The RL78/I1E microcontroller is an intelligent, flexible analog MCU suitable for countless industrial and medical sensing applications such as flow measurement, strain gauges, pressure or temperature sensing. With enhanced analog features such as configurable OpAmps with programmable gain, supporting inverting, non-inverting topologies, or instrumentation amplifers, the RL78/I1E can be a platform for different types of sensors. The RL78/I1E features a 24-bit delta-sigma A/D, and a separate 10-bit A/D block, with a 12-bit D/A. The package line up for RL78/I1E MCU goes down to 4 mm x 4 mm or 5 mm x 5 mm reducing PCB footprint. Operating temperature up to 125°C makes it an ideal solution for the harshest of environments.

Features

  • CPU: RL78 core, Max. 32MHz
  • Voltage: 2.4V to 5.5V
  • Package: 36-pin BGA, 32-pin QFN
  • Memory: SRAM Max. 8KB, Program Flash Max. 32KB

Applications

  • Healthcare
  • Human Machine Interface

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
RL78/I1E Datasheet Datasheet PDF 1.09 MB
User Guides & Manuals
List of MCUs supported by PG-FP6 日本語 Manual PDF 216 KB
List of MCUs supported by Renesas Flash Programmer V3 日本語 Manual PDF 168 KB
List of MCUs supported by PG-FP5 日本語 Manual PDF 214 KB
Renesas Flash Programmer V3.08 Flash memory programming software User's Manual 日本語 Manual PDF 973 KB
PG-FP6 V1.05 Flash Memory Programmer User's Manual 日本語 Manual PDF 3.13 MB
CS+ V8.04.00 Integrated Development Environment User's Manual: RL78 Debug Tool 日本語 Manual PDF 5.76 MB
CS+ V8.04.00 Integrated Development Environment User's Manual: Project Operation 日本語 Manual PDF 5.50 MB
- EEPROM Emulation Library Type T01, European Release, RL78 Family Manual PDF 923 KB
- Data Flash Access Library FDL-T01 RL78 Series Manual PDF 498 KB
RL78/I1E User's Manual: Hardware 日本語 Manual PDF 10.75 MB
RL78 Software Migration Guide CS+ to e2 studio Migration (CC-RL) 日本語 Guide PDF 3.23 MB
RL78 Family EEPROM Emulation Library Pack01 Japanese Release user's manual 日本語 Manual PDF 2.16 MB
RL78 family User's Manual: Software 日本語 Manual PDF 1.45 MB
Application Notes & White Papers
- RL78/G14 Modbus ASCII/RTU 日本語 Application Note PDF 1.77 MB
RL78/G14 Modbus ASCII/RTU 日本語 Application Note PDF 1.77 MB
PG-FP6 Usage of Communications Commands 日本語 Application Note PDF 369 KB
Renesas Flash Programmer Usage from the Command Line 日本語 Application Note PDF 208 KB
Bio Sensing Software Platform ECG/PPG Evaluation Kit PTT Application 日本語 Application Note PDF 372 KB
- Bio Sensing Software Platform ECG/PPG Evaluation Kit PTT Application 日本語 Application Note PDF 372 KB
RL78/G14, R8C/36M Group Migration Guide from R8C to RL78: Timer RG 日本語 Application Note PDF 661 KB
- RL78/G14, R8C/36M Group Migration Guide from R8C to RL78: Timer RG 日本語 Application Note PDF 661 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
PCB-Design for Improved EMC / EMV Application Note PDF 1.86 MB
- RL78 PWM filtered output to create DAC DC output Application Note PDF 1.38 MB
RL78 PWM filtered output to create DAC DC output Application Note PDF 1.38 MB
Current Consumption Tuning Solution for RL78 family (E2 Emulator,CS+) 日本語 Application Note PDF 1.91 MB
Current Consumption Tuning Solution for RL78 family (E2 Emulator, e² studio) 日本語 Application Note PDF 2.07 MB
RL78 Family C compiler CC-RL Programming Techniques 日本語 Application Note PDF 1.21 MB
Replacement Guide for R8C Family to RL78 Family (CcnvNC30) 日本語, 简体中文 Application Note PDF 987 KB
Replacement Guide from 78K0 Family to RL78 Family (CcnvCA78K0) 日本語, 简体中文 Application Note PDF 1.47 MB
- RL78/I1E Serial Array Unit (UART Communication) CC-RL 日本語 Application Note PDF 304 KB
RL78/I1E Serial Array Unit (UART Communication) CC-RL 日本語 Application Note PDF 304 KB
RX Family, RL78 Family, 78K0R/Kx3-L Renesas R1EX25xxx Series Serial EEPROM Control Software 日本語 Application Note PDF 1.79 MB
RX Family, RL78 Family, 78K0R/Kx3-L Micron Technology M25P Series Serial Flash memory Control Software 日本語 Application Note PDF 2.46 MB
RX Family, RL78 Family, 78K0R/Kx3-L Micron Technology M45PE Series Serial Flash memory Control Software 日本語 Application Note PDF 2.02 MB
- RL78/I1E Strain Gauge PC Application Software Manual 日本語 Application Note PDF 495 KB
RL78/I1E Strain Gauge PC Application Software Manual 日本語 Application Note PDF 495 KB
RL78 Family SPI mode MultiMediaCard Driver: Introduction Guide 日本語 Application Note PDF 344 KB
RL78 Family Open Source FAT File System M3S-TFAT-Tiny: Introduction Guide 日本語 Application Note PDF 189 KB
RL78 Family FFT Library: Introduction Guide 日本語 Application Note PDF 131 KB
RL78 Family Sound Playback/Compression System (Original ADPCM Codec) M3S-S2-Tiny: Introduction Guide 日本語 Application Note PDF 153 KB
RL78 Family VDE Certified IEC60730/60335 Self Test Library Application Note PDF 1.42 MB
RL78 Minimizing Power Consumption when Sensing Switch Inputs Application Note PDF 104 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
Code Generator Common (CS+ for CC) V1.19.00 日本語 Software ZIP 8.74 MB
Code Generator Common (CS+ for CA,CX) V1.16.00 日本語 Software ZIP 7.85 MB
Code Generator for RL78 (CS+ for CA,CX) V2.20.00 日本語 Software ZIP 33.62 MB
Code Generator for RL78 (CS+ for CC) V2.20.00 日本語 Upgrade - IDE ZIP 33.62 MB
e² studio 2020-10 Linux Host 日本語 Upgrade - IDE XZ 570.04 MB
[Free-of-charge edition] Renesas Flash Programmer V3.08.00 Linux edition 日本語 Evaluation Software ZIP 25.55 MB
Renesas Flash Programmer V3.08.00 Upgrade Linux edition 日本語 Upgrade - Programmer ZIP 25.54 MB
[Free-of-charge edition] Renesas Flash Programmer V3.08.00 日本語 Evaluation Software ZIP 74.85 MB
Renesas Flash Programmer V3.08.00 Upgrade 日本語 Upgrade - Programmer ZIP 74.85 MB
Programming GUI for PG-FP6 (FP6 Terminal) V1.05.00 日本語 Upgrade - Programmer ZIP 54.84 MB
e² studio 2020-10 installer (Offline installer) 日本語 Upgrade - IDE EXE 1,618.03 MB
[Evaluation Software] CS+ for CC V8.04.00 (Single Download) 日本語 Evaluation Software EXE 688.19 MB
[Evaluation Software] CS+ for CA,CX V4.04.00(2020.07) (Single Download) 日本語 Evaluation Software ZIP 458.56 MB
CS+ QE V9.04.00 Upgrade - IDE ZIP 4.02 MB
CS+ QE V9.04.00 Upgrade - IDE EXE 4.58 MB
RL78/G14 Modbus ASCII/RTU Sample Code ZIP 3.10 MB
- RL78/G14 Modbus ASCII/RTU Sample Code ZIP 3.10 MB
e² studio 2020-04 installer (Offline installer) 日本語 Evaluation Software EXE 1,263.99 MB
e² studio V7.8.0 installer (Offline installer) 日本語 Evaluation Software EXE 1,396.16 MB
Update Manager V2.03.01 日本語 Upgrade - IDE ZIP 3.44 MB
CS+ for CA,CX common program V4.04.00 日本語 Upgrade - IDE EXE 197.40 MB
AP4 for RL78 V1.18.00 日本語 Software EXE 31.84 MB
Applilet3 for RL78 V1.18.00 日本語 Software EXE 25.88 MB
Code Generator for RL78 (CS+ for CC) V2.19.00 日本語 Upgrade - IDE EXE 33.33 MB
Code Generator Common (CS+ for CA,CX) V1.15.00 日本語 Software EXE 8.41 MB
Code Generator for RL78 (CS+ for CA,CX) V2.19.00 日本語 Software EXE 33.34 MB
RL78 Compiler CC-RL V1.09.00 日本語 Upgrade - Compiler EXE 16.88 MB
Software for floating license management V2.03.01 日本語 Upgrade - IDE EXE 31.41 MB
RL78 Family C Compiler Package V1 (without IDE) V1.09.00 日本語 Evaluation Software EXE 19.83 MB
- Bio Sensing Software Platform ECG/PPG Evaluation Kit PTT Application 日本語 Sample Code ZIP 5.23 MB
Bio Sensing Software Platform ECG/PPG Evaluation Kit PTT Application 日本語 Sample Code ZIP 5.23 MB
Programming GUI for PG-FP5 V2.17 日本語 Upgrade - Programmer EXE 56.68 MB
Firmware for PG-FP5 V2.17 日本語 Upgrade - Programmer ZIP 289 KB
USB Driver for Renesas MCU Tools V2.77.00 (for 64-bit version of Windows OS) 日本語 Upgrade - IDE EXE 3.80 MB
USB Driver for Renesas MCU Tools(E2,E2 Lite,IE850,IE850A,PG-FP5) V2.77.00(for 32-bit version of Windows OS) 日本語 Upgrade - IDE EXE 3.64 MB
Data Flash Library Type04 Package Ver.2.00 for the RL78 Family [for the CA78K0R/CC-RL Compiler] 日本語 Upgrade - Programmer ZIP 1.55 MB
- RL78/G14, R8C/36M Group Migration Guide from R8C to RL78: Timer RG Sample Code ZIP 1.04 MB
- RL78/G14、R8C/36Mグループ R8CからRL78への移行ガイド:タイマRG Sample Code ZIP 1.53 MB
RL78/G14, R8C/36M Group Migration Guide from R8C to RL78: Timer RG Sample Code ZIP 1.04 MB
- 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
e² studio 6.3.0 installer (Offline installer) 日本語 Evaluation Software EXE 952.89 MB
EEPROM Emulation Library Pack01 Package Ver.2.10 (for CA78K0R Compiler) and Data Flash Access Library Type T01 for RL78 Family 日本語 Upgrade - Programmer ZIP 1.59 MB
CS+ for CA,CX Device Information for RL78 V6.01.00 日本語 Upgrade - IDE EXE 16.89 MB
EEPROM Emulation Library Pack02 Package Ver.2.00(for CA78K0R/CC-RL Compiler) for RL78 Family 日本語 Upgrade - Programmer ZIP 7.49 MB
RL78 PWM filtered output to create DAC DC output Sample Code ZIP 1.52 MB
- RL78 PWM filtered output to create DAC DC output Sample Code ZIP 1.52 MB
- Replacement Guide for R8C Family to RL78 Family (CcnvNC30) Sample Code ZIP 1.42 MB
- R8CファミリからRL78ファミリへの置き換えガイド(CcnvNC30) Sample Code ZIP 2.86 MB
- 从R8C转至RL78的迁移指南(CcnvNC30) Sample Code ZIP 1.39 MB
- Replacement Guide from 78K0 Family to RL78 Family (CcnvCA78K0) 日本語 Sample Code ZIP 2.08 MB
- 从78K0转至RL78的迁移指南(CcnvCA78K0) Sample Code ZIP 2.32 MB
RL78/I1E Serial Array Unit (UART Communication) CC-RL 日本語 Sample Code ZIP 662 KB
- RL78/I1E Serial Array Unit (UART Communication) CC-RL 日本語 Sample Code ZIP 662 KB
Software for Floating License Management V1.00.00 日本語 Upgrade - IDE EXE 134.85 MB
Renesas Tool License Manager V1.25.00 日本語 Upgrade - IDE EXE 3.35 MB
- RX Family, RL78 Family, 78K0R/Kx3-L Renesas R1EX25xxx Series Serial EEPROM Control Software 日本語 Sample Code ZIP 1.80 MB
- RX Family, RL78 Family, 78K0R/Kx3-L Micron Technology M25P Series Serial Flash memory Control Software 日本語 Sample Code ZIP 2.47 MB
- RX Family, RL78 Family, 78K0R/Kx3-L Micron Technology M45PE Series Serial Flash memory Control Software 日本語 Sample Code ZIP 2.03 MB
RL78,78K0R Compiler CA78K0R V1.72 日本語 Upgrade - Compiler EXE 18.81 MB
Renesas Flash Programmer V2.05.03 Upgrade 日本語 Upgrade - Programmer EXE 47.62 MB
[Free-of-charge edition] Renesas Flash Programmer V2.05.03 日本語 Evaluation Software EXE 47.62 MB
RL78/I1E Strain Gauge PC Application Software Manual 日本語 Sample Code ZIP 237 KB
- RL78/I1E Strain Gauge PC Application Software Manual 日本語 Sample Code ZIP 237 KB
- RL78 Family SPI mode MultiMediaCard Driver: Introduction Guide 日本語 Sample Code ZIP 1.29 MB
- RL78 Family Open Source FAT File System M3S-TFAT-Tiny: Introduction Guide 日本語 Sample Code ZIP 1.83 MB
- RL78 Family FFT Library: Introduction Guide 日本語 Sample Code ZIP 1.60 MB
- RL78 Family Sound Playback/Compression System (Original ADPCM Codec) M3S-S2-Tiny: Introduction Guide 日本語 Sample Code ZIP 1.51 MB
Programming GUI for PG-FP5 V2.13 Upgrade - Programmer EXE 58.78 MB
- RL78 Family VDE Certified IEC60730/60335 Self Test Library Sample Code ZIP 3.55 MB
FPGA data for PG-FP5 V4 日本語 Upgrade - Programmer ZIP 162 KB
Tool News
[Notification] Flash Programmer Survey Invitation 日本語 Tool News - Notification PDF 29 KB
[Upgrade to revision] CS+ Code Generator for RL78 (CS+ for CC) V2.20.00, CS+ Code Generator for RL78 (CS+ for CA,CX) V2.20.00, e² studio Code Generator Plug-in V2.16.0 日本語 Tool News - Release PDF 178 KB
[Featured Tool] Minimize the time for optimizing current consumption with IAR Embedded Workbench®! Introducing the E2 Emulator current consumption measuring function 日本語 Tool News - Featured Tool PDF 260 KB
[Upgraded to version] e² studio 2020-10 日本語 Tool News - Release PDF 160 KB
[Upgrade to revision] Renesas Flash Programmer V3.08.00 日本語 Tool News - Release PDF 83 KB
[Notes] On-chip Debugging Emulator E2 Emulator 日本語 Tool News - Note PDF 144 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
[Upgraded to version] e² studio 2020-07 日本語 Tool News - Release PDF 159 KB
[Upgrade to revision] Renesas Flash Programmer V3.06.02 日本語 Tool News - Release PDF 80 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] CS+ Integrated Development Environment V8.04.00 日本語 Tool News - Release PDF 491 KB
[Notification] Renesas Flash Programmer V3.06.01 Addition of Supported Devices and End of Device Support 日本語 Tool News - Notification PDF 28 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
Other
Industrial Automation Brochure 日本語, 简体中文 Brochure PDF 7.93 MB
e² studio 2020-10 Release Note Release Note PDF 2.46 MB
CS+ Code Generator for RL78 (CS+ for CC/CA,CX) V2.20.00, e² studio Code Generator Plug-in V2.17.0 Release Note 日本語 Release Note PDF 708 KB
PG-FP6 Flash Memory Programmer Release Note 日本語 Release Note PDF 269 KB
Renesas Flash Programmer V3.08.00 Release Notes 日本語 Release Note PDF 283 KB
e² studio 2020-07 Release Note Release Note PDF 1.52 MB
CS+ for CC V8.04.00 Release Note 日本語 Release Note PDF 256 KB
CS+ Integrated Development Environment Package V8.04.00 Release Note 日本語 Release Note PDF 956 KB
CS+ Code Generator for RL78 (CS+ for CC/CA,CX) V2.19.00, e² studio Code Generator Plug-in V2.15.1 / V2.16.100, AP4 for RL78 V1.18.00, Applilet3 for RL78 V1.18.00 Release Note 日本語 Release Note PDF 695 KB
[Flyer] E2Emulator[RTE0T00020KCE00000R] 日本語, 简体中文 Flyer PDF 381 KB
[Flyer] Renesas Software and Tools Flash Memory Programmer PG-FP6 日本語 Flyer PDF 417 KB
Building Automation Brochure 日本語 Brochure PDF 6.65 MB
Renesas Software and Tools Flash Memory Programmer PG-FP6 日本語 Brochure PDF 619 KB
Renesas RL78 Family Microcontrollers Brochure 日本語 Flyer PDF 5.89 MB
Restriction regarding Watchdog timer interrupt 日本語 Technical Update PDF 154 KB
Powered Up and Ready to Go Renesas/Intersil Joint Brochure Brochure PDF 5.27 MB
RL78The True Low Power Microcontroller Platform Brochure PDF 1.10 MB
[Flyer] Renesas Software and Tools e² studio: Integrated Development Environment Based on Eclipse Flyer PDF 930 KB
[Flyer] Renesas Software and Tools C Compiler Package for RL78 Family 日本語 Flyer PDF 414 KB
Renesas General-Purpose Microcontrollers/Microprocessors Lineup Catalog 日本語 Brochure PDF 6.12 MB
Parameter File for RL78/I1E group: PR5-R5F11C V1.00 日本語 Software & Tools - Others ZIP 4 KB
[Trial Software] RI78V4 V2.00.00 Real-time OS for RL78 Family (supported by CS+) 日本語 Software & Tools - Others ZIP 13.98 MB
Renesas RL78 Family MCU Brochure PDF 4.62 MB
RL78 - The Ultimate Low Power Microcontroller Platform Flyer PDF 3.57 MB
RL78/I1A The Ultimate Lighting Microcontroller Flyer PDF 540 KB

Software / Tools

Title Type Description Company
Code Generator Plug-in Code Generator Automatic driver generation tool for internal peripheral I/O modules through GUI settings [Standard features for Renesas IDE "e² studio" and CS+] [Support MCU/MPU: RL78, V850, 78K, RX] Renesas
AP4, Applilet Code Generator Peripheral I/O driver generator compatible with third-party compilers and GNU compiler (for RZ, V850, RX, RL78, and 78K) Renesas
Code Flash Libraries (Flash Self Programming Libraries) Self Programming Library (Flash Library) Libraries for the reprogramming of code area flash memory, including EEPROM emulation libraries for the code areas of 78K-family products Renesas
Data Flash Libraries Self Programming Library (Flash Library) Libraries for the reprogramming of data flash memory, including EEPROM emulation libraries for the data areas of RL78-family products Renesas
FAT File System [M3S-TFAT-Tiny] for the RL78 Family File System FAT file system for RL78 Family Renesas
Sound Playback/Compression System [M3S-S2-Tiny] for RL78 Family Sound / Voice Sound playback system for RL78 Family Renesas
RI78V4 V2 Real-time OS for RL78 Family ITRON OS μITRON Specification real-time OS for RL78 Family [Required IDE : CS+]

Renesas
RI78V4 V1 Real-time OS for RL78 Family and 78K0R ITRON OS μITRON4.0 Specification real-time OS for RL78 Family and 78K0R [Required IDE : CS+] Renesas
C Compiler Package for RL78 Family Compiler/Assembler C Compiler Package for RL78 Family [Compiler: CC-RL] [IDE: without IDE (for using "e2 studio") or with CS+] Renesas
E2 emulator [RTE0T00020KCE00000R] Emulator On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RH850, R-Car D1, RL78, RX] Renesas
E2 emulator Lite [RTE0T0002LKCE00000R] Emulator On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RL78, RX] Renesas
CS+ IDE and Coding Tool Renesas integrated development environment (IDE) [Support MCU/MPU: RH850, V850, RX, RL78, 78K0R, 78K0] Important: CS+ is not generally promoted to U.S. and European customers. Renesas
e² studio IDE and Coding Tool Eclipse-based Renesas integrated development environment (IDE). (Note: You need to install compiler separately as an additional software) Renesas
PG-FP6 Programmer (Unit/SW) Flash memory programmer [Programming software: Dedicated GUI-based software, the "FP6 Terminal"] [Support MCU/MPU and devices: RA, RE, RX, RL78, RH850, Renesas Synergy, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver, SuperH RISC engine, V850, 78K, R8C] Renesas
Renesas Flash Programmer (Programming GUI) Programmer (Unit/SW) Flash memory programming software [Support MCU/MPU and devices: RA, RE, RX, RL78, RH850, Renesas Synergy, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver, V850, 78KR, 78K0] Renesas
Simulator for e² studio of RL78 Family Simulator Simulator for RL78 Family [Support IDE: e2 studio] (Note: This product is included in the Renesas IDE "e2 studio" and is not available separately.) Renesas
QE for Current Consumption: A Dedicated Tool for Current Measurement Solution Toolkit Development assistance tool helps to shorten the times taken in operations for the tuning of currents drawn. [Standard item in the "e² studio" and CS+ (CS+ for CC only) IDEs] [Support MCU/MPU: RX, RL78] Renesas