Low power, Fast wake-up and Capacitive Touch
The RA2 Series is the RA Family's entry-level 32-bit MCU, offering excellent cost, performance, and ultra-low power consumption. It delivers up to 48MHz of CPU performance using an Arm® Cortex®-M23 core with up to 256KB of embedded flash memory and a wide single voltage supply range from 1.6V to 5.5V. With cutting-edge peripherals like high accuracy analog and capacitive touch sensing, the RA2 Series is ideal for system control or user interface applications such as healthcare devices, home appliances, office equipment, and measuring equipment.
Benefits
- RA2 Series use Arm® Cortex®-M23 core which most compact and efficient Cortex®-M implementation based on Armv8-M architecture profile offering high code density, low gate count, Thumb-2 instruction set, and hardware divide features.
- Large product lineup is from 16 up to 100 pin and Flash memory size starting from 16KB up to 256KB, including some very small package options, including QFN, LGA, BGA and smallest WLCSP
- Best-in class Active/Standby power consumption for Arm® Cortex®-M23 microcontroller
- On-chip analog components include a high accuracy 16-bit ADC, 24-bit sigma-delta ADC, fast response 12-bit DAC, rail-to-rail low-offset operational amplifiers, and high-speed/low-power comparators
- Reduced cost with on-chip peripheral functions, including high precision (1.0%) high-speed oscillator, temperature sensor, 5V tolerant ports and background operation data flash supporting 1 million erase/program cycles
- Enhanced capacitive touch sensing unit (CTSU) with high sensitivity and high noise immunity that realizes intuitive, high-quality HMI designs
- Various communication interfaces such as USB, CAN and I3C, which support IoT applications
Renesas RA2A1 group
60MHz Arm® Cortex® M23 with Integration of 24-bit Sigma Delta ADC
The RA2A1 group uses the high-performance Arm® Cortex®-M23 core and offers highly integrated, high-accuracy analog capabilities and therefore offers complete MCU with analog solution for signal conditioning and measurement. The RA2A1 Group supports a wide operating voltage range of 1.6V to 5.5V. It includes 16-bit SAR ADC, 24-bit Sigma Delta ADC, comparators, operational amplifiers, and DACs. The RA2A1 MCU targets cost sensitive and low power Industrial sensor applications where high resolution analog will become a cost benefit.
Key features
- 48MHz Arm® Cortex®-M23
- 256kB Flash Memory and 32kB SRAM
- 8kB DataFlash to store data as in EEPROM
- Scalable from 32pin to 64pin Packages
- Capacitive Touch Sensing Unit 16bit-SAR A/D, 24bit-SD A/D
- 12bit-D/A, 8bit-D/A
- OPAMP (3ch), ACMP-HS/LP
- USB2.0 Full Speed
- CAN 2.0
- SCI (UART, Simple SPI,Simple I2C)
Applications
- Industrial Automation (Photoelectric Sensor, Fiber Sensor, Temperature Sensor)
- Process Automation (Pressure Sensor, Flow control meter, Single Phase Meter)
- Building Automation/Home Appliance (Smoke Detector)
- Healthcare (Pulse Oximeters, Body Composition Measurement)
- General Purpose
Renesas RA2A2 group
48MHz Arm® Cortex® M23 with Integration of 24-bit Sigma Delta ADC
The RA2A2 group is a low-power microcontroller that combines a 48MHz Arm® Cortex®-M23 core and a rich set of peripheral functions. The RA2A2 MCU provides an optimized feature set suitable for a wide range of applications by supporting segment LCD and high-precision analog sensing functionalities while reducing power consumption, system cost, and overall footprint. Furthermore, the RA2A2's dual bank flash and security features make firmware updates easy and increase system reliability.
Key features
- 48MHz Arm® Cortex®-M23 core
- 512KB flash memory (dual bank) and 48KB SRAM
- 8KB data flash memory (100,000 program/erase (P/E) cycles)
- 64-pin, 80-pin, and 100-pin LFQFP package options
- 24-bit Sigma-Delta A/D converter, 12-bit A/D converter and temperature sensor
- 16-bit general-purpose timers, 32-bit and 16-bit low-power AGT timers, and independent power supply RTC
- SCI (UART, Simple SPI, Simple I2C), SPI and I2C bus
- Segment LCD controller (8com x 38seg)
- Security functions including AES, Secure MPU, Flash Access Window, TRNG
Applications
- Energy management devices
- Industrial automation
- Building automation
- Home appliances
- Medical and healthcare
- Consumer electronics
Renesas RA2E1 group
48MHz Arm® Cortex®-M23 Entry Line General Purpose Microcontroller
The RA2E1 group is RA Family’s entry line single-chip microcontroller based on the 48-MHz Arm® Cortex®-M23 core and up to 128-KB code flash and 16-KB SRAM memory. The optimized processing and Renesas’s low power process technology make it the industry's most energy-efficient Ultra-Low Power. The RA2E1 group supports a wide operating voltage range of 1.6V to 5.5V and a large selection of packages such as LQFP, QFN, LGA, BGA and WLCSP. The RA2E1 provides pin and peripheral compatibility with RA2L1 group, is ideal for battery-operated applications and other systems requiring high performance and low-energy consumption in space constrained applications.
Key features
- 48MHz Arm® Cortex®-M23
- Up to 128kB Flash Memory and 16kB SRAM
- 4kB Data Flash to store data as in EEPROM
- Scalable from 25pin to 64pin packages
- Wide operating voltage range of 1.6V to 5.5V
- Enhanced Capacitive Touch Sensing Unit (CTSU)
- 12-bit ADC, LPACMP, Temperature Sensor
- 32-bit General PWM Timer, 16-bit General PWM Timer, Low power Asynchronous General Purpose Timer
- RTC
- SCI (UART, Simple SPI, Simple I2C)
- SPI/ I2C multi-master interface
- Safety
- Security and encryption
- A large selection of packages (LQFP, QFN, LGA, BGA, WLCSP)
Applications
- General purpose
- Consumer applications
- Home appliances
- Industrial automation
- Building automation
- Medical & healthcare
Renesas RA2E2 group
48MHz Arm® Cortex®-M23 Entry Line General Purpose Microcontroller
The RA2E2 Group is RA Family’s entry line single-chip microcontroller based on the 48-MHz Arm® Cortex®-M23 core with Renesas' innovative on-chip peripheral functions. RA2E2 Group offers ultra-low power operation and high speed serial communication with smallest package options of 20-pin and 24-pin QFN and 16-pin wafer-level CSP package, satisfying the needs of cost-sensitive and space-constrained applications. These RA2E2 Group microcontrollers enable extremely cost-effective designs for IoT sensor nodes, portable devices, industrial control, and any battery-operated application that requires developers to cut power consumption, cost and space.
Key features
- 48MHz Arm® Cortex®-M23
- Up to 64kB Flash Memory and 8kB SRAM
- 2kB Data Flash to store data as in EEPROM
- Scalable from 16-pin to 24-pin packages
- Wide operating voltage range of 1.6V to 5.5V
- Best-in-class Active/Standby power consumption in Arm Cortex-M23 microcontroller
- 12-bit ADC, Temperature Sensor
- 16-bit General PWM Timer, 32-bit Low power Asynchronous General Purpose Timer
Applications
- General purpose
- IoT devices
- Industrial automation, industrial sensors
- Portable consumer devices
- Home appliances
- Building automation
- Medical & healthcare
- Wearable devices
Renesas RA2E3 group
48MHz Arm® Cortex®-M23 Entry Line General Purpose Microcontroller
The RA2E3 group is an entry-line, single-chip microcontroller in the RA family based on the 48MHz Arm® Cortex®-M23 core with up to 64KB code flash and 16KB SRAM memory. RA2E3 MCUs provide an optimized feature set for cost-sensitive applications by supporting pin-to-pin and peripheral compatibility with RA2E1 MCUs. Ultra-low power consumption contributes to energy-efficient system design, required for IoT applications and battery-operated systems to achieve longer battery life.
Key features
- 48MHz Arm® Cortex®-M23 Core
- Up to 64KB flash memory and 16KB SRAM
- 2KB data flash memory (100,000 program/erase (P/E) cycles)
- Package options of 32-pin and 48-pin
- Wide voltage range of 1.6V to 5.5V
- 16-bit general-purpose timers, 32-bit general-purpose timer, and 16-bit low-power asynchronous general-purpose timers
- 12-bit A/D converter and temperature sensor
- SCI (UART, Simple SPI, Simple I2C), SPI, and I2C bus
- Safety functions
Applications
- General purpose systems
- IoT devices
- Industrial automation and sensors
- Consumer applications
- Home appliances
- Building automation
- Medical & Healthcare devices
- Wearable device
Renesas RA2L1 group
48MHz Arm® Cortex®-M23 Ultra-Low power General Purpose Microcontroller
The RA2L1 group is based on the Arm® Cortex®-M23 core, the most energy-efficient CPU among Arm® Cortex®-M today. The optimized processing and Renesas’ low power process technology makes it the industry's most energy-efficient ultra-low power microcontroller. The RA2L1 group supports a wide operating voltage range of 1.6V to 5.5V, and a maximum CPU clock frequency of 48MHz, lower active mode current and standby mode current. The RA2L1 group also features an enhanced Capacitive Touch Sensing Unit (CTSU2), a set of serial communication interfaces, highly accurate converters and timers. The products are available with pin counts ranging from 48-pin to 100-pin.
Key features
- 48MHz Arm® Cortex®-M23
- 128kB/256kB Flash Memory and 32kB SRAM with ECC
- 8kB Data Flash to store data as in EEPROM
- Scalable from 48-pin to 100-pin packages
- Internal voltage regulators
- Enhanced Capacitive Touch Sensing Unit (CTSU2)
- 12-bit ADC, 12-bit DAC, LPACMP
- 32-bit general PWM timer, 16-bit general PWM timer, low power asynchronous general purpose timer
- RTC
- SCI (UART, Simple SPI, Simple I2C)
- SPI/I2C multi-master interface
- CAN
- Safety
- Security and encryption
Applications
- Consumer applications
- Home appliances
- Industrial automation
- Building automation
- Medical and healthcare
- General purpose
Renesas RA2L2 group
48MHz Arm® Cortex®-M23 Ultra-Low power General Purpose Microcontroller
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.
Key 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
Applications
- Audio streaming devices
- PC/POS system peripherals
- General purpose systems
- IoT devices
- Industrial automation and sensors
- Consumer applications
- Home appliances
- Building automation
- Medical & healthcare devices
- Wearable devices
Renesas RA2T1 group
64MHz Arm® Cortex®-M23 Motor Control Microcontroller
The RA2T1 group microcontroller is optimized for single motor control applications, based on a 64MHz Arm® Cortex®-M23 core. Featuring PWM timer and advanced analog, including 3 sample-and-hold circuits integrated in the A/D converter, it is suitable for efficient low-end motor control applications such as power tools, fans, and home appliances. Supporting a wide operating range of 1.6V to 5.5V and offered in a compact 24-pin QFN package, the RA2T1 meets the needs of cost-sensitive and space-constrained designs.
The RA2T1 group supports the Flexible Software Package (FSP) and partner ecosystems, enabling scalable software development. A comprehensive development environment is available to accelerate design and evaluation, including an evaluation board (Fast Prototyping Board) for prototype development, and an evaluation kit (MCK-RA2T1) that supports quick motor control evaluation.
Key features
- 64MHz Arm® Cortex®-M23
- 64KB flash memory and 8KB SRAM
- 2KB data flash memory to store data as in EEPROM
- Scalable from 24-pin to 48-pin with LQFP \& HWQFN packages
- PWM timer
- 12-bit A/D converter with 3 sample-and-hold circuits
- High-speed comparator
- SCI (UART, Simple SPI, Simple I2C), SPI, I2C
- Wide voltage range of 1.6V to 5.5V
- Wide operating temperature range from -40 to 125°C
- Safety functions
Applications
- Power tools & industrial applications
- Home appliances
- Building system
- Office equipment
- Commercial equipment
Resources
Meet RA MCUs for Motor Control
Renesas RA delivers scalable Arm‑based performance with power efficiency, fast development, and simple migration from RA2T to RA8T.