Overview
Description
RL78/F15 automotive microcontrollers employ the RL78 core, which realizes high processing performance while delivering the lowest power consumption in its class. A high-speed on-chip oscillator provides 32MHz CPU operation. An enhanced motor control functionality is offered by the motor control timer (Timer RD). For easy migration, RL78/F15 is pin and software upwards compatible with RL78/F14. The RL78/F15 Group even supports 125 ℃ (target) operation, whereby a CPU clock of 24 MHz can be reached. In addition, an abundance of functions to support functional safety, like ECC on RAM and a stack pointer monitor as well as an A/D converter testing function are available. With packages from 48 to 144-pin, a memory range from 128KB to 512KB flash, and advanced IPs for LIN and 2 channels of CAN communication and IEBus, these products are very well suited for a broad range of cost-sensitive automotive applications like DC and BLDC motor control, HVAC, lighting and many kinds of body applications.
Features
- CPU: RL78 core, Max. 32MHz
- Voltage: 2.7V to 5.5V
- Package: 48-pin HVQFN, 48 to 144-pin LFQFP
- Memory: SRAM Max. 32KB, Program Flash Max. 512KB
- PWM: PWM Output x 24, 3-phase PWM Output Function
- Analog function: 10-bit A/D Converter (ch) x 31, 8-bit D/A Converter (ch) x 1
- 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
Support Communities
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EEPROM SAMPLE CODE FOR RL78/F15
HI, I am using RL78/F15 (R5F113GLCLFB) microcontroller for my application, if it is possible to share the example code for EEPROM (read & write). kindly share the EEPROM example code as soon as possible.
May 31, 2024 -
RL78/F15 next generation
Are RL78 / F24 and RL78 / F25 controllers expected to appear as the next generations for RL78 / F14 and RL78 / F15 in the near future?
Mar 3, 2020 -
RL78/F15 flasing error through emulator e2 lite
hi sir, we are facing a issues that Renesas emulator e2 lite doesn't flashing the code to RL78 microcontroller but its works on cs+ debugging. kindly support us as soon as possible. here i attach the image file. kindly refer the image file and give your suggestion and solutions.
May 15, 2024
FAQs
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RL78 Family: Reset signal generated by the power-on reset circuit (POR)
... 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/G13, RL78/G13A, RL78 ...
Apr 28, 2025 -
RL78/F1x compatibility to ISO26262
... decide if this procedure is sufficient to reach the requested ASIL level. The description and handling of the safety features is described in chapter 27 "Safety Functions" of the RL78/F13, F14 User’s Manual, or in chapter 28 "Safety Functions" of the RL78/F15 User’s Manual.
Jun 23, 2021 -
RL78 Family: Relationship between A/D Conversion Resolution and A/D Conversion Time
... /L1CGroup D: RL78/F23, RL78/F24, RL78/L1AGroup E: RL78/D1A, RL78/F12, RL78/F13, RL78/F14, RL78/F15, RL78/G10, RL78/G11, RL78/G12, RL78/G13, RL78/G13A, RL78/G14, RL78/G15, RL78 ...
Nov 12, 2024