The R8C/3GD Group is supported only for customers who have already adopted these products. The RL78/G1F, RL78/G13 Groups are recommended for new designs.

The R8C/3GD Group of single-chip MCUs incorporates the R8C CPU core, employing sophisticated instructions for a high level of efficiency. With 1Mb of address space, and it is capable of executing instructions at high speed. In addition, the CPU core boasts a multiplier for high-speed operation processing.

Power consumption is low, and the supported operating modes allow additional power control. These MCUs are designed to maximize EMI/EMS performance. Integration of many peripheral functions, including multifunction timer and serial interface, reduces the number of system components.

Applications

  • Electronic Household Appliances
  • Office Equipment
  • Audio Equipment
  • Consumer Equipment

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
R8C/3GD Group Datasheet 日本語 Datasheet PDF 521 KB
User Guides & Manuals
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
E8a Emulator User's Manual 日本語 Manual PDF 2.95 MB
Flash Development Toolkit V.4.09 Release 03 (for Windows 7, Windows 8.1, Windows 10) User's Manual 日本語 Manual PDF 3.55 MB
R0E000010ACB10 User's Manual (Isolator for E1 Emulator) 日本語 Manual PDF 1.73 MB
R0E000010CKZ11 User's Manual (Small Connector Conversion Adapter for E1 Emulator) 日本語 Manual PDF 178 KB
E8a Emulator Additional Document for User's Manual (Notes on Connecting R8C/32D R8C/33D R8C/35D and R8C/3GD) 日本語 Manual PDF 1.08 MB
R8C/3GD Group Hardware Manual 日本語 Manual PDF 5.75 MB
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
R8C/Tiny Series Software Manual 简体中文 Manual PDF 1.38 MB
Application Notes & White Papers
RL78/G14, R8C/36M Group Migration Guide from R8C to RL78: Flash Memory 日本語 Application Note PDF 412 KB
RL78/G14, R8C/36M Group Migration Guide from R8C to RL78: Timer RA to Timer RJ 日本語 Application Note PDF 1.09 MB
- RL78/G14, R8C/36M Group Migration Guide from R8C to RL78: Timer RA to Timer RJ 日本語 Application Note PDF 1.09 MB
RL78/G14, R8C/36M Group Migration Guide from R8C to RL78: D/A converter 日本語 Application Note PDF 305 KB
RL78/G14, R8C/36M Group Migration Guide from R8C to RL78: Power Control 日本語 Application Note PDF 380 KB
RL78/G14, R8C/36M Group Migration Guide from R8C to RL78: Reset Function 日本語, 简体中文 Application Note PDF 199 KB
RL78/G11, R8C/32C Group Migration Guide from R8C to RL78: A/D Converter Application Note PDF 1.74 MB
RL78/G11、R8C/32Cグループ R8CからRL78への移行ガイド:A/Dコンバータ Application Note PDF 2.06 MB
- RL78/G11, R8C/32C Group Migration Guide from R8C to RL78: A/D Converter Application Note PDF 1.74 MB
- RL78/G11、R8C/32Cグループ R8CからRL78への移行ガイド:A/Dコンバータ Application Note PDF 2.06 MB
- RL78/G14, R8C/36M Group Migration Guide from R8C to RL78:Timer RE to Real-Time Clock and Timer Array Unit Application Note PDF 660 KB
RL78/G14, R8C/36M Group Migration Guide from R8C to RL78: Timer RC to Timer Array Unit 日本語 Application Note PDF 695 KB
- RL78/G14, R8C/36M Group Migration Guide from R8C to RL78: Timer RC to Timer Array Unit 日本語 Application Note PDF 695 KB
- RL78/G14, R8C/36M Group Migration Guide from R8C to RL78: Serial Interface 日本語 Application Note PDF 1.42 MB
- RL78/G14, R8C/36M Group Migration Guide from R8C to RL78: A/D Converter 日本語 Application Note PDF 1.74 MB
Compiler Package Application Note: The application guide of Call Walker 日本語 Application Note PDF 243 KB
- R8C/35C Group Flash Memory Low-Current-Consumption Read Mode 日本語 Application Note PDF 645 KB
- R8C/35C Group Rewriting Program ROM Using EW0 Mode 日本語 Application Note PDF 603 KB
R8C/35A Group Power Control Using Wait Mode 日本語 Application Note PDF 738 KB
R8C/35A Group Power Control Using Stop Mode 日本語 Application Note PDF 708 KB
R8C/35C Group Flash Memory Low-Current-Consumption Read Mode 日本語 Application Note PDF 645 KB
R8C/35C Group Rewriting Program ROM Using EW0 Mode 日本語 Application Note PDF 603 KB
R8C/35A Group Clock Operation Using RTC 日本語 Application Note PDF 786 KB
- R8C/35C Group UART Version Program Downloader Application Note PDF 1.00 MB
- R8C/35A Group Clock Synchronous Serial Program Downloader 日本語 Application Note PDF 532 KB
R8C Family Implementing Interrupts in MR8C/4 Application Note PDF 695 KB
R8C Family Implementing Time Event Handlers in MR8C/4 Application Note PDF 938 KB
R8C Family Implementing System Timer in MR8C/4 Application Note PDF 126 KB
High-performance Embedded Workshop Application Note: Real-time OS aware debugging 日本語 Application Note PDF 750 KB
R8C/3x Series VDE Certified IEC60730 Self Test Code for R8C/3x Series MCU Application Note PDF 286 KB
Creating Workspace with MR8C/4 简体中文 Application Note PDF 897 KB
How to Compute MR8C/4 User Stack and System Stack 简体中文 Application Note PDF 583 KB
Debugging with MR8C/4 简体中文 Application Note PDF 469 KB
How to use Data Queue in place of Mailbox Application Note PDF 325 KB
How to Implement MR8C/4 in Embedded Applications Application Note PDF 760 KB
How to Implement Timeout Feature in MR8C4 Application Note PDF 152 KB
General RTOS Concepts Application Note PDF 801 KB
Perl Script to Convert S-Record Data to a C Structure 日本語, 简体中文 Application Note PDF 632 KB
Utility To Convert S-Record Data To A C-Structure Application Note PDF 255 KB
Self Test Sample Code for Renesas Microcontrollers Application Note PDF 364 KB
Countermeasures against noise Application Note PDF 215 KB
- Flash Rewrite Using EW1 Mode (Data FFh Search) Application Note PDF 188 KB
Programming Guidelines Assembly Language Application Note PDF 898 KB
M3T-NC308WA, M3T-NC30WA Application Notes (C Compilers for M16C Family) Application Note PDF 2.05 MB
Programming Guidelines C Language Application Note PDF 683 KB
General-purpose Program for Changing Blocks Application Note PDF 107 KB
General-purpose Program for Clearing RAM Application Note PDF 103 KB
General-purpose Program for Indirect Subroutine Call Application Note PDF 145 KB
General-purpose Program for Transferring Blocks Application Note PDF 104 KB
General-purpose Program for Compressing BCD Application Note PDF 106 KB
A Software control of I2C-BUS using General-purpose Ports 日本語 Application Note PDF 188 KB
The Software Reset Judging Method Application Note PDF 127 KB
High-performance Embedded Workshop Tcl/Tk Application Note Application Note PDF 1.43 MB
Operation of Timer A (event counter mode. reload type) 日本語 Application Note PDF 64 KB
Operation of Timer A (timer mode. gate function) 日本語 Application Note PDF 62 KB
Operation of Timer A (timer mode) 日本語 Application Note PDF 61 KB
Protect Operation 日本語 Application Note PDF 59 KB
Concept of the Power Control 日本語 Application Note PDF 490 KB
PCNs & PDNs
Unification of a JEDEC tray and a embossed carrier tape for LQFP package (Additional Information & Correction) 日本語 Product Change Notice PDF 4.86 MB
Unification of a JEDEC tray and a embossed carrier tape for LQFP package 日本語 Product Change Notice PDF 3.74 MB
Unification of a JEDEC tray and a embossed carrier tape for LQFP package 日本語 Product Change Notice PDF 1.46 MB
Downloads
- RL78/G14, R8C/36M Group Migration Guide from R8C to RL78: Timer RA to Timer RJ Sample Code ZIP 2.13 MB
- RL78/G14、R8C/36M グループ R8C からRL78 への移行ガイド:タイマRA→タイマRJ Sample Code ZIP 2.57 MB
RL78/G14, R8C/36M Group Migration Guide from R8C to RL78: Timer RA to Timer RJ Sample Code ZIP 2.13 MB
- RL78/G11, R8C/32C Group Migration Guide from R8C to RL78: A/D Converter 日本語 Sample Code ZIP 3.56 MB
- RL78/G11, R8C/32C Group Migration Guide from R8C to RL78: A/D Converter 日本語 Sample Code ZIP 3.56 MB
RL78/G11, R8C/32C Group Migration Guide from R8C to RL78: A/D Converter 日本語 Sample Code ZIP 3.56 MB
RL78/G14, R8C/36M Group Migration Guide from R8C to RL78:Timer RE to Real-Time Clock and Timer Array Unit Sample Code ZIP 1004 KB
- RL78/G14, R8C/36M Group Migration Guide from R8C to RL78: Timer RC to Timer Array Unit Sample Code ZIP 1.03 MB
- RL78/G14、R8C/36Mグループ R8CからRL78への移行ガイド:タイマRC→タイマ・アレイ・ユニット Sample Code ZIP 1.59 MB
RL78/G14, R8C/36M Group Migration Guide from R8C to RL78: Timer RC to Timer Array Unit Sample Code ZIP 1.03 MB
RL78/G14, R8C/36M Group Migration Guide from R8C to RL78: Serial Interface 日本語 Sample Code ZIP 1.66 MB
RL78/G14, R8C/36M Group Migration Guide from R8C to RL78: A/D Converter 日本語 Sample Code ZIP 2.59 MB
[Evaluation Software] Flash Development Toolkit V.4.09 Release 03 日本語 Evaluation Software EXE 40.31 MB
Flash Development Toolkit V.4.09 Release 03 Upgrade 日本語 Upgrade - Programmer EXE 40.31 MB
[Evaluation Software] Flash Development Toolkit V.4.09 Release 02 日本語 Evaluation Software EXE 41.01 MB
Flash Development Toolkit V.4.09 Release 02 Upgrade 日本語 Upgrade - Programmer EXE 41.01 MB
Flash Development Toolkit V.4.09 Release 02 (Light version) Upgrade 日本語 Upgrade - Programmer EXE 10.45 MB
Flash Development Toolkit V.4.09 Release 01 Upgrade 日本語 Upgrade - Programmer EXE 41.03 MB
Flash Development Toolkit V.4.09 Release 01 (Light version) Upgrade 日本語 Upgrade - Programmer EXE 10.47 MB
Device File Updater for M16C series and R8C Family V.1.15 日本語 Software EXE 7.27 MB
Flash Development Toolkit V.4.09 Release 00 Upgrade 日本語 Upgrade - Programmer EXE 41.03 MB
Flash Development Toolkit V.4.08 Release 02 Upgrade 日本語 Upgrade - Programmer EXE 39.98 MB
Flash Development Toolkit V.4.08 Release 02 (Light version) Upgrade 日本語 Upgrade - Programmer EXE 3.22 MB
High-performance Embedded Workshop V.4.09.01 Full Update 日本語 Upgrade - IDE EXE 68.25 MB
High-performance Embedded Workshop V.4.09.01 Differential Update(From V.4.09.00) 日本語 Upgrade - IDE EXE 15.89 MB
Flash Development Toolkit V.4.08 Release 01 (Light version) Upgrade 日本語 Upgrade - Programmer EXE 24.65 MB
Flash Development Toolkit V.4.08 Release 01 Upgrade 日本語 Upgrade - Programmer EXE 40.02 MB
E8a Emulator Software V.1.05 Release 01 (Full package) 日本語 Upgrade - Debugger EXE 309.49 MB
R8C E8a Emulator debugger V.1.05.01 (Debugger package version of E8a Emulator Software V.1.05 Release 01) 日本語 Upgrade - Debugger EXE 46.03 MB
High-performance Embedded Workshop Real-Time OS Aware Debugging Upgrade module 日本語 Upgrade - OS ZIP 119 KB
R8C/35C Group Flash Memory Low-Current-Consumption Read Mode 日本語 Sample Code ZIP 857 KB
R8C/35C Group Rewriting Program ROM Using EW0 Mode 日本語 Sample Code ZIP 1.09 MB
- R8C/35A Group Power Control Using Wait Mode 日本語 Sample Code ZIP 1.61 MB
- R8C/35A Group Power Control Using Stop Mode 日本語 Sample Code ZIP 2.04 MB
- R8C/35C Group Flash Memory Low-Current-Consumption Read Mode 日本語 Sample Code ZIP 857 KB
- R8C/35C Group Rewriting Program ROM Using EW0 Mode 日本語 Sample Code ZIP 1.09 MB
- R8C/35A Group Clock Operation Using RTC 日本語 Sample Code ZIP 1.09 MB
R8C/35C Group UART Version Program Downloader Sample Code ZIP 904 KB
R8C/35A Group Clock Synchronous Serial Program Downloader Sample Code ZIP 510 KB
- R8C/3x Series VDE Certified IEC60730 Self Test Code for R8C/3x Series MCU Sample Code ZIP 3.78 MB
- Sample codes for RX Compiler Package Application Notes: Sample Project RX Migration Guide, M16C Edition 日本語 Sample Code ZIP 56 KB
- Source code for Workspace Creation Application Note on MR8C/4 OS Sample Code ZIP 879 KB
- 看门狗定时器的使用 Sample Code ZIP 283 KB
- 定时器A操作(事件计数模式中的二相脉冲信号处理、4倍频方式) Sample Code ZIP 264 KB
- Source code for Application note on how to debug applications running on MR8C/4 Sample Code ZIP 877 KB
- 定时器 A操作(事件计数模式、自由运行方式) Sample Code ZIP 257 KB
- Source code for Application Note on how to use Data Queue in place of Mailbox Sample Code ZIP 364 KB
- Source code for Application Note on how to implement MR8C/4 in Embedded Applications Sample Code ZIP 952 KB
- Source code for Application Note on Implementing Timeout Feature in MR8C/4 Sample Code ZIP 176 KB
Flash Development Toolkit V.3.07 Release 05 Upgrade 日本語 Upgrade - Programmer EXE 1.15 MB
E8a self-check program V.1.00.02 日本語 Software ZIP 116 KB
Install Manager Utility V.1.03.01 Upgrade 日本語 Software EXE 1.30 MB
AutoUpdate Utility V.1.05.00 Upgrade 日本語 Software EXE 7.57 MB
- Renesas MCU Perl Script to Convert S-Record Data to a C Structure Sample Code ZIP 613 KB
- タイマA動作(ワンショットタイマモード、外部トリガ) Sample Code ZIP 391 KB
- Renesas MCU Utility To Convert S-Record Data To A C-Structure Sample Code ZIP 303 KB
- R8C Tiny, M16C Tiny, SH Tiny, and H8 Tiny Series Self Test Sample Code for Renesas Microcontrollers Sample Code ZIP 1.70 MB
Flash Rewrite Using EW1 Mode (Data FFh Search) Sample Code ZIP 162 KB
- General-purpose Program for Changing Blocks Sample Code ZIP 51 KB
- General-purpose Program for Clearing RAM Sample Code ZIP 48 KB
- General-purpose Program for Indirect Subroutine Call Sample Code ZIP 65 KB
- General-purpose Program for Transferring Blocks Sample Code ZIP 49 KB
- General-purpose Program for Compressing BCD Sample Code ZIP 51 KB
- A Software control of I2C-BUS using General-purpose Ports Sample Code ZIP 158 KB
- The Software Reset Judging Method Sample Code ZIP 64 KB
- Operation of Timer A (event counter mode. reload type) Sample Code ZIP 38 KB
- Operation of Timer A (timer mode. gate function) Sample Code ZIP 36 KB
- BCD圧縮汎用プログラム Sample Code ZIP 86 KB
- Operation of Timer A (timer mode) Sample Code ZIP 34 KB
- 間接サブルーチン呼び出し汎用プログラム Sample Code ZIP 94 KB
- Protect Operation Sample Code ZIP 31 KB
- ブロック交換汎用プログラム Sample Code ZIP 85 KB
Tool News
[Notes] C/C++ Compiler Package for M16C and R8C Families 日本語 Tool News - Note PDF 141 KB
E8a Emulator Software Revised to V.1.03 Release 04 日本語 Tool News - Release PDF 368 KB
Flash Development Toolkit Revised to V.4.05 Release 00 日本語 Tool News - Release PDF 365 KB
Flash Development Toolkit Revised to V.3.07 Release 05 日本語 Tool News - Release PDF 193 KB
E8a Emulator Software Revised to V.1.03 Release 03 日本語 Tool News - Release PDF 197 KB
A Note on Using E8a Emulator Software 日本語 Tool News - Note PDF 194 KB
Flash Development Toolkit Revised to V.4.04 Release 00 日本語 Tool News - Release PDF 199 KB
High-performance Embedded Workshop Revised to V.4.07.00 日本語 Tool News - Release PDF 199 KB
E8a Emulator Software Revised to V.1.03 Release 02 日本語 Tool News - Release PDF 195 KB
E8a Emulator Software Revised to V.1.03 Release 01 日本語 Tool News - Release PDF 195 KB
Flash Development Toolkit Revised to V.4.03 Release 02 日本語 Tool News - Release PDF 199 KB
Other
Precaution of MCU start up 日本語 Technical Update PDF 270 KB
Precaution of Flash suspend function 日本語 Technical Update PDF 282 KB
Precaution of low temp. slow start-up 日本語 Technical Update PDF 425 KB
Note on Serial Interface (UART2) 日本語 Technical Update PDF 139 KB
Renesas Microcomputer R8C Family Selection Guide 日本語 Brochure PDF 2.56 MB
R8C E8a Emulator Debugger V.1.05.01 Release Notes 日本語 Release Note PDF 489 KB
R8C/3GD Group Register Definition 日本語 Software & Tools - Others ZIP 19 KB
MCU M16C Family (R32C/M32C/M16C/R8C) Brochure PDF 29.76 MB
Renesas Semiconductor Lead-Free Packages Brochure PDF 1.32 MB
- アプリケーションノート(Cでの割り込みハンドラの記述)付属 回路図 Software & Tools - Others ZIP 513 KB

Software / Tools

Title Type Description Company
SPI/QSPI Serial Flash Memory, QSPI Serial Phase Change Memory Driver Serial Memory Device Driver for SPI and QSPI Serial Flash Memory and QSPI Serial Phase Change Memory Renesas
SPI Serial EEPROM Driver Serial Memory Device Drivers for SPI Bus Serial EEPROM R1EX25xxx Series and HN58X25xxx Series Renesas
M3T-MR30/4 Real-time OS for M16C Series and R8C Family ITRON OS μITRON4.0 Specification real-time OS for M32C/80, M16C/80 Series [Required IDE :High-performance Embedded Workshop]

Renesas
C/C++ Compiler Package for R8C and M16C Families Compiler/Assembler C/C++ Compiler Package for R8C Family and M16C Family (R32C/M32C/M16C) , * Packed the following three compiler packages : [Content] C Compiler Package for R32C Series, C Compiler Package for M32C Series [M3T-NC308WA], and C/C++ Compiler Package for M16C Series and R8C Family [M3T-NC30WA]. They are bundled with the simulator debugger and High-performance Embedded Workshop.
Renesas
MISRA C Rule Checker SQMlint Compiler/Assembler MISRA C Rule Checker (option)
Renesas
E8a Emulator On-Chip Debugging Emulator for R8C, M16C, H8S, H8 and 740 families. E8a is also used as a device programmer for Renesas microcomputers. This product is E8 emulator's successor. Renesas
High-performance Embedded Workshop IDE and Coding Tool Renesas integrated development environment (IDE) (for SuperH, RX, R8C, M32R, M16C, H8SX, H8S, H8, and 740 families).
Renesas
Flash Development Toolkit (Programming GUI) Programmer (Unit/SW) Flash memory programming software. [Support MCU/MPU and devices: SuperH RISC engine, RX, R8C, M16C, H8SX, H8S, H8, 740] Renesas
Simulator Debugger for M16C Series and R8C Family Simulator Simulator Debugger for M16C/60, M16C/30, M16C/Tiny, M16C/20, M16C/10 Series and R8C Family [Support IDE : High-performance Embedded Workshop] (Note: This product is included in Compiler Package and is not available separately.)
Renesas