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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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 -
RA4E2 USB Programing
I saw on the datasheet and forum that there is a way to program the device with USB boot mode, i have a custom board with the usb hooked up but when i use the method of going to boot mode with the MD pin low on reset it doesnt ...
Apr 30, 2024 -
where to find arm_pid_f32 function RA4e2
Hi, I have a RA4e2 project and specify to use the arm CMSIS DSP library as below. However, in CMSIS-DSP/ControllerFunctions folder, I can't find the PI main function arm_pid_f32(). The folder only has its init and reset function. Do you know where to find ...
Oct 26, 2024
FAQs
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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: 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 -
RA Family: ID code protection (in case of protection disabled)
... It defers as follows depending on the address of the OSIS register: In case of RA2L1: S31501010018FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE0S31101010028FFFFFFFFFFFFFFFFFFFFFFFFD0 In case of RA6M3: S3150100A150FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF08 In case of RA4E2: S3150100A120FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF38 Debugger connection in e2 studio (ID code authentication) No ID code setting is required in the debug configuration. Debugger connection in e2 studio ...
Jun 28, 2023
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.