Overview

Description

The RL78/I1C microcomputer integrates the functions required for the metrology of smart electricity meters. They include 24-bit ΔΣ A/D converters, 32-bit Multiply-accumulator, Independent power supply real-time clock, Segment LCD driver supporting up to 8 com, and AES hardware engine that supports the DLMS standard. For single-phase two-wire meters, single-phase three-wire meters, and three-phase three-wire meters, 24-bit ΔΣ A/D converters (Max 4ch) are used for current and voltage sensing to achieve highly accurate power metrology.
Moreover, three-phase four-wire meters are possible to support by 100-pin QFP products, with ΔΣ A/D converters that are used for current sensing and Successive approximation A/D converter unit that is used for voltage sensing.
In addition, the products equipped with 512KB flash memory can also use the code flash area as two partitions, that is 256KB x 2 banks, independently. By Bank programming function in dual-bank mode and Bank swapping, the system can update the firmware without stopping the metrology operation throughout the new firmware downloading and even the bank swapping period.

Features

  • CPU: RL78 core, Max. 32MHz
  • Voltage: 1.7V to 5.5V
  • Package: 64 to 100-pin QFP
  • Memory: SRAM Max. 32KB, Program Flash Max. 512KB

Applications

Applications

  • Metering

Documentation

Type
Date
PDF 1.09 MB Datasheet
PDF 8.86 MB 日本語 Manual - Hardware
PDF 1022 KB Datasheet
PDF 9.20 MB 日本語 Manual - Hardware
PDF 1.73 MB 日本語 Technical Update
PDF 842 KB Other
PDF 13.59 MB 日本語 Manual - Hardware
PDF 188 KB Guide
PDF 2.17 MB 日本語 End Of Life Notice
PDF 994 KB 日本語 Other
PDF 11.44 MB 日本語 Brochure
PDF 8.04 MB 日本語 Brochure
PDF 797 KB 日本語 Application Note
PDF 823 KB 日本語 Application Note
PDF 820 KB 日本語 Application Note
PDF 430 KB 日本語 Technical Update
PDF 486 KB 日本語 Technical Update
PDF 1.70 MB 日本語 Manual - Development Tools
PDF 19.79 MB 日本語 Brochure
PDF 1.14 MB 日本語 Manual - Software
PDF 878 KB 日本語 Manual - Software
PDF 1.21 MB 日本語 Manual - Software
PDF 1.35 MB 日本語 Manual - Software
PDF 1.30 MB 日本語 Manual - Hardware
PDF 5.64 MB 日本語 Application Note
PDF 303 KB 日本語 , 简体中文 Flyer
PDF 2.26 MB 日本語 Manual - Software
PDF 1.02 MB 日本語 Product Change Notice
PDF 1.06 MB 日本語 Release Note
PDF 1.70 MB Manual - Software
PDF 1.57 MB Manual - Development Tools
PDF 1.14 MB Manual - Hardware
PDF 306 KB Overview
PDF 356 KB 日本語 Manual - Hardware
PDF 304 KB 日本語 Application Note
PDF 419 KB 日本語 Application Note
PDF 264 KB 日本語 Application Note
PDF 290 KB 日本語 Application Note
PDF 383 KB 日本語 Application Note
PDF 378 KB 日本語 Application Note
PDF 216 KB 日本語 Application Note
PDF 261 KB 日本語 Application Note
PDF 224 KB 日本語 Application Note
PDF 501 KB 日本語 Application Note
PDF 283 KB 日本語 Application Note
PDF 380 KB 日本語 Application Note
PDF 439 KB 日本語 Application Note
PDF 481 KB 日本語 Application Note
PDF 248 KB 日本語 Application Note
PDF 323 KB 日本語 Application Note
PDF 413 KB 日本語 Application Note
PDF 551 KB 日本語 Application Note
PDF 951 KB 日本語 Application Note
PDF 1.65 MB 日本語 Application Note
PDF 213 KB 日本語 Technical Update
PDF 417 KB 日本語 , 简体中文 Flyer
PDF 2.36 MB 日本語 Application Note
PDF 2.09 MB 日本語 Application Note
PDF 1.81 MB Application Note
PDF 10.28 MB 日本語 , 简体中文 Other
PDF 560 KB Application Note
PDF 620 KB 日本語 Technical Update
PDF 154 KB 日本語 Technical Update
PDF 725 KB 日本語 Technical Update
PDF 3.59 MB 日本語 Application Note
PDF 1.64 MB 日本語 , 简体中文 Application Note
PDF 4.86 MB 日本語 Product Change Notice
PDF 1.79 MB 日本語 Brochure
PDF 2.07 MB 日本語 Application Note
PDF 1.91 MB 日本語 Application Note
PDF 5.80 MB Brochure
PDF 144 KB 日本語 Technical Update
PDF 242 KB 日本語 , 简体中文 Application Note
PDF 5.27 MB Brochure
PDF 701 KB Application Note
PDF 1.21 MB 日本語 Application Note
PDF 1.10 MB Brochure
PDF 3.74 MB 日本語 Product Change Notice
PDF 380 KB 日本語 Technical Update
PDF 14.70 MB 日本語 General Reliability Literature
PDF 987 KB 日本語 , 简体中文 Application Note
PDF 186 KB 日本語 Technical Update
PDF 1.47 MB 日本語 , 简体中文 Application Note
PDF 1.46 MB 日本語 Product Change Notice
PDF 2.46 MB 日本語 Application Note
PDF 2.02 MB 日本語 Application Note
PDF 1.79 MB 日本語 Application Note
PDF 3.23 MB 日本語 Guide
PDF 3.19 MB 日本語 , 简体中文 Application Note
PDF 6.12 MB 日本語 Brochure
PDF 128 KB 日本語 Manual - Development Tools
PDF 4.62 MB Brochure
PDF 792 KB Application Note
PDF 1.02 MB 日本語 Other
PDF 1.42 MB Application Note
PDF 3.10 MB 日本語 Technical Update
PDF 1.04 MB 日本語 Application Note
PDF 3.57 MB Flyer
PDF 104 KB Application Note
PDF 540 KB Flyer
PDF 3.28 MB 日本語 , 简体中文 Application Note
PDF 230 KB 日本語 , 简体中文 Application Note
PDF 690 KB Application Note
103 items

Design & Development

Software & Tools

Software & Tools

Software title
Software type
Company
Code Generator Plug-in
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]
Code Generator Renesas
C Compiler Package for RL78 Family [CC-RL]
C Compiler Package for RL78 Family [IDE: CS+, e² studio]
Compiler/Assembler Renesas
E2 emulator [RTE0T00020KCE00000R]
On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RH850, R-Car D1, RL78, RX]
Emulator Renesas
E2 emulator Lite [RTE0T0002LKCE00000R]
On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RL78, RX]
Emulator Renesas
FAT File System [M3S-TFAT-Tiny] for the RL78 Family
FAT file system for RL78 Family
File System Renesas
RI78V4 V2 Real-time OS for RL78 Family
μITRON Specification real-time OS for RL78 Family [Required IDE : CS+]
ITRON OS Renesas
PG-FP6
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]
Programmer (Unit/SW) Renesas
Renesas Flash Programmer (Programming GUI)
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]
Programmer (Unit/SW) Renesas
Code Flash Libraries (Flash Self Programming Libraries)
Libraries for the reprogramming of code area flash memory, including EEPROM emulation libraries for the code areas of 78K-family products
Self Programming Library (Flash Library) Renesas
QE for Current Consumption: A Dedicated Tool for Current Measurement
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]
Solution Toolkit Renesas
Sound Playback/Compression System [M3S-S2-Tiny] for RL78 Family
Sound playback system for RL78 Family
Sound / Voice Renesas
RI78V4 V1 Real-time OS for RL78 Family and 78K0R
μITRON4.0 Specification real-time OS for RL78 Family and 78K0R [Required IDE : CS+]
ITRON OS Renesas
AP4, Applilet
Peripheral I/O driver generator compatible with third-party compilers and GNU compiler (for RZ, V850, RX, RL78, and 78K)
Code Generator Renesas
Data Flash Libraries
Libraries for the reprogramming of data flash memory, including EEPROM emulation libraries for the data areas of RL78-family products
Self Programming Library (Flash Library) Renesas
Simulator for e² studio of RL78 Family
Simulator for RL78 Family [Support IDE: e² studio] (Note: This product is included in the Renesas IDE "e² studio" and is not available separately.)
Simulator Renesas
CS+
Renesas integrated development environment (IDE) [Support MCU/MPU: RH850, V850, RX, RL78, 78K0R, 78K0] (Note: CS+ is not generally promoted to U.S. and European customers.) (Note: To use Smart Configurator on CS+ for RL78/G23 and RX family MCUs, install the Smart Configurator for each MCU family separately downloading from ”Design & Support” > ”Development Tools” > ”Smart Configurator”)
IDE and Coding Tool Renesas
e² studio - information for RL78 Family
Eclipse-based Renesas integrated development environment (IDE).
IDE and Coding Tool Renesas
Crypto Library
Robust encode library to ensure security for all types of system developments
Security / Crypto Renesas
SPI/QSPI Serial Flash Memory, QSPI Serial Phase Change Memory Driver
Device Driver for SPI and QSPI Serial Flash Memory and QSPI Serial Phase Change Memory
Serial Memory Renesas
IAR Embedded Workbench for Renesas RL78
IAR Embedded Workbench provides extensive support for RL78 devices. IAR Embedded Workbench is a complete set of development tools with leading optimization technology for creating powerful automotive applications.
IDE and Coding Tool IAR Systems
Renesas IAR Embedded Workbench Device-Support-Packages
Renesas IAR Embedded Workbench Device-Support-Packages include all device-specific files to be used with the Embedded Workbench IDE.
IDE and Coding Tool Renesas
21 items

Software Downloads

Type
Date
PDF 2.17 MB 日本語 End Of Life Notice
ZIP 33.62 MB 日本語 Upgrade - IDE
ZIP 15.81 MB 日本語 Upgrade - IDE
ZIP 12.67 MB 日本語 Upgrade - IDE
ZIP 15.80 MB 日本語 Upgrade - IDE
ZIP 289 KB 日本語 Upgrade - Programmer
ZIP 56.45 MB 日本語 Upgrade - Programmer
ZIP 1.64 MB 日本語 Upgrade - Programmer
ZIP 8 KB 日本語 Upgrade - Programmer
EXE 134.85 MB 日本語 Upgrade - Compiler
EXE 3.35 MB 日本語 Upgrade - Compiler
EXE 18.81 MB 日本語 Upgrade - Compiler
ZIP 2.47 MB 日本語 Upgrade - OS
ZIP 726.55 MB 日本語 Upgrade - IDE
ZIP 14.06 MB 日本語 Upgrade - OS
EXE 58.78 MB 日本語 Upgrade - Programmer
ZIP 5.07 MB 日本語 Upgrade - IDE
ZIP 2.54 MB 日本語 Upgrade - OS
18 items

Sample Code

Sample Code

Filters
Title Type Date Date
ZIP 18.57 MB 日本語 Function: Programmer Sample Code
ZIP 26.69 MB 日本語 Function: Programmer Sample Code
ZIP 18.63 MB 日本語 Function: Programmer Sample Code
[Toolchains=CC-RL|v1.10.00;ICCRL78|4.21.1.2409;LLVM for Renesas RL78|10.0.0.202203]
ZIP 2.00 MB
Application: Consumer Electronics, Industrial
Compiler: CC-RL, ICCRL78, LLVM Function: Driver or Library IDE: CS+, e2 studio, IAR EWRL78
Sample Code
ZIP 637 KB
Application: Consumer Electronics, Industrial, IoT Applications
Compiler: ICCRL78 IDE: IAR EWRL78
Sample Code
ZIP 5.14 MB Sample Code
ZIP 2.92 MB 日本語
Application: Consumer Electronics, Industrial, IoT Applications
Compiler: CC-RL, ICCRL78 Function: Application Example, Other peripherals IDE: CS+, e2 studio, IAR EWRL78
Sample Code
ZIP 2.96 MB Sample Code
ZIP 2.86 MB Sample Code
ZIP 2.37 MB 日本語 Compiler: CA78K0R IDE: CS+ Sample Code
ZIP 14.12 MB 日本語 Compiler: CC-RL IDE: CS+ Sample Code
ZIP 3.52 MB 日本語 Compiler: CC-RL IDE: CS+ Sample Code
ZIP 1.42 MB Compiler: CC-RL IDE: CS+ for CC, e2 studio Sample Code
ZIP 2.08 MB 日本語 Compiler: CC-RL IDE: CS+ for CC, e2 studio Sample Code
ZIP 647 KB IDE: CS+ Sample Code
ZIP 22.37 MB Compiler: CC-RL IDE: e2 studio Sample Code
16 items

Boards & Kits

Boards & Kits

Models

Support

RL78/I1C Value Proposition with Its Continuous Metrology FOTA Technology

News & Blog Posts

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Lab on the Cloud

Lab on the Cloud

Renesas' Lab on the Cloud is an online environment where Renesas solutions, including popular evaluation boards, winning combinations and software, are hosted in a remote lab that customers access and test online.

Single Phase Energy Meter

With this lab, users can set various AC input and load conditions to measure error percentage with the Smart DLMS-based 1-phase energy meter solution, where communication with a meter through DLMS can also be observed.