The RX66N Group microcontrollers feature flash memory that can be read with zero wait states from the CPU, delivering superior real-time performance. They are equipped with the third-generation RX CPU core, the RXv3 core, and these high-performance products operate at 120MHz. Real-time control and networking of equipment are realized with a single chip with 4MB flash memory capable of read operations at 120MHz, 1MB of SRAM and 182 general-purpose I/O ports. The device also supports high-end HMI functionality for advanced display capability. The device also has complete security capability, vital for industrial and consumer equipment today. The RX66N can also contribute to the miniaturization of the housing and the shortening of the development cycle.

Features

  • 120MHz RXv3 core, double-precision FPU, and register bank save function that speeds up interrupt response
  • 4MB flash memory (120MHz read access, dual bank), 1MB SRAM
  • 182 general I/O ports
  • Ethernet, SD Host interface, USB 2.0 Full Speed, 3-channel CAN, QSPI
  • TFT LCD controller, 2D drawing engine, serial sound interface, CMOS camera interface
  • Encryption engines (AES, 3DES, RSA, ECC, SHA, TRNG), key management, flash memory protection
  • Single power supply with operation from 2.7V to 3.6V
  • Operating ambient temperature: -40 to 85°C or -40 to 105°C

Applications

  • Industrial
  • Office Automation
  • Consumer

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
RX66N Group Datasheet 日本語 Datasheet PDF 2.01 MB
User Guides & Manuals
Smart Configurator User's Manual RX API Reference 日本語 Manual PDF 3.34 MB
RX Smart Configurator User's Guide: IAREW 日本語 Manual PDF 2.03 MB
RX66N Group User's Manual: Hardware 日本語 Manual PDF 39.12 MB
RX Family C/C++ Compiler Package (CC-RX) How to Divide Boot and Flash Areas 日本語 Manual PDF 1.73 MB
Renesas e² studio Smart Configurator FreeRTOS Configuration Manual PDF 628 KB
RX Smart Configurator User's Guide: CS+ 日本語 Manual PDF 2.63 MB
RX Smart Configurator User's Guide: e² studio 日本語 Manual PDF 3.29 MB
RTE0T000020KCA10000R User's Manual (20-Pin (1.27-mm Pitch) to 20-Pin (2.54-mm Pitch) Connector Conversion Adapter for the E2 Manual PDF 647 KB
RTE0T00020KCA00000R User's Manual (20-Pin to 14-Pin Conversion Adapter for the E2 emulator) Manual PDF 319 KB
QE for TCP/IP V1.0.1 [technical preview version] 日本語 Manual PDF 93 KB
RX Development Environment Migration Guide Migration from SuperH Family to RX Family (IDE ed.) (High-performance Embedded Workshop to CS+) Guide PDF 1007 KB
RX Development Environment Migration Guide Migration from M16C Family to RX Family (Compiler ed.) (High-performance Embedded Workshop and NC30WA to CS+ and CC-RX) 日本語 Guide PDF 378 KB
RX Development Environment Migration Guide Migration from H8C Family to RX Family (Compiler ed.) (High-performance Embedded Workshop and H8C to CS+ and CC-RX) 日本語 Guide PDF 413 KB
e² studio Integrated Development Environment User's Manual: Getting Started Guide 日本語 Manual PDF 3.04 MB
Real-time OS RI600/4 for RX600 Series Application Note: Application Transition Guide (from HI1000/4 to RI600/4) Guide PDF 371 KB
Real-time OS RI600/4 for RX600 Series Application Note: Application Transition Guide (from M3T-MR30/4 to RI600/4) 日本語 Guide PDF 371 KB
RX Compiler Application Notes: 4-Sample Project RX Migration Guide: M16C Edition 日本語 Guide PDF 926 KB
Technical Updates
RX600 Series, RX700 Series Errata to User's Manual: Hardware Regarding the Realtime Clock (RTC) 日本語 Technical Update PDF 207 KB
Errata to the Section on Electrical Characteristics in the RX66N Group User's Manual: Hardware 日本語 Technical Update PDF 209 KB
Notes on the Transmit Data Empty Interrupt When the FIFO is in Use with the Serial Communications Interface (SCI) 日本語 Technical Update PDF 152 KB
Addition of G Version (Topr = –40 to 105°C) Products to RX72M Group, RX72N Group, RX66N Group, RX65N Group, and RX651 Group 日本語 Technical Update PDF 320 KB
RX Family Note on Rewriting the System Clock Control Register 3 (SCKCR3) 日本語 Technical Update PDF 157 KB
Errata to User's Manual: Hardware Regarding the I2C-bus Interface (RIIC) 日本語 Technical Update PDF 611 KB
Errata to RX66N Group User's Manual: Hardware Rev.1.00 日本語 Technical Update PDF 123 KB
Application Notes & White Papers
RX Family HS300x Relative Humidity and Temperature Sensor Control Module Firmware Integration Technology Application Note 日本語 Application Note PDF 836 KB
- RX Family HS300x Relative Humidity and Temperature Sensor Control Module Firmware Integration Technology Application Note 日本語 Application Note PDF 836 KB
- RX Family CAN API Using Firmware Integration Technology 日本語 Application Note PDF 525 KB
RX family TSIP (Trusted Secure IP) Module Firmware Integration Technology (Binary version) 日本語 Application Note PDF 1.79 MB
- ADC Module Using Firmware Integration Technology 日本語 Application Note PDF 1.14 MB
RTC Module Using Firmware Integration Technology 日本語 Application Note PDF 663 KB
ADC Module Using Firmware Integration Technology 日本語 Application Note PDF 1.14 MB
- RX Family Simple I2C Module Using Firmware Integration Technology 日本語 Application Note PDF 801 KB
- RX Family I2C Bus Interface(RIIC) Module Using Firmware Integration Technology 日本語 Application Note PDF 1006 KB
- RX Family RX Driver Package Ver.1.27 日本語 Application Note PDF 631 KB
RX66N Group Precautions Regarding High-Temperature Operation of RX66N Group 日本語 Application Note PDF 666 KB
- RX Family RSPI Module Using Firmware Integration Technology 日本語 Application Note PDF 592 KB
RX Family Renesas FreeRTOS 日本語 Application Note PDF 991 KB
- RX Family Renesas FreeRTOS 日本語 Application Note PDF 991 KB
Renesas MCU Firmware Update Design Policy 日本語 Application Note PDF 707 KB
- RX Family SCI Module Using Firmware Integration Technology 日本語 Application Note PDF 665 KB
RX Family SCI Module Using Firmware Integration Technology 日本語 Application Note PDF 665 KB
RX Family RX DRW2D Driver 日本語 Application Note PDF 162 KB
- RX Family DMAC Module Using Firmware Integration Technology 日本語 Application Note PDF 352 KB
- RX Family LVD Module Using Firmware Integration Technology 日本語 Application Note PDF 260 KB
RX Family SSI Module Using Firmware Integration Technology 日本語 Application Note PDF 526 KB
- RX Family Read/Write Operations in SDRAM Using the SDRAMC 日本語 Application Note PDF 1.60 MB
RX Family Read/Write Operations in SDRAM Using the SDRAMC 日本語 Application Note PDF 1.60 MB
RX Family Flash Module Using Firmware Integration Technology 日本語 Application Note PDF 1.92 MB
RX Family LPC Module Using Firmware Integration Technology 日本語 Application Note PDF 847 KB
- RX Family Flash ROM Correction 日本語 Application Note PDF 889 KB
- RX Family Using the Trusted Memory Function Application Note PDF 397 KB
- RX ファミリ Trusted Memory 機能の使い方 Application Note PDF 710 KB
Compiler Package Application Note: STL V.1.00.00 Lists of Supported Functions Application Note PDF 280 KB
Compiler Package Application Note: STL V.1.00.00 User's Manual Application Note PDF 478 KB
RX Compiler Application Notes: 2-Compiler Usage Guide: Tips for Efficient Programming Edition Application Note PDF 435 KB
RX Compiler Application Notes: 1-Installation Guide: IDE Startup Guide, RX Edition Application Note PDF 1.04 MB
RX Compiler Application Notes: 2-Compiler Usage Guide: Languages Edition (C89, C99) Application Note PDF 537 KB
RX Compiler Application Notes: 2-Compiler Usage Guide: Option Edition 日本語 Application Note PDF 514 KB
RX Compiler Application Notes: 5-Reference: Data of Library 日本語 Application Note PDF 1019 KB
RX Compiler Application Notes: 2-Compiler Use Guide: #pragma Extension Guide 日本語 Application Note PDF 251 KB
Compiler Package Application Note: Call Walker Application Note PDF 339 KB
Downloads
- RX Family HS300x Relative Humidity and Temperature Sensor Control Module Firmware Integration Technology Application Note Sample Code ZIP 12.00 MB
RX Family HS300x Relative Humidity and Temperature Sensor Control Module Firmware Integration Technology Application Note Sample Code ZIP 12.00 MB
e² studio 2021-01 installer (Offline installer) 日本語 Upgrade - IDE EXE 1,637.73 MB
[Evaluation Software] CS+ for CC V8.05.00 (Single Download) 日本語 Evaluation Software ZIP 719.07 MB
Smart Configurator for RX V2.8.0 日本語 Upgrade - IDE ZIP 328.20 MB
RX Family C/C++ Compiler Package V3 (without IDE) V3.03.00 日本語 Upgrade - Compiler ZIP 22.94 MB
RX Compiler CC-RX V3.03.00 日本語 Upgrade - Compiler ZIP 19.18 MB
CS+ for CC common program V8.05.00 日本語 Upgrade - IDE ZIP 243.98 MB
Differential update program V8.05.00 for CS+ for CC common program V8.02.00 or later 日本語 Upgrade - IDE ZIP 80.87 MB
[Evaluation Software] CS+ for CA,CX V4.05.00 (Single Download) 日本語 Evaluation Software ZIP 483.78 MB
RX Family CAN API Using Firmware Integration Technology Sample Code ZIP 74.49 MB
- RX family TSIP (Trusted Secure IP) Module Firmware Integration Technology (Binary version) 日本語 Sample Code ZIP 280.31 MB
ADC Module Using Firmware Integration Technology Sample Code ZIP 48.58 MB
- RTC Module Using Firmware Integration Technology Sample Code ZIP 18.93 MB
- ADC Module Using Firmware Integration Technology Sample Code ZIP 48.58 MB
RX Family Simple I2C Module Using Firmware Integration Technology Sample Code ZIP 27.49 MB
RX Family I2C Bus Interface(RIIC) Module Using Firmware Integration Technology Sample Code ZIP 41.29 MB
RX Family RX Driver Package Ver.1.27 - Sample Code Sample Code ZIP 198.93 MB
RX Family RSPI Module Using Firmware Integration Technology Sample Code ZIP 25.98 MB
- RX Family Renesas FreeRTOS Sample Code ZIP 2.58 MB
RX Family Renesas FreeRTOS Sample Code ZIP 2.58 MB
RX Family SCI Module Using Firmware Integration Technology Sample Code ZIP 39.06 MB
- RX Family SCI Module Using Firmware Integration Technology Sample Code ZIP 39.06 MB
- RX Family RX DRW2D Driver - Sample Code Sample Code ZIP 1.42 MB
QE for Display V2.0.0: Development Assistance Tool for Display 日本語 Software ZIP 7.73 MB
RX Family DMAC Module Using Firmware Integration Technology Sample Code ZIP 48.21 MB
RX Family LVD Module Using Firmware Integration Technology Sample Code ZIP 56.65 MB
- RX Family SSI Module Using Firmware Integration Technology Sample Code ZIP 2.08 MB
RX Family Read/Write Operations in SDRAM Using the SDRAMC Sample Code ZIP 26.11 MB
- RX Family Read/Write Operations in SDRAM Using the SDRAMC Sample Code ZIP 26.11 MB
- RX Family Flash Module Using Firmware Integration Technology Sample Code ZIP 96.28 MB
- RX Family LPC Module Using Firmware Integration Technology Sample Code ZIP 3.24 MB
RX Family RX Driver Package Ver.1.26 Sample Code ZIP 128.04 MB
- RX Family RX Driver Package Ver.1.26 Sample Code ZIP 128.04 MB
QE for Camera V1.1.1: Development Assistance Tool for Camera 日本語 Software ZIP 2.37 MB
RX Family Flash ROM Correction Sample Code ZIP 11.60 MB
RX Family Using the Trusted Memory Function Sample Code ZIP 2.91 MB
Getting started with RX development environment with CS+ Evaluation Software PDF 3.41 MB
- Sample codes for RX Compiler Package Application Notes: Sample Project RX Migration Guide, SuperH Edition Sample Code ZIP 485 KB
- STL V.1.00.00 Sample Code Sample Code ZIP 277 KB
- Sample codes for RX Compiler Package Application Notes: Sample Project RX Migration Guide, M16C Edition 日本語 Sample Code ZIP 56 KB
Tool News
[Upgrade to revision] e² studio Smart Configurator Plug-in V2.8.0, RX Smart Configurator V2.8.0 日本語 Tool News - Release PDF 155 KB
[Notes] RX Family Memory Access Driver Interface Firmware Integration Technology, RX Driver Package 日本語 Tool News - Note PDF 175 KB
[Released on the Web] RX Family RX Driver Package Ver.1.27 日本語 Tool News - Release PDF 94 KB
[Notes] RX Family SHA Co-processor Driver, Firmware Integration Technology 日本語 Tool News - Note PDF 121 KB
[Notification] Flash Programmer Survey Invitation 日本語 Tool News - Notification PDF 29 KB
[Upgrade to revision] e² studio Smart Configurator Plug-in V2.7.0, Smart Configurator for RX V2.7.0 日本語 Tool News - Release PDF 95 KB
[Notes] RX Family RSPI Module Firmware Integration Technology, RX Driver Package 日本語 Tool News - Note PDF 92 KB
[Notes] e² studio Smart Configurator Plug-in, Smart Configurator for RX 日本語 Tool News - Note PDF 269 KB
[Notes] RX Family Clock Synchronous Control Module for Serial Flash Memory Access Firmware Integration Technology, RX Driver Package 日本語 Tool News - Note PDF 207 KB
[Notes] RX Family Clock Synchronous Control Module for EEPROM Access Firmware Integration Technology, RX Driver Package 日本語 Tool News - Note PDF 185 KB
[Notes] e² studio Smart Configurator Plug-in, Smart Configurator for RX 日本語 Tool News - Note PDF 65 KB
[Upgrade to version] QE for Display[RX]V2.0.0: Development Assistance Tool for Display 日本語 Tool News - Release PDF 353 KB
[Notes] RX Family CAN API Firmware Integration Technology, Driver Package 日本語 Tool News - Note PDF 150 KB
[Upgrade to revision] e² studio Smart Configurator Plug-in V2.6.0, Smart Configurator for RX V2.6.0 日本語 Tool News - Release PDF 156 KB
[Notes] RX Family RSPI Module Firmware Integration Technology, RX Driver Package 日本語 Tool News - Note PDF 113 KB
[Notes] e² studio Smart Configurator Plug-in, Smart Configurator for RX 日本語 Tool News - Note PDF 504 KB
[Notes] RX Family RTC Module Firmware Integration Technology 日本語 Tool News - Note PDF 84 KB
[Notes] e² studio Smart Configurator Plug-in, Smart Configurator for RX 日本語 Tool News - Note PDF 154 KB
[Notification] "Chance to Win a License!" Join Our Compiler Survey - 5 Winners to Receive Renesas Compiler License! - 日本語 Tool News - Notification PDF 125 KB
[Upgrade to revision] e² studio Smart Configurator Plug-in V2.5.0, Smart Configurator for RX V2.5.0 日本語 Tool News - Release PDF 134 KB
[Upgrade to revision] QE for Display[RX]V1.1.0, QE for Display[RZ]V3.1.1: Development Assistance Tool for Display, QE for Camera[RZ]V1.1.1: Development Assistance Tool for Camera 日本語 Tool News - Release PDF 166 KB
[Notes] e² studio Smart Configurator Plug-in, Smart Configurator for RX 日本語 Tool News - Note PDF 732 KB
[Notes] e² studio Smart Configurator Plug-in, Smart Configurator for RX 日本語 Tool News - Note PDF 246 KB
[Upgrade to revision] e² studio Smart Configurator Plug-in V2.4.0, Smart Configurator for RX V2.4.0, CS+ RX Smart Configurator Communication Plugins V1.02.07 日本語 Tool News - Release PDF 220 KB
[Notes] e² studio Smart Configurator Plug-in, Smart Configurator for RX 日本語 Tool News - Note PDF 1.66 MB
[New release] IEC61508 Certification Kit for RX Compilers V2.03.00 日本語 Tool News - Release PDF 279 KB
[Notes] e² studio Smart Configurator Plug-in, Smart Configurator for RX 日本語 Tool News - Note PDF 160 KB
[Notes] e² studio Smart Configurator Plug-in, Smart Configurator for RX 日本語 Tool News - Note PDF 147 KB
[Notes] e² studio Smart Configurator Plug-in, Smart Configurator for RX 日本語 Tool News - Note PDF 155 KB
[Notes] e² studio Smart Configurator Plug-in, Smart Configurator for RX 日本語 Tool News - Note PDF 341 KB
[Notes] e² studio Smart Configurator Plug-in, Smart Configurator for RX 日本語 Tool News - Note PDF 37 KB
[Notes] e² studio Smart Configurator Plug-in, Smart Configurator for RX 日本語 Tool News - Note PDF 97 KB
[Notification] Shorten Your Prototyping Time with Automatic Initial Board Configuration! Smart Configurator Board Configuration Function for Evaluation Boards from Renesas and Our Partners (RX Family) 日本語 Tool News - Featured Tool PDF 299 KB
[Notes] e² studio Smart Configurator Plug-in, Smart Configurator for RX 日本語 Tool News - Note PDF 207 KB
[Notes]C/C++ Compiler Package for RX Family 日本語 Tool News - Note PDF 236 KB
[Notes] Simulator for RX Family 日本語 Tool News - Note PDF 94 KB
[Notes] CS+ Smart Configurator for RX, e² studio Smart Configurator Plug-in 日本語 Tool News - Note PDF 212 KB
[Released on the Web] Solution Toolkit QE: Development Assistance Tool for Applications QE for UART: Development Assistance Tool for UART Technical Preview V1.0.0 日本語 Tool News - Release PDF 287 KB
[Released on the Web] RX Family Sample Program for Performing FFT on Analog Input Signals Rev.1.00 日本語 Tool News - Release PDF 159 KB
[Upgrade to revision] C/C++ Compiler Package for RX Family V2.08.00 日本語 Tool News - Release PDF 102 KB
[Notes]C/C++ Compiler Package for RX Family 日本語 Tool News - Note PDF 97 KB
[Notes]C/C++ Compiler Package for RX Family 日本語 Tool News - Note PDF 195 KB
[Released on the Web] RX Family RX Driver Package Ver.1.13 日本語 Tool News - Release PDF 403 KB
[Notes] RX Family TCP/IP for Embedded system M3S-T4-Tiny 日本語 Tool News - Note PDF 187 KB
[Notes] e² studio Integrated Development Environment 日本語 Tool News - Note PDF 49 KB
[Notes] CS+ Integrated Development Environment 日本語 Tool News - Note PDF 236 KB
[Notes] e² studio Smart Configurator Plug-in, Smart Configurator for RX 日本語 Tool News - Note PDF 95 KB
[Notes] High-performance Embedded Workshop Integrated Development Environment 日本語 Tool News - Note PDF 98 KB
[Notification] Isolator for E1 Emulator Compatible with E2 Emulator and E2 Emulator Lite 日本語 Tool News - Notification PDF 147 KB
[Notification] Renesas Flash Programmer Command-Line Option Function that is Effective for Programming of Renesas MCU Containing Flash Memory 日本語 Tool News - Notification PDF 185 KB
[Notification] E2 Emulator Lite, an On-Chip Debugging Emulator for CS+ Integrated Development Environment 日本語 Tool News - Featured Tool PDF 362 KB
[Upgrade to revision] Device Information (Managed by CS+) for RX Family V2.01.00 日本語 Tool News - Release PDF 155 KB
[Released on the Web] RX Driver Package for the RX Family Ver.1.12 日本語 Tool News - Release PDF 431 KB
[Notification] Debugging Console Function of the RX MCUs Using On-chip Emulators: E2 Emulator Lite, E1, or E20 日本語 Tool News - Featured Tool PDF 186 KB
[Released on the Web] Solution Tool Kit QE: Dedicated Tools for Particular Applications QE TCP/IP: A Dedicated Tool for TCP/IP Development Technical Preview V1.0.0 日本語 Tool News - Release PDF 100 KB
[Upgrade to revision] CS+ Utilities for the Real-time Operating Systems (RI850V4 V2, RI600V4, RI78V4 V2, and RI600PX) 日本語 Tool News - Release PDF 190 KB
[Notes] RX Family Application Example Using Embedded TCP/IP M3S-T4-Tiny (DHCP/DNS/FTP/HTTP)Firmware Integration Technology and Interface Conversion Module for Ethernet Driver and Embedded System M3S-T4-Tiny Firmware Integration Technology 日本語 Tool News - Note PDF 92 KB
[Notes] e² studio Integrated Development Environment (RI600V4 Real-time Operating System Plug-in for the RX Family) 日本語 Tool News - Note PDF 91 KB
Other
Industrial Automation Brochure 日本語, 简体中文 Brochure PDF 7.93 MB
RX66N MCU GROUP Flyer PDF 338 KB
[Flyer] E2Emulator[RTE0T00020KCE00000R] 日本語, 简体中文 Flyer PDF 381 KB
[Flyer] Renesas C Compilers 日本語 Flyer PDF 245 KB
[Flyer] Renesas Software and Tools Flash Memory Programmer PG-FP6 日本語, 简体中文 Flyer PDF 417 KB
RX DRW2D Driver 日本語 Software & Tools - Others ZIP 453 KB
RX Family Development Tools Brochure PDF 3.41 MB

Resonator Information

Please refer to the resonator manufacturer's site linked below for resonators and matching circuits that are compatible with RX66N products.
For details about resonators or matching, please ask the resonator manufacturer.
For main clock resonators/subclock resonators:
KYOCERA: Click here for RX66N oscillation evaluation results.
Murata Manufacturing: For IC Manufacturer, select Renesas Electronics, and enter "R5F566N" or "RX66N" into the IC Part Number search box.