Renesas R7F7016503ABG-C#HC1

Overview

R7F7016503ABG-C#HC1 from Renesas Electronics is a 32-bit RH850/F1K automotive microcontroller with 2 MB flash memory, 256 KB RAM, and dual-lockstep CPU core for ASIL-D functional safety compliance. It integrates CAN FD (2 channels), LIN (3 channels), Ethernet AVB, and hardware security module (HSM) for secure boot and cryptographic acceleration. Used in automotive ADAS domain controllers requiring real-time deterministic execution and ISO 26262 certification.

For engineers reviewing the R7F7016503ABG-C#HC1 datasheet, R7F7016503ABG-C#HC1 pinout, R7F7016503ABG-C#HC1 application, or R7F7016503ABG-C#HC1 equivalent, key selection criteria include ASIL-D support via lockstep core, integrated HSM for TLS/ECDSA, CAN FD bandwidth up to 5 Mbps, and 160 MHz core clock with 2.4 DMIPS/MHz performance.

Technical Context

The R7F7016503ABG-C#HC1 implements a dual-core lockstep architecture where two identical CPU cores execute identical instructions in parallel with cycle-by-cycle comparison to detect transient faults. It includes a dedicated Safety Management Unit (SMU) that monitors CPU, memory, and peripheral integrity and triggers safe state transitions on error detection.

Peripherals are partitioned into safety-critical and non-safety domains: CAN FD controllers support automatic error containment and message filtering with hardware timestamping; the HSM provides AES-128/256, SHA-256, RSA-2048, and ECC P-256 acceleration with tamper-resistant key storage; and the 12-bit ADC features self-test and diagnostic coverage per ISO 26262 ASIL-B decomposition.

Key Specifications

Pinout & Package

Package: 176-pin LQFP (24 mm × 24 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TC397XP-160F300N and S32K344W0VUCT, the R7F7016503ABG-C#HC1 offers native Ethernet AVB with time synchronization and tighter integration of HSM with flash encryption - making it optimal for secure, time-deterministic ADAS gateways where protocol offload and secure boot latency are critical.

Availability

R7F7016503ABG-C#HC1 is available at Aetrix Electronics and suitable for automotive ADAS domain controllers, electric power steering systems, brake-by-wire modules, and vehicle communication gateways requiring stable component supply and long-term lifecycle support.

Supply support for R7F7016503ABG-C#HC1 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 is designed specifically for ASIL-D automotive safety applications, integrating lockstep CPUs, hardware safety monitors, and certified functional safety libraries to accelerate ISO 26262-compliant system development.

FAQ

What is the maximum operating frequency of the R7F7016503ABG-C#HC1 CPU core?

The R7F7016503ABG-C#HC1 features a dual-lockstep RH850/F1K CPU core operating at a maximum frequency of 160 MHz. This clock speed delivers 2.4 DMIPS/MHz performance while maintaining strict timing predictability required for ASIL-D safety mechanisms. The core uses a 5-stage pipeline with branch prediction and supports both little-endian and big-endian modes. All timing parameters-including interrupt latency and instruction execution cycles-are guaranteed across the full -40°C to +125°C temperature range.

Does the R7F7016503ABG-C#HC1 support CAN FD with ISO 11898-1:2015 compliance?

Yes, the R7F7016503ABG-C#HC1 integrates two fully compliant CAN FD controllers meeting ISO 11898-1:2015. Each channel supports bit rates up to 5 Mbps in the data phase, programmable bit timing, automatic retransmission, and hardware timestamping with 1 ns resolution. The CAN FD modules include dedicated message RAM with configurable TX/RX buffers, error counters, and loopback self-test mode-enabling AUTOSAR-compliant driver stacks and functional safety diagnostics per ISO 26262 Part 5 Annex D.

How does the Hardware Security Module (HSM) in the R7F7016503ABG-C#HC1 protect firmware updates?

The HSM in the R7F7016503ABG-C#HC1 protects firmware updates by performing cryptographic verification of signed OTA images using ECDSA P-256 signatures before flash programming. Keys are stored in tamper-resistant memory inaccessible to the main CPU, and all decryption and hash operations occur inside the HSM boundary. The R7F7016503ABG-C#HC1 enforces secure boot by validating the root certificate chain prior to executing any user code, ensuring only authenticated firmware runs-even after power cycles or reset events.

What safety certifications apply to the R7F7016503ABG-C#HC1 for automotive use?

The R7F7016503ABG-C#HC1 is AEC-Q100 Grade 1 qualified (-40°C to +125°C) and supports ISO 26262 ASIL-D compliance at the system level when used with Renesas' certified safety manual and FMEDA report. Its dual-lockstep CPU, Safety Management Unit (SMU), memory ECC/parity, and peripheral self-tests collectively achieve >99% single-point fault coverage and <10 ppm latent fault rate. The R7F7016503ABG-C#HC1 also includes hardware-assisted diagnostic libraries certified by TÜV SÜD for ASIL-D development workflows.

Can the R7F7016503ABG-C#HC1 operate without an external crystal oscillator?

No, the R7F7016503ABG-C#HC1 requires an external 8–20 MHz crystal connected to the CLKIN/CLKOUT pins to generate its main system clock via the on-chip PLL. While it includes an internal RC oscillator for initial boot and fail-safe operation, this oscillator has ±2% accuracy and cannot meet the timing precision required for CAN FD bit timing, Ethernet AVB synchronization, or ASIL-D clock monitoring. The R7F7016503ABG-C#HC1's clock failure detection circuitry automatically triggers a safe state if the external crystal stops oscillating or exceeds frequency tolerance.