RX23W microcontrollers incorporate security functions that are vital for Bluetooth® 5.0 Low Energy (BLE) and IoT devices, as well as a wealth of peripheral functions such as touch keys, USB and CAN, enabling system control and wireless communication with devices using a single chip. RX23W MCUs have full function support for Bluetooth 5.0 Low Energy long range and mesh networking, and provide excellent reception performance.

Features

  • RXv2 core 54MHz operation (4.33 CoreMark/MHz)1.8V to 3.6V operationOperating temperature -40°C to 85°C
  • Program Flash Max. 512KB, SRAM Max. 64KB
  • Communications
    • Bluetooth Low Energy x1ch
      Built-in Bluetooth 5.0-compliant RF transceiver and link layer
      Supports LE 1M PHY, LE 2M PHY, LE Coded PHY (125kbps, 500kbps), LE Advertising Extensions
      Built-in Bluetooth dedicated AES-CCM (128-bit) encryption circuit
    • USB 2.0 Host/Function/OTG x1ch
      Full speed (12Mbps), low speed (1.5Mbps), isochronous transfer
      BC (battery charger) support
    • CAN x1ch
      ISO11898-1 compliant CAN, Max. 1Mbps transfer
    • SD Host I/F x1ch
      SD memory/SDIO 1- or 4-bit SD bus support
  • Capacitive Touch Sensing
    • Self-capacitive method: Up to 12 keys supported in a 1-terminal 1-key configuration
    • Mutual capacitive method: Supports up to 36 keys in a 12-terminal matrix configuration
  • Enhanced analog
    • Enhanced analog: 12-bit A/D converter ×14ch, 12-bit D/A converter ×2ch
  • Trusted Secure IP Lite (AES/TRNG)

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
RX23W Group Datasheet 日本語 Datasheet PDF 1.57 MB
User Guides & Manuals
Smart Configurator User's Manual RX API Reference 日本語 Manual PDF 3.34 MB
Bluetooth Low Energy Protocol Stack Basic Package User's Manual 日本語 Manual PDF 2.22 MB
RX Smart Configurator User's Guide: IAREW 日本語 Manual PDF 2.03 MB
RX23W Group User's Manual: Hardware 日本語 Manual PDF 22.55 MB
RX Family C/C++ Compiler Package (CC-RX) How to Divide Boot and Flash Areas 日本語 Manual PDF 1.73 MB
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
e² studio 3.0 Installing into Existing Eclipse Environment Manual PDF 355 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
RX230 Group, RX231 Group, RX23W Group Errata to User's Manual: Hardware Regarding the Realtime Clock (RTC) 日本語 Technical Update PDF 200 KB
Errata to the RX23W Group User's Manual: Hardware Rev.1.00 日本語 Technical Update PDF 191 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
Application Notes & White Papers
Bluetooth Low Energy MCU Bluetooth Test Tool Suite operating instructions Application Note 日本語 Application Note PDF 3.06 MB
- Bluetooth Low Energy MCU Bluetooth Test Tool Suite operating instructions Application Note 日本語 Application Note PDF 3.06 MB
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 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
- 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
- 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 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 Flash Module Using Firmware Integration Technology 日本語 Application Note PDF 1.92 MB
RX Family Sample Program using using USB Peripheral Mass Storage Class Driver (PMSC) for USB Mini Firmware to communicate via USB with USB Host Firmware Integration Technology 日本語 Application Note PDF 1.48 MB
RX Family Sample Program using USB Peripheral Human Interface Device Class Driver (PHID) for USB Mini Firmware to communicate via USB with USB HostFirmware Integration Technology 日本語 Application Note PDF 1.46 MB
RX Family Sample Program using USB Peripheral Communication Device Class Driver (PCDC) for USB Mini Firmware to communicate via USB with USB Host Firmware Integration Technology 日本語 Application Note PDF 1.57 MB
RX Family Sample Program using USB Host Mass Storage Class Driver (HMSC) for USB Mini Firmware to communicate via USB with MSC device Firmware Integration Technolog 日本語 Application Note PDF 1.44 MB
RX Family Sample Program using USB Host Human Interface Device Class Driver (HHID) to communicate via USB with HID device Firmware Integration Technology 日本語 Application Note PDF 1.45 MB
- RX23W Group Sample Program for Highspeed Communication 日本語 Application Note PDF 1.60 MB
- RX23W Renesas Solution Starter Kit Sample Code (e2 studio for CC-RX) Application Note PDF 701 KB
- RX Family Flash ROM Correction 日本語 Application Note PDF 889 KB
- RX Family RX Driver Package Ver.1.23 日本語 Application Note PDF 812 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
- Bluetooth Low Energy MCU Bluetooth Test Tool Suite operating instructions Application Note - Sample Code Sample Code ZIP 23.22 MB
Bluetooth Low Energy MCU Bluetooth Test Tool Suite operating instructions Application Note - Sample Code Sample Code ZIP 23.22 MB
- 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 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
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
RSSK RX23W Design Data 日本語 Design File ZIP 1.12 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 Flash Module Using Firmware Integration Technology Sample Code ZIP 96.28 MB
- RX Family Sample Program using using USB Peripheral Mass Storage Class Driver (PMSC) for USB Mini Firmware to communicate via USB with USB Host Firmware Integration Technology Sample Code ZIP 125.30 MB
- RX Family Sample Program using USB Peripheral Human Interface Device Class Driver (PHID) for USB Mini Firmware to communicate via USB with USB HostFirmware Integration Technology Sample Code ZIP 113.02 MB
- RX Family Sample Program using USB Peripheral Communication Device Class Driver (PCDC) for USB Mini Firmware to communicate via USB with USB Host Firmware Integration Technology Sample Code ZIP 145.51 MB
- RX Family Sample Program using USB Host Mass Storage Class Driver (HMSC) for USB Mini Firmware to communicate via USB with MSC device Firmware Integration Technolog Sample Code ZIP 152.96 MB
- RX Family Sample Program using USB Host Human Interface Device Class Driver (HHID) to communicate via USB with HID device Firmware Integration Technology Sample Code ZIP 101.02 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
RX23W Group Sample Program for Highspeed Communication Sample Code ZIP 60.92 MB
RX23W Renesas Solution Starter Kit Sample Code (e2 studio for CC-RX) Sample Code ZIP 54.04 MB
RX Family Flash ROM Correction Sample Code ZIP 11.60 MB
Getting started with RX development environment with CS+ Evaluation Software PDF 3.41 MB
RX Family RX Driver Package Ver.1.23 Sample Code ZIP 120.73 MB
QE for BLE[RX] V1.0.0 日本語 Software ZIP 3.44 MB
[technical preview version] QE for UART V1.0.0 日本語 Software ZIP 824 KB
[technical preview version]QE for TCP/IP V1.0.1 日本語 Software ZIP 505 KB
- 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
[Notes] RX Driver Package, RX Family RTC Module Using Firmware Integration Technology 日本語 Tool News - Note PDF 265 KB
[Note] RX Family Board Support Package Module Firmware Integration Technology, RX Driver Package 日本語 Tool News - Note PDF 126 KB
[Upgrade to revision] Programming GUI for PG-FP6 Flash Memory Programmer (FP6 Terminal) V1.05.01 日本語 Tool News - Release PDF 57 KB
[Upgrade to revision] Renesas Flash Programmer V3.08.01 日本語 Tool News - Release PDF 81 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
[Upgrade to revision] Renesas Flash Programmer V3.08.00 日本語 Tool News - Release PDF 83 KB
[Upgrade to revision] Programming GUI for PG-FP6 Flash Memory Programmer (FP6 Terminal) V1.05.00 日本語 Tool News - Release PDF 72 KB
[Notes] e² studio Smart Configurator Plug-in, Smart Configurator for RX 日本語 Tool News - Note PDF 65 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
[Upgrade to revision] Renesas Flash Programmer V3.06.02 日本語 Tool News - Release PDF 80 KB
[Upgraded to version] e² studio 2020-07 日本語 Tool News - Release PDF 159 KB
[Upgrade to revision] Programming GUI for PG-FP6 Flash Memory Programmer (FP6 Terminal) V1.04.02 日本語 Tool News - Release PDF 74 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
[Upgrade to revision] Programming GUI for PG-FP6 Flash Memory Programmer (FP6 Terminal) V1.04.01 日本語 Tool News - Release PDF 73 KB
[Notes] RX Family RTC Module Firmware Integration Technology 日本語 Tool News - Note PDF 84 KB
[New release] Renesas Solution Starter Kit for RX23W - Support for Bluetooth® 5.0 Low Energy and Evaluation of Bluetooth 5.0 Communication Performance - 日本語 Tool News - Release PDF 392 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
[Released on the web] e² studio 2020-04 日本語 Tool News - Release PDF 184 KB
[Upgraded to revision] e² studio Integrated Development Environment V7.8.0 日本語 Tool News - Release PDF 194 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
[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
[Notification] Current Consumption Tuning Solution for RX and RL78 Families Using E2 Emulator and QE for Current Consumption 日本語 Tool News - Featured Tool PDF 292 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
RX23W Other PDF 464 KB
Renesas Flash Programmer V3.06.02 Release Notes 日本語 Release Note PDF 324 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 Family Development Tools Brochure PDF 3.41 MB

Boards & Kits

Part Number Title Type Company
RX-Family-Target-Board Target Board for RX family Evaluation Renesas

Resonator Information

Please search for your resonator on its manufacturer's site linked below. If you require optimal oscillation circuit constants for your particular system, please ask the manufacturer of the oscillator.

For main clock resonators/For subclock resonators :
KYOCERA Click here for RX23W oscillation evaluation result.
Murata Manufacturing : For IC Manufacturer, select Renesas Electronics, and enter R5F523W into the IC Part Number search box.
NIHON DEMPA KOGYO : Please see IC Matching Information in the RX23W column.