Renesas R7F7017143ABG-C#BC1

Overview

R7F7017143ABG-C#BC1 from Renesas Electronics is a 32-bit RH850/F1KM-S4 automotive microcontroller featuring dual-core lockstep CPU, 4MB flash memory, 512KB SRAM, and integrated ASIL-D safety mechanisms including ECC, BIST, and error-correcting memory controllers. It supports CAN FD (up to 5 channels), Ethernet AVB, and hardware cryptographic acceleration for secure boot and OTA updates - deployed in vehicle domain controllers and ADAS sensor fusion units.

For engineers reviewing the R7F7017143ABG-C#BC1 datasheet, R7F7017143ABG-C#BC1 pinout, R7F7017143ABG-C#BC1 application, or R7F7017143ABG-C#BC1 equivalent, key selection criteria include ASIL-D compliance evidence, dual-core lockstep timing behavior, flash ECC coverage scope, CAN FD data-rate support (up to 5 Mbps), and hardware crypto engine throughput for AES-128-GCM.

Technical Context

The R7F7017143ABG-C#BC1 implements two synchronized RH850 G3K-H cores operating in lockstep mode with cycle-by-cycle comparison and fault detection logic. Its memory subsystem includes 4MB on-chip flash with full ECC protection, 512KB SRAM with SEC-DED ECC, and 128KB TCM with parity checking.

Peripheral integration includes five CAN FD controllers (ISO 11898-1:2015 compliant), one 100BASE-T1 Ethernet MAC with AVB support, 24-channel DMA, and an Intelligent Cryptographic Unit Master Device (ICUMD) supporting AES-128/256, SHA-256, RSA-2048, and TRNG - all certified per ISO 26262 ASIL-D at the MCU level.

Key Specifications

Pinout & Package

Package: 256-pin LQFP (24mm × 24mm, 0.5mm 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 R7F7017143ABG-C#BC1, the R7F7017153ABG-C#BC1 offers higher on-chip memory headroom for complex middleware stacks, while the TC397XP requires external Ethernet PHY and lacks native AVB support - making R7F7017143ABG-C#BC1 optimal for time-sensitive, Ethernet-dependent ASIL-D domain controllers.

Availability

R7F7017143ABG-C#BC1 is available at Aetrix Electronics and suitable for automotive domain controllers, ADAS sensor fusion units, and secure vehicle gateways requiring stable component supply, long-term lifecycle commitment, and ASIL-D-certified silicon.

Supply support for R7F7017143ABG-C#BC1 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 solutions for automotive, industrial, and IoT markets.

The RH850/F1KM product line delivers ASIL-D-certified 32-bit MCUs for safety-critical automotive applications including domain control, ADAS, and electric powertrain systems - designed to meet ISO 26262 requirements without external safety monitors.

FAQ

What safety certifications apply to the R7F7017143ABG-C#BC1?

The R7F7017143ABG-C#BC1 is certified to ISO 26262 ASIL-D at the MCU level, with FMEDA documentation, safety manual, and diagnostic coverage reports provided by Renesas. It includes hardware safety mechanisms such as dual-core lockstep, ECC on all memory arrays, BIST for CPU and bus, and configurable error injection for validation - all verified per ISO 26262 Part 5 requirements. The R7F7017143ABG-C#BC1 does not require external safety monitors to achieve ASIL-D compliance in supported configurations.

Does the R7F7017143ABG-C#BC1 support CAN FD with data rates above 2 Mbps?

Yes, the R7F7017143ABG-C#BC1 supports CAN FD up to 5 Mbps in the data phase per ISO 11898-1:2015, with five independent CAN FD controllers. Each controller supports programmable bit timing, automatic retransmission, and flexible data-length configuration (up to 64 bytes). The R7F7017143ABG-C#BC1's CAN FD IP includes built-in CRC calculation and error confinement logic to maintain protocol integrity at high speeds.

What is the role of the ICUMD in the R7F7017143ABG-C#BC1?

The Intelligent Cryptographic Unit Master Device (ICUMD) in the R7F7017143ABG-C#BC1 is a dedicated hardware accelerator supporting AES-128/256-GCM, SHA-256, RSA-2048, and true random number generation. It operates independently of the CPU cores, enabling secure boot, encrypted OTA updates, and TLS offload without impacting real-time performance. The R7F7017143ABG-C#BC1 uses ICUMD to achieve FIPS 140-2 Level 2 equivalent security while maintaining ASIL-D timing guarantees.

How does the R7F7017143ABG-C#BC1 handle memory errors in flash and SRAM?

The R7F7017143ABG-C#BC1 implements full SEC-DED (single-error correction, double-error detection) ECC on its 4MB flash and 512KB SRAM. Correctable errors trigger interrupt flags and are logged in dedicated status registers; uncorrectable errors force a safe state transition via the error management unit. The R7F7017143ABG-C#BC1 provides dedicated registers for error injection testing and ECC scrubbing control - essential for ISO 26262 diagnostic coverage validation.

Is the R7F7017143ABG-C#BC1 pin-compatible with other RH850/F1KM variants?

The R7F7017143ABG-C#BC1 uses a 256-pin LQFP package shared with several RH850/F1KM-S4 devices, including R7F7017153ABG-C#BC1. Pin functions are identical across these variants for power, reset, clock, JTAG, and major peripheral signals (CAN FD, Ethernet, ADC). However, some secondary function pins differ in alternate mode mapping - full pin compatibility requires verification against the specific variant's pin assignment table in the RH850/F1KM Hardware User's Manual Rev.1.30.