The high-end microcomputer for chassis which carries a variegated safety feature and offers further relief and safety


The RH850/P1M microcontroller is low power consumption and it has up to 2 MB flash and up to 128 KB RAM lineup and enhanced motor control timer, CAN interface, digital interface for sensor such as SENT and PSI5 and safety functions such as lockstep CPU, ECC, BIST (Built-in Self Test) and ECM (Error Control Module) and suitable for chassis systems. Furthermore Only 2 MB flash product is built-in ICU-S (Hardware Security Module) as optional.


Main Solutions

Key Features:

Pin Count 100-pin 144-pin
CPU CPU System RH850G3M (With Lockstep)
CPU Frequency 160 MHz (Main oscillator 16 MHz)
Memory Protection Unit (MPU) Supported
Floating Point Unit (FPU) Single precision and double precision
Timing Protection Timer (TPT) Supported
Memory Program Flash 512 KB to 2 MB 1 MB to 2 MB
Data Flash 32 KB (Flash 512 KB, 1 MB products) / 64 KB (Flash 2 MB products)
Local RAM 64 KB (Flash 512 KB products) / 128 KB (Flash 1 to 2 MB products)
Trace RAM 32 KB
Emulation RAM (ERAM) 8 KB (Flash 512 KB, 1 MB products) / 32 KB (Flash 2 MB products)
Instruction Cache 8 KB 4Way
INTC INTC1 (CPU core) 32 channels (Redundant)
INTC2 352 channels
DMA DMAC 16 channels (Redundant)
DTS 128 channels (Redundant)
Safety Error Control Module (ECM) Supported
Core Voltage Monitor (CVM) Supported
Built-in Self Test(BIST) with status flag Supported
ERROROUT Supported
Clock Monitor Supported
A/D Converter 12-bit Resolution 2 units (19 channels) 2 units (24 channels)
Temperature sensor Supported
Analog Input ADCD0 9 channels 12 channels
ADCD1 10 channels 12 channels
Track and Hold ADCD0 6
Timer 16-bit Timer Array Unit D (TAUD) 3 units
32-bit Timer Array Unit J (TAUJ) 3 units
Motor Control Timer (TSG3) 2 units
Timer Option (TAPA) 4 units
Encoder Timer (ENCA) 2 units
Timer for Operating System (OSTM) 7 units (Including 2 units for output)
Watchdog Timer (WDTA) 1 unit
Timer Pattern Buffer (TPBA) 2 units
Peripheral Interconnect (PIC) Supported
Clock out Supported
Serial Interface CAN (RS-CAN) 2 channels (Flash 512 KB, 1 MB products)
3 channels (Flash 2 MB products)
FlexRay 2 channels
Peripheral Sensor Interface 5 (PSI5) 2 channels
Single Edge Nibble Transmission (RSENT) 5 channels 6 channels
Sync/Async USART (SCI3) 3 channels
LIN master (RLIN3) 2 channels
Clocked Serial Interface (CSIG) 1 channel
Queued Clocked Serial Interface (CSIH) 4 channels
Data CRC 4 channels
Debug NEXUS-JTAG Supported
LDU Supported
AUD-RAM Monitor - Supported
Trace RAM Supported
Operating Temperature (Junction) Tj = -40 to 150 ℃
Operating Voltage 3.0V to 5.5V (Built in voltage regulator for core)
3.0 to 5.5 V (For I/O) / 1.25 V (For core)

Pin Count / Memory Size Lineup:

Program Flash

(14×14 mm)
(16×16 mm)
(20×20 mm)


Block Diagram:

RH850/P1M Block Diagram

Recommended peripheral devices

Analog/Power Device
Recommended Product
Features Featured Document Ordering
Power Management IC RAA270005KFP Ideal power solution for RH850/P1x(with Built in voltage regulator for MCU’s core). Integrated fault diagnosis and monitor functions. Support cranking operation. Datasheet Contact Sales

You can find an explanation of orderable part numbers here.


Resources for Software and Hardware

Title Description
My Renesas Create a My Renesas account to use our tool download services, receive e-newsletter/update notifications, and take advantage of our other services.
e-learning Information for studying and learning about microcontrollers and microprocessors.
FAQ Frequently asked questions and useful hints for development.
Forum A forum and community site to share technical information, questions and opinions with others who use Renesas products.


Software Design Support

Title Description
CS+ This integrated development environment (IDE) can be used for coding, assembly, compiling, and simulation.
e² studio This integrated development environment (IDE) is based on the popular combination of the open-source Eclipse IDE and its CDT plug-in that enables C/C++ language development.
E2 emulator This on-chip debugging emulator has advanced features that improve the efficiency of development. In addition to the basic functions from debugging to flash programming, this emulator supports hot plug-in and external triggers as standard items. This emulator also helps to reduce development time by downloading at high speeds (compared to the E1 emulator) and the ability to work in combination with various solutions such as the CAN communication time measurement solution by systems under development.
E1 emulator This on-chip debugging emulator is a standard model which provides basic debugging functions (production is to be discontinued at the end of December 2019).


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