Overview
Description
RL78/F13 microcontrollers are successors to the 78K0R and R8C, are available in a 20 to 80-pin, 16KB to 128KB flash memory lineup and realize the industry's lowest level of consumption current. They have a built-in CAN module and LIN module for automotive interfaces, and in addition to the functional safety features, a RAM ECC function, PLL lock function, port output state monitoring, stack overflow detection, dedicated WDT oscillator and more have also been added. Since a more highly reliable system can be built, these microcontrollers can be used for industrial applications and of course automotive applications.
Features
- CPU: RL78 core, Max. 32MHz
- Voltage: 2.7V to 5.5V
- Package: 32 to 48-pin HVQFN, 48 to 80-pin LFQFP, 20 to 30-pin LSSOP
- Memory: SRAM Max. 8KB, Program Flash Max. 128KB
- PWM: PWM Output x 16, 3-phase PWM Output Function
- Analog function: 10-bit A/D Converter (ch) x 8
- On-chip Oscillator Freq. (MHz): 64M, 48M, 32M, 24M, 16M, 12M, 8M, 4M, 1M Low-speed Oscillator 15kHz
- Others: PLL, RTC, Power-On Reset, Low Voltage Detection
Comparison
Applications
Design & Development
Software & Tools
Crypto Library
A library for Renesas microcontroller that performs software processing is available.
*The driver for high-speed encryption processing by the hardware accelerator installed in RL78/F2x will be provided after concluding an NDA.
Type | Function | Target Devices | Supported compiler |
---|---|---|---|
SHA hash function library | SHA-256/384/512 Processing of initial value setting and addition of padding data in the library for easy use |
RL78/Fx series | CC-RL, IAR |
RSA library | Maximum key length 3072bits. Signature generation/ verification method RSASSA-PKCS1-V1_5 Modulo exponentiation |
RL78/Fx series | CC-RL, IAR |
Obtaining the product: We will provide the product to customers who will be adopting or plan to adopt a Renesas microcontroller. Please contact your Renesas sales representative or distributor.
Sample Code
Boards & Kits
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.

Support
Support Communities
Partners
SimuQuest
SimuQuest's QuantiPhi enables driver configuration and production code generation, seamlessly integrated with Simulink. QuantiPhi detects and resolves inconsistencies in real-time and automatically optimizes chip settings.
Support Communities
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RL78/F13 Window WDT and IO
hello 1. The MCU automatically resets if you do not feed the dog. Does the Renesas MCU WDT function like this? 2. Whether the MCU WDT is independent. That is, independent of the software code. After the WDT is enabled, only the function of feeding the dog is enabled .There ...
Mar 18, 2025 -
RL78/F13 LIN Transmission not Working
Hi, I am sending data in every 100ms but Data not receiving in PLIN TOOL and i observed that "RLIN0_Transmission_interrupt" not occur,I've attached code for your reference. Note: RX and TX of transreceiver are pullup. SLAVE_LIN.zip
Oct 18, 2024 -
Reset circuit for RL78/F13
I am using R5F10BMG MCU for my project. I want to make an external reset circuit using switch. Can anyone please explain me how to implement it? [locked by: Sai (SWF) at 11:31 (GMT 0) on 5 Jan 2023]
Sep 19, 2022
FAQs
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Feature and performance upgrade from RL78/F13, F14
The maximum CPU clock of RL78/F23 and F24 has been increased to 40MHz for all temperature grades. As a security function, it supports AES-128/192/256 and is functionally equivalent to Evita-light. In terms of functional safety, it is equivalent to ASIL-B. It ...
Jan 31, 2023 -
RL78 F13/14/15 electrical characteristics
Please check the following application: [RL78/F13/F14/F15 Electrical Characteristics Reference Value Quick Viewer | Renesas|https://www.renesas.com/us/en/document/oth/rl78f13f14f15-electrical-characteristics-reference-value-quick-viewer]. This is available on the document section of the ...
Nov 7, 2024 -
RL78 Family: Reset signal generated by the power-on reset circuit (POR)
... system in the reset state using the voltage detector (LVD) or controlling the externally input reset signal. Suitable Products RL78/D1A, RL78/F12, RL78/F13, RL78/F14, RL78/F15, RL78/F23, RL78/F24, RL78/G10, RL78/G11, RL78/G12, RL78 ...
Apr 28, 2025