Renesas R7F7015973AFP-C#KA3

Overview

R7F7015973AFP-C#KA3 from Renesas Electronics is a 32-bit RH850/F1K automotive microcontroller with 4 MB flash memory, 512 KB RAM, and dual-lockstep CPU core for ASIL-D functional safety compliance. It integrates CAN FD (up to 5 channels), LIN, FlexRay, Ethernet AVB, and hardware security module (HSM) for secure boot and cryptographic acceleration. Used in vehicle domain controllers requiring real-time deterministic execution and ISO 26262-compliant safety mechanisms.

For engineers reviewing the R7F7015973AFP-C#KA3 datasheet, R7F7015973AFP-C#KA3 pinout, R7F7015973AFP-C#KA3 application, or R7F7015973AFP-C#KA3 equivalent, key selection criteria include ASIL-D certification status, dual-core lockstep configuration, on-chip HSM support, CAN FD channel count, and 176-pin LQFP package compatibility with automotive ECU thermal and vibration requirements.

Technical Context

The R7F7015973AFP-C#KA3 implements a dual-core RH850 G3KH CPU executing in lockstep mode with hardware-based comparison and error detection logic. It supports ISO 26262 ASIL-D via integrated safety monitor, ECC-protected SRAM/flash, and redundant clock domains.

Its peripheral set includes five CAN FD controllers with time-triggered communication support, one 100BASE-T1 Ethernet AVB interface with hardware timestamping, and a dedicated HSM supporting AES-128/256, SHA-256, RSA-2048, and ECDSA. Memory protection units enforce strict code/data isolation across safety partitions.

Key Specifications

Pinout & Package

Package: 176-pin LQFP (24 mm × 24 mm, 0.5 mm pitch), moisture sensitivity level MSL3, RoHS-compliant, qualified per AEC-Q100 Grade 1 (−40°C to +125°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F7015973AFP-C#KA3, the R7F7015893AFP-C#KA3 offers identical safety architecture and pin compatibility at lower memory capacity, while the TC397XP requires full toolchain migration and lacks native Ethernet AVB-making R7F7015973AFP-C#KA3 optimal for new ASIL-D domain controller designs needing integrated AVB and HSM.

Availability

R7F7015973AFP-C#KA3 is available at Aetrix Electronics and suitable for automotive ECU development, ASIL-D safety-critical domain controllers, and secure gateway modules requiring stable component supply across long production lifecycles.

Supply support for R7F7015973AFP-C#KA3 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 devices for automotive, industrial, and IoT markets.

The RH850/F1K product line delivers high-performance, ASIL-D-certified MCUs for automotive domain controllers, with emphasis on functional safety, secure communication, and real-time determinism in electric and autonomous vehicles.

FAQ

What safety certifications does the R7F7015973AFP-C#KA3 hold?

The R7F7015973AFP-C#KA3 is certified to ISO 26262 ASIL-D at the device level, supported by Renesas' certified safety manual (Rev.1.00), FMEDA report, and diagnostic software library. It includes hardware lockstep CPU comparison, ECC-protected memories, and redundant clock domains-all validated for automotive safety-critical applications. The R7F7015973AFP-C#KA3 meets AEC-Q100 Grade 1 reliability requirements and includes built-in self-test (BIST) for memory and logic.

Does the R7F7015973AFP-C#KA3 support Ethernet AVB with hardware timestamping?

Yes, the R7F7015973AFP-C#KA3 integrates a 100BASE-T1 Ethernet AVB interface compliant with IEEE 802.1AS, featuring hardware timestamping with sub-microsecond resolution on both transmit and receive paths. This enables precise synchronization of audio/video streams in infotainment systems and time-sensitive networking in zonal architectures. The R7F7015973AFP-C#KA3 provides dedicated DMA channels and interrupt routing for low-latency AVB frame handling without CPU overhead.

How many CAN FD channels does the R7F7015973AFP-C#KA3 include?

The R7F7015973AFP-C#KA3 integrates five independent CAN FD controllers, each supporting data rates up to 5 Mbps and protocol features including flexible data-length coding and CRC enhancement. All five channels support time-triggered communication (TTCAN) mode for deterministic scheduling in synchronized ECU networks. The R7F7015973AFP-C#KA3 allocates dedicated message RAM and filtering logic per channel to avoid arbitration bottlenecks in high-bandwidth automotive networks.

What cryptographic functions are accelerated by the HSM in the R7F7015973AFP-C#KA3?

The R7F7015973AFP-C#KA3's Hardware Security Module (HSM) accelerates AES-128/256 encryption/decryption, SHA-256 hashing, RSA-2048 signing/verification, and ECDSA-256 operations. It supports secure boot authentication, encrypted firmware update, and TLS offload for cellular/Wi-Fi gateways. The R7F7015973AFP-C#KA3 isolates HSM keys in tamper-resistant memory and enforces access control via dedicated privilege levels-ensuring cryptographic integrity even under physical attack.

Is the R7F7015973AFP-C#KA3 pin-compatible with other RH850/F1K variants?

The R7F7015973AFP-C#KA3 uses a 176-pin LQFP package with defined pin mapping per Renesas' RH850/F1K hardware manual. It shares identical pinout with R7F7015893AFP-C#KA3 and R7F7015983AFP-C#KA3, enabling PCB reuse across memory-variant SKUs. However, pin compatibility does not extend to non-F1K RH850 families (e.g., F1L or F1M), nor to earlier RH850 generations. The R7F7015973AFP-C#KA3 requires matching power sequencing and thermal design per its specific voltage and current profile.