Renesas R7F701462EAFB-C#BA0

Overview

R7F701462EAFB-C#BA0 from Renesas Electronics is a 32-bit RH850/D1M1 automotive microcontroller with 2 MB flash, 256 KB RAM, and integrated CAN FD, LIN, and Ethernet AVB interfaces. It operates at up to 160 MHz, supports ASIL-B functional safety per ISO 26262, and targets body control modules, gateway ECUs, and domain controllers in modern vehicle architectures.

For engineers reviewing the R7F701462EAFB-C#BA0 datasheet, R7F701462EAFB-C#BA0 pinout, R7F701462EAFB-C#BA0 application, or R7F701462EAFB-C#BA0 equivalent, key selection criteria include its dual-core lockstep capability, hardware security module (HSM), 12-bit ADC with 48 channels, and support for AUTOSAR 4.x and Classic/Adaptive platforms.

Technical Context

The R7F701462EAFB-C#BA0 implements the RH850 G3M CPU core with superscalar 5-stage pipeline and dual-issue capability. It integrates a dedicated Safety Support Core (SSC) for lockstep monitoring and error detection, alongside a hardware memory protection unit (MPU) enforcing ASIL-B partitioning across software domains.

Its peripheral set includes two CAN FD controllers with time-triggered communication support, one 100BASE-T1 Ethernet AVB interface with IEEE 802.1Qbv time-aware shaper, and a configurable 12-bit SAR ADC with simultaneous sampling on up to 4 channels - all synchronized via a centralized clock and reset management system.

Key Specifications

Pinout & Package

This device uses a 176-pin LQFP package (24 mm × 24 mm, 0.5 mm pitch) with thermal pad, optimized for automotive PCB layouts requiring EMI resilience and thermal dissipation in under-hood environments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F701462EAFB-C#BA0, the R7F701461EAFB-C#BA0 offers identical safety and interface capabilities at lower memory cost, while the TC377TP requires external components to match Ethernet AVB and secure boot features - increasing PCB area, BOM count, and functional safety certification scope.

Availability

R7F701462EAFB-C#BA0 is available at Aetrix Electronics and suitable for automotive body electronics, gateway ECUs, and domain controllers requiring stable component supply, long-term lifecycle support, and ASIL-B certified silicon.

Supply support for R7F701462EAFB-C#BA0 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/D1M1 product line delivers high-performance, safety-certified MCUs targeting next-generation automotive ECUs with integrated networking, security, and real-time deterministic processing.

FAQ

What is the maximum operating frequency of the R7F701462EAFB-C#BA0?

The R7F701462EAFB-C#BA0 operates at a maximum CPU frequency of 160 MHz. This is achieved using the on-chip PLL with an external 8–20 MHz crystal input. The core maintains deterministic timing across temperature ranges from −40°C to 125°C, validated per AEC-Q100 Grade 1 requirements. All peripherals-including CAN FD, Ethernet AVB, and ADC-are fully functional at this clock rate without throttling or latency penalties.

Does the R7F701462EAFB-C#BA0 support AUTOSAR 4.x?

Yes, the R7F701462EAFB-C#BA0 supports AUTOSAR 4.3 and 4.4 through Renesas' certified MCAL drivers and configuration tools. Its dual-core lockstep architecture, memory protection unit, and hardware safety mechanisms meet AUTOSAR's requirements for ASIL-B software partitions. The R7F701462EAFB-C#BA0 also provides dedicated hardware resources for OS scheduling, interrupt prioritization, and memory isolation essential for Classic AUTOSAR compliance.

What safety certifications does the R7F701462EAFB-C#BA0 hold?

The R7F701462EAFB-C#BA0 is certified to ISO 26262:2018 ASIL-B at the hardware level (Part 5) and supports ASIL-B software development (Part 6). It includes integrated safety mechanisms such as lockstep CPU cores, memory BIST, ECC on flash and RAM, and a dedicated Safety Support Core (SSC). These features are documented in Renesas' FMEDA report and safety manual, both accessible via official Renesas support channels for the R7F701462EAFB-C#BA0.

Can the R7F701462EAFB-C#BA0 operate without an external crystal?

No, the R7F701462EAFB-C#BA0 requires an external 8–20 MHz crystal connected to CLKIN/CLKOUT pins for reliable operation. While it supports external clock input mode, the crystal-based configuration is mandatory for meeting AEC-Q100 Grade 1 timing stability and jitter specifications. The internal RC oscillator is only intended for initial boot and failsafe recovery-not for sustained operation or CAN FD/Ethernet timing accuracy.

How many CAN FD channels does the R7F701462EAFB-C#BA0 integrate?

The R7F701462EAFB-C#BA0 integrates two independent CAN FD controllers compliant with ISO 11898-1:2015. Each supports data rates up to 5 Mbps, flexible data payloads (up to 64 bytes), and time-triggered communication modes. Both channels share no common registers or buffers, enabling concurrent operation-for example, one for powertrain diagnostics and another for body domain messaging-without arbitration delay or resource contention.