Overview
Description
RL78/L13 microcontrollers have a built-in segment LCD driver. Three LCD driving voltage generation methods (external resistance division, capacitive split, and internal voltage boost) are supported, corresponding to a variety of segment LCD panels. They realize low current consumptionNote 1: external resistance division: 1.61 μANote 2, and internal voltage boost: 1.42 μA, and capacitive split: 0.77 µA. With a lineup of 64/80-pin products supporting up to 376 segments, these microcontrollers are perfect for devices with built-in LCD panels such as home appliances and healthcare devices.
Note 1: Current (typ.) at 1/3 bias, subclock operation, HALT mode, and RTC operation.
Note 2: Resistance value for external resistance division = 1000 kΩ.
Features
- CPU: RL78 core, Max. 24MHz
- Voltage: 1.6V to 5.5V
- Package: 64 to 80-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 |
| SPI Serial EEPROM Driver Device Drivers for SPI Bus Serial EEPROM R1EX25xxx Series and HN58X25xxx Series
|
Serial Memory | Renesas |
| RL78 Web Simulator Right online tools to support initial evaluation of the low power consumption RL78 Family. Lineup: MCU Simulator Online and Current Consumption Calculator. Free of charge.
|
Simulator | 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 |
| I²C Serial EEPROM Driver Device Drivers for I²C Bus Serial EEPROM R1EX24xxx Series, R1EV24xxx Series and HN58X24xxx Series
|
Serial Memory | 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 |
| 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 |
| 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 |
|
26 items
|
||
Sample Code
Boards & Kits
Starter
RL78/L13-Starter-kit
Active
Renesas Starter Kit for RL78/L13
The Renesas Starter Kits for RL78/L13 is intended as a user-friendly introductory and evaluation tool for the RL78/L13 microcontroller. The board also provides a useful platform for evaluating the Renesas suite of development tools for coding and debugging, using CubeSuite+.
The purpose of the...
Reference Designs
Mini Power Monitor Reference Design
The Mini Power Monitor is a power meter that allows a user to accurately measure the power consumption of electric appliances. The mini power monitor uses an RL78/L13 low power consumption LCD MCU, dedicated energy metering chip, high-precision current and voltage sampling circuit, and an LCD to...
Recommended Documents:
Test This Board Remotely
Available on Lab on the Cloud, use our PC-based GUI to instantly start configuring and testing designs in our virtual lab, no physical board needed.
Evaluation
QB-R5F10WMG-TB
Active
RL78/L13 (R5F10WMGAFB) Target Board
As a CPU board usable in connection with the on-chip debugging emulator E2, E2 Lite, E1(discontinued product), this product achieves simple and easy evaluation of the target MCU.
Information on the discontinuation of E1 emulator production
We have already discontinued production of the E1...
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
Applied Filters:
Support
Support Communities
Get quick technical support online from Renesas Engineering Community technical staff.
Support Communities
-
Halt mode for RL78/L13
Hi, I'd like to make the device works intermittently to save the power consumption. I would like to know if the MCU is able to be woke up by a interval timer from the Halt/Sleep mode. And in the Sleep/Halt mode, the LCD module and ...
Nov 7, 2024 -
RL78/L13 IICA0 always return value of 0
Hello, I'd like to discuss about the issue I am facing of the I2C between RL78/L13 and EEPROM BR24G01FVM. Here is IICA0 configuration and clock setting: In the code, I am using R_IICA0_Master_Send and R_IICA0_Master_Receive API to send and receive data ...
Jun 2, 2024 -
RL78/L13 issue with controlling LCD
Basically I have multiple RL78/L13 boards and all of them are working properly but one isn`t and I have narrowed down the issue to when i`m setting the 4-time slice. When it isn`t set the screen works but shows gibberish as it`s default ...
Aug 17, 2022
FAQs
-
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
... G1F, RL78/G1G, RL78/G1H, RL78/G1M, RL78/G1N, RL78/G22, RL78/H1D, RL78/I1A, RL78/L12, RL78/L13 ✓: SelectableN/E: Not Eligible Note. It is selectable to read the conversion result register in either 24-bit or 16 ...
Nov 12, 2024
Videos & Training
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.