Overview
Description
The RA2A1 group is a high-performance, low-power analog microcontroller based on an Arm® Cortex®-M23 core with a 48MHz clock frequency and a wide range of analog front ends, including two types of A/D converters. This group supports a 16-bit SAR A/D converter, a 24-bit sigma-delta A/D converter, a 12-bit D/A converter, comparators, and operational amplifiers. These functions are suitable for applications that measure and adjust sensor signals with high accuracy. In addition, UART, I2C, simple SPI, CAN, and USB 2.0 Full-Speed are also integrated as peripheral functions, enabling easy communication with other devices. The RA2A1 supports a wide operating voltage range of 1.6V to 5.5V, enabling communication with devices operating at 5V without level shifters. The RA2A1 MCU targets industrial sensor applications with low power consumption and low-cost advantage.
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)
Comparison
Applications
Design & Development
Software & Tools
Sample Code
Sample Code
Filters
|
||
|---|---|---|
| Type | Title | Date Date |
| Sample Code | ZIP 4.18 MB | |
| Sample Code |
[Software=RX Driver Package|V2.20;RA Flexible Software Package|v5.3.0],[Toolchains=CC-RL|V1.13.00;CC-RX|V3.06.00;GNU Arm Embedded|13.2.1.arm-13-7]
ZIP
16.10 MB
日本語
Application:
Consumer Electronics
Compiler:
CC-RL, CC-RX, GNU ARM Embedded
Function:
Application Example, HMI
IDE:
e2 studio
|
|
| Sample Code | ZIP 10.37 MB 日本語 Compiler: GNU Arm Embedded, IAR Compiler for Arm Function: Security IDE: e2 studio, IAR EWARM | |
| Sample Code |
[Toolchains=GCC Arm Embedded|10.3.1.20210824] [Software=RA FSP] [Board=EK-RA2E1]
ZIP
15.03 MB
Compiler:
GNU Arm Embedded
IDE:
e2 studio
|
|
| Sample Code |
This application project discusses the considerations for securing Data at Rest in an embedded system and provides guidelines on how to use the Security MPU hardware feature of the RA Family MCUs to implement a secure Data at Rest solution.
ZIP
2.66 MB
Compiler:
ARMCC
IDE:
e2 studio
|
|
| Sample Code | ZIP 1.80 MB | |
|
6 items
|
||
Boards & Kits
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.
Support
Support Communities
Get quick technical support online from Renesas Engineering Community technical staff.
Support Communities
-
RA2A1
Hi, I am using the RA2A1 (FSP 2.1.0) and I have to implement a USB interface with 2 devices (CDC and HID) besides the already existing functionalities. I know how to implement a USB CDC interface with the FSP and it works without problems.Now I have looked ...
Jan 13, 2021 -
RA2A1 USB PHID Mode cannot work with some Windows computer
Hi, I am using EK-RA2A1 development board to test the USB PHID function, but when i test in my computer, the board didn't work. The device management just refresh but didn't add a new Keyboard device. I was so confused, so i try to connect the board ...
Feb 23, 2022 -
RA2A1 Weight Measurement Example Using a Load Cell
Hi there, where can I find the code to this example? https://www.renesas.com/us/en/document/apn/ra2a1-weight-measurement-example-using-load-cell br joachim
Dec 31, 2023
FAQs
-
RA2A1: Differential input voltage range of 24-Bit-Sigma-Delta A/D Converter
No. The voltage input range of -0.7V≦ANSDnP≦0.8V in the above case. The input range may cause current flow or affect the accuracy depending on PGA configurations, so use it within the -0.8V/Gtotal～0.8V/Gtotal range.
Apr 28, 2021 -
RA2A1: Output Port Setting Using 16-Bit-A/D Converter
Please confirm “Port Setting when Using the 16-bit A/D Converter Input” of User’s Manual: Hardware.When using the 16-bit A/D converter, do not use PORT0 and PORT5 as general I/O, peripheral functions I/O, and IRQn inputs. Also, when using ...
Apr 28, 2021 -
RA2A1, RA4M1, RA4W1: Can A/D conversion be performed on other analog input?
No. When temperature sensor output or internal reference voltage is selected, please select single-scan mode, remove all analog inputs from conversion target, and perform A/D conversion.
Apr 28, 2021
Videos & Training
Easily tune and evaluate a microcontroller (MCU) with built-in analog front end (AFE) without external measuring equipment or developing software for AFE evaluation.
