The R8C/18 Group is supported only for customers who have already adopted these products. The RL78/G12 Group is recommended for new designs.

This MCU is built using the high-performance silicon gate CMOS process using the R8C/Tiny Series CPU core and is packaged in a 20-pin plastic molded LSSOP. This MCU operates using sophisticated instructions featuring a high level of instruction efficiency. With 1Mb of address space, it is capable of executing instructions at high speed. Furthermore, the data flash ROM (1KB × 2 blocks) is embedded in the R8C/17 group. The difference between the R8C/16 and R8C/17 groups is only the existence of the data flash ROM. Their peripheral functions are the same.

Applications

  • Electric Household Appliance
  • Office Equipment
  • Housing Equipment (Sensor / Security)
  • General Industrial Equipment
  • Audio

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
R8C/18, R8C/19 Group Datasheet 日本語 Datasheet PDF 685 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
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/18, R8C/19 Group Hardware Manual 日本語, 简体中文 Manual PDF 2.43 MB
R8C/Tiny Series Software Manual 简体中文 Manual PDF 1.38 MB
Application Notes & White Papers
PCB-Design for Improved EMC / EMV Application Note PDF 1.86 MB
Compiler Package Application Note: The application guide of Call Walker 日本語 Application Note PDF 243 KB
R8C/1x, 2x Series Standard Serial I/O Mode Protocol Specification 日本語 Application Note PDF 178 KB
R8C Family Implementing System Timer in MR8C/4 Application Note PDF 126 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
High-performance Embedded Workshop Application Note: Real-time OS aware debugging 日本語 Application Note PDF 750 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 Implement MR8C/4 in Embedded Applications Application Note PDF 760 KB
How to Implement Timeout Feature in MR8C4 Application Note PDF 152 KB
How to use Data Queue in place of Mailbox Application Note PDF 325 KB
General RTOS Concepts Application Note PDF 801 KB
Simple Flash API for R8C M16C M32C R32C Application Note PDF 302 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
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 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
General-purpose Program for Changing Blocks Application Note PDF 107 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
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
- 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 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
- Source code for Application Note on how to use Data Queue in place of Mailbox Sample Code ZIP 364 KB
- Simple Flash API for R8C M16C M32C R32C Sample Code ZIP 325 KB
- 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
- 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
- General-purpose Program for Changing Blocks 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
Tool News
[Notes] C/C++ Compiler Package for M16C and R8C Families 日本語 Tool News - Note PDF 141 KB
Other
Caution on using wait mode 日本語 Technical Update PDF 120 KB
Renesas Microcomputer R8C Family Selection Guide 日本語 Brochure PDF 2.56 MB
MCU M16C Family (R32C/M32C/M16C/R8C) Brochure PDF 29.76 MB
Renesas Semiconductor Lead-Free Packages Brochure PDF 1.32 MB
R8C/18 電流特性 (Icc vs Vcc (High-speed On-chip Oscillator Mode) / Operating Conditions Topr: 25 [degrees C] / R5F21184SP) Others PDF 11 KB
R8C/18 電流特性 (Icc vs Frecuency (Low-speed On-chip Oscillator Mode) / Operating Conditions Topr: 25 [degrees C] / R5F21184SP) Others PDF 9 KB
R8C/18 電流特性 (Icc vs Vcc (Low-speed On-chip Oscillator Mode) / Operating Conditions Topr: 25 [degrees C] / R5F21184SP) Others PDF 12 KB
R8C/18 入力特性 (VIL vs Vcc / Operating Conditions Topr: 25 [degrees C]) / R5F21184SP : P10-P17, P33-P35, P37, P42, P45-P47) Others PDF 9 KB
R8C/18 出力特性 (IOL vs VOL (Drive capacity HIGH) / Operating Conditions Topr: 25 [degrees C] / Vcc: 5 V, 4 V, 3 V / R5F21184SP : P10-P13) Others PDF 14 KB
R8C/18 出力特性 (IOL vs VOL (Drive capacity LOW) / Operating Conditions Topr: 25 [degrees C] / Vcc: 5 V, 4 V, 3 V / R5F21184SP : P10-P13) Others PDF 13 KB
R8C/18 出力特性 (IOL vs VOL (Drive capacity HIGH) / Operating Conditions Topr: 85, 25, -20, -40 [degrees C] / Vcc: 5 V / R5F21184SP, R5F21184DSP : P10-P13) Others PDF 17 KB
R8C/18 電流特性 (Icc vs f(XIN) (Vcc= 3 V) / Operating Conditions Topr: 25 [degrees C] / Active Mode: High-Speed, Medium-Speed: f(XIN)/2, f(XIN)/4, f(XIN)/8, f(XIN)/16 / R5F21184SP) Others PDF 9 KB
R8C/18 出力特性 (IOL vs VOL (Drive capacity LOW) / Operating Conditions Topr: 85, 25, -20, -40 [degrees C] / Vcc: 5 V / R5F21184SP, R5F21184DSP : P10-P13) Others PDF 15 KB
R8C/18 電流特性 (Icc vs f(XIN) (Vcc= 5 V) / Operating Conditions Topr: 25 [degrees C] / Active Mode: High-Speed, Medium-Speed: f(XIN)/2, f(XIN)/4, f(XIN)/8, f(XIN)/16 / R5F21184SP) Others PDF 9 KB
- 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