Features
- 48MHz Arm Cortex-M4
- 256kB Flash memory and 32kB SRAM
- 8kB Data Flash to store data as in EEPROM
- Scalable from 40-pin to 100-pin packages
- Segment LCD controller
- 14-bit A/D converter
- Capacitive touch sensing unit
- USB 2.0 Full Speed
- CAN 2.0B
- SCI (UART, Simple SPI, Simple I2C)
- SPI/ I2C multimaster interface
RA4M1 Block Diagram
Description
The Renesas RA4M1 group of microcontrollers (MCUs) uses the high-performance Arm® Cortex®-M4 core and offers a segment LCD controller and a capacitive touch sensing unit input for intensive HMI designs. The RA4M1 MCU is built on a highly efficient low power process and is supported by an open and flexible ecosystem concept—the Flexible Software Package (FSP), built on FreeRTOS—and is expandable to use other RTOSes and middleware. The RA4M1 is suitable for applications where a large amount of capacitive touch channels and a segment LCD controller are required.
Parameters
| Attributes | Value |
|---|---|
| Main CPU | Arm Cortex-M4 |
| Program Memory (KB) | 256 |
| RAM (KB) | 32 |
| Carrier Type | Bulk (Tray), Full Carton (Tray), Tape & Reel |
| Supply Voltage (V) | 1.6 - 5.5 |
| I/O Ports | 28, 36, 52, 84 |
| DRAM I/F | No |
| Temp. Range (°C) | Ta= -40 to +85, Ta=-40 to +105 |
| Operating Freq (Max) (MHz) | 48 |
| Ethernet speed | No |
| EtherCat (ch) (#) | 0 |
| USB FS (host ch/device ch) | ( 1 / 1 ) |
| USB HS (host ch/device ch) | ( 0 / 0 ) |
| USB SS (host ch/device ch) | ( 0 / 0 ) |
| SCI or UART (ch) | 4 |
| SPI (ch) | 1, 2 |
| I2C (#) | 2 |
| CAN (ch) | 1 |
| CAN-FD (ch) | 0 |
| Wireless | No |
| SDHI (ch) | 0 |
| High Resolution Output Timer | No |
| PWM Output (pin#) | 10, 12, 16 |
| 32-Bit Timer (ch) | 2 |
| 16-Bit Timer (ch) (#) | 2, 4, 6 |
| Standby operable timer | Yes |
| Asynchronous General Purpose Timer / Interval Timer (ch) | 0, 2 |
| 16-Bit A/D Converter (ch) | 0 |
| 14-Bit A/D Converter (ch) | 11, 14, 18, 25 |
| 12-Bit A/D Converter (ch) | 0 |
| 24-Bit Sigma-Delta A/D Converter (ch) | 0 |
| 12-Bit D/A Converter (ch) | 1 |
| 8-Bit D/A Converter (ch) | 2 |
| Capacitive Touch Sensing Unit (ch) | 10, 15, 24, 27 |
| Image Codec | No |
| Segment LCD Controller | No, Yes |
| Security & Encryption | Unique ID, TRNG, AES(128/256), GHASH |
Application Block Diagrams
 | Humanoid Battery Management System Integrated humanoid robot BMS enabling safe, real-time power management, protection, and battery-state control. |
 | Mid-Range Thermostat Mid-range thermostat with Wi‑Fi, integrated sensors, and smart home connectivity for enhanced comfort and efficiency. |
 | Dual-Needle Gauge Dual-needle gauge displays two real-time values for fast, intuitive analog monitoring. |
 | Smart Cradle Smart cradle with cry detection, real-time alerts, auto-swing function, and Bluetooth mobile app support. |
 | Ki Wireless Power Transceiver System (Tx) High‑efficiency Ki wireless power transceiver combining inductive power transfer and NFC for reliable, compact, cable‑free appliance charging. |
 | Universal USB PD Lab Power Supply & Monitor USB PD portable power supply up to 48V, ideal for engineers' mobile and fieldwork needs. |
 | IO-Link Sensors This system enables smart sensor control via IO-Link communication. |
 | Industrial CAN Sensor Network Industrial CAN network with Arm Cortex-M23 MCU offers reliable, secure communication and robust performance. |
Additional Applications
- HMI with Seg/Com LCD display
- Security (fire detection, burglar detection, panel control)
- Industry (door openers, panel control)
- HVAC (heating, air conditioning, boiler control)
- Home appliance
- General purpose
Complete Your Design
Explore complementary products to elevate your design
Renesas Boards & Kits
EK-RA4M1
Active
Evaluation Kit for RA4M1 MCU Group
The EK-RA4M1 evaluation kit enables users to effortlessly evaluate the features of the RA4M1 MCU Group and develop embedded systems applications using Renesas' Flexible Software Package (FSP) and various IDEs.
Getting Started
Running the Quick Start Example Project
- The EK-RA4M1 board comes... Read More
Recommended Documents:
TW007-INDCANPOCZ
Active
Industrial CAN Sensor Network Development Kit
The industrial CAN sensor network features a main monitoring board and several daughter boards with temperature and humidity, airflow, and air quality sensors. The sensor boards utilize the RA2L1 microcontroller for its small form factor and Arm® Cortex®-M23 processor with a built-in CAN module... Read More
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.
Partner Boards & Kits
Evaluation
RA Family Microcontroller Board
This solution provides a general-purpose evaluation board featuring Renesas RA Family microcontrollers. It is available as a standalone evaluation board or as part of functional kits supporting applications such as CAN, touch key interfaces, and brushless motor control.
Supported Products:
RA0E1,RA2A1,RA2A2,RA2E1,RA2E3,RA2L1,RA2L2,RA2T1,RA4C1,RA4E1,RA4E2,RA4L1,RA4M1,RA4M2,RA4M3,RA4T1,RA6E1,RA6E2,RA6M1,RA6M2,RA6M3,RA6M4,RA6M5,RA6T1,RA6T2,RA6T3,RA8E1,RA8M1,RA8T1Provided By:
HOKUTO DENSHI
SoM/SBC
RA4M1 Feather System on Module (SoM)
High-performance system on module (SoM) featuring the Arm® Cortex®-M4 CPU core with a maximum operating frequency of 48MHz, 256KB Flash Memory, and 1 KB SRAM in a compact Feather form factor. Ideal for IoT devices and industrial applications requiring efficient operation and advanced peripherals.
Supported Products:
RA4M1Provided By:
Zalmotek – Proto Lab S.r.l.
Community Board
Seeed Studio XIAO RA4M1
Provides a compact development board based on a 32‑bit Arm® Cortex®‑M4 microcontroller running up to 48MHz with a floating‑point unit. Supports on‑board Flash, static random‑access memory, Electrically Erasable Programmable Read‑Only Memory, Universal Serial Bus 2.0 connectivity, Controller Area Network interface, analog‑to‑digital and digital‑to‑analog converters, and integrated power management. Enables low‑power operation with battery charging support, making it suitable for portable and battery‑powered embedded applications.
Supported Products:
RA4M1Provided By:
Seeed StudioLoading
Filters
Software & Tools
Filter by Type
Filter by Provider
Sample Code
Filter by Application
Filter by Function
Filter by Compiler
Filter by IDE
Simulation Models
Partner Solutions
- Software PackageRA Flexible Software Package (FSP)RECOMMENDEDFSP 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.
- IDE and Coding ToolEclipse-based Renesas integrated development environment (IDE).
- Solution ToolkitIn 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 ToolkitThe 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 ToolkitRound-trip workflow for AI development and performance validation allowing to collect data, optimize models, and deploy directly to Renesas hardware
- Solution ToolkitKey wrapping tool for key management systems using Renesas security IP. Enables secure installation and update of user application and device lifecycle management (DLM) keys.
- EmulatorOn-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RH850, R-Car D1, RL78, RX, RISC-V MCU]
- EmulatorOn-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RL78, RX, RISC-V MCU]
- Programmer (Unit/SW)On-chip debugging emulator available as a flash memory programmer [Available flash programming software: Renesas Flash Programmer] [Support MCU/MPU and devices: RE, RX, RL78, RH850, RISC-V MCU, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver]
- Programmer (Unit/SW)On-chip debugging emulator available as a flash memory programmer [Available flash programming software: Renesas Flash Programmer] [Support MCU/MPU and devices: RX, RL78, RISC-V MCU, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver]
- Programmer (Unit/SW)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)Flash memory programming software [Support MCU/MPU and devices: RA, RE, RX, RL78, RH850, RISC-V MCU, Renesas Synergy, DA1453x, DA1459x, DA1469x, DA1470x, DA148xx, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver, V850, 78K0R, 78K0]
- ImagingSEGGER'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.
- Sample CodeThe EK-RA4M1 example project bundle demonstrates how to write code for various Renesas Flexible Software Package (FSP) modules supported by the EK-RA4M1 kit. The sample code provides ready‑to‑build reference implementations that illustrate peripheral operation and system behavior, enabling developers to quickly evaluate FSP features and accelerate embedded application development.
- Sample CodeLearn how Renesas MCU security revolves around integrated security engines. There are different types of security engines across the RA MCU. Users can find the specific engine used in a particular MCU from its hardware user’s manual. The security engines can operate in two different modes, called Compatibility Mode and Protected Mode. The application note “Renesas Security Engine Operational Modes” explains the definition of the two modes and their use cases.
- Software PackageRA Flexible Software Package (FSP)RECOMMENDEDFSP 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.
Recommended (1)
- Software PackageRA Flexible Software Package (FSP)RECOMMENDEDFSP 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.
- IDE and Coding ToolEclipse-based Renesas integrated development environment (IDE).
- Solution ToolkitIn 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 ToolkitThe 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 ToolkitRound-trip workflow for AI development and performance validation allowing to collect data, optimize models, and deploy directly to Renesas hardwareView More (13)
Software & Tools (13)
- Sample CodeThe EK-RA4M1 example project bundle demonstrates how to write code for various Renesas Flexible Software Package (FSP) modules supported by the EK-RA4M1 kit. The sample code provides ready‑to‑build reference implementations that illustrate peripheral operation and system behavior, enabling developers to quickly evaluate FSP features and accelerate embedded application development.
- Sample CodeLearn how Renesas MCU security revolves around integrated security engines. There are different types of security engines across the RA MCU. Users can find the specific engine used in a particular MCU from its hardware user’s manual. The security engines can operate in two different modes, called Compatibility Mode and Protected Mode. The application note “Renesas Security Engine Operational Modes” explains the definition of the two modes and their use cases.
- Sample CodeLearn how to inject plaintext keys into RA MCUs using security engines operating in Compatibility Mode. Example projects for various MCUs and security engines demonstrate plaintext key injection with Renesas Flexible Software Package (FSP) APIs and PSA Certified Crypto APIs.
- Sample Code
- View More (8)
Sample Code (8)
- Model - IBIS
- Model - BSDL
Simulation Models (2)
Development ToolUniversal third-party programmers support a wide range of Renesas programmable devices across both off-board and on-board programming modes.Provided By: Elnec s.r.o.- Application Specific SWEnables adaptive pedestrian traffic light control by detecting and counting pedestrians and calculating wait times in real-time, with no network connection required. Runs entirely at the edge on the Renesas RA8P1 MCU, accelerated by the Arm® Ethos-U55 Neural Processing Unit (NPU), achieving 11ms inference time within a ...Provided By: Irida Labs
- Development ToolSupporting Arm® and RX microcontrollers, the SEGGER J-Link series is an industry-standard debugger for software development. High-speed programming algorithms reduce binary transfer time and accelerate development cycles. Broad compatibility supports Renesas e² studio, major IDEs, and RZ, RA, and RX devices. Advanced analysis with Ozone and ...Provided By: EmbiTeK Co., Ltd.
- AILocal AI–based Audio Event Detection identifies sound events such as baby crying and glass breaking with ~95% accuracy and 10–100 ms latency, enabling fast and reliable response to critical events. Supports deployment on Cortex-M0+ and comparable RISC-V/NPU/DSP platforms. Model size ranges from ...Provided By: Aizip Inc.
- Development ToolProvides high-volume automated programming systems engineered for factory-scale production, enabling efficient handling of a wide range of integrated circuit (IC) devices. Optimized for microcontrollers (MCUs) and flash memory, the systems support tube, tape, and tray input/output configurations for flexible manufacturing integration. Advanced auto-teach alignment capabilities ...Provided By: DediProg Technology Co., Ltd.View More (92)
Partner Solutions (92)
Standard 4-20mA Loop - Industrial Receiver Demonstration Kit
The 4mA to 20mA current loop is the dominant standard for sensor systems in many industries, primarily because it is the simplest option to configure and connect. It also uses less wiring and connections than other signals, therefore reducing overall system cost. In addition, in large locations,... Read More
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.
The Renesas RA Family of 32-bit MCUs is designed to help device developers create the next generation of secure IoT devices. They are low power, have a wide variety of peripherals and connectivity options, and sport the latest HMI to help end customers have an immersive experience.
Additional Videos
Events & Webinars
News & Blog Posts
Support Communities
-
RA4M1 Flash Data disable with debugger
Hi, Can some one maybe help me to disable the debugger from erasing flash data on debug for E2 Studio. Regards, Ronald Hare This thread was automatically locked due to age.
Feb 17, 2020 -
Arduino UNO R4 MINIMA - RA4M1 can't connect anymre but isn't dead
Hi, I was playing with clock sources to investigate an Arduino framework wrong clock configuration when suddenly the board stop working. I'm using JLink for debug so I have all advanced tools to interface with the board. Now I want to recovery the board because I can't connect ...
Mar 19, 2025 -
DMA or DTC transfer to SCI0.UART TX in RA4M1 MCU
I am trying to use either DMA or DTC transfer for SCI0.UART in EK-RA4M1 board with FSP v3.1.0 for data transmission and reception. I started with the sci_uart_ek_ra4m1_ep example and now I have a custom printf function implemented for printing messages and ...
Aug 12, 2021
Knowledge Base
-
RA2A1, RA4M1, RA4W1: Can A/D conversion be performed on other analog input?
No. When temperature sensor output or internal reference voltage is selected, please select single-scan mode, remove all analog inputs from conversion target, and perform A/D conversion.
Apr 28, 2021 -
Using RFP with the EK-RA4M1 Board
RFP will not work with the EK-RA4M1 board, when either E2/E2lite or J-Link is chosen as the connection method. That is because these debuggers when used with RFP are not connecting over the SWD/JTAG, but via the Factory boot serial interface. The debugger is ...
Jun 25, 2021 -
RA Family: Why does the RTC counter sometimes cannot be read correctly?
When using the RTC, set the clock so that the frequency of the peripheral module clock (PCLKB) is greater than or equal to the frequency of the RTC count source.If this condition is not met, the RTC counter may not be read correctly.For details, see the overview of ...
Jun 4, 2021
Support Communities
Get quick technical support online from Renesas Engineering Community technical staff.
Knowledge Base
Browse our knowledge base for helpful articles, FAQs, and other useful resources.
