Features
- 32MHz Arm Cortex-M23 core
- Up to 128KB Flash and 16KB SRAM
- 2KB data flash memory (100,000 program / erase (P/E) cycles)
- 32-pin, 48-pin, and 64-pin package options
- Wide operating temperature range from -40 to 125°C
- Wide voltage range of 1.6V to 5.5V
- +-1% high-accuracy high-speed on-chip oscillator
- TAU (16-bit general PWM timer)
- TML32 (32-bit interval timers)
- RTC
- 12-bit A/D converter
- Temperature sensor
- SAU (UART, Simplified SPI, Simplified I2C)
- UART
- I2C bus
- Random number generator
- Safety functions
- Flexible power architecture with fast wake-up
- Best-in-class HAL driver code
- Supports Arm ecosystem and Renesas original development tools
Description
The RA0E2 group is a basic, simple microcontroller (MCU) in the entry line of the RA0 series, offering excellent cost-effectiveness and ultra-low power consumption. In addition, it is a ROM/PIN extension product of the RA0E1 group, with which it is highly compatible. It delivers up to 32MHz of CPU performance using an Arm® Cortex®-M23 core with up to 128KB of embedded flash memory, 16KB SRAM, and a wide operation temperature range from -40 to 125°C. The RA0 series is ideal for cost-sensitive applications such as low power and lower cost for consumer electronics, system control for small appliances, industrial system control, and building automation.
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 | 29, 44, 60 |
| DRAM I/F | No |
| Temp. Range (°C) | Ta = -40 to +105, Ta = -40 to +125 |
| Operating Freq (Max) (MHz) | 32 |
| Ethernet speed | No |
| EtherCat (ch) (#) | 0 |
| USB FS (host ch/device ch) | ( 0 / 0 ) |
| USB HS (host ch/device ch) | ( 0 / 0 ) |
| USB SS (host ch/device ch) | ( 0 / 0 ) |
| SCI or UART (ch) | 4, 6 |
| SPI (ch) | 0 |
| I2C (#) | 0 |
| CAN (ch) | 0 |
| CAN-FD (ch) | 0 |
| Wireless | No |
| SDHI (ch) | 0 |
| High Resolution Output Timer | No |
| PWM Output (pin#) | 7 |
| 32-Bit Timer (ch) | 0 |
| 16-Bit Timer (ch) (#) | 8 |
| Standby operable timer | Yes |
| Asynchronous General Purpose Timer / Interval Timer (ch) | 1 |
| 16-Bit A/D Converter (ch) | 0 |
| 14-Bit A/D Converter (ch) | 0 |
| 12-Bit A/D Converter (ch) | 10, 13, 15 |
| 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
|
Household Water Pump
Smart water pump system with low power use, noise reduction, and enhanced safety for efficient operation.
|
|
Pure Sine Wave Home Inverter with BMS
The high-performance sine wave home inverter system provides stable power, reduces costs, and ensures flexibility.
|
|
Cordless BLDC Hand Blender
Lightweight, versatile cordless hand blender with fast charging, BLDC motor, and multi-speed control.
|
|
Sensor Signal Conditioner to Linearize Results
Sensor signal conditioner for linearizing sensors with minimal MCU load and small footprint.
|
Additional Applications
- General purpose systems
- IoT devices
- Industrial automation and sensors
- Consumer applications
- Home appliances
- Building automation
- Medical & healthcare devices
- Wearable devices
This video introduces the RA0E2 microcontroller, designed for smarter, scalable designs with cost-effectiveness and ultra-low power consumption. Compatible with the RA0E1 group, it features up to 128KB of embedded flash memory and operates efficiently across a wide temperature range. Perfect for applications in consumer electronics, small appliances, industrial systems, and building automation, the RA0E2 delivers reliable performance where it matters most.
Related Resources
Additional Videos
Events & Webinars
News & Blog Posts
News
Apr 22, 2025
|
Blog Post
Apr 22, 2025
|
Blog Post
Oct 13, 2022
|
Blog Post
Jan 28, 2022
|