Features
- 48MHz Arm Cortex-M23
- Up to 128kB Flash memory and 16kB SRAM
- 4kB Data Flash to store data as in EEPROM
- Scalable from 25-pin to 64-pin 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)
Description
The RA2E1 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 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 the RA2L1 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, ARM Cortex-M23 |
| Program Memory (KB) | 32, 64, 128 |
| 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 | 21, 26, 30, 40, 56 |
| 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, 10, 11, 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) | 8, 10, 12, 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) | 10, 11, 14, 20, 30 |
| Image Codec | No |
| Segment LCD Controller | No |
| Security & Encryption | Unique ID, TRNG, AES |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| HWQFN | 5 x 5 x 0.8 | 32 | 0.5 |
| HWQFN | 7 x 7 x 0.8 | 48 | 0.5 |
| HWQFN | 8 x 8 x 0.8 | 64 | 0.4 |
| LFQFP | 7 x 7 x 1.7 | 32 | 0.8 |
| LFQFP | 7 x 7 x 1.7 | 48 | 0.5 |
| LFQFP | 14 x 14 x 1.7 | 64 | 0.8 |
| LFQFP | 10 x 10 x 1.7 | 64 | 0.5 |
| LQFP | 7 x 7 x 1.7 | 32 | 0.8 |
| LQFP | 14 x 14 x 1.7 | 64 | 0.8 |
| QFN | 8 x 8 x 0.8 | 64 | 0.4 |
| VFBGA | 4 x 4 x 0.99 | 64 | 0.4 |
| WFLGA | 4 x 4 x 0.76 | 36 | 0.5 |
| WLCSP | 2 x 2 x 0.5 | 25 | 0.4 |
Application Block Diagrams
| Cordless Brushless Drill Cordless brushless drill designs delivering power, precision, and connectivity. | |
| Automatic Espresso Maker with Digital Controls AI-powered espresso machine with a large touchscreen and smart cloud connectivity. | |
| Air Fryer Toaster Oven with Digital Controls Smart air fryer design supports sensors and uses touch HMI to deliver fast, healthy, perfectly cooked meals. | |
| Portable Power System Portable power system with 240W USB-C, 3.6KW bi-directional charging, and digital control. | |
| Battery-Powered Camera with AI Object Detection & Motion Sensing Battery-powered camera with AI for efficient motion detection, fast boot, and low-power object classification. | |
| 20-28 Cell Battery Pack (Up to 118V) Scalable 20-28 cell battery pack design with optional Bluetooth connectivity. | |
| Infusion Level Monitor Using Capacitive Touch Sensing Infusion monitors track fluid levels, offering reliable alerts for diverse liquid tank applications. | |
| Dimming System for Monitors Dimming system for monitors featuring QR flyback, DC/DC buck, LDO, and MCU for precise backlight control. | |
| IO-Link Sensors This system enables smart sensor control via IO-Link communication. | |
| Touchless Button Touchless button design using capacitive sensing ensures hygiene and reliability in varied settings. | |
| Smart Lock with Ultra-Low Power Wi-Fi & Bluetooth Low Energy Low-power smart lock system enabling secure, wireless control with fingerprint support. | |
| Triac-Based Motor Controller Triac-based motor controllers offer cost-effective, reliable AC motor control with easy integration for small systems. | |
| Smart Range Hood Enhanced touch controls and advanced MCUs deliver superior functionality and innovation for smart range hoods. | |
| Wi-Fi-Connected Furnace Controller Wi-Fi-connected furnace controller with precise sensing, safety compliance, and remote monitoring for modern HVAC systems. |
Additional Applications
- General purpose
- Consumer applications
- Home appliances
- Industrial automation
- Building automation
- Medical and healthcare
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