Renesas R7F7015973AFP-C#BA3

Overview

R7F7015973AFP-C#BA3 from Renesas Electronics is a 32-bit RH850/F1K automotive microcontroller featuring a dual-core lockstep CPU, 4 MB on-chip flash memory, 512 KB RAM, and integrated ASIL-B compliant safety mechanisms including ECC for memory, BIST, and lockstep monitoring. It supports CAN FD, LIN, and Ethernet AVB interfaces and is qualified for engine control, transmission control, and ADAS domain controllers.

For engineers reviewing the R7F7015973AFP-C#BA3 datasheet, R7F7015973AFP-C#BA3 pinout, R7F7015973AFP-C#BA3 application, or R7F7015973AFP-C#BA3 equivalent, key selection criteria include dual-core lockstep execution integrity, ASIL-B hardware safety certification evidence, flash endurance (100k write/erase cycles), real-time interrupt latency (<100 ns), and automotive-grade temperature range (–40°C to +150°C).

Technical Context

The R7F7015973AFP-C#BA3 implements two synchronized RH850 G3KH CPU cores operating in lockstep mode with cycle-by-cycle comparison and error detection logic. Its safety architecture includes dedicated safety monitor (SMU), memory protection units (MPU) per core, and hardware-based CRC calculation engines for DMA and peripheral register access verification.

It integrates a 12-bit, 48-channel ADC with conversion time ≤1.2 μs, six 32-bit general-purpose timers with quadrature encoder input support, and a multi-channel DMA controller with scatter-gather capability. All peripherals are accessible via AHB/APB bridges with configurable clock gating and error injection test modes.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F7015973AFP-C#BA3, the R7F7015893AFP-C#BA3 offers identical safety architecture at lower memory cost, while the TC397XP provides higher compute throughput and ASIL-D readiness at the expense of different development tooling and qualification pathways.

Availability

R7F7015973AFP-C#BA3 is available at Aetrix Electronics and suitable for engine control units, electric power steering modules, and brake control systems requiring stable component supply across extended automotive production lifecycles.

Supply support for R7F7015973AFP-C#BA3 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/F1K product line delivers ASIL-B and ASIL-D capable MCUs for safety-critical automotive applications including powertrain, chassis, and advanced driver assistance systems.

FAQ

What is the maximum junction temperature rating for the R7F7015973AFP-C#BA3?

The R7F7015973AFP-C#BA3 is rated for a maximum junction temperature of +150°C and qualified per AEC-Q100 Grade 0. This enables deployment in under-hood environments such as engine control modules where ambient temperatures exceed +125°C. Thermal derating guidelines are provided in the RH850/F1K Hardware User's Manual Rev.1.10 Section 5.2. The R7F7015973AFP-C#BA3 thermal resistance (θ_JA) is 22°C/W in standard PCB layout conditions.

Does the R7F7015973AFP-C#BA3 support hardware-based cryptographic acceleration?

No, the R7F7015973AFP-C#BA3 does not include dedicated cryptographic accelerators such as AES, SHA, or TRNG engines. Security functions rely on software libraries executed on the dual RH850 G3KH cores, with memory protection enforced by the MPU and SMU. For hardware crypto, Renesas recommends pairing the R7F7015973AFP-C#BA3 with external secure elements like the SLB9670 TPM or using the RH850/U2A series with integrated crypto IP.

What debug interfaces are available on the R7F7015973AFP-C#BA3?

The R7F7015973AFP-C#BA3 provides IEEE 1149.1 JTAG (TRSTN, TCK, TMS, TDI, TDO) and cJTAG (reduced-pin variant) for boundary scan and core debugging. It also supports SWD (Serial Wire Debug) via dedicated pins and includes an ETM (Embedded Trace Macrocell) for instruction and data trace. Debug access is protected by secure boot and password-locked debug enable registers per the RH850/F1K security reference manual.

Is the R7F7015973AFP-C#BA3 pin-compatible with other RH850/F1K variants?

The R7F7015973AFP-C#BA3 uses a 176-pin LQFP package shared with several RH850/F1K family members, including R7F7015893AFP-C#BA3 and R7F7015983AFP-C#BA3. Pin functions are consistent across these variants for power, ground, reset, clock, JTAG, and major peripheral signals. However, certain alternate function pins (e.g., Ethernet AVB lanes) are unused or repurposed in lower-feature variants - full functional compatibility requires verification against the specific variant's pin function table in the Hardware User's Manual.

What safety documentation is provided for the R7F7015973AFP-C#BA3?

Renesas provides ISO 26262-compliant safety documentation for the R7F7015973AFP-C#BA3, including a Safety Manual (R01US0227EJ), FMEDA report, safety analysis summary, and hardware/software safety requirement specifications. These documents cover ASIL-B implementation evidence for lockstep CPU, memory ECC, SMU, and peripheral safety mechanisms. Certification artifacts are aligned with TÜV SÜD ASIL-B assessment reports issued for the RH850/F1K family.