedded flash memory and a wide supply voltage range from 1.6V to 5.5V. The RA0 series is ideal for cost-sensitive applications such as low power and lower cost for consumer electronics, system control for small appliances, industrial system control, and building automation.

32MHz Arm Cortex-M23 core
Up to 64KB Flash and 12KB SRAM
1KB data flash memory (100,000 program/erase (P/E) cycles)
16-pin and 32-pin package options
Wide voltage range of 1.6V to 5.5V
TAU (16-bit general PWM timer)
TML32 (32-bit interval timers)
RTC
12-bit A/D converter
Temperature sensor
SAU (UART, Simple SPI, Simple I²C)
UART
I²C bus
Random number generator
Safety functions
+-1% high accuracy high-speed on-chip oscillator
Flexible power architecture with fast wake-up
Best-in class HAL driver code
Supports Arm ecosystem and Renesas original development tools

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 FPB-RA0E1 Example Project Bundle - Sample Code FPB-RA0E1 Example Project Bundle Low-Level Register Programming Guide for RA MCUs Low-Level Register Programming Guide for RA MCUs	Software Package	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®
e² studio - information for RA Family Eclipse-based Renesas integrated development environment (IDE).	IDE and Coding Tool	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 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
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	FPB-RA0E1 Example Project Bundle - Sample Code Log in to Download ZIP 11.88 MB Related Files: Application Note	Jun 6, 2025
Sample Code	RA2E1, RA2L1, RA0E1, RA0E2 LoRa®-based Wireless Software Package Rev.4.70 - Sample Code [Software=RA Flexible Software Package\|v5.9.0],[Toolchains=GNU Arm Embedded\|13.2.1.arm-13-7] Log in to Download ZIP 11.78 MB Application: Communications Infrastructure, Consumer Electronics, Industrial Compiler: GNU ARM Embedded Function: Software Package IDE: e2 studio Related Files: Application Note	Apr 18, 2025
Sample Code	RA2E1, RA2L1, RA0E1, RA0E2 LoRaWAN® Sensor Demo Rev.2.70 - Sample Code [Software=RA Flexible Software Package\|v5.9.0],[Toolchains=GNU Arm Embedded\|13.2.1.arm-13-7] Log in to Download ZIP 1.93 MB Application: Communications Infrastructure, Consumer Electronics, Industrial Compiler: GNU ARM Embedded Function: Software Package IDE: e2 studio Related Files: Application Note	Apr 18, 2025
Sample Code	Low-Level Register Programming Guide for RA MCUs ZIP 4.18 MB Related Files: Application Note	Mar 26, 2025
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Evaluation

FPB-RA0E1

RA0E1 Fast Prototyping Board

The RA0E1 Fast Prototyping Board is equipped with an RA0E1 MCU, making it an evaluation board specialized for prototype development for a variety of applications. It features a built-in SEGGER J-Link emulator circuit allowing you to write and debug programs without the need for additional tools....

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.

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Models


Type	Title	Date
Model - IBIS	IBIS Models for RA0E1 ZIP 799 KB	Sep 24, 2024
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Videos & Training

Getting Started with Fast Prototyping Board for RA Family

This video guides first-time users of the RA family using the Fast-Prototyping Board through the steps of installing a development environment, generating a project, and checking the operation to develop software.

The guide features the FPB-RA0E1 (Debugger: J-Link ARM) as a practical example.

Related Resources

FPB-RA0E1 - RA0E1 Fast Prototyping Board

Video List