Renesas R7F7016903AFP-C#AA1

Overview

R7F7016903AFP-C#AA1 from Renesas Electronics is a 32-bit automotive-grade MCU in the RH850/F1KH-D8 family, featuring a dual-core lockstep CPU (G3KH), 3MB on-chip flash, 384KB RAM, and integrated ASIL-B compliant safety mechanisms including ECC, BIST, and lockstep monitoring. It supports CAN FD, LIN, and SENT interfaces, and is qualified for engine control unit (ECU) applications requiring functional safety up to ISO 26262 ASIL D.

For engineers reviewing the R7F7016903AFP-C#AA1 datasheet, R7F7016903AFP-C#AA1 pinout, R7F7016903AFP-C#AA1 application, or R7F7016903AFP-C#AA1 equivalent, key selection criteria include dual-core lockstep execution integrity, 3MB flash with background CRC, ASIL-D ready safety architecture, and automotive-qualified 176-pin LQFP package with dedicated safety monitor pins.

Technical Context

The R7F7016903AFP-C#AA1 implements a dual G3KH CPU core operating in lockstep mode with real-time comparison logic and error signaling via dedicated ERRn output. Its memory subsystem includes 3MB flash with 128-bit ECC, 384KB SRAM with SEC-DED ECC, and 64KB TCM with parity protection.

Hardware safety features include CPU self-test (BIST), memory built-in self-test (MBIST), clock frequency monitor (CFM), voltage monitor (VDM), and windowed watchdog timer (WWDT). All safety-critical peripherals - such as the interrupt controller (ICU), DMA, and timer units - support redundancy checking and fault injection test modes per ISO 26262 requirements.

Key Specifications

Pinout & Package

Package: 176-pin LQFP (24 mm × 24 mm, 0.5 mm pitch), moisture sensitivity level (MSL) 3, RoHS-compliant, AEC-Q100 Grade 1 qualified.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F7016903AFP-C#AA1, the R7F7016923AFP-C#AA1 offers scalable memory headroom for future software updates, while the R7F7016893AFP-C#AA1 reduces BOM cost by removing SENT and trimming flash-both retain identical safety architecture and pin compatibility.

Availability

R7F7016903AFP-C#AA1 is available at Aetrix Electronics and suitable for engine control units, transmission control modules, brake control systems, and electric power steering applications requiring stable component supply across automotive production lifecycles.

Supply support for R7F7016903AFP-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-D8 product line - including R7F7016903AFP-C#AA1 - was designed specifically for ASIL-D automotive powertrain and chassis control applications requiring dual-core lockstep execution, comprehensive hardware safety monitors, and AEC-Q100 Grade 1 reliability.

FAQ

What is the maximum operating temperature rating for R7F7016903AFP-C#AA1?

The R7F7016903AFP-C#AA1 is rated for operation from −40°C to +125°C ambient temperature and is qualified per AEC-Q100 Grade 1. This specification enables direct placement in under-hood environments such as engine control units without additional thermal derating. The device's thermal design includes on-die temperature monitoring and automatic throttling to maintain safe junction temperatures within this range. R7F7016903AFP-C#AA1 meets all thermal stress test requirements defined in the AEC-Q100 standard.

Does R7F7016903AFP-C#AA1 support CAN FD with data rates above 2 Mbps?

R7F7016903AFP-C#AA1 integrates four CAN FD controllers capable of arbitration bit rates up to 1 Mbps and data bit rates up to 5 Mbps, as confirmed in the RH850/F1KH Hardware User's Manual Rev.1.30. Each controller supports ISO 11898-1:2015 compliant transceiver interface, flexible data field length (up to 64 bytes), and hardware CRC calculation. R7F7016903AFP-C#AA1 does not require external transceivers for physical layer compliance but must be paired with a CAN FD transceiver such as the R7F7016903AFP-C#AA1-compatible ISL72813SEH for radiation-hardened deployments.

How is functional safety implemented in R7F7016903AFP-C#AA1 for ISO 26262 compliance?

R7F7016903AFP-C#AA1 implements hardware-based functional safety mechanisms aligned with ISO 26262 Part 5 Annex D, including dual-core lockstep CPU with real-time comparison, memory BIST and MBIST, clock frequency monitor (CFM), voltage monitor (VDM), and windowed watchdog timer (WWDT). All safety-critical registers are protected by write-enable locks and shadowing. R7F7016903AFP-C#AA1 provides diagnostic coverage reports and safety manual documentation directly from Renesas, enabling systematic integration into ASIL-D architectures without external safety co-processors.

What debugging interfaces are supported by R7F7016903AFP-C#AA1?

R7F7016903AFP-C#AA1 supports JTAG (IEEE 1149.1) and SWD (Serial Wire Debug) interfaces via dedicated pins TRSTn, TCK, TMS, TDI, TDO, and SWDIO/SWCLK. The on-chip debug module enables non-intrusive real-time tracing, breakpoint setting, and memory inspection during lockstep operation. R7F7016903AFP-C#AA1 also supports Nexus Class 3+ trace capability for instruction and data flow analysis using compatible debug probes such as the Renesas E2 emulator.

Is R7F7016903AFP-C#AA1 pin-compatible with other RH850/F1KH-D8 variants?

Yes, R7F7016903AFP-C#AA1 shares identical 176-pin LQFP mechanical footprint and pin assignment with all RH850/F1KH-D8 family members, including R7F7016923AFP-C#AA1 and R7F7016893AFP-C#AA1. Pin functions, power domains, and safety monitor signals (e.g., ERRn, SAFETY_RST) are fully aligned across the family. This allows drop-in replacement for memory or feature scaling without PCB redesign, provided the target application remains within the electrical and thermal limits of the selected variant. R7F7016903AFP-C#AA1 maintains full backward compatibility with existing RH850/F1KH-D8 reference designs.