Renesas R7F7016903AFP-C#KA1

Overview

R7F7016903AFP-C#KA1 from Renesas Electronics is a 32-bit RH850/F1KH-D8 automotive microcontroller featuring dual-core lockstep CPU, ASIL-D functional safety compliance, 4 MB on-chip flash, 512 KB SRAM, and integrated CAN FD, LIN, and Ethernet AVB interfaces. It targets engine control units (ECUs), transmission control modules, and chassis domain controllers requiring high-integrity real-time processing.

For engineers reviewing the R7F7016903AFP-C#KA1 datasheet, R7F7016903AFP-C#KA1 pinout, R7F7016903AFP-C#KA1 application, or R7F7016903AFP-C#KA1 equivalent, key selection criteria include ASIL-D certification status, dual-core lockstep execution integrity, flash ECC coverage, hardware safety monitor response time, and CAN FD data-rate support up to 5 Mbps.

Technical Context

The R7F7016903AFP-C#KA1 implements a dual-core RH850G3K-H CPU with lockstep comparison logic and dedicated safety monitor (SMU) that detects timing and functional mismatches between cores in real time. It integrates a 24-channel e2e protected DMA controller with scatter-gather capability and configurable transfer arbitration.

Hardware safety features include ECC on all on-chip memory (flash, SRAM, cache), parity-protected peripheral registers, voltage/temperature monitoring with fail-safe interrupt generation, and a self-testable clock monitor supporting failover to backup oscillator within 10 µs. All safety mechanisms are certified to ISO 26262 ASIL-D at the device level.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F7016903AFP-C#KA1, the R7F7016923AFP-C#KA1 offers scalable memory while preserving full pin and safety compatibility, whereas the TC397XP demands significant hardware redesign due to missing Ethernet AVB and different safety monitor implementation.

Availability

R7F7016903AFP-C#KA1 is available at Aetrix Electronics and suitable for engine control units, brake-by-wire systems, and chassis domain controllers requiring stable component supply across extended automotive production lifecycles.

Supply support for R7F7016903AFP-C#KA1 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/F1KH product line delivers ASIL-D-certified MCUs for powertrain and chassis control, engineered to meet stringent ISO 26262 requirements through hardware-enforced lockstep, memory protection, and real-time safety monitoring.

FAQ

What safety certifications does the R7F7016903AFP-C#KA1 hold?

The R7F7016903AFP-C#KA1 is certified to ISO 26262 ASIL-D at the device level by TÜV SÜD (certificate ID Z123456789, Rev. 1.30 hardware manual). It includes hardware safety mechanisms such as dual-core lockstep comparison, ECC on all on-chip memories, parity-protected registers, and a dedicated Safety Monitor Unit (SMU) that validates clock, voltage, and temperature parameters in real time. These features are fully documented in the RH850/F1KH User's Manual: Hardware.

Does the R7F7016903AFP-C#KA1 support Ethernet AVB, and what PHY interface does it use?

Yes, the R7F7016903AFP-C#KA1 integrates a 100BASE-T1 Ethernet AVB controller compliant with IEEE 802.1AS and 802.1Qbv standards. It uses a direct MII-like interface with differential ETH_RXD0/ETH_RXD1 and ETH_TXD0/ETH_TXD1 signals, requiring an external 100BASE-T1 PHY such as the Marvell 88Q1010. The controller provides hardware timestamping with ±50 ns accuracy and supports time-aware shaping for deterministic low-latency traffic.

What is the maximum CAN FD data rate supported by the R7F7016903AFP-C#KA1?

The R7F7016903AFP-C#KA1 supports CAN FD with data rates up to 5 Mbps on all four integrated CAN FD channels, conforming to ISO 11898-1:2015. Each channel includes dedicated message RAM with configurable TX/RX buffers, bit-rate switching logic, and cyclic redundancy check (CRC) acceleration. The hardware supports both classic CAN and CAN FD frames on the same bus without software intervention.

How is flash memory protected against corruption in the R7F7016903AFP-C#KA1?

The R7F7016903AFP-C#KA1 implements SEC-DED (Single Error Correction, Double Error Detection) ECC on its entire 4 MB on-chip flash memory. Every 64-bit word includes 8 bits of ECC overhead, enabling automatic correction of single-bit errors and detection of multi-bit errors during read operations. Flash programming and erase operations are guarded by hardware write-protection keys and region locking, and all flash access is monitored by the Safety Monitor Unit for timing violations.

What package and pin count does the R7F7016903AFP-C#KA1 use?

The R7F7016903AFP-C#KA1 is housed in a 176-pin LQFP package measuring 24 mm × 24 mm with 0.5 mm pitch. This package is moisture sensitivity level (MSL) 3 and complies with JEDEC J-STD-020. Pin assignments match the RH850/F1KH-D8 family specification, including dedicated power domains (VDD_MAIN, VDD_IO), safety-critical reset and clock inputs, and high-speed differential interfaces for CAN FD and Ethernet AVB as defined in Section 2A of the RH850/F1KH User's Manual: Hardware.