Overview
Description
The Renesas RA4L1 MCU group features low-power, 32-bit microcontrollers (MCUs) based on the Arm® Cortex®-M33 (CM33) core with TrustZone®, delivering an ideal balance of low voltage operation, low power consumption, and high performance. The RA4L1 offers operation down to 1.6V combined with a low-power standby current of as little as 1.65µA and a multitude of low-power features enabling the user to dynamically optimize power/performance to their application requirements.
These MCUs include low-power features such as segment LCD display drive and an advanced security engine, as well as RTC, ADC, and timers. These MCUs integrate communications interfaces such as CAN FD, USB 2.0 FS without the need of a crystal, I2C/I3C, and low-power UARTs making these devices ideal for many industrial automation, home appliances, smart home, consumer, building/home automation, and medical/healthcare applications.
The RA4L1 comes in a wide variety of standard LQFP and QFN package options as well as a range of space-saving BGA and CSP options and offers support for operating temperatures of -40 °C to 125 °C. The RA4L1 MCUs are fully supported by the Renesas Flexible Software Package and a comprehensive set of hardware and software development tools.
Features
- 80MHz Arm Cortex-M33 with TrustZone
- 512KB dual bank flash supporting BGO
- 64KB SRAM with 32KB parity and 32KB ECC
- 8KB data flash
- 168µA/MHz active current, 1.65µA standby current
- Fast wake-up <3.5µS (from MOCO)
- 6 SCI (UART, Simple SPI, Simple I2C)
- 2 low-power UARTs with 32kHz support
- SPI/I2C multi-master interface
- I3C interface
- USB 2.0 FS
- CAN FD
- Quad SPI with XIP
- 32-bit and 16-bit timers, 32-bit ultra-low power timers
- 2 x watchdog timer
- Real-Time Clock (RTC)
- 12-bit ADC and 12-bit DAC
- Low-power analog comparator
- Temperature sensor
- 8 x 48 segment LCD drive
- 12-channel capacitive touch
- Serial Sound Interface (SSI)
- Advanced security engine with support for: TRNG, Unique ID, AES, ECC, and SHA
Comparison
Applications
Design & Development
Software & Tools
Sample Code
Sample Code
Filters
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| Type | Title | Date Date |
| Sample Code |
[Software=RA Flexible Software Package|v5.9.0],[Toolchains=GNU Arm Embedded|13.2]
ZIP
7.41 MB
日本語
Application:
Appliances, Human Machine Interface (HMI)
Compiler:
GNU ARM Embedded
Function:
Evaluation Kit, HMI
IDE:
e2 studio
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| Sample Code | ZIP 3.34 MB | |
| Sample Code | ZIP 2.21 MB | |
| Sample Code |
[Software=RA Flexible Software Package|v5.80],[Toolchains=GNU Arm Embedded|13.2]
ZIP
3.47 MB
日本語
Application:
Home Entertainment, Human Machine Interface (HMI)
Compiler:
GNU ARM Embedded
Function:
Evaluation Kit, HMI
IDE:
e2 studio
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4 items
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Boards & Kits
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.
Support
Support Communities
Renesas Academy
Support Communities
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[RA4L1]QE Capacitive Touch Tuning Stuck at Step 1/7 When r_adc Stack is Created Before rm_touch
I am currently working on a project using the RA4L1 MCU (R7FA4L1BD) with FSP version 5.9.0 and QE for Capacitive Touch version 4.1.0 (4.1.0.v20250123-0520). I encountered an issue when using QE for Capacitive Touch tuning. When I start the tuning process, it ...
Jun 15, 2025 -
iic0 for ra4l1
I am currently working on an I²C communication setup using the RA4L1 microcontroller. I have configured the I²C master using the Renesas Flexible Software Package (FSP), and I am testing it based on the example provided in the RA Flexible Software Package Documentation that exist here RA Flexible Software Package ...
Jul 13, 2025 -
FreeRTOS Tickless idle mode for RA4L1
Hi, As the subject implies I'm wondering if tickless idle mode is supported for the freertos port of RA4L1? If so, are there any examples showcasing this feature for Software Standby mode?
Jul 14, 2025
FAQs
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Lower power features on the RA4L1 MCUs
RA4L1 MCU's integrate new low power features and multiple low power modes to improve power efficiency, even when operating at the highest speeds. The RA4L1 support a wide range of external and internal clock sources which can be selected to provide the optimum performance and lowest power consumption at ...
Feb 19, 2025 -
Memory Options available with the RA4L1 MCUs
To support the diverse and demanding application needs, the RA4L1 Group MCUs support multiple internal memory options. 256 or 512k dual bank embedded flash with 8 Kbytes of Dataflash providing an area of memory idea for data storage with a higher write / erase count Quad SPI memory interface with ...
Feb 19, 2025 -
RA4L1 MCU Package Options
The RA4L1 Group MCUs are available in a wide range of standard and compact package options. The RA4L1 is available in 48, 64 and 100LQFP packages as well as 48 QFN, and compact 64 BGA and 100 BGA packages with 0.5mm pitch . The RA4L1 Is also available in a ...
Feb 19, 2025
Videos & Training
The Renesas RA4L1 MCU group offers 80MHz, 32-bit microcontrollers powered by the Arm® Cortex®-M33 core with TrustZone®. These low-power, general-purpose MCUs are designed to meet the needs of applications requiring efficient energy usage, high performance, and advanced security features.
Additional Videos
Events & Webinars
News & Blog Posts
News
Feb 27, 2025
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News
Feb 19, 2025
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Blog Post
Feb 18, 2025
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Blog Post
Oct 13, 2022
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Blog Post
Jan 28, 2022
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