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The RA2A1 Group of microcontrollers (MCUs) uses a high-performance Arm® Cortex®-M23 core and offers highly integrated, high-accuracy analog capabilities. This group of ICs offers a 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 a 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.

Features

  • 48MHz Arm® Cortex®-M23
  • 256kB Flash memory and 32kB SRAM
  • 8kB Data Flash to store data as in EEPROM
  • Scalable from 32-pin to 64-pin packages
  • Capacitive touch sensing unit
  • 16-bit SAR A/D, 24-bit SD A/D
  • 12-bit D/A, 8-bit D/A
  • OPAMP (3ch), ACMP-HS/LP
  • USB 2.0 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

descriptionDocumentation

Title language Type Format File Size Date
star Renesas RA2A1 Group Datasheet Datasheet PDF 1.22 MB
star - Renesas RA2A1 Group Datasheet Datasheet PDF 1.22 MB
star - Renesas RA2A1 Group Datasheet Datasheet PDF 1.22 MB
star Renesas RA2A1 Group User's Manual: Hardware 日本語 Manual - Hardware PDF 15.97 MB
E2 Emulator, E2 Emulator Lite Additional Document for User's Manual (Notes on Connection of RA Devices) Rev.3.00 日本語 Manual - Development Tools PDF 641 KB
Renesas e² studio 2021-04 or higher User's Manual: Quick Start Guide 日本語 Manual - Development Tools PDF 7.24 MB
EK-RA2A1 v1 - User's Manual 日本語 Manual - Development Tools PDF 3.31 MB
Renesas Flash Programmer V3.06 Flash memory programming software User's Manual 日本語 Manual - Development Tools PDF 1.00 MB
Renesas Flash Programmer Sample Circuit for Programming by Using a PC's Serial Port 日本語 Manual - Development Tools PDF 1.14 MB
star - Renesas RA2A1 Group User's Manual: Hardware 日本語 Manual - Hardware PDF 15.97 MB
star - Renesas RA2A1 Group User's Manual: Hardware 日本語 Manual - Hardware PDF 15.97 MB
- Errata for User's Manual: Hardware for accessing data flash without using a device driver Technical Update PDF 125 KB
- Errata for User's Manual: Hardware for HOCO (TN-RA-A0005A/E) 日本語 Technical Update PDF 113 KB
- Errata for User's Manual: Hardware for accessing data flash without using a device driver Technical Update PDF 125 KB
- Errata for User's Manual: Hardware for HOCO (TN-RA-A0005A/E) 日本語 Technical Update PDF 113 KB
RA2A1 Group, RA4M1 Group, RA4W1 Group, numbers of IO ports 日本語 Technical Update PDF 168 KB
RA2A1 Group, RA2L1 Group, RA2E1 Group, RA4M1 Group, RA4W1 Group, addition of SPI Data Control Register (SPDCR) bit 日本語 Technical Update PDF 460 KB
RA2A1 Group, RA4M1 Group, RA4W1 Group, RA6M1 Group, RA6M2 Group, RA6M3 Group, addition of CTSU register bits (CTSUERRS) 日本語 Technical Update PDF 497 KB
RA2A1 Group, RA4M1 Group, RA4W1 Group, correction of Clock generation circuit specifications for the clock sources 日本語 Technical Update PDF 112 KB
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
RA family, Addition of register definition for Flash 日本語 Technical Update PDF 139 KB
Errata for User's Manual: Hardware for HOCO (TN-RA-A0005A/E) 日本語 Technical Update PDF 113 KB
Errata for User's Manual: Hardware for accessing data flash without using a device driver Technical Update PDF 125 KB
Errata for User's Manual: Hardware regarding the overview Technical Update PDF 86 KB
RA Family, RL78 Family, RX Family, Renesas Synergy™ Platform CTSU Self Test Software Application Note PDF 2.37 MB
Injection current to prevent damage to MCU Application Note PDF 83 KB
Renesas RA Family Flash Memory Programming Application Note PDF 1.83 MB
Renesas RA Family System Specifications for Standard Boot Firmware Application Note PDF 747 KB
EK-RA2A1 Example Project Bundle
Related Files: Sample Code
Application Note PDF 84 KB
FS2012 Sample application
Related Files: Sample Code
日本語 Application Note PDF 2.87 MB
HS300x Sample application
Related Files: Sample Code
日本語 Application Note PDF 3.41 MB
ZMOD4xxx Sample application
Related Files: Sample Code
日本語 Application Note PDF 4.09 MB
RA2 Quick Design Guide Application Note PDF 1.19 MB
QE for AFE[RA] Analog Front End Tuning Guide
Related Files: Sample Code
日本語 Application Note PDF 5.88 MB
RA2A1 Groupe Board Control Program for 'QE for AFE'
Related Files: Sample Code
日本語 Application Note PDF 1.02 MB
Integrated Development Environment e² studio: How to use CUnit in e² studio Rev.1.01 日本語 Application Note PDF 1.00 MB
Integrated Development Environment e² studio: How to use EGit in e² studio Rev.1.01 日本語 Application Note PDF 1.79 MB
Secure Bootloader for RA2 MCU Series – Application Project
Related Files: Sample Code
Application Note PDF 1.08 MB
Renesas RA Security Design with Arm® TrustZone® - IP Protection
Related Files: Sample Code
简体中文 Application Note PDF 2.67 MB
RA Family IEC 60730/60335 Self Test Library for RA MCU (CM4_CM23)
Related Files: Sample Code
日本語 Application Note PDF 1.73 MB
Securing Data at Rest Utilizing the Renesas Security MPU
Related Files: Sample Code
Application Note PDF 1.48 MB
RA2A1 Weight Measurement Example Using a Load Cell
Related Files: Sample Code
Application Note PDF 727 KB
RA Azure IoT Cloud Connectivity Solution
Related Files: Sample Code
Application Note PDF 1.78 MB
Renesas RA Securing Data at Rest Using the Arm® TrustZone®
Related Files: Sample Code
Application Note PDF 870 KB
Migrating Projects to New FSP Version Application Note PDF 645 KB
EK-RA2A1 Example Project Overview
Related Files: Sample Code
Application Note PDF 89 KB
RA Family Using QE and FSP to Develop Capacitive Touch Application 日本語 Application Note PDF 963 KB
16-Bit A/D Converter Performance for RA2A1 日本語 Application Note PDF 297 KB
24-Bit Sigma-Delta A/D Converter Performance for RA2A1 日本語 Application Note PDF 598 KB
Best Practices for Analog PCB Layout Using RA2A1 MCU 日本語 Application Note PDF 309 KB
The Benefits of Using RA2A1 MCUs in Measurement Systems 日本語 White Paper PDF 805 KB
Security for the Connected World 日本語, 简体中文 White Paper PDF 169 KB
How to Solve the 6 Top Security Challenges of Embedded IoT Design 日本語 White Paper PDF 1.38 MB
Unification of a JEDEC tray and a embossed carrier tape for LQFP package (Additional Information & Correction) 日本語 Product Change Notice PDF 4.86 MB
Unification of a JEDEC tray and a embossed carrier tape for LQFP package ( PC-WRP-A001B/E ) 日本語 Product Change Notice PDF 3.74 MB
Unification of a JEDEC tray and a embossed carrier tape for LQFP package ( PC-WRP-A001A/E ) 日本語 Product Change Notice PDF 1.46 MB
[Notification] Flash Programmer Survey Invitation 日本語 Tool News - Notification PDF 29 KB
[Upgrade to revision] Programming GUI for PG-FP6 Flash Memory Programmer (FP6 Terminal) V1.05.01 日本語 Tool News - Release PDF 57 KB
[Upgrade to revision] Renesas Flash Programmer V3.08.01 日本語 Tool News - Release PDF 81 KB
[Upgraded to version] e² studio 2021-01 日本語 Tool News - Release PDF 159 KB
[Upgrade to revision] Programming GUI for PG-FP6 Flash Memory Programmer (FP6 Terminal) V1.05.00 日本語 Tool News - Release PDF 72 KB
[Upgrade to revision] Renesas Flash Programmer V3.08.00 日本語 Tool News - Release PDF 83 KB
[Upgrade to revision] Solution Toolkit QE for Capacitive Touch[RA] V1.2.0: Development Assistance Tool for Capacitive Touch Sensor 日本語 Tool News - Release PDF 105 KB
[Upgraded to version] e² studio 2020-10 日本語 Tool News - Release PDF 160 KB
[Upgrade to revision] Programming GUI for PG-FP6 Flash Memory Programmer (FP6 Terminal) V1.04.02 日本語 Tool News - Release PDF 74 KB
[Upgrade to revision] Renesas Flash Programmer V3.06.02 日本語 Tool News - Release PDF 80 KB
[Upgraded to version] e² studio 2020-07 日本語 Tool News - Release PDF 159 KB
[Upgrade to revision] Programming GUI for PG-FP6 Flash Memory Programmer (FP6 Terminal) V1.04.01 日本語 Tool News - Release PDF 73 KB
[Released on the web] e² studio 2020-04 日本語 Tool News - Release PDF 184 KB
[Upgraded to revision] e² studio Integrated Development Environment V7.8.0 日本語 Tool News - Release PDF 194 KB
[Upgrade to revision] Solution Toolkit QE: Development Assistance Tool for Applications QE for Capacitive Touch[RA] V1.1.0: Development Assistance Tool for Capacitive Touch Sensor 日本語 Tool News - Release PDF 484 KB
[Upgrade to revision] Programming GUI for PG-FP6 Flash Memory Programmer (FP6 Terminal) V1.04.00 日本語 Tool News - Release PDF 642 KB
[Upgrade to revision] e² studio Integrated Development Environment V7.7.0 日本語 Tool News - Release PDF 128 KB
[Upgrade to revision] e² studio Integrated Development Environment V7.6.0 日本語 Tool News - Release PDF 253 KB
[Released on the Web] Solution Toolkit QE: Development Assistance Tool for Applications QE for Capacitive Touch[RA] V1.0.0: Development Assistance Tool for Capacitive Touch Sensor 日本語 Tool News - Release PDF 864 KB
[Upgrade to revision] Programming GUI for PG-FP6 Flash Memory Programmer (FP6 Terminal) V1.03.03 日本語 Tool News - Release PDF 109 KB
[Upgrade to revision] Renesas Flash Programmer V3.06.01 日本語 Tool News - Release PDF 79 KB
RA Family Brochure 日本語 Brochure PDF 4.77 MB
Industrial Automation Brochure 日本語, 简体中文 Brochure PDF 7.93 MB
Building Automation Brochure 日本語 Brochure PDF 6.65 MB
Certification: Software for capacitive touch sensor RA Certificate PDF 143 KB
[Flyer] E2Emulator[RTE0T00020KCE00000R] 日本語, 简体中文 Flyer PDF 381 KB
Renesas Software and Tools Flash Memory Programmer PG-FP6 日本語, 简体中文 Flyer PDF 417 KB
RA2A1 Group Flyer 日本語 Flyer PDF 333 KB
Renesas RA Family of 32-bit MCUs with Arm® Cortex®-M Core Flyer 日本語 Flyer PDF 391 KB
Semiconductor Reliability Handbook 日本語 General Reliability Literature PDF 14.70 MB
Semiconductor Package Mount Manual 日本語, 简体中文 Other PDF 10.28 MB
An Introduction to Renesas Advanced (RA) MCU Kits Presentation PPSX 35.87 MB
e² studio 2021-10 Release Note Release Note PDF 2.96 MB
QE for Capacitive Touch V2.0.0 Release Note Rev.2.00 日本語 Release Note PDF 161 KB
QE for AFE[RA] V1.1.0 Release Note Rev.1.00 日本語 Release Note PDF 439 KB
QE for Capacitive Touch[RA,RL78,Synergy] V1.4.1 Release Note 日本語 Release Note PDF 146 KB
e² studio 2021-07 Release Note Release Note PDF 3.00 MB
QE for Capacitive Touch[RA,RL78,Synergy] V1.4.0 Release Note 日本語 Release Note PDF 172 KB
QE for Capacitive Touch [RA, RL78] V1.3.0 Release Note 日本語 Release Note PDF 138 KB
QE for AFE[RA] V1.0.0 Release Note 日本語 Release Note PDF 252 KB
QE for Capacitive Touch [RA] V1.2.0 Release Note 日本語 Release Note PDF 311 KB
e² studio 2020-07 Release Note Release Note PDF 1.52 MB
Renesas Flash Programmer V3.06.02 Release Notes 日本語 Release Note PDF 324 KB
e² studio V7.8.0 Release Note Release Note PDF 1.26 MB
QE for Capacitive Touch[RA] V1.1.0 Release Note 日本語 Release Note PDF 133 KB
EK-RA2A1v1 - Design Package 日本語 Schematic ZIP 39.18 MB

file_downloadDownloads

Title language Type Format File Size Date
Segger emWin v614d - Documentation, Tools and Samples Library ZIP 82.99 MB
Segger emWin v614a - Documentation, Tools and Samples Library ZIP 79.34 MB
QE for Capacitive Touch [RA] V1.1.0: Development Assistance Tool for Capacitive Touch Sensor 日本語 Software & Tools - Other ZIP 3.40 MB
e² studio 2021-04 Linux Host 日本語 Upgrade - IDE XZ 586.56 MB
e² studio 2021-01 installer for Windows 日本語 Upgrade - IDE EXE 1,637.73 MB
EK-RA2A1 Example Project Bundle - Sample Code
Related Files: Application Note
Sample Code ZIP 4.88 MB
FS2012 Sample application - Sample Code 日本語 Sample Code ZIP 39.46 MB
- FS2012 Sample application 日本語 Application Note PDF 2.87 MB
HS300x Sample application - Sample Code 日本語 Sample Code ZIP 97.25 MB
- HS300x Sample application 日本語 Application Note PDF 3.41 MB
ZMOD4xxx Sample application - Sample Code 日本語 Sample Code ZIP 152.64 MB
- ZMOD4xxx Sample application 日本語 Application Note PDF 4.09 MB
QE for AFE[RA] Analog Front End Tuning Guide Rev.1.00 - Sample Code 日本語 Sample Code ZIP 5.51 MB
- QE for AFE[RA] Analog Front End Tuning Guide 日本語 Application Note PDF 5.88 MB
RA2A1 Groupe Board Control Program for 'QE for AFE' Rev.1.40 - Sample Code Sample Code ZIP 4.97 MB
- RA2A1 Groupe Board Control Program for 'QE for AFE' 日本語 Application Note PDF 1.02 MB
Secure Bootloader for RA2 MCU Series – Application Project - Sample Code Sample Code ZIP 1.13 MB
- Secure Bootloader for RA2 MCU Series – Application Project Application Note PDF 1.08 MB
Renesas RA Security Design with Arm® TrustZone® - IP Protection Rev.1.10 - Sample Code
Related Files: Application Note
Sample Code ZIP 2.61 MB
RA Family IEC 60730/60335 Self Test Library for RA MCU (CM4_CM23) Rev.1.00 - Sample Code 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 Application Note PDF 1.73 MB
RA2A1 Weight Measurement Example Using a Load Cell Rev.1.00 - Sample Code Sample Code ZIP 1.80 MB
- RA2A1 Weight Measurement Example Using a Load Cell Application Note PDF 727 KB
Securing Data at Rest Utilizing the Renesas Security MPU Rev.1.30 - Sample Code Sample Code ZIP 1.59 MB
- Securing Data at Rest Utilizing the Renesas Security MPU Application Note PDF 1.48 MB
EK-RA2A1 Example Project Overview Rev.1.00 - Sample Code
Related Files: Application Note
Sample Code ZIP 2.28 MB

select_allSoftware & Tool Pages

Title Type Description Company
E2 emulator Lite [RTE0T0002LKCE00000R] Emulator On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RL78, RX] Renesas
E2 emulator [RTE0T00020KCE00000R] Emulator On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RH850, R-Car D1, RL78, RX] Renesas
e² studio IDE and Coding Tool Eclipse-based Renesas integrated development environment (IDE).
[Support MCU/MPU: RA, RE, RX, RL78, RH850, Renesas Synergy, RZ]
(Note: You need to install compiler separately as an additional software)
(Note: No separate e² studio installation required for RA FSP, this will be installed as part of the FSP with e² studio installer (Platform Installer) on GitHub.)
Renesas
E2 Emulator (With Programming Function) Programmer (Unit/SW) On-chip debugging emulator available as a flash memory programmer [Available flash programming software: Renesas Flash Programmer] [Support MCU/MPU and devices: RE, RX, RL78, RH850, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver] Renesas
E2 Emulator Lite (With Programming Function) Programmer (Unit/SW) On-chip debugging emulator available as a flash memory programmer [Available flash programming software: Renesas Flash Programmer] [Support MCU/MPU and devices: RX, RL78, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver] Renesas
PG-FP6 Programmer (Unit/SW) Flash memory programmer [Programming software: Dedicated GUI-based software, the "FP6 Terminal"] [Support MCU/MPU and devices: RA, RE, RX, RL78, RH850, Renesas Synergy, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver, SuperH RISC engine, V850, 78K, R8C] Renesas
Renesas Flash Programmer (Programming GUI) Programmer (Unit/SW) Flash memory programming software [Support MCU/MPU and devices: RA, RE, RX, RL78, RH850, Renesas Synergy, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver, V850, 78KR, 78K0] Renesas
Sensor Software Sensor Middleware (FIT module and FSP module) and sample software packages that enable control and data acquisition for Renesas sensor products.
Renesas
Flexible Software Package (FSP) Software Package FSP is an enhanced software package designed to provide easy-to-use, scalable, high-quality software for embedded system designs using Renesas RA Family of Arm Microcontrollers.
Note: FSP with e² studio Installer (Platform Installer) will install the e² studio tool, FSP packs, GCC toolchain and Segger J-Link drivers required to use this software. No additional installations are required.
Renesas
QE for AFE: Development Assistance Tool for Analog Front End Solution Toolkit QE for AFE [RA] is a development assistance tool that supports development of an embedded system that performs high-precision sensing using MCUs containing analog front end (AFE). Renesas
QE for Capacitive Touch: Development Assistance Tool for Capacitive Touch Sensors Solution Toolkit In developing embedded system using the capacitive touch sensor of RA family and RX family MCUs, you can easily setup initial configurations of the touch interface as well as process the tuning of sensors, and reduce development time. [Plugin for Renesas IDE "e2 studio"]
Renesas
RA Smart Configurator Solution Toolkit The Renesas RA Smart Configurator (RA SC) is a desktop application that helps you in configuring software systems (including a Board Support Package (BSP), drivers, RTOS, and middleware) for RA-Family MCUs when you are using a third-party IDE and toolchain. Renesas

memoryBoards & Kits

Part Number Title Type Company
EK-RA2A1 Evaluation Kit for RA2A1 MCU Group Evaluation Renesas

Pin Count / Memory Size

Flash: 256kB
RAM: 32kB
Pin Count
Package
Size
Pitch
32-pin
LQFP
7x7mm
0.8mm
36-pin
BGA
5x5mm
0.8mm
40-pin
QFN
6x6mm
0.5mm
48-pin
QFN
7x7mm
0.5mm
64-pin
LQFP
10x10mm
0.5mm