Features
- 48MHz Arm Cortex-M23 core
- Up to 128KB Flash and 16KB SRAM
- 4KB data flash to store data as in EEPROM
- Scalable from 32-pin to 64-pin packages
- Wide operation temperature range from -40 °C to 125 °C
- Wide voltage range of 1.6V to 5.5V
- ±1% high-accuracy high-speed on-chip oscillator
- 32-bit general PWM timer, low-power asynchronous general-purpose timer
- 16-bit general PWM timer
- Real-time clock (RTC)
- 12-bit A/D converter
- Temperature sensor
- USB FS without crystal, USB Type-C interface
- SCI (UART, simplified SPI, simplified I2C, smart card interface)
- Low-power UART
- I3C bus
- CAN
- SPI
- SSI (Serial Sound Interface)
- Random number generator
- Safety functions
RA2L2 Block Diagram
Description
The RA2L2 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 RA2L2 group supports a wide operating voltage range of 1.6V to 5.5V, and it has rich serial communication functions such as I3C, SSI, low power UART, CAN, USB Full-Speed (FS) without crystal, and USB Type-C interface. The RA2L2 provides pin and peripheral compatibility with the RA2L1 group, RA2E1 group, and RA2A1 group and is ideal for battery-operated applications and other systems requiring high performance and low-energy consumption in space-constrained applications.
Parameters
| Attributes | Value |
|---|---|
| Main CPU | Arm Cortex-M23 |
| Program Memory (KB) | 64, 128 |
| RAM (KB) | 16 |
| Carrier Type | Full Carton (Tray), Full Tray (Tray), Tape & Reel |
| Supply Voltage (V) | 1.6 - 5.5 |
| I/O Ports | 24, 38, 54 |
| DRAM I/F | No |
| Temp. Range (°C) | Ta= -40 to +105, Ta= -40 to +125 |
| Operating Freq (Max) (MHz) | 48 |
| Ethernet speed | No |
| EtherCat (ch) (#) | 0 |
| USB FS (host ch/device ch) | ( 0 / 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 |
| I2C (#) | 0 |
| CAN (ch) | 1 |
| CAN-FD (ch) | 0 |
| Wireless | No |
| SDHI (ch) | 0 |
| High Resolution Output Timer | No |
| PWM Output (pin#) | 9, 14 |
| 32-Bit Timer (ch) | 1 |
| 16-Bit Timer (ch) (#) | 6 |
| Standby operable timer | Yes |
| Asynchronous General Purpose Timer / Interval Timer (ch) | 2 |
| 16-Bit A/D Converter (ch) | 0 |
| 14-Bit A/D Converter (ch) | 0 |
| 12-Bit A/D Converter (ch) | 10, 13, 17 |
| 24-Bit Sigma-Delta A/D Converter (ch) | 0 |
| 12-Bit D/A Converter (ch) | 0 |
| 8-Bit D/A Converter (ch) | 0 |
| Capacitive Touch Sensing Unit (ch) | 0 |
| Image Codec | No |
| Segment LCD Controller | No |
| Security & Encryption | Unique ID, TRNG |
Application Block Diagrams
 | USB-C Platform with Liquid Detection and Debug Access USB‑C system with liquid detection and debug access through a single connector, improving reliability while simplifying development, testing, and manufacturing. |
 | USB Data Logger Portable USB-C data logger for high-speed, low-power, and accurate metric recording anywhere. |
 | Electronic Toll with GNSS ETC systems automate toll payments to reduce traffic and eliminate manual toll booth delays. |
 | Gaming Keyboard A power-efficient, highly integrated, and compact keyboard system with customizable RGB lighting and stable, low-latency wireless performance. |
 | Gaming Mouse A power-efficient, highly integrated, and compact mouse system with customizable RGB lighting and stable, low-latency wireless performance. |
 | Dual-Needle Gauge Dual-needle gauge displays two real-time values for fast, intuitive analog monitoring. |
 | Current Loop Communication with AnalogPAK AnalogPAK™ enables a 4-20mA current loop with HART modem and FSK modulation support. |
 | Universal USB Converter for USB-UART, USB-I2C, USB-I3C Connect UART, SPI, I2C, and I3C devices to a PC via a universal USB converter with Pmod support. |
Additional Applications
- Audio streaming device
- PC peripherals
- POS system peripherals
- General-purpose systems
- IoT devices
- Industrial automation and sensors
- Consumer applications
- Home appliances
- Building automation
- Medical and healthcare devices
- Wearable device
Complete Your Design
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Renesas Boards & Kits
EK-RA2L2
Active
Evaluation Kit for RA2L2 MCU Group
The RA2L2 Evaluation Kit features the RA2L2 MCU, providing a versatile platform for prototype development across various applications. Designed for ease of use, this evaluation board includes a built-in SEGGER J-Link™ emulator, enabling program writing and debugging without the need for... Read More
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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 DENSHILoading
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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).
- IDE and Coding ToolIAR 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.Provider: IAR Systems
- Solution ToolkitDebugging assistance tool for developing systems which use the USB [Plugin for Renesas IDE "e² studio"] [Support MCU/MPU: RX, RL78, RA]
- 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
- 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]
- EmulatorWith their outstanding performance, robustness, and ease of use, J-Link debug probes are widely recognized as the market-leading debug probes today.Provider: SEGGER
- 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-RA2L2 example project shows how to write code for various Renesas Flexible Software Package (FSP) modules supported by the EK-RA2L2 kit. The Flexible Software Package provides an optimized, easy-to-use, scalable, and high-quality software solution for embedded system design.
- 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).
- IDE and Coding ToolIAR 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.Provider: IAR Systems
- Solution ToolkitDebugging assistance tool for developing systems which use the USB [Plugin for Renesas IDE "e² studio"] [Support MCU/MPU: RX, RL78, RA]
- 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.View More (14)
Software & Tools (14)
- Sample CodeThe EK-RA2L2 example project shows how to write code for various Renesas Flexible Software Package (FSP) modules supported by the EK-RA2L2 kit. The Flexible Software Package provides an optimized, easy-to-use, scalable, and high-quality software solution for embedded system design.
- Sample CodeDemonstrates some of the capabilities of the EK-RA2L2 kit and Flexible Software Package (FSP) by using multiple peripherals. The example project initializes the USB, ADC, and GPIO modules with control via a USB Comm Device class terminal. Once programmed, the user can control the board using the board buttons and view the regularly updated board configuration on the kit’s information screen.
- Sample CodeLearn how to implement environmental sensor monitoring on the EK‑RA2L2 using a USB Type‑C reference design for RA2L2 MCUs. The sample code demonstrates USB Type‑C CC detection, intermittent environmental sensor measurements using an RTC, and sensor data logging. It also supports real-time display of date and time, sensor data, and USB connection status on a Pmod OLED, as well as transmission of log data to a PC. This makes the sample code ideal for evaluation and demonstration purposes.
- Sample CodeLearn how to build a secure bootloader for Renesas RA0 and RA2 MCUs using MCUboot with TinyCrypt. This sample package includes bootloader and example application projects to help you implement secure boot functionality.
- View More (6)
Sample Code (6)
- Model - IBIS
Simulation Models (1)
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)
RA2L2 MCUs USB Type-C Reference Design
The RA2L2 MCU USB Type-C reference design is a solution for small battery applications with USB Type-C, such as USB data loggers, TWS charging cases, and PC peripherals. In this reference design, the RA2L2 32-bit MCU is used as the main CPU to control peripheral devices such as the charging IC,... Read More
This video introduces the RA2L2 MCU, supporting USB Type-C® standard Rev2.4 and USB FS for advanced connectivity. Learn how it enhances power efficiency, simplifies designs, and accelerates time to market for USB-powered applications.
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Support Communities
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RA2L2 GNSS Tolling Reference – Cellular Stack Memory Requirements & Configuration Clarification
... MQTT TLS/mbedTLS Full FSP cellular middleware Any external memory or offloading to the modem? Were any components minimized or excluded to fit within RA2L2 memory constraints? Understanding the reference implementation will help me determine whether RA2L2 is sufficient for this application or if an alternative configuration is recommended ...
Feb 17, 2026 -
How to update firmware via USB for HID Sensor on EK-RA2L2?
Hello everyone, I’m currently working on the Renesas EK-RA2L2 Development Kit, which connects to a PC through the USB-C port and functions as a USB HID Sensor device. Now I’d like to add firmware update capability over the same USB-C connection — either by using the ...
Nov 10, 2025 -
RA2L2 Support Audio class device
Hi, I want to check one query that Renesas RA2L2 Mcu will be supported for Audio class device. As there is need for USB-c type connection headset project. if the RA2L2 support please share the relevant document for more support to understand and implement. This thread was automatically locked ...
Aug 26, 2025
Knowledge Base
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RA Family: Underflow Detection Method of AGTW0 and Its Applicability for Software Standby Wake-up on RA2L2
Last Updated: 01/05/2026 Overview In a system using AGTW0 on the RA2L2, this document summarizes the method for detecting an AGTW0 underflow that occurs during Software Standby mode, and examines whether an AGTW0 underflow can be used as a wake-up source from Software Standby mode ...
Jan 5, 2026 -
RA Family: Low Power Modes with USB Type-C Interface
... for RA2L2 MCU, which provides a general-purpose USB2.0 compliant Type-C (USBCC) interface. Question How to use Low Power Mode with USBCC on RA2L2? Answer RA2L2 provides various low power modes based on operational state of the CPU and peripherals. Based on the power conservation requirements, these modes ...
Jan 29, 2026 -
RA Family: Am I correct in thinking that in order to obtain a 48-MHz USB clock, a 12-MHz resonator must be used?
(1) in the case of using RA2A1 MCU Since USB clock uses HOCO as the clock source, use any clock. (2) in the case of using RA6M1/RA6M2/RA6M3 MCU When using USB boot, connect an oscillator of 8, 10, 12, 15, 16, 20 or 24-MHz ...
Jun 10, 2025
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