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.

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

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
RA2E1 Group Datasheet 日本語 Datasheet PDF 1.69 MB
User Guides & Manuals
EK-RA2E1 Errata 日本語 Manual PDF 371 KB
EK-RA2E1 – Quick Start Guide 日本語 Quick Start Guide PDF 1017 KB
EK-RA2E1 v1 – User's Manual 日本語 Manual PDF 3.30 MB
RA2E1 Group User's Manual: Hardware 日本語 Manual PDF 10.30 MB
Technical Updates
RA2A1 Group, RA2L1 Group, RA2E1 Group, RA4M1 Group, RA4W1 Group, RA6M1 Group, RA6M2 Group, RA6M3 Group, RA6T1 Group, Note on ALeRASE command 日本語 Technical Update PDF 152 KB
Application Notes & White Papers
RA2E1 Group Sensor & Touchless key demo evaluation tool “Sensor & Touchless key Monitor" 日本語 Application Note PDF 924 KB
RA2E1 Group RA2E1 Sensor & Touchless key Demo Sample Software 日本語 Application Note PDF 771 KB
- RA2E1 Group RA2E1 Sensor & Touchless key Demo Sample Software 日本語 Application Note PDF 771 KB
RA2E1 Group Sensor & Touchless key Demo Board 日本語 Application Note PDF 1.93 MB
- EK-RA2E1 Example Project Bundle Application Note PDF 69 KB
EK-RA2E1 Example Project Bundle Application Note PDF 69 KB
- RA2L1/RA2E1 Group Example of Low Power Application (Data Logger) Application Note PDF 2.45 MB
RA2L1/RA2E1 Group Example of Low Power Application (Data Logger) Application Note PDF 2.45 MB
Getting Started with Low Power Applications for RA2 Group Application Note PDF 1.20 MB
RA Family IEC 60730/60335 Self Test Library for RA MCU (CM4_CM23) 日本語 Application Note PDF 1.73 MB
- RA Family IEC 60730/60335 Self Test Library for RA MCU (CM4_CM23) 日本語 Application Note PDF 1.73 MB
Bring Fast, Accurate Multitouch User Interfaces to Your Designs 日本語, 简体中文 White Paper PDF 660 KB
RA Family Using QE and FSP to Develop Capacitive Touch Application 日本語 Application Note PDF 963 KB
Renesas RA Family Flash Memory Programming Application Note PDF 1.85 MB
Downloads
- RA2E1 Group RA2E1 Sensor & Touchless key Demo Sample Software - Sample Code Sample Code ZIP 2.44 MB
RA2E1 Group RA2E1 Sensor & Touchless key Demo Sample Software - Sample Code Sample Code ZIP 2.44 MB
EK-RA2E1 Example Project Bundle - Sample Code Sample Code ZIP 3.10 MB
- EK-RA2E1 Example Project Bundle - Sample Code Sample Code ZIP 3.10 MB
RA2L1/RA2E1 Group Example of Low Power Application (Data Logger) - Sample Code Sample Code ZIP 2.44 MB
- RA2L1/RA2E1 Group Example of Low Power Application (Data Logger) - Sample Code Sample Code ZIP 2.44 MB
- LPM Application Sample Code ZIP 2.72 MB
- RA Family IEC 60730/60335 Self Test Library for RA MCU (CM4_CM23) 日本語 Sample Code ZIP 8.83 MB
RA Family IEC 60730/60335 Self Test Library for RA MCU (CM4_CM23) 日本語 Sample Code ZIP 8.83 MB
Other
Renesas RA2E1 Group of 32-bit MCUs with Arm® Cortex®-M Core 日本語 Flyer PDF 445 KB
[Flyer] E2Emulator[RTE0T00020KCE00000R] 日本語, 简体中文 Flyer PDF 381 KB
[Flyer] Renesas Software and Tools Flash Memory Programmer PG-FP6 日本語, 简体中文 Flyer PDF 417 KB

Boards & Kits

Part Number Title Type Company
EK-RA2E1 RA2E1 MCU Group Evaluation Kit Evaluation Renesas

Pin Count / Memory Size

Flash: 128kB
RAM: 16kB
Flash: 64kB
RAM: 16kB
Flash: 32kB
RAM: 16kB
     
Pin Count
Package
Size
Pitch
25-pin
WLBGA
2.14x2.27mm
0.4mm
32-pin
LQFP
7x7mm
0.8mm
32-pin
QFN
5x5mm
0.5mm
36-pin
LGA
4x4mm
0.5mm
48-pin
QFN
7x7mm
0.5mm
48-pin
LQFP
7x7mm
0.5mm
64-pin
BGA
4x4mm
0.4mm
64-pin
LQFP
14x14mm
0.8mm
64-pin
LQFP
10x10mm
0.5mm