Renesas R7F701384EAFP-C#KA2

Overview

R7F701384EAFP-C#KA2 from Renesas Electronics is a 32-bit RH850/P1M-E automotive microcontroller featuring a dual-core lockstep CPU, 4 MB on-chip flash memory, 512 KB SRAM, and integrated ASIL-B compliant safety mechanisms including ECC for memory, PE guard, and system error notification control. It supports CAN FD, LIN, SENT, and PSI5 interfaces and is qualified for automotive powertrain and chassis applications.

For engineers reviewing the R7F701384EAFP-C#KA2 datasheet, R7F701384EAFP-C#KA2 pinout, R7F701384EAFP-C#KA2 application, or R7F701384EAFP-C#KA2 equivalent, key selection criteria include dual-core lockstep execution integrity, ASIL-B hardware safety features, 4 MB flash with background programming support, CAN FD data rate up to 5 Mbps, and 176-pin LQFP package with dedicated safety monitoring pins.

Technical Context

The R7F701384EAFP-C#KA2 implements a dual-core RH850 G3M CPU in lockstep configuration with cycle-by-cycle comparison and error detection logic, enabling real-time fault detection per ISO 26262 requirements. It integrates a dedicated Safety Support Core (SSC) for independent monitoring of CPU execution, memory integrity, and clock domain consistency.

Hardware safety features include ECC protection on both flash and SRAM, parity checking on peripheral registers, memory built-in self-test (MBIST), and configurable window watchdog timers with independent clock sources. The device supports SafeTI™-compliant diagnostic software libraries and provides dedicated safety status registers accessible via JTAG and dedicated safety debug interface.

Key Specifications

Pinout & Package

Package: 176-pin LQFP (24 mm × 24 mm, 0.4 mm pitch), thermally enhanced with exposed pad (EPAD) for improved heat dissipation in automotive powertrain modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F701384EAFP-C#KA2, the R7F701383EAFP-C#KA2 reduces flash capacity but maintains identical safety certification and pin compatibility, while the R7F701394EAFP-C#KA2 extends communication bandwidth and memory for more complex domain control - all three share the same lockstep CPU, SSC, and ASIL-B hardware foundation.

Availability

R7F701384EAFP-C#KA2 is available at Aetrix Electronics and suitable for engine control units, transmission control units, electric power steering systems, and brake control modules requiring stable component supply across automotive production lifecycles.

Supply support for R7F701384EAFP-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 IoT markets.

The RH850 family targets automotive functional safety applications, with the P1M-E group specifically engineered for ASIL-B powertrain and chassis control - emphasizing lockstep execution, memory ECC, and integrated safety monitoring.

FAQ

What is the maximum operating frequency of the R7F701384EAFP-C#KA2?

The R7F701384EAFP-C#KA2 operates at a maximum CPU frequency of 200 MHz. This applies to both cores in lockstep configuration, with timing validated across the full −40°C to +125°C temperature range and under worst-case voltage conditions. The frequency is derived from an internal PLL fed by an external crystal or oscillator connected to the CLKIN pin, and it remains stable during safety diagnostics and fault injection testing required for ASIL-B compliance.

Does the R7F701384EAFP-C#KA2 support over-the-air (OTA) firmware updates?

Yes, the R7F701384EAFP-C#KA2 supports secure OTA firmware updates via its 4 MB on-chip flash memory with background programming capability. The flash is divided into independently erasable sectors, allowing one bank to execute active code while another is being reprogrammed. This functionality is enabled through the built-in Flash Control Unit (FCU) and is certified for use in ASIL-B systems when combined with checksum verification, signature validation, and rollback protection implemented in application firmware.

What safety certifications does the R7F701384EAFP-C#KA2 target?

The R7F701384EAFP-C#KA2 is designed to meet ISO 26262 ASIL-B requirements at the hardware level. It includes lockstep CPU cores, ECC on flash and SRAM, parity on peripheral registers, Safety Support Core (SSC), memory BIST, and configurable window watchdogs. Renesas provides safety manuals, FMEDA reports, and diagnostic software libraries to support ASIL-B system integration - though final certification depends on system-level implementation and toolchain qualification.

Which communication protocols are supported by the R7F701384EAFP-C#KA2 for automotive sensor interfacing?

The R7F701384EAFP-C#KA2 natively supports SENT (Single Edge Nibble Transmission), PSI5 (Peripheral Sensor Interface 5), and CAN FD for automotive sensor interfacing. It includes four dedicated SENT decoders and two PSI5 receivers with hardware timestamping, enabling direct connection to pressure, temperature, and position sensors without external signal conditioning. CAN FD interfaces operate up to 5 Mbps and support flexible data-length payloads essential for high-bandwidth sensor fusion.

Is the R7F701384EAFP-C#KA2 pin-compatible with other RH850/P1M-E microcontrollers?

Yes, the R7F701384EAFP-C#KA2 is pin-compatible with other members of the RH850/P1M-E family in the 176-pin LQFP package, including the R7F701383EAFP-C#KA2 and R7F701394EAFP-C#KA2. Pin functions, power domains, and safety-related signals (e.g., SAFE_MODE, RESETN, STBY) are identically mapped. This allows hardware reuse across product variants - for example, upgrading from 2 MB to 4 MB flash requires only firmware and BOM changes, not PCB redesign.