Renesas R7FA6M5AH3CFC#BA0

Overview

R7FA6M5AH3CFC 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/Full-Speed, dual CAN FD, SDHI, QSPI/OSPI, and Secure Crypto Engine (AES/RSA/ECC/SHA256) with Arm TrustZone for secure edge IoT gateways.

For engineers reviewing the R7FA6M5AH3CFC datasheet, R7FA6M5AH3CFC pinout, R7FA6M5AH3CFC application, or R7FA6M5AH3CFC equivalent, key selection considerations include industrial temperature range (−40°C to +105°C), 176-pin LQFP package, dual CAN FD support, integrated Ethernet PHY interface readiness, and hardware-accelerated cryptography for firmware signing and secure boot validation.

Technical Context

The R7FA6M5AH3CFC implements Armv8-M with TrustZone security extension, supporting secure/non-secure execution states via separate MPU regions (8 secure + 8 non-secure), 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/16 RX buffers each), IEEE 802.3-compliant Ethernet MAC with DMA coupling, USBHS/USBFS dual-role capability, and OSPI/QSPI for external XIP execution. Analog integration includes dual 12-bit ADCs (5 Msps interleaved), dual 12-bit DACs, and on-die temperature sensor with ADC routing.

Key Specifications

Pinout & Package

176-pin LQFP (PLQP0176KB-C) package with 132 general-purpose I/O pins, 17 of which are 5-V tolerant, plus dedicated power, clock, reset, debug (SWD), and peripheral-specific pins including Ethernet RMII (TXD0–TXD1, RXD0–RXD1, REFCLK), USBHS (D+, D−), CANFD0/CANFD1 (TX, RX), QSPI/OSPI (IO0–IO7, CLK, CS), and SDHI (CMD, CLK, DAT0–DAT3).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Arm Cortex-M33 microcontroller applications.

Compared with R7FA6M5BH3CFC, the R7FA6M5AH3CFC adds CAN FD for faster firmware download and diagnostics; versus STM32H743VI, it delivers out-of-box Ethernet and CAN FD with hardware crypto-reducing design risk and time-to-certification for secure industrial gateways.

Availability

R7FA6M5AH3CFC is available at Aetrix Electronics and suitable for industrial automation, smart grid infrastructure, and automotive diagnostic equipment requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for R7FA6M5AH3CFC 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power management ICs for industrial, automotive, and enterprise applications.

The RA6M5 Group targets secure, high-performance edge computing with integrated connectivity (Ethernet, USB, CAN FD) and hardware-assisted security - designed specifically for industrial IoT gateways and medical edge devices requiring functional safety and data integrity.

FAQ

What is the maximum operating frequency of the R7FA6M5AH3CFC?

The R7FA6M5AH3CFC operates at a maximum frequency of 200 MHz using its Arm Cortex-M33 core. This speed is achieved with the on-chip PLL driven by the main clock oscillator (MOSC) or high-speed on-chip oscillator (HOCO). The R7FA6M5AH3CFC maintains full peripheral functionality-including Ethernet MAC, USBHS, and dual CAN FD-at this frequency, as verified in Renesas' R01DS0366EJ0150 datasheet Section 1.4.

Does the R7FA6M5AH3CFC support dual-bank flash for firmware updates?

Yes, the R7FA6M5AH3CFC includes 2 MB of code flash memory configured in dual-bank architecture, enabling background programming and SWAP operations. This allows one bank to execute application code while the other is being rewritten-critical for fail-safe over-the-air updates. The R7FA6M5AH3CFC's flash controller supports automatic bank switching upon reset, as documented in Section 1.2 of the R01DS0366EJ0150 datasheet.

What security features does the R7FA6M5AH3CFC provide beyond Arm TrustZone?

Beyond Arm TrustZone, the R7FA6M5AH3CFC integrates the Secure Crypto Engine 9 (SCE9) with hardware acceleration for AES-128/256, RSA-2048/4096, ECC-P256/P384, and SHA256. It also includes tamper detection pins, power analysis resistance, unique 128-bit ID, and device lifecycle management. These features are validated in the R7FA6M5AH3CFC's security certification documentation and enable secure boot, encrypted firmware storage, and TLS offload without software crypto overhead.

Which package type does the R7FA6M5AH3CFC use, and what are its I/O capabilities?

The R7FA6M5AH3CFC uses a 176-pin LQFP package (PLQP0176KB-C) measuring 24 mm × 24 mm with 0.5 mm pitch. It provides 132 general-purpose I/O pins, 17 of which are 5-V tolerant, along with dedicated signals for Ethernet RMII, USBHS, dual CAN FD, QSPI/OSPI, and SDHI. Pin configuration details-including multiplexed functions-are specified in Table 1.15 of the R01DS0366EJ0150 datasheet.

Can the R7FA6M5AH3CFC operate in extended temperature environments?

Yes, the R7FA6M5AH3CFC is rated for operation from −40°C to +105°C, qualifying it for industrial control cabinets, outdoor smart grid equipment, and under-hood automotive diagnostic tools. This extended temperature grade is explicitly defined in Table 1.13 of the R01DS0366EJ0150 datasheet and confirmed by Renesas' industrial qualification testing per JEDEC JESD22-A108.