Overview
Description
The Renesas RX65N is a mainstream RX microcontroller with RXv2 core, large-capacity RAM, and enhanced security, connectivity, and human machine interface (HMI) capabilities.
Features
- RXv2 Core 120MHz operation (34 CoreMark/mA), single-precision FPU
- 2.7V to 3.6V operation
- A wide package lineup: 100-pin to 176-pin
- Equipped with various communication interfaces such as Ethernet, USB, CAN, SD host/slave interface, and quad SPI.
- Program Flash up to 2MB, SRAM up to 640KB
- DualBank function convenient for firmware update*1
- HMI
- TFT-LCD controller and 2D drawing engine can reduce CPU load at running of LCD display.*1
Security
- NIST FIPS 140-2 Level 3 CMVP certification*1
- Equipped with Renesas' proprietary hardware secure IP (Trusted Secure IP) that realizes a high level of root-of-trust*1
- Equipped with various encryption engines: AES, TRNG, TDES*1, RSA*1, ECC*1, SHA*1
- Equipped with memory protect functions that protect Flash memory from unintended access to flash
[*1: Only products with 1.5MB or more code flash memory]
NIST: National Institute of Standards and Technology
FIPS: Federal Information Processing Standards
CMVP: Cryptographic Module Validation Program
Comparison
Applications
Design & Development
Software & Tools
Sample Code
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
Support Communities
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RX65N Envision Kit - Difference between revision 7 and 8
Hello, there are different RX65N Envision Kits in the market: With serial number 7xxxxxx and 8xxxxxx (the white label between X3 and the display connector). I have applications running on version '7' boards but not on version '8' boards. From what I have seen within the online documentation the version ...
Apr 15, 2020 -
RX65N emwin problem display image with transparent background
Hi all. I have been having a problem with graphics on an RX65N for several days. I generate the screens with AppWizardRenesas_V140f_634g but with both personal and default images (like the arrow at the bottom of the dropdown) in the screen they look bad and with wrong colors ...
Jun 5, 2025 -
to find the data sheet RX65N Group RX651 Group
Can anyone give this datasheet English version, in Japanese version have the 2763 pages, I need that English version
Nov 7, 2019
FAQs
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What is the difference between the Renesas RX65N Cloud Kit and the RX65N Wi-Fi Cloud Connectivity Kit which was released in 2017?
Compared to the RX65N Wi-Fi Cloud Connectivity Kit launched in 2017, this enhanced low-cost kit combines a qualified RX65N MCU with FreeRTOS connected to AWS with additional hardware, software, and handy-tools. [Tags] FAQNo:2000624, JFAQNo:2000624, CFAQNo:2000624
Feb 25, 2020 -
RA Family: What can I do with the CK-RA6M5 or CK-RX65N IoT evaluation kit?
The CK-RA6M5 or CK-RX65N offers the RYZ014A, a Renesas CAT M1 module, as connectivity. In addition, it has a number of environmental sensors for indoor, outdoor, temperature, and humidity, as well as inertial, barometric, SpO2, and Mems microphones ideal for evaluating IoT devices. The provided software enables end ...
Jun 9, 2022 -
Getting Renesas Starter Kit+ for RX65N-1MB Boot Loader Sample Project
... The RX65N Renesas Starter Kit Sample Code is also available from the Renesas Starter Kit+ for RX65N download page.https://www.renesas.com/products/microcontrollers-microprocessors/rx-32-bit-performance-efficiency-mcus/rx65n-1mb-starter-kit-plus-renesas-starter-kit-rx65n-1mb#documents
Apr 21, 2020
Videos & Training
The Renesas RX65N Cloud Kit is a cloud communication performance evaluation kit that uses the RX65N microcontroller and can connect via Wi-Fi to Amazon Web Services (AWS). It provides an ideal evaluation environment for developers and supports the start of IoT device development by users.
The kit includes a Wi-Fi communication module, a temperature/humidity sensor, an optical sensor, a 3-axis accelerometer, a USB port for serial communications, and another USB port for debugging. The sensor and other data that is uploaded from the kit to AWS can be observed in the dashboard. The program can also be edited or debugged in Renesas' e² studio integrated development environment (IDE), by connecting the kit to a PC.