Renesas R7F7016844AFP-C#AA1

Overview

R7F7016844AFP-C#AA1 from Renesas Electronics is a 32-bit RH850/F1KH-D8 automotive microcontroller featuring a dual-core lockstep CPU, 4 MB on-chip flash memory, and ASIL-B compliant safety architecture. It integrates CAN FD (up to 5 channels), Ethernet AVB, and hardware security module (ICUMD) for secure boot and cryptographic acceleration. Designed for body control modules and gateway ECUs in passenger vehicles.

For engineers reviewing the R7F7016844AFP-C#AA1 datasheet, R7F7016844AFP-C#AA1 pinout, R7F7016844AFP-C#AA1 application, or R7F7016844AFP-C#AA1 equivalent, key selection criteria include ASIL-B certification status, dual-core lockstep fault detection latency, flash endurance (100k write/erase cycles), and ICUMD-supported algorithms (AES-128/256, SHA-256, RSA-2048).

Technical Context

The R7F7016844AFP-C#AA1 implements a dual-core RH850G3K-H CPU with hardware-enforced lockstep execution and cycle-by-cycle comparison. Its safety mechanism includes BIST for flash and RAM, ECC on all SRAM and cache, and dedicated safety monitor (SMU) with configurable error response (interrupt, NMI, or reset).

It supports ISO 26262 ASIL-B compliance out-of-the-box via integrated safety documentation package (FMEDA, safety manual, diagnostic coverage report). The ICUMD cryptographic unit operates independently of the main CPU cores and supports deterministic timing for secure boot verification within ≤120 ms at 120 MHz.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F7016854AFP-C#AA1, the R7F7016844AFP-C#AA1 delivers optimal cost/performance balance for ASIL-B gateways with fixed 4 MB firmware footprints; versus TC377TP, it provides higher memory capacity and native Ethernet AVB without external PHY bridging - reducing BOM count and layout complexity.

Availability

R7F7016844AFP-C#AA1 is available at Aetrix Electronics and suitable for automotive body control modules, central gateway ECUs, and radar preprocessor units requiring stable component supply, long-term lifecycle assurance, and ASIL-B certified silicon.

Supply support for R7F7016844AFP-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 IoT markets.

The RH850/F1KH product line targets ASIL-B and ASIL-C automotive applications including body electronics, chassis, and domain controllers, with emphasis on functional safety, security, and high-speed networking integration.

FAQ

What safety certifications does the R7F7016844AFP-C#AA1 hold?

The R7F7016844AFP-C#AA1 is certified to ISO 26262 ASIL-B with full documentation including FMEDA, safety manual, and diagnostic coverage report. It meets AEC-Q100 Grade 1 requirements and includes built-in safety mechanisms such as lockstep CPU comparison, ECC on all memory, and BIST for flash and RAM. These features are validated and documented for use in automotive safety-related systems without requiring additional customer qualification.

Does the R7F7016844AFP-C#AA1 support CAN FD and Ethernet AVB simultaneously?

Yes, the R7F7016844AFP-C#AA1 supports concurrent operation of all five CAN FD channels and the 100BASE-T1 Ethernet AVB interface. Its hardware MAC layer complies with IEEE 802.1Qav and 802.1AS standards, enabling time-synchronized communication across domains. The integrated DMA and priority-based interrupt controller ensure deterministic latency (<50 µs) for both protocols without CPU resource contention.

What cryptographic algorithms are accelerated by the ICUMD in the R7F7016844AFP-C#AA1?

The ICUMD (Intelligent Cryptographic Unit / Master D) in the R7F7016844AFP-C#AA1 accelerates AES-128/256 (ECB/CBC/CTR/GCM modes), SHA-256, and RSA-2048 operations. It provides secure key storage with tamper detection and supports deterministic timing for secure boot verification completed in ≤120 ms at 120 MHz. All cryptographic operations execute independently of the main CPU cores.

What is the maximum operating frequency and memory configuration of the R7F7016844AFP-C#AA1?

The R7F7016844AFP-C#AA1 operates at up to 240 MHz using its on-chip PLL. It integrates 4 MB of on-chip flash memory with 100k write/erase cycles and 512 KB of SRAM with SEC-DED ECC. Flash supports background read during programming, enabling seamless OTA updates. Both memory blocks are protected by hardware ECC and accessible via tightly coupled buses for deterministic access timing.

Is the R7F7016844AFP-C#AA1 pin-compatible with other RH850/F1KH variants?

Yes, the R7F7016844AFP-C#AA1 is pin-compatible with other members of the RH850/F1KH-D8 variant group, including R7F7016854AFP-C#AA1 (6 MB flash) and R7F7016834AFP-C#AA1 (2 MB flash). All share identical 176-pin LQFP package, pin assignment, and peripheral mapping. Firmware and hardware design can be reused across these variants with only flash size and part number changes required.