The RX64M Group 32-bit microcontrollers are capable of operating at up to 120 MHz, providing a leading edge performance of 5.06 CoreMark/MHz. The RX64M employs the powerfully evolved RXv2 core, which is backward compatible with the RX core employed in existing RX products.The RXv2 core enables 1.48 times the CoreMark/MHz performance and a 40% reduction in power consumption compared to existing RX products, and even higher code efficiency, allowing the realization of high-speed, low consumption systems. The RX64M Group is equipped with large-capacity memory of up to 4 MB of ROM for code and 552 KB work RAM. Built-in functions include the well-received event link controller from the RX200 and abundant functions from the RX63N, as well as SD card and audio interfaces, which are highly demanded by the market, and IEEE 1588 industrial Ethernet functions have been added. Thus, the RX64M Group is suitable for industrial equipment, network devices, and other applications requiring advanced real-time performance and large-capacity memory. We are also preparing a variety of middleware to support short system development times at low cost.

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
RX64M Group Datasheet 日本語 Datasheet PDF 2.00 MB
User Guides & Manuals
Smart Configurator User's Manual RX API Reference 日本語 Manual PDF 3.34 MB
e² studio Integrated Development Environment User's Manual: Getting Started Guide RX, RL78, RH850 Family 日本語 Manual PDF 3.73 MB
RX64M Group, RX71M Group Flash Memory User's Manual: Hardware Interface (R01UH0435EJ0120) 日本語 Manual PDF 854 KB
RX Smart Configurator User's Guide: IAREW 日本語 Manual PDF 2.03 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
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
RX64M Group User's Manual: Hardware 日本語 Manual PDF 33.77 MB
RX64M Group, RX71M Group Flash Memory User's Manual: Hardware Interface (R01UH0435EJ0110) 日本語 Manual PDF 380 KB
RX Family RXv2 Instruction Set Architecture User's Manual: Software 日本語 Manual PDF 3.92 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: H8 Edition 日本語 Guide PDF 890 KB
RX Compiler Application Notes: 4-Sample Project RX Migration Guide: M16C Edition 日本語 Guide PDF 926 KB
Technical Updates
RX64M Group and RX71M Group Extension of Data Hold Time (Retention) of Flash Memory 日本語 Technical Update PDF 175 KB
RX600 Series, RX700 Series Errata to User's Manual: Hardware Regarding the Realtime Clock (RTC) 日本語 Technical Update PDF 207 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) (TN-RX*-A0228A/E) 日本語 Technical Update PDF 599 KB
Changes to the Procedure of Transition to Software Standby Mode for RX64M, RX65N, and RX71M Group Products 日本語 Technical Update PDF 157 KB
Note on Software Reset of the DMA Controller for the Ethernet Controller (EDMAC) of RX64M and RX71M Group Products 日本語 Technical Update PDF 177 KB
Addition of a way to confirm the completion of the transmission of all data through the serial peripheral interface (RSPI) (TN-RXx-A0147B/E) 日本語 Technical Update PDF 179 KB
Note on Message Transmission by the PTP Module for the Ethernet Controller (EPTPC) of RX64M and RX71M Group Products 日本語 Technical Update PDF 146 KB
Errata to User's Manuals Regarding the Bit Settings for Multi-Function Timer Pulse Unit 3 (MTU3) 日本語 Technical Update PDF 188 KB
Application Notes & White Papers
RX Family Sample Program for Performing FFT on Analog Input Signals 日本語 Application Note PDF 1.35 MB
- RX Family Sample Program for Performing FFT on Analog Input Signals 日本語 Application Note PDF 1.35 MB
RX Family Changes to Reset Status Registers when Resets Occur 日本語 Application Note PDF 393 KB
RX Family ADC Module Using Firmware Integration Technology 日本語 Application Note PDF 1.33 MB
- RX Family ADC Module Using Firmware Integration Technology 日本語 Application Note PDF 1.33 MB
RX64M Group Initial Settings Example 日本語 Application Note PDF 711 KB
- RX64M Group Initial Settings Example 日本語 Application Note PDF 711 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 HS300x Relative Humidity and Temperature Sensor Control Module Firmware Integration Technology Application Note 日本語 Application Note PDF 836 KB
- RX64M, RX71M Group Using the DTC and SCIFA to Perform Asynchronous Serial Transmission and Reception 日本語 Application Note PDF 565 KB
- RX64M, RX71M Group Using the SCIg Bit Rate Modulation Function 日本語 Application Note PDF 646 KB
RX64M, RX71M Group Using the SCIg Bit Rate Modulation Function 日本語 Application Note PDF 646 KB
RX64M, RX71M Group Using the DTC and SCIFA to Perform Asynchronous Serial Transmission and Reception 日本語 Application Note PDF 565 KB
- RX Family Clock Synchronous Control Module for EEPROM Access Firmware Integration Technology 日本語 Application Note PDF 391 KB
- RX Family Clock Synchronous Control Module for Serial Flash Memory Access Firmware Integration Technology 日本語 Application Note PDF 500 KB
RX Family Clock Synchronous Control Module for Serial Flash Memory Access Firmware Integration Technology 日本語 Application Note PDF 500 KB
RX Family Clock Synchronous Control Module for EEPROM Access Firmware Integration Technology 日本語 Application Note PDF 391 KB
- 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 How to implement FreeRTOS OTA by using Amazon Web Services on RX65N 日本語 Application Note PDF 1.59 MB
- RX Family RX Driver Package Ver.1.27 日本語 Application Note PDF 631 KB
RX64M Group and RX71M Group Precautions Regarding High-Temperature Operation of RX64M Group and RX71M Group 日本語 Application Note PDF 1.32 MB
- M3S-TFAT-Tiny Memory Driver Interface Module Firmware Integration Technology 日本語 Application Note PDF 422 KB
- Open Source FAT File System M3S-TFAT-Tiny Module Firmware Integration Technology 日本語 Application Note PDF 470 KB
Open Source FAT File System M3S-TFAT-Tiny Module Firmware Integration Technology 日本語 Application Note PDF 470 KB
M3S-TFAT-Tiny Memory Driver Interface Module Firmware Integration Technology 日本語 Application Note PDF 422 KB
- RX Family RSPI Module Using Firmware Integration Technology 日本語 Application Note PDF 592 KB
- RX Family Memory Access Driver Interface Module Using Firmware Integration Technology 日本語 Application Note PDF 245 KB
RX Family Memory Access Driver Interface Module Using Firmware Integration Technology 日本語 Application Note PDF 245 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 Read/Write Operations in SDRAM Using the SDRAMC 日本語 Application Note PDF 1.60 MB
RX Family Sample programs to use SSI module for PCM data transfer Using Firmware Integration Technology Modules 日本語 Application Note PDF 700 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 Flash Module Using Firmware Integration Technology 日本語 Application Note PDF 1.92 MB
RX Family Flash Module Using Firmware Integration Technology 日本語 Application Note PDF 1.92 MB
RX Family SRC Module using Firmware Integration Technology 日本語 Application Note PDF 174 KB
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 Flash ROM Correction 日本語 Application Note PDF 889 KB
RX Family Specification Differences Between the RIIC and SCI(Simple I2C Mode) and Selection Guide 日本語 Application Note PDF 77 KB
- RX Family SD Mode SD Memory Card Driver Firmware Integration Technology 日本語 Application Note PDF 1.01 MB
RX Family SD Mode SD Memory Card Driver Firmware Integration Technology 日本語 Application Note PDF 1.01 MB
- RX Family Using the Trusted Memory Function (R01AN2618EJ0300) Application Note PDF 397 KB
- RX ファミリ Trusted Memory 機能の使い方 (R01AN2618JJ0300) Application Note PDF 710 KB
- RX Family RX Driver Package Ver.1.23 日本語 Application Note PDF 812 KB
- RX Family RX Driver Package Ver.1.22 日本語 Application Note PDF 813 KB
RX Family Amazon FreeRTOS download with e² studio 日本語 Application Note PDF 2.71 MB
- RX Family RX Driver Package Ver.1.20 日本語 Application Note PDF 813 KB
- RX Family System Timer Module Firmware Integration Technology Application Note 日本語 Application Note PDF 223 KB
RX Family System Timer Module Firmware Integration Technology Application Note 日本語 Application Note PDF 223 KB
- RX Family Using the Trusted Memory Function (R01AN2618EJ0200) 日本語 Application Note PDF 585 KB
- RX Family Using the Exception Vector Table and Software Configurable Interrupts 日本語 Application Note PDF 660 KB
RX Family Using the Exception Vector Table and Software Configurable Interrupts 日本語 Application Note PDF 660 KB
Design Guide for Migration between RX Family Differences in Package External Dimensions 日本語 Application Note PDF 3.61 MB
- RX Family Embedded TCP/IP M3S-T4-Tiny Socket API Module Firmware Integration Technology 日本語 Application Note PDF 836 KB
- RX Family Flash Memory Data Management Module Using Firmware Integration Technology 日本語 Application Note PDF 770 KB
RX Family Flash Memory Data Management Module Using Firmware Integration Technology 日本語 Application Note PDF 770 KB
RX Family Embedded TCP/IP M3S-T4-Tiny Socket API Module Firmware Integration Technology 日本語 Application Note PDF 836 KB
- RX Family RX DSP Library Version 5.0 日本語 Application Note PDF 923 KB
RX Family RX DSP Library Version 5.0 日本語 Application Note PDF 923 KB
- RX Family Virtual EEPROM Module Using Firmware Integration Technology 日本語 Application Note PDF 937 KB
RX Family, H8S Family H8S to RX Migration Guide: ADC 日本語 Application Note PDF 483 KB
RX Family, H8S Family H8S to RX Migration Guide: DTC 日本語 Application Note PDF 738 KB
RX Family C/C++ Compiler Package (CC-RX) Programming Techniques 日本語 Application Note PDF 791 KB
RX Family Guide for Porting the FIT Project to the Other RX Family 日本語 Application Note PDF 954 KB
RX Family Adding Firmware Integration Technology Modules to Projects 日本語 Application Note PDF 1.33 MB
RX Family Adding Firmware Integration Technology Modules to CS+ Projects 日本語 Application Note PDF 1.67 MB
- RX Family Sample program that uses Sound Playback/Compression System (Original ADPCM Codec) [M3S-S2-Tiny] Module Firmware Integration Technology 日本語 Application Note PDF 266 KB
- RX Family Sample program that uses Open Source FAT File System [M3S-TFAT-Tiny] Module Firmware Integration Technology 日本語 Application Note PDF 176 KB
RX Family Sample program that uses Open Source FAT File System [M3S-TFAT-Tiny] Module Firmware Integration Technology 日本語 Application Note PDF 176 KB
RX Family Sample program that uses Sound Playback/Compression System (Original ADPCM Codec) [M3S-S2-Tiny] Module Firmware Integration Technology 日本語 Application Note PDF 266 KB
- RX Family Clock Synchronous Single Master Control Software Using the RSPI 日本語 Application Note PDF 802 KB
- RX Family Sound Playback/Compression System (Original ADPCM Codec) [M3S-S2-Tiny] Module Firmware Integration Technology 日本語 Application Note PDF 151 KB
- RX Family JPEG Decoder Module Firmware Integration Technology 日本語 Application Note PDF 172 KB
- RX Family JPEG Encoder Module Firmware Integration Technology 日本語 Application Note PDF 239 KB
RX Family JPEG Encoder Module Firmware Integration Technology 日本語 Application Note PDF 239 KB
RX Family JPEG Decoder Module Firmware Integration Technology