Renesas R7F7016874AFP-C#AA1

Overview

R7F7016874AFP-C#AA1 from Renesas Electronics is a 32-bit RH850/F1KH-D8 automotive microcontroller featuring dual-core lockstep CPU architecture, 4 MB on-chip flash memory, and ASIL-D functional safety compliance per ISO 26262. It integrates CAN FD (up to 5 channels), Ethernet AVB, and hardware security module (ICUMD) for secure boot and cryptographic acceleration. Used in automotive ADAS domain controllers requiring high-integrity real-time processing.

For engineers reviewing the R7F7016874AFP-C#AA1 datasheet, R7F7016874AFP-C#AA1 pinout, R7F7016874AFP-C#AA1 application, or R7F7016874AFP-C#AA1 equivalent, key selection criteria include ASIL-D certification status, dual-core lockstep fault detection latency, flash ECC coverage, CAN FD data-rate support (up to 5 Mbps), and ICUMD-supported cipher suites (AES-128/256, SHA-256, RSA-2048).

Technical Context

The R7F7016874AFP-C#AA1 implements two tightly coupled RH850G3KH cores operating in lockstep mode with cycle-accurate comparison and automatic fail-safe response. It includes integrated memory protection units (MPUs), error-correcting code (ECC) for both flash and SRAM, and dedicated safety management unit (SMU) supporting BIST, watchdog timers, and voltage/temperature monitoring.

Peripheral integration includes five CAN FD controllers with time-triggered communication support, one IEEE 802.3av-compliant Ethernet AVB MAC with DMA, and an intelligent cryptographic unit (ICUMD) that offloads symmetric/asymmetric encryption without CPU intervention. All safety-critical peripherals are validated under ISO 26262 ASIL-D flow.

Key Specifications

Pinout & Package

Package: 176-pin LQFP (24 mm × 24 mm, 0.5 mm pitch), moisture sensitivity level (MSL) 3, RoHS-compliant, automotive-grade (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 R7F7016874AFP-C#AA1, the R7F7016884AFP-C#AA1 offers scalable memory without layout change, while the TC397XP-160F300SRL requires PCB redesign and toolchain migration - making R7F7016874AFP-C#AA1 optimal for new ASIL-D designs needing integrated Ethernet AVB and deterministic CAN FD timing.

Availability

R7F7016874AFP-C#AA1 is available at Aetrix Electronics and suitable for automotive ADAS domain controllers, electric powertrain control units, and zonal ECUs requiring stable component supply, long lifecycle support, and ASIL-D-certified silicon.

Supply support for R7F7016874AFP-C#AA1 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 infrastructure markets.

The RH850/F1KH product line delivers ASIL-D-certified 32-bit MCUs for safety-critical automotive applications, emphasizing lockstep CPU integrity, hardware security acceleration, and multi-protocol connectivity for next-generation E/E architectures.

FAQ

What is the maximum operating temperature range certified for R7F7016874AFP-C#AA1?

R7F7016874AFP-C#AA1 is qualified per AEC-Q100 Grade 1, with guaranteed operation from –40°C to +125°C ambient temperature. This rating applies to the full device - including CPU, flash, SRAM, and all integrated peripherals - and is validated across voltage and process corners. The R7F7016874AFP-C#AA1 datasheet specifies derating curves for junction temperature up to 150°C under defined thermal conditions.

Does R7F7016874AFP-C#AA1 support JTAG debugging in production mode?

Yes, R7F7016874AFP-C#AA1 supports full JTAG debugging via the dedicated JP0 port even in production firmware, provided the debug enable fuse remains unblown. Once the security fuse is programmed, JTAG access is disabled for all non-secure debug operations - but the R7F7016874AFP-C#AA1 retains a secure debug channel accessible only after authenticated challenge-response handshake using ICUMD keys.

How does the ICUMD in R7F7016874AFP-C#AA1 accelerate secure boot verification?

The ICUMD in R7F7016874AFP-C#AA1 performs SHA-256 hashing and RSA-2048 signature verification in hardware, completing full secure boot image validation in under 12 ms - 4× faster than software-only execution. It operates independently of the CPU cores and uses dedicated DMA to fetch firmware headers directly from flash, ensuring R7F7016874AFP-C#AA1 meets ASIL-D boot-time requirements without CPU resource contention.

Is R7F7016874AFP-C#AA1 pin-compatible with other RH850/F1KH variants?

R7F7016874AFP-C#AA1 shares the same 176-pin LQFP package and pin assignment with all RH850/F1KH-D8 variants (e.g., R7F7016864AFP-C#AA1, R7F7016884AFP-C#AA1). Pin compatibility includes identical power, ground, reset, clock, and peripheral signal mappings - enabling drop-in replacement within the D8 subfamily when memory or peripheral configuration permits.

What Ethernet AVB features are implemented in hardware on R7F7016874AFP-C#AA1?

R7F7016874AFP-C#AA1 implements full IEEE 802.1AS-2011 time synchronization and 802.1Qat stream reservation in hardware, including precise timestamping (±50 ns accuracy), traffic shaping with credit-based shapers, and seamless failover between redundant streams. These features operate autonomously from the CPU, allowing R7F7016874AFP-C#AA1 to maintain AVB compliance under full CPU load without jitter or packet loss.