Overview
Description
The RA4E2 entry-line microcontroller is based on the 100 MHz Arm® Cortex®-M33 core with TrustZone.
RA4E2 MCUs offer high-performance and optimized peripheral functions along with the smallest package options, including space-saving 36-pin BGA and 32-pin QFN packages. These satisfy the needs of both cost-sensitive and space-constrained applications.
The RA4E2 provides an entry point to the wider RA family due to its well-balanced performance, advanced peripheral functions, and scalability.
Features
- 100MHz Arm Cortex-M33 with TrustZone
- 128KB Flash memory and 40KB SRAM
- 4KB Data Flash to store data as in EEPROM
- 1KB Standby SRAM
- Scalable from 32-pin to 64-pin packages
- USB 2.0 Full Speed
- CAN FD, I3C
- HDMI CEC, SSI
- 12-bit A/D Converter
- 12-bit D/A Converter
- General PWM Timer
Comparison
Applications
Design & Development
Software & Tools
Sample Code
Sample Code
Filters
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Type | Title | Date Date |
Sample Code |
[Software=RA FSP],[Board=EK-RA4E2]
ZIP
14.88 MB
IDE:
e2 studio/GCC/AC6, IAR, Keil MDK
|
|
Sample Code |
[Software=RA FSP|v4.2.0]
ZIP
7.74 MB
Compiler:
GNUARM-None
IDE:
e2 studio
|
|
Sample Code | ZIP 6.08 MB 日本語 Compiler: GNU ARM Embedded, ICCARM Function: Security IDE: e2 studio, IAR EWARM | |
Sample Code | ZIP 845 KB | |
Sample Code | ZIP 4.87 MB | |
Sample Code | ZIP 3.88 MB | |
6 items
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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
Renesas Academy
Support Communities
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abnormal I3C waveform when accessing from EK-RA4E2 to EK-RA4E2
i am testing the exmple of i3C communication between 2 EK-RA4E2 with I3C master/I3C slave in github. The example demo the I3C slave whole data that the I3C master send. I connect 3.7K resistor on SDA of 2 EK-RA4E2, and the I3C communication works.When ...
Jun 20, 2023 -
RA4E2 I2C Slave Module not working
I'm trying to use the i2c slave module but it doesnt work, i try to start it and make it work but through debug i saw that its not entering the callback, with logic analyser the data is comming to i2c rails but the RA is not recognizing the ...
May 9, 2024 -
EK-RA4E2 I3C Write Command in I2C Mode
Hi, I am using the EK-RA4E2 as I2C Master to send transactions to I2C Slave.I can perform an I2C Read of from I2C slave, but cannot perform an I2C write. An I2C Read consists of:err = R_I3C_Write(&g_i3c0_ctrl, regAddr, 1, false); err = R ...
Aug 26, 2023
FAQs
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RA4E2, RA6E2: New Entry-Line
The RA4E2 and RA6E2 are the 2nd generation Entry-Line MCUs in the RA4 and RA6 series.The RA4E2 and RA6E2 offer new levels of CPU performance and functionality in compact packages, supporting packages as small as 4 mm x 4 mm, while offering the ARM Cortex- M33 core with ...
Mar 14, 2023 -
RA4E2, RA6E2: Small package with USB interface
The RA4E2 and RA6E2 support a 4 mm x 4 mm 36-pin BGA package and so are the smallest RA MCUs that support the USB 2.0 full-speed interface.
Mar 14, 2023 -
RA4E2, RA6E2: Is it possible to set the TrustZone boundaries runtime?
... to be placed in either SCI or USB boot mode. However for the new E-devices like RA4E2 and RA6E2 the Trustzone boundaries can be set runtime by writing to the following registers: Resources: RA4E2 Group User's Manual: Hardware RA6E2 Group User's Manual: Hardware Suitable Products RA4E2,RA6E2
Nov 7, 2024
Videos & Training
An overview of the RA4E2 32-bit MCUs designed for cost-sensitive applications and other systems requiring an optimal combination of performance, low power consumption and small package size.