Overview
Description
RL78/I1B microcontrollers adapt various electricity meter metrologies for different regulations by country and realize efficient power measurement by the combination of low active current 96uA/MHz, standby current 0.66uA (Halt mode with 32kHz oscillator and RTC backup on), 24-bit ΔΣA/D converter, phase adjustment circuits and high pass filter. CPU clock frequency can be minimized, taking advantage of the efficient power measurement features, which include the low power ΔΣ A/D converter 0.53mA/ch. RL78/I1B microcontrollers have a +/- 1% high-accuracy high-speed on-chip oscillator with +/-0.05% frequency correction function. The benefit of the accurate on-chip oscillator keeps the system robust even when the external oscillator is stopped.
Features
- CPU: RL78 core, Max. 24MHz
- Voltage: 1.9V to 5.5V
- Package: 80 to 100-pin QFP
- Memory: SRAM Max. 8KB, Program Flash Max. 128KB
Comparison
Applications
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, RISC-V MCU]
|
Emulator | Renesas |
| E2 emulator Lite [RTE0T0002LKCE00000R] On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RL78, RX, RISC-V MCU]
|
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, RISC-V MCU, 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, RISC-V MCU Renesas Synergy, DA1453x, DA1459x, DA1469x, DA1470x, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver, V850, 78K0R, 78K0]
|
Programmer (Unit/SW) | Renesas |
| Crypto Library Robust encode library to ensure security for all types of system developments
|
Security / Crypto | 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 |
| FFT Library Fast Fourier Transform (FFT) Library
|
DSP / FFT | 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 |
| 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 |
| 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 |
| Reality AI Utilities Round-trip workflow for AI development and performance validation allowing to collect data, optimize models, and deploy directly to Renesas hardware
|
Solution Toolkit | Renesas |
|
22 items
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Sample Code
Boards & Kits
Evaluation
RTE510MPG0TGB00000R
Active
RL78/I1B Target Board
The RTE510MPG0TGB00000R is a target board used for evaluating microcontroller operations using the E1, the Renesas Electronics on-chip debug emulator with programming function.
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.
Product Options
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Support
Support Communities
Get quick technical support online from Renesas Engineering Community technical staff.
Support Communities
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RL78 I1B R5F10MMG , Required data flash and store 15 byte in this data flash memory
Dear Sir, i am using the R5F10MMG MCU in our project and development almost done, we required in end time of project data flash memory for save the 15 bytes in this data flash memory. Please guide me and help for this issues. Thanks & Regards Shivali Singh
Sep 2, 2021 -
RL78
Hi friends, I am working on (RL78/I1B - R510MMGD) Controller. I am facing problem on Internal RTC. Can u suggest me to solve this Problem? Initially, i set (i.e : mark -> set initial time and date) the RTC date and RTC time on Code generator. Then i Checked without ...
Oct 8, 2014 -
Emulator E2 lite for serial communication
Hi Team, Is it possible to use Emulator E2 lite connected to a RL78 target board to communicate to PC serial terminal (for e.g. I want to do some printf/sprintf from the target board and print on the PC's hyperterminal)? Can you guide with the process ...
Apr 28, 2023
FAQs
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RL78 Family: Reset signal generated by the power-on reset circuit (POR)
... G1H, RL78/G1M,RL78/G1N, RL78/G1P, RL78/G22, RL78/G23, RL78/G24, RL78/H1D, RL78/I1A, RL78/I1B, RL78/I1C, RL78/I1D, RL78/I1E, RL78/L12, RL78/L13, RL78/L1A, RL78/L1C Japanese
Apr 28, 2025 -
Reference Materials for Migration from 78K0/Kx2 to RL78
We have the following reference materials available. - How to replace a program for 78K0 with a program for RL78 Replacement Guide for 78K0 Family to RL78 Family (CcnvCA78K0) Software for converting a C source file for CA78K0 and CA78K0R to a C source file for CC-RL CcnvCA78K0 C Source ...
Dec 21, 2020 -
RL78 Family: Relationship between A/D Conversion Resolution and A/D Conversion Time
... ✓ (Note) ✓ ✓ Different B ✓ ✓ ✓ Same C ✓ ✓ Different D ✓ N/E E ✓ ✓ Different Group A: RL78/I1B, RL78/I1C, RL78/I1EGroup B: RL78/G23, RL78/G24Group C: RL78/G1A, RL78/G1P, RL78/ ...
Nov 12, 2024
Videos & Training
RL78 Quick Solutions
The easy-to-build RL78 Quick Solutions feature Renesas' ultra-low power RL78 MCUs and analog devices. These solutions showcase device combinations that improve design performance and power efficiency to support your product development.
Video List
News & Blog Posts
Blog Post
Feb 9, 2023
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