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
Description
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.
Parameters
| Attributes | Value |
|---|---|
| Main CPU | Arm Cortex-M23 |
| Program Memory (KB) | 32, 64 |
| RAM (KB) | 16 |
| Carrier Type | Bulk (Tray), Full Carton (Tray), Full Tray (Tray), Tape & Reel |
| Supply Voltage (V) | 1.6 - 5.5 |
| I/O Ports | 26, 40 |
| DRAM I/F | No |
| Temp. Range (°C) | Ta = -40 to +85, Ta = -40 to +105 |
| Operating Freq (Max) (MHz) | 48 |
| 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) | 3, 4 |
| SPI (ch) | 1 |
| I2C (#) | 1 |
| CAN (ch) | 0 |
| 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 |
| 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 |
Application Block Diagrams
 | Electric Toothbrush with UV Sanitation An electric toothbrush with UV sanitization and NFC brush authentication. |
Additional Applications
- General Purpose
- IoT Devices
- Industrial Automation, Industrial Sensors
- Consumer Applications
- Home Appliances
- Building Automation
- Medical & Healthcare
- Wearable Devices
This video guides first-time users of the RA family using the Fast-Prototyping Board through the steps of installing a development environment, generating a project, and checking the operation to develop software.
The guide features the FPB-RA0E1 (Debugger: J-Link ARM) as a practical example.
Related Resources
Additional Videos
Events & Webinars
News & Blog Posts
Blog Post Dec 5, 2023 |
Blog Post Oct 13, 2022 |
Blog Post Jan 28, 2022 |