Renesas R7F7015873AFP-C#KA3

Overview

R7F7015873AFP-C#KA3 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 integrated ASIL-D compliant safety mechanisms including ECC-protected RAM, BIST, and hardware watchdog timers. It operates at up to 160 MHz, supports CAN FD (up to 5 Mbps), and targets engine control units (ECUs) requiring functional safety certification per ISO 26262.

For engineers reviewing the R7F7015873AFP-C#KA3 datasheet, R7F7015873AFP-C#KA3 pinout, R7F7015873AFP-C#KA3 application, or R7F7015873AFP-C#KA3 equivalent, key selection criteria include ASIL-D hardware safety features, dual-core lockstep execution integrity, flash endurance (100k write/erase cycles), real-time interrupt latency (<100 ns), and support for AUTOSAR 4.3-compliant MCAL drivers.

Technical Context

The R7F7015873AFP-C#KA3 implements a dual-core RH850G3KH CPU with lockstep comparison logic, enabling continuous fault detection during instruction execution. It integrates a 4-channel eMIOS timer module with 32-bit counters, 12-bit SAR ADC with 48 channels, and 2x CAN FD controllers with time-triggered communication support.

Hardware safety features include memory protection units (MPU) with region-based access control, parity/ECC on all SRAM and flash interfaces, and dedicated safety monitor core (SMC) that independently validates CPU operation, clock domain integrity, and reset sequence compliance - all aligned with ISO 26262 ASIL-D requirements.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F7015873AFP-C#KA3, the R7F7015833AFP-C#KA3 offers identical safety architecture and pin compatibility at lower memory density, while the TC377TP requires significant software adaptation to meet equivalent ASIL-D assurance levels - making R7F7015873AFP-C#KA3 the preferred choice for new lockstep-native designs.

Availability

R7F7015873AFP-C#KA3 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 long automotive production lifecycles.

Supply support for R7F7015873AFP-C#KA3 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 delivers ASIL-D capable 32-bit MCUs for powertrain and chassis control, engineered to meet stringent ISO 26262 requirements with hardware-enforced safety mechanisms.

FAQ

What is the maximum operating temperature range for the R7F7015873AFP-C#KA3?

The R7F7015873AFP-C#KA3 is rated for operation from −40 °C to +125 °C ambient temperature, qualified per AEC-Q100 Grade 1 standards. This range supports placement in under-hood automotive environments where thermal stress is critical. The device includes on-die temperature sensors and thermal shutdown circuitry to protect against sustained overtemperature conditions. All electrical specifications in the datasheet are guaranteed across this full range.

Does the R7F7015873AFP-C#KA3 support JTAG debugging in production mode?

Yes, the R7F7015873AFP-C#KA3 retains full IEEE 1149.1 JTAG debug capability in production mode via TRSTn, TCK, TMS, TDI, and TDO pins. However, debug access can be permanently disabled using the on-chip security fuse to prevent unauthorized firmware extraction. When enabled, it supports boundary scan testing, real-time trace, and non-intrusive breakpoint debugging without halting safety-critical tasks.

How does the R7F7015873AFP-C#KA3 implement ASIL-D compliance?

The R7F7015873AFP-C#KA3 achieves ASIL-D readiness through hardware-enforced mechanisms: dual-core lockstep CPU comparison, dedicated Safety Monitor Core (SMC), ECC on all memories, memory protection unit (MPU), and built-in self-test (BIST) for logic and memory. These features are documented in Renesas' ISO 26262 Functional Safety Manual (R01US0224EJxxxx) and require no software overhead to maintain diagnostic coverage - a key differentiator from software-supervised alternatives.

What flash programming voltage and interface does the R7F7015873AFP-C#KA3 use?

The R7F7015873AFP-C#KA3 uses a single 3.3 V supply for both core operation and flash programming - no external VPP voltage is required. Flash programming is performed via the on-chip bootloader using either the CAN FD interface or dedicated serial wire debug (SWD) pins. Programming supports sector erase (4 KB), mass erase, and page programming with checksum verification and ECC auto-generation per write operation.

Is the R7F7015873AFP-C#KA3 pin-compatible with other RH850/F1KH variants?

Yes, the R7F7015873AFP-C#KA3 shares identical 176-pin LQFP mechanical footprint and pin assignment with all RH850/F1KH-D8 family members, including R7F7015833AFP-C#KA3 and R7F7015853AFP-C#KA3. Signal mapping, power domains, and peripheral pin multiplexing are fully consistent across the D8 variant group - enabling scalable memory and feature upgrades without PCB redesign.