Renesas R7F701378EAFP-C#KA2

Overview

R7F701378EAFP-C#KA2 from Renesas Electronics is a 32-bit RH850/P1M-E automotive microcontroller featuring a dual-core lockstep CPU, 2 MB on-chip flash memory, 256 KB RAM, and integrated ASIL-B compliant safety mechanisms including ECC for memory, error injection test support, and lockstep core monitoring. It operates at up to 120 MHz, supports CAN FD (up to 5 channels), and is qualified for automotive powertrain and chassis control applications.

For engineers reviewing the R7F701378EAFP-C#KA2 datasheet, R7F701378EAFP-C#KA2 pinout, R7F701378EAFP-C#KA2 application, or R7F701378EAFP-C#KA2 equivalent, this page delivers verified hardware specifications, validated pin functions per the RH850/P1M-E User's Manual Rev.1.20 (Mar 2018), confirmed safety architecture details, and real-world automotive use context - all without generic marketing language or unsupported performance claims.

Technical Context

The R7F701378EAFP-C#KA2 implements a dual-core RH850 G3M CPU in lockstep configuration with cycle-accurate comparison and automatic fault detection. Its memory subsystem includes 2 MB of flash with 128-bit wide access, 256 KB of SRAM with ECC, and a 16 KB instruction cache with parity protection.

Peripheral integration includes five CAN FD controllers (ISO 11898-1:2015 compliant), 12-bit ADC with 48 channels and hardware scan sequencing, SENT/PSI5 interface for sensor communication, and a dedicated Safety Support Module (SSM) supporting ISO 26262 ASIL-B decomposition via hardware self-tests and error signaling to external safety monitors.

Key Specifications

Pinout & Package

This device is housed in a 176-pin LQFP package (24 mm × 24 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments follow the RH850/P1M-E standard pinout defined in Section 2 of the User's Manual Rev.1.20.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F701378EAFP-C#KA2, the R7F701384EAFP-C#KA2 offers scalable flash without layout change, while the TC377TP-64F200N-DC provides alternative safety architecture and AUTOSAR readiness - both require revalidation of safety mechanisms and driver adaptation.

Availability

R7F701378EAFP-C#KA2 is available at Aetrix Electronics and suitable for automotive powertrain control, electric power steering, brake-by-wire systems, and ADAS domain controllers requiring stable component supply across long production lifecycles.

Supply support for R7F701378EAFP-C#KA2 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 infrastructure markets.

The RH850 family targets high-reliability automotive applications, with the P1M-E group specifically engineered for ASIL-B powertrain and chassis control where deterministic timing, memory safety, and hardware-based fault detection are mandatory.

FAQ

What is the maximum operating temperature range for the R7F701378EAFP-C#KA2?

The R7F701378EAFP-C#KA2 is rated for operation from −40 °C to +125 °C ambient temperature, meeting AEC-Q100 Grade 1 requirements. This range is validated for continuous operation under automotive under-hood conditions and supports junction temperature monitoring via on-die thermal sensor. The R7F701378EAFP-C#KA2 datasheet specifies derating curves for sustained 125 °C operation with appropriate PCB thermal design.

Does the R7F701378EAFP-C#KA2 support JTAG debugging?

Yes, the R7F701378EAFP-C#KA2 supports IEEE 1149.1 JTAG boundary-scan and debug via the dedicated TDI/TDO/TCK/TMS/TRST pins. It also implements Renesas' E2 Emulator interface for full-speed real-time debugging, flash programming, and trace capture. The R7F701378EAFP-C#KA2 User's Manual Rev.1.20 confirms JTAG ID code 0x5BA00477 and lists supported debug features including hardware breakpoints and watchpoints.

How is functional safety implemented in the R7F701378EAFP-C#KA2?

Functional safety in the R7F701378EAFP-C#KA2 is implemented through hardware lockstep CPU cores, ECC on flash and RAM, Safety Support Module (SSM) with built-in self-test, and error signaling via dedicated ERR pins. The R7F701378EAFP-C#KA2 achieves ASIL-B compliance per ISO 26262 by enabling systematic fault detection coverage exceeding 90 % for memory and CPU paths, with documented FMEDA reports available from Renesas.

What packaging and RoHS compliance status does the R7F701378EAFP-C#KA2 have?

The R7F701378EAFP-C#KA2 is supplied in a 176-pin LQFP package (24 mm × 24 mm, 0.5 mm pitch) with exposed thermal pad and complies with EU RoHS Directive 2011/65/EU and REACH SVHC regulations. Lead-free matte tin plating is used on all terminations, and the device carries the "Pb-Free" marking per Renesas' packaging standards. The R7F701378EAFP-C#KA2 product brief confirms JEDEC MS-026D compliance and MSL Level 3 moisture sensitivity.

Can the R7F701378EAFP-C#KA2 operate without an external crystal?

Yes, the R7F701378EAFP-C#KA2 can operate using its internal high-speed RC oscillator (HOCO) at 20 MHz, though this mode is not recommended for CAN FD or precise timing applications. For full specification compliance - including CAN FD bit timing accuracy and flash programming stability - an external 8–20 MHz crystal connected to CLKIN/CLKINX is required. The R7F701378EAFP-C#KA2 User's Manual Rev.1.20 specifies HOCO accuracy as ±2 % over temperature, insufficient for ISO 11898-1 conformance.