Renesas R7FA6M5AH3CFB#AA0

Overview

R7FA6M5AH3CFB#AA0 from Renesas is a high-performance 32-bit Arm Cortex-M33 microcontroller operating at up to 200 MHz, featuring 2 MB dual-bank code flash with background/swap operation, 8 KB data flash, and 512 KB SRAM with parity/ECC. It integrates Ethernet MAC, USB 2.0 High-Speed, dual CAN FD, SDHI, QSPI/OSPI, and Secure Crypto Engine 9 with TrustZone for industrial gateway and secure edge node applications.

For engineers reviewing the R7FA6M5AH3CFB#AA0 datasheet, R7FA6M5AH3CFB#AA0 pinout, R7FA6M5AH3CFB#AA0 application, or R7FA6M5AH3CFB#AA0 equivalent, key selection criteria include its -40°C to +105°C temperature rating, 144-pin LQFP package, dual CAN FD support, hardware-accelerated cryptography (AES/RSA/ECC/SHA256), and integrated Ethernet MAC with RMII interface.

Technical Context

The R7FA6M5AH3CFB#AA0 implements Armv8-M with TrustZone security extension, supporting secure/non-secure MPU regions (8 each), dual Systick timers, and CoreSight ETM-M33 trace. Its memory subsystem includes dual-bank flash enabling live firmware updates without interruption and ECC-protected SRAM for functional safety compliance.

Connectivity is centered on deterministic real-time interfaces: two CAN FD controllers (16 TX/RX buffers each), Ethernet MAC with DMA coupling to EDMAC, USBHS/USBFS dual-role capability, and QSPI/OSPI for external XIP execution. The Secure Crypto Engine 9 provides dedicated accelerators for AES-128/256, RSA-2048/4096, ECC NIST P-256/P-384, and SHA224/SHA256, all coordinated with TrustZone-enforced key isolation and tamper detection.

Key Specifications

Pinout & Package

144-pin LQFP (PLQP0144KA-B), 20 mm × 20 mm, 0.5 mm pitch, -40°C to +105°C operating range. Pin count includes 109 general-purpose I/Os, 21 of which are 5-V tolerant, plus dedicated power, clock, reset, debug, and peripheral function pins.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance secure MCU applications.

Compared with R7FA6M5BH3CFB#AA0, the R7FA6M5AH3CFB#AA0 omits CAN FD-reducing cost and complexity where legacy CAN suffices-while retaining identical security, Ethernet, and memory architecture. Versus STM32H743VIK6, it delivers tighter integration of secure networking peripherals with lower BOM count and deterministic latency.

Availability

R7FA6M5AH3CFB#AA0 is available at Aetrix Electronics and suitable for industrial gateways, secure edge nodes, automotive body controllers, and HMI-enabled PLCs requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for R7FA6M5AH3CFB#AA0 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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and enterprise applications.

The RA6M5 Group, including R7FA6M5AH3CFB#AA0, was designed for secure, real-time edge computing-integrating Arm TrustZone, hardware crypto, and industrial-grade connectivity into a single scalable MCU platform.

FAQ

What is the maximum operating frequency of the R7FA6M5AH3CFB#AA0?

The R7FA6M5AH3CFB#AA0 features an Arm Cortex-M33 core rated for a maximum operating frequency of 200 MHz. This speed is achievable under specified voltage (2.7–3.6 V) and temperature (-40°C to +105°C) conditions, with clock sources including PLL, HOCO, or external crystal. The R7FA6M5AH3CFB#AA0 maintains timing closure across its full I/O and peripheral set at this frequency.

Does the R7FA6M5AH3CFB#AA0 support CAN FD or only classical CAN?

The R7FA6M5AH3CFB#AA0 supports CAN with Flexible Data-rate (CAN FD) compliant with ISO 11898-1. It includes two independent CAN FD modules, each with 16 transmit and 16 receive buffers, enabling mixed classical/CAN FD frame handling at data rates up to 5 Mbps. This capability is confirmed in the RA6M5 datasheet R01DS0366EJ0150 and part numbering scheme ('B' feature code).

What package type and pin count does the R7FA6M5AH3CFB#AA0 use?

The R7FA6M5AH3CFB#AA0 uses a 144-pin LQFP package (PLQP0144KA-B), measuring 20 mm × 20 mm with 0.5 mm pitch. It provides 109 general-purpose I/O pins, 21 of which are 5-V tolerant, along with dedicated power, clock, reset, debug, and peripheral signal pins. This package is rated for operation from -40°C to +105°C.

How does the Secure Crypto Engine 9 (SCE9) in the R7FA6M5AH3CFB#AA0 enhance security?

The Secure Crypto Engine 9 (SCE9) in the R7FA6M5AH3CFB#AA0 provides hardware acceleration for AES-128/256, RSA-2048/4096, ECC (NIST P-256/P-384), and SHA224/SHA256, tightly coupled with Arm TrustZone. It enforces key isolation, tamper detection via dedicated pins, and resistance to power analysis attacks-enabling FIPS 140-2 Level 1 and SESIP certified implementations. The R7FA6M5AH3CFB#AA0 leverages SCE9 to reduce cryptographic latency and eliminate software-side key exposure.

Is the R7FA6M5AH3CFB#AA0 compatible with Renesas' Flexible Software Package (FSP)?

Yes, the R7FA6M5AH3CFB#AA0 is fully supported by Renesas' Flexible Software Package (FSP) v4.x and later. FSP provides HAL drivers, middleware (including AWS IoT, Azure RTOS, FreeRTOS), security libraries (SCE9 APIs), and configuration tools (e2 studio) validated for the RA6M5 Group. The R7FA6M5AH3CFB#AA0 benefits from pre-certified TLS stacks, CAN FD protocol stacks, and Ethernet drivers within FSP.