Renesas R7F7015834AFP-C#BA3

Overview

R7F7015834AFP-C#BA3 from Renesas Electronics is a 32-bit RH850/F1K automotive-grade microcontroller featuring a dual-core lockstep CPU, 3MB on-chip flash memory, 384KB RAM, and integrated ASIL-B compliant safety mechanisms including ECC for memory, BIST, and windowed watchdog timers. It supports CAN FD (up to 5 channels), LIN, FlexRay, and Ethernet AVB interfaces, and is qualified for powertrain and chassis control applications requiring ISO 26262 ASIL-D functional safety compliance.

For engineers reviewing the R7F7015834AFP-C#BA3 datasheet, R7F7015834AFP-C#BA3 pinout, R7F7015834AFP-C#BA3 application, or R7F7015834AFP-C#BA3 equivalent, key selection criteria include dual-core lockstep execution integrity, ASIL-D hardware safety features, CAN FD bandwidth support, flash read-while-write capability, and QFP-176 package thermal performance in under-hood environments.

Technical Context

The R7F7015834AFP-C#BA3 implements a dual-core RH850 G3KH CPU with lockstep comparison logic and error detection circuitry, enabling real-time fault detection without software overhead. Its memory subsystem includes 3MB of embedded flash with 128-bit wide access, 384KB SRAM with ECC, and 64KB data flash with wear leveling support.

Peripheral integration includes five CAN FD controllers (ISO 11898-1:2015 compliant), one FlexRay v2.1A controller with dual-channel support, four LIN controllers, and an Ethernet AVB MAC supporting IEEE 802.1AS time synchronization. Safety features are implemented at silicon level per ISO 26262 Part 5 requirements.

Key Specifications

Pinout & Package

Package: 176-pin LQFP (24mm × 24mm, 0.4mm pitch) with exposed thermal pad (EPAD) for enhanced thermal dissipation in high-power automotive applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive safety microcontroller applications.

Compared with R7F7015834AFP-C#BA3, the R7F7015833AFP-C#BA3 offers identical safety architecture and pin compatibility at lower memory capacity, while the TC397XP provides greater multi-core scalability but demands full safety requalification and layout redesign.

Availability

R7F7015834AFP-C#BA3 is available at Aetrix Electronics and suitable for engine control units, electric power steering systems, brake-by-wire modules, and ADAS domain controllers requiring stable component supply across extended automotive production lifecycles.

Supply support for R7F7015834AFP-C#BA3 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics Corporation is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power management ICs for automotive, industrial, and IoT markets.

The RH850/F1K product line delivers high-reliability, ASIL-D ready MCUs for powertrain, chassis, and safety-critical automotive systems, with emphasis on hardware-based functional safety and real-time determinism.

FAQ

What is the maximum operating temperature specification for the R7F7015834AFP-C#BA3?

The R7F7015834AFP-C#BA3 is rated for operation from −40°C to +125°C ambient temperature and is qualified per AEC-Q100 Grade 1 standards. This rating applies to the full device functionality including CPU, flash, RAM, and all integrated peripherals such as CAN FD and FlexRay controllers. Thermal derating is not required within this range when the EPAD is properly soldered to a thermally adequate PCB ground plane.

Does the R7F7015834AFP-C#BA3 support flash read-while-write (RWW) functionality?

Yes, the R7F7015834AFP-C#BA3 supports true read-while-write operation on its 3MB embedded flash memory. This allows background firmware updates or calibration data writes to occur concurrently with real-time application code execution without interrupting critical control loops. The feature is enabled via dedicated flash control registers and requires no external memory expansion.

How many CAN FD interfaces does the R7F7015834AFP-C#BA3 integrate, and what data rates are supported?

The R7F7015834AFP-C#BA3 integrates five independent CAN FD controllers compliant with ISO 11898-1:2015. Each controller supports arbitration bit rates up to 1 Mbps and data phase bit rates up to 5 Mbps. All five channels operate simultaneously with dedicated message RAM and hardware filtering, enabling high-bandwidth communication across multiple vehicle domains.

Is the R7F7015834AFP-C#BA3 certified to ISO 26262 ASIL-D, and what hardware safety features does it include?

The R7F7015834AFP-C#BA3 is designed to meet ISO 26262 ASIL-D requirements with hardware safety features including dual-core lockstep CPU comparison, ECC on all SRAM and flash, built-in self-test (BIST) for memory and logic, windowed watchdog timers, clock frequency monitors, and a dedicated safety monitor unit (SMU). Renesas provides a complete safety manual and FMEDA report to support customer certification efforts.

What package type and pin count does the R7F7015834AFP-C#BA3 use, and is thermal pad soldering required?

The R7F7015834AFP-C#BA3 uses a 176-pin LQFP package measuring 24mm × 24mm with 0.4mm pitch and an exposed thermal pad (EPAD) on the underside. Soldering the EPAD to a thermally robust PCB ground plane is mandatory for thermal management-failure to do so risks exceeding junction temperature limits under sustained 300MHz CPU operation and peripheral activity.