Overview
Description
The RH850/P1M-C Series is the mid-end version of the RH850/P1x Series of 32-bit automotive microcontrollers (MCUs) This series combines functional safety technology, security technology, and vehicle control network technology on a single chip, which are the keys to realizing safe vehicle control. It features 32-bit RH850G3M lockstep dual core CPUs, security technology, Code Flash, Data Flash, RAM modules, DMA controllers, many communication interfaces that are used in automotive applications, A/D converters, timer units, etc. It is oriented to the automotive applications which comply with the ISO 26262 functional safety standard.
Features
- CPU: G3M core, Max. 240MHz
- Voltage: 3V to 3.6V
- Package: 292-pin FBGA, 144-pin LQFP
- Memory: SRAM Max. 448KB, Program Flash Max. 2MB
- Timer: 16-bit Timer (ch) x 28, Watchdog Timer (ch) x 1, STM, GTM(ARU, CMU, TBU, ICM, CMP, MON, DTMx2unit, MCS)
- PWM: PWM Output x 12, 3-phase PWM Output Function
- Analog function: 12-bit A/D Converter (ch) x 24
- On-chip Oscillator Freq. (MHz): 16MHz
- Others: PLL, Power-On Reset
Comparison
Applications
Design & Development
Software & Tools
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
Resources
Support Communities
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RH850/P1M-C: Does the EI level interrupt status flag need to be cleared by software?
Hi Renesas: I would like to know if the EI level interrupt flag needs to be cleared by software? If necessary, which register should be operated on? I didn't find the relevant information in the reference manual. Thanks
Sep 11, 2023 -
RH850/P1M-C: What safety mechanisms have been implemented by MCAL?
Hi , I would like to know which safety mechanisms in safety applicatio note have been implemented in MCAL and what other users need to implement? I have implemented some of them such as ECM,CLMA , but I just realized that they already exist in MCAL Thank you in advance
Oct 13, 2023 -
RH850/P1M-C: Unable to enter interrupt service function
Hi experts: When I use the ECM module to generate a maskable interrupt, RFn bit in EIC0 register set, but did not enter the interrupt service function. Interrurp is enabled and do I need to do anything else? Thanks
Jun 7, 2023
FAQs
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Software protection of flash memory on some RH850 devices
Last updated: 10/7/2025 Question: Is there any software protection of flash memory on RH850 devices ? Answer: The following RH850 devices have a software protection mechanism of flash memory: RH850/P1L-C RH850/P1M-E RH850/P1M-C RH850/C1M-A RH850/ ...
Jan 1, 1970