Overview
Description
The RH850/F1KM-S1 is one group of single-chip microcontrollers in the RH850/F1x series which is designed for automotive electrical body applications. While it achieves low power consumption, the internal flash memory ranges from 512KB to 1MB and the package covers a wide range from 48 to 100 pins. Also, a CAN FD interface has been added and the CPU operating frequency operates up to 120MHz.
Features
- 32-bit single-chip microcontroller with one G3KH CPU core
- High computational processing power
- 120MHz operating frequency
- Internal flash memory from 512KB to 1MB
- Wide variety of internal peripheral functions
- CAN FD interface
- Low power consumption
- Low Power Sampler (LPS) polls signal inputs without CPU core interaction
- DeepSTOP mode disables power to select circuits within the chip
- Package options from 48 to 100 pins
Comparison
Applications
Design & Development
Software & Tools
Software & Tools
Software title
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Software type
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Company
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Renesas MCAL Renesas' MCAL (Microcontroller Abstraction Layer) software drivers can be obtained as a stand-alone software package.
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Software Package | 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]
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Emulator | Renesas |
Automotive BMS Application Model & Software BMS application models and software reduce the effort and time required to develop applications to estimate State Of Charge and State Of Health.
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Software Package | 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
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Self Programming Library (Flash Library) | Renesas |
RH850 Smart Configurator RH850 Smart Configurator is an automatic driver generation tool for internal peripheral I/O modules through GUI settings.
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Solution Toolkit | Renesas |
Model-Based Development Environment for RH850, R-Car Family [Embedded Target for Virtual Platform] Embedded Target for RH850 Virtual Platform is a development environment that generates peripheral code for target devices from Simulink® models and enables cooperative verification as Virtual Hardware In the Loop Simulation (vHILS) in a virtual environment with Simulink.
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Model-Based Development | Renesas |
Data Flash Libraries Libraries for the reprogramming of data flash memory, including EEPROM emulation libraries for the data areas of RL78-family products
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Self Programming Library (Flash Library) | Renesas |
Green Hills Multi Multi development environments allow to quickly develop, debug, test, and optimize embedded and real-time applications. The Green Hills optimizing compilers generate the smallest and fastest code from C, C++, and Ada.
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IDE and Coding Tool | Green Hills Software LLC |
IAR Embedded Workbench for Renesas RH850 IAR Embedded Workbench provides extensive support for RH850 devices. IAR Embedded Workbench is a complete set of development tools with leading optimization technology for creating powerful automotive applications.
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IDE and Coding Tool | IAR Systems |
Green Hills MULTI Device-Support-Packages Green Hills MULTI Device-Support-Packages include all device specific files to be used with the MULTI IDE.
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IDE and Coding Tool | 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]
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Programmer (Unit/SW) | Renesas |
C Compiler Package for RH850 Family [CC-RH] C Compiler Package for RH850 Family [IDE: CS+, e² studio]
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Compiler/Assembler | Renesas |
12 items
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Sample Code
Sample Code
Sample Code | ZIP 8.87 MB | |
Sample Code | ZIP 5.54 MB | |
Sample Code |
ZIP
1.29 MB
Application:
Automotive, Cloud & Enterprise
Function:
Application Example
IDE:
GHS MULTI for RH850
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Sample Code | ZIP 3.74 MB | |
Sample Code |
ZIP
1.49 MB
Application:
Automotive
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Sample Code |
ZIP
1.62 MB
Application:
Consumer Electronics, Industrial
Compiler:
GHS MULTI for V800
Function:
Application Example
IDE:
MULTI
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Sample Code | ZIP 1.55 MB | |
7 items
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Boards & Kits
RH850/F1x, RH850/F1Kx 176-pin Piggyback Board of RH850 Evaluation Platform
The RH850/F1x 176-pin Piggyback Board supports all devices of the RH850/F1L and RH850/F1KM-S1 series in 176-pin package. It can be used standalone or in combination with a mainboard of the RH850 Evaluation Platform. The modular RH850 Evaluation Platform consisting of mainboards and piggyback...
RH850/F1KM-S1 Starter Kit
The RH850/F1KM-S1 Starter Kit serves as a simple and easy to use platform for evaluating the features and performance of Renesas’ 32-bit RH850/F1KM-S1 microcontrollers.
Motor Control Starter Kit Using RH850/F1KM-S1
The Renesas RH850/F1KM-S1 BLDC Starter kit V2 (Y-BLDC-SK-RH850F1KM-S1-V2) enables engineers to easily test and evaluate the performance of RH850/F1KM-S1 in a laboratory environment when driving a 3-phase Permanent Magnet Synchronous Motor (PMSM) using an advanced sensorless field-oriented...
RH850/F1x 100pin Piggyback Board of RH850 Evaluation Platform
The RH850/F1x 100pin Piggyback Board supports all devices of the RH850/F1L, RH850/F1K, RH850/F1KM-S1, RH850/F1KM-S2 and RH850/F1KM-S4 series in 100pin-package. It can be used standalone or in combination with a mainboard of the RH850 Evaluation Platform. The modular RH850 Evaluation Platform...
RH850/F1x 48pin Piggyback Board of RH850 Evaluation Platform
The RH850/F1x 48pin Piggyback Board supports all devices of the RH850/F1L and RH850/F1KM-S1 series in 48pin-package. It can be used standalone or in combination with a mainboard of the RH850 Evaluation Platform. The modular RH850 Evaluation Platform consisting of mainboards and piggyback boards...
RH850/F1x 64pin Piggyback Board of RH850 Evaluation Platform
The RH850/F1x 64pin Piggyback Board supports all devices of the RH850/F1L and RH850/F1KM-S1 series in 64pin-package. It can be used standalone or in combination with a mainboard of the RH850 Evaluation Platform. The modular RH850 Evaluation Platform consisting of mainboards and piggyback boards...
RH850/F1x 80pin Piggyback Board of RH850 Evaluation Platform
The RH850/F1x 80pin Piggyback Board supports all devices of the RH850/F1L and RH850/F1KM-S1 series in 80pin-package. It can be used standalone or in combination with a mainboard of the RH850 Evaluation Platform. The modular RH850 Evaluation Platform consisting of mainboards and piggyback boards...
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.

Models
Model - IBIS | ZIP 2.04 MB | |
Model - BSDL | ZIP 11 KB | |
2 items
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Product Options
Applied Filters:
Support
Support Communities
Resources
Partners
Vector Informatik GmbH
The MICROSAR evaluation package includes the Vector basic software according to AUTOSAR Classic as well as all necessary software tools.
Elektrobit Automotive GmbH
The EB tresos solution for RH850/F1Kx includes EB's basic software for Classic AUTOSAR ECUs, an integrated OS and MCAL as well as an easy-to-use tool set to configure and generate the software components.
Tata Elxsi Ltd.
Tata Elxsi supports Renesas customers during their development by providing MCAL service and support, including:
- Frozen Branch Service
- AUTOSAR Validation Service
- Compiler Re-validation Service
Embien Technologies India Pvt.Ltd
Embien, together with Renesas, designed and developed the Secure Bootloader stack for Renesas RH850 devices that allows secure FOTA update and firmware validation.
Support Communities
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Request for RIIC Sample Code for RH850/F1KM-S1
Dear Renesas Support Team, I hope this message finds you well. Could you kindly provide the RIIC (I²C) sample code for the RH850/F1KM-S1 microcontroller? It would greatly help in accelerating our development process. Thank you very much in advance for your support and assistance.
May 7, 2025 -
RH850/F1KM-S1_R7F7016894AFP / CLMA3 / how to test clock monitor
Hi, i would like to make initial code about CLMA3's clock monitor in RH850/F1KM-S1_R7F7016894AFP. Plz let me know the code as below. How to enable/disable the CLMA3 . Using dr7f7016894.dvf.h (GHS Header definition file) like this. (E.g. Clock. / Write Protected ...
Jun 13, 2025 -
RH850/F1KM-S1 target boards schematic and user guide
I have RH850/F1KM-S1 target boards which i have to use in my one the project.so please share me schematic and necessary document so that i can start development.Thanks,Nitin Kanani
May 19, 2025
FAQs
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Maximum current output to drive a motor using 'RH850/F1KM-S1 Starter Kit’
The maximum current when using power supply via power jack is 0.5 A. if the power jack is used to power the motor control part of the board, an e-fuse will limit the current to ~ 400mA. There are possibilities to use other power supply for motor (VBAT) in ...
Nov 10, 2023 -
BSDL and IBIS files for RH850 devices
The BSDL and IBIS files for RH850 devices are now available on the website. Step 1: Go to the product landing page of the device family. Figure 1: Product Landing page RH850/F1KM-S1 Step 2: One the page click on the Design& Development section Figure 2: Design ...
Nov 6, 2023
Videos & Training
Take a glimpse of the Automotive Tech Days 2019. A great chance for customers to interact with Renesas product experts and discover available Digital and Analog solutions.
Transcript
Elmar Winter: We have done 14 TechDays for automotive customers. Eleven at our customer premises and three at our offices in Europe.
Carsten Jauch: Today, our teams have prepared lot of live demos, so I would really ask you to go in the deep, technical discussions with our experts to drive your innovation.
Elmar Winter: Renesas is in a transition from a pure semiconductor supplier to a more and more system solution provider. Today we are able to provide wide digital and analog solutions for all our customers.
For brushless DC motors, we control and drive with our MCU solutions the electronic commutation of BLDC motors.
With our inductive sensing solutions, we are able at the same time to sense precisely the position of the rotor and replace resolver solutions.
With our R-Car SoC solutions, our customers serve more and more solutions in the field of infotainment and ADAS.
In parallel, they use timing and PMIC solutions from Renesas and save development time.
A TechDay is a very efficient way to bring the right experts together. It's like a small congress at your location. If you are interested in such a TechDay in your premises, please get in touch with our sales team.