The R8C/38T-A Group of single-chip MCUs incorporates the R8C CPU core, which provides sophisticated instructions for a high level of efficiency.

The R8C/38T-A Group of single-chip microcontrollers (MCUs) incorporates the R8C CPU core, which provides sophisticated instructions for a high level of efficiency. With 1Mb of address space, the CPU core is capable of executing instructions at high speed. In addition, it features a multiplier for high-speed arithmetic processing.

Power consumption is low, and additional power control is possible by selecting the operating mode. The R8C/38TA Group is also designed to maximize EMI/EMS performance. Integration of many peripheral functions, including multifunction timer and serial interface on the same chip, reduces the number of system components. The R8C/38T-A Group integrates a touch sensor control unit, which enables detection of the floating capacitance of the electrostatic capacitive touch electrode. This group also has on-chip data flash (1KB × 4 blocks) with background operation (BGO) function.

Applications

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

Product Options

Part Number Part Status Pkg. Type Carrier Type Buy Sample
R5F2138ASDFP#30
Not Recommended for New Designs LFQFP Tray/Embossed tape
Availability
R5F2138ASDFP#V0
Obsolete LFQFP Tray/Embossed tape
Availability
R5F2138ASNFP#30
Not Recommended for New Designs LFQFP Tray/Embossed tape
Availability
R5F2138ASNFP#V0
Obsolete LFQFP Tray/Embossed tape
Availability
R5F21388SDFP#30
Not Recommended for New Designs LFQFP Tray/Embossed tape
Availability
R5F21388SDFP#V0
Obsolete LFQFP Tray/Embossed tape
Availability
R5F2138CSDFP#30
Not Recommended for New Designs LFQFP Tray/Embossed tape
Availability
R5F2138CSDFP#V0
Obsolete LFQFP Tray/Embossed tape
Availability
R5F2138CSNFP#30
Not Recommended for New Designs LFQFP Tray/Embossed tape
Availability
R5F2138CSNFP#V0
Obsolete LFQFP Tray/Embossed tape
Availability
R5F21388SNFP#30
Not Recommended for New Designs LFQFP Tray/Embossed tape
Availability
R5F21388SNFP#V0
Obsolete LFQFP Tray/Embossed tape
Availability

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
R8C/38T-A Group Datasheet 日本語 Datasheet PDF 481 KB
User Guides & Manuals
PG-FP6 Gang Programmer V1.01 User's Manual 日本語 Manual PDF 630 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
R8C/38T-A Group User's Manual: Hardware 日本語 Manual PDF 5.92 MB
E1/E20 Emulator Additional Document for User's Manual (Notes on Connecting R8C/5x Series and R8C/3xT-A Series) 日本語 Manual PDF 3.49 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
Technical Updates
Caution on using wait mode 日本語 Technical Update PDF 115 KB
Caution on using wait mode and stop mode 日本語 Technical Update PDF 263 KB
Precaution of using DTC(Data Transfer Controller) 日本語 Technical Update PDF 327 KB
Procedure for Setting Bits Associated with Voltage Monitor 1 Interrupt Procedure for Setting Bits Associated with Voltage Monitor 2 Interrupt Revision of contents 日本語 Technical Update PDF 244 KB
Note on Reading the RSTFR Register 日本語 Technical Update PDF 18 KB
Application Notes & White Papers
Compiler Package Application Note: The application guide of Call Walker 日本語 Application Note PDF 243 KB
R8C/38T-A Group Random measurement: Touch detection using random timing 日本語 Application Note PDF 253 KB
R8C/38T-A Group Application of Capacitive touch technology to a metal panel 日本語 Application Note PDF 302 KB
R8C/38T-A Group Touch API Reference (R8C/38T-A Group) 日本語 Application Note PDF 911 KB
R8C/38T-A Group Wheel operation technique of touch key 日本語 Application Note PDF 268 KB
R8C/38T-A Group Water film effect on a cap touch key 日本語 Application Note PDF 172 KB
R8C/38T-A Group MW broadcasting noise immunity improvement by SCU adjustment 日本語 Application Note PDF 1.17 MB
R8C/38T-A Group Touch sensor IC principle of detection and adjustment of the external circuit 日本語 Application Note PDF 853 KB
R8C/38T-A Group Cap Touch Sensitivity Adjustment Flow Chart 日本語 Application Note PDF 1.19 MB
R8C/33T Group Workbench4 Manual Application Note PDF 3.50 MB
R8C/33T Group Base of electrostatic capacitance method touch key 日本語 Application Note PDF 564 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
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 Compressing BCD Application Note PDF 106 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
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
[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
Parameter File for R8C/3x series: PR5-R8C3X V1.06 日本語 Upgrade - Programmer ZIP 117 KB
[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 (Light version) Upgrade 日本語 Upgrade - Programmer EXE 10.45 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 01 (Light version) Upgrade 日本語 Upgrade - Programmer EXE 10.47 MB
Flash Development Toolkit V.4.09 Release 01 Upgrade 日本語 Upgrade - Programmer EXE 41.03 MB
Device File Updater for M16C series and R8C Family V.1.15 日本語 Upgrade - IDE EXE 7.27 MB
Flash Development Toolkit V.4.09 Release 00 Upgrade 日本語 Upgrade - Programmer EXE 41.03 MB
E1, E20 Self-Checking Program V.1.01.00 日本語 Software EXE 1.50 MB
Flash Development Toolkit V.4.08 Release 02 (Light version) Upgrade 日本語 Upgrade - Programmer EXE 3.22 MB
Flash Development Toolkit V.4.08 Release 02 Upgrade 日本語 Upgrade - Programmer EXE 39.98 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
Renesas E-Series USB Driver V.1.02 Release 00 日本語 Upgrade - IDE EXE 3.25 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
R8C E1/E20 Emulator debugger V.1.01.00 日本語 Upgrade - Debugger EXE 111.40 MB
High-performance Embedded Workshop Real-Time OS Aware Debugging Upgrade module 日本語 Upgrade - OS ZIP 119 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
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
Tcl/Tk HEW Sample control program 日本語 Sample Code ZIP 9 KB
Tcl Sample Program 日本語 Sample Code ZIP 17 KB
HEW Target Server (COM extension function) Sample Program 日本語 Sample Code ZIP 5.64 MB
Tk Sample Program 日本語 Sample Code ZIP 14 KB
- General-purpose Program for Compressing BCD Sample Code ZIP 51 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
- 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
[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
[Notification] Flash Programmer Survey Invitation 日本語 Tool News - Notification PDF 29 KB
[Notes] C/C++ Compiler Package for M16C and R8C Families 日本語 Tool News - Note PDF 141 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
[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
[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
[Upgrade to revision] Programming GUI for PG-FP6 Flash Memory Programmer (FP6 Terminal) V1.04.00 日本語 Tool News - Release PDF 642 KB
[Released on the Web] Parameter File for PG-FP5 Flash Memory Programmer 日本語 Tool News - Release PDF 120 KB
[Upgrade to revision] Programming GUI for PG-FP6 Flash Memory Programmer (FP6 Terminal) V1.03.03 日本語 Tool News - Release PDF 109 KB
[Notification] Take Part in Renesas Flash Programmer Product Survey 日本語 Tool News - Notification PDF 77 KB
[Released on the Web] CcnvNC30 C Source Code Converter: Tool for Assistance in Porting from the NC30 Compiler for the M16C Series and R8C Family to the CC-RL Compiler for the RL78 Family 日本語 Tool News - Release PDF 172 KB
Other
[Flyer] Renesas Software and Tools Flash Memory Programmer PG-FP6 日本語, 简体中文 Flyer PDF 417 KB
Workbench5 Software 日本語 Software & Tools - Others ZIP 10.12 MB
R8C/38T-A Group Register Definition 日本語 Software & Tools - Others ZIP 45 KB
R8C/38T-A Pull-up MOS Current (-lp vs Vcc) Other PDF 11 KB
R8C/38T-A A/D Converter Characteristics (A/D characteristics / A-D accuracy 10 bit) Other PDF 432 KB
R8C/38T-A Low-speed On-chip Oscillator Characteristics (Low-speed on-chip oscillator characteristics / Frequency VS Topr / Frequency VS Vcc) Other PDF 15 KB
R8C/38T-A Current Consumption (Current Consumption / Icc VS f(XIN) / Icc VS Topr / Icc VS Vcc / Aicc vs Avcc) Other PDF 157 KB
R8C/38T-A Output Characteristics (Output port characteristics / VOH VS Vcc / VOL VS Vcc / IOH VS VOH / IOL VS VOL) Other PDF 143 KB
R8C/38T-A Input Characteristics (Input port characteristics / VIH VS Vcc / VIL VS Vcc) Other PDF 15 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
- 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