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
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) | - |
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 | 128-bit Unique ID, TRNG |
Application Block Diagrams
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USB Data Logger
Portable USB-C data logger for high-speed, low-power, and accurate metric recording anywhere.
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Electronic Toll with GNSS
ETC systems automate toll payments to reduce traffic and eliminate manual toll booth delays.
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Gaming Keyboard
A power-efficient, highly integrated, and compact keyboard system with customizable RGB lighting and stable, low-latency wireless performance.
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Gaming Mouse
A power-efficient, highly integrated, and compact mouse system with customizable RGB lighting and stable, low-latency wireless performance.
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Dual-Needle Gauge
Dual-needle gauge displays two real-time values for fast, intuitive analog monitoring.
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Current Loop Communication with AnalogPAK
AnalogPAK™ enables a 4-20mA current loop with HART modem and FSK modulation support.
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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.
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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
Applied Filters:
Filters
Software & Tools
Sample Code
Simulation Models
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.
Related Resources
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
Blog Post
Jul 12, 2025
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News
Jun 10, 2025
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Blog Post
Oct 13, 2022
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Blog Post
Jan 28, 2022
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