Renesas R7FA6M5AG3CFC#BA0

Overview

R7FA6M5AG3CFC from Renesas is a high-performance 32-bit Arm Cortex-M33 microcontroller operating at up to 200 MHz, featuring 1.5 MB dual-bank code flash, 8 KB data flash, 512 KB SRAM with ECC/parity, integrated Ethernet MAC, USB 2.0 High-Speed and Full-Speed, dual CAN FD, QSPI/OSPI, and Secure Crypto Engine 9 with TrustZone. It targets industrial IoT gateways requiring secure, real-time connectivity and deterministic control.

For engineers reviewing the R7FA6M5AG3CFC datasheet, R7FA6M5AG3CFC pinout, R7FA6M5AG3CFC application, or R7FA6M5AG3CFC equivalent, key selection criteria include its -40°C to +105°C LQFP-176 package, 200 MHz Cortex-M33 core with memory protection, dual CAN FD interfaces, hardware-accelerated cryptography (AES/RSA/ECC/SHA256), and support for RMII Ethernet PHY interfacing without external transceivers.

Technical Context

The R7FA6M5AG3CFC implements Armv8-M with TrustZone security extension, enabling strict isolation between secure and non-secure firmware execution domains. Its dual-bank flash supports background programming and SWAP operations for zero-downtime firmware updates.

It integrates an Ethernet MAC compliant with IEEE 802.3 (RMII only), two independent CAN FD controllers (ISO 11898-1), and a dedicated Secure Crypto Engine 9 supporting AES-128/256, RSA-2048/3072/4096, ECC NIST P-256/P-384, and SHA224/SHA256 - all accessible via TrustZone-protected APIs.

Key Specifications

Pinout & Package

Package: 176-pin LQFP (PLQP0176KB-C), 24 mm × 24 mm, 0.5 mm pitch, lead-free (Sn), RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA6M5AG3CFC, R7FA6M5AH3CFC provides 500 KB additional flash for larger embedded applications without changing PCB layout or software architecture, while R7FA6M5BG3CFC reduces cost and flash capacity for streamlined firmware deployments where security and peripheral count remain unchanged.

Availability

R7FA6M5AG3CFC is available at Aetrix Electronics and suitable for industrial gateways, secure edge controllers, smart energy meters, and medical diagnostic interfaces requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for R7FA6M5AG3CFC 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 global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.

The RA6M5 Group, including R7FA6M5AG3CFC, is designed for secure, high-performance industrial and IoT edge applications demanding real-time responsiveness, rich connectivity, and hardware-rooted security.

FAQ

What is the maximum operating frequency of the R7FA6M5AG3CFC?

The R7FA6M5AG3CFC operates at a maximum frequency of 200 MHz using its Arm Cortex-M33 core. This speed is achieved with the internal PLL driven by the main clock oscillator (8–24 MHz crystal) or high-speed on-chip oscillator. The core's performance is sustained under full peripheral load within the -40°C to +105°C ambient range specified for the R7FA6M5AG3CFC.

Does the R7FA6M5AG3CFC support Ethernet connectivity without an external PHY?

Yes, the R7FA6M5AG3CFC integrates an IEEE 802.3-compliant Ethernet MAC with RMII interface, allowing direct connection to an RMII-capable PHY. While an external PHY is still required for physical layer signaling (e.g., magnetics and line drivers), the R7FA6M5AG3CFC eliminates the need for an external MAC, reducing component count and simplifying design compared to solutions requiring discrete MAC+PHY chips.

How does the Secure Crypto Engine 9 in the R7FA6M5AG3CFC accelerate cryptographic operations?

The Secure Crypto Engine 9 in the R7FA6M5AG3CFC provides hardware acceleration for AES-128/256, RSA-2048/3072/4096, ECC (NIST P-256/P-384), and SHA224/SHA256. It offloads compute-intensive operations from the Cortex-M33 core, enabling sub-millisecond TLS handshakes and secure firmware signing verification - all within the TrustZone-protected secure world accessible only to authorized firmware running on the R7FA6M5AG3CFC.

What are the key differences between R7FA6M5AG3CFC and R7FA6M5AH3CFC?

The primary difference is code flash capacity: R7FA6M5AG3CFC has 1.5 MB, while R7FA6M5AH3CFC has 2.0 MB. Both share identical package (176-pin LQFP), operating temperature (-40°C to +105°C), peripherals (dual CAN FD, USBHS, Ethernet MAC), security features (TrustZone + SCE9), and pinout. No other functional or electrical differences exist between these two variants of the R7FA6M5AG3CFC family.

Is the R7FA6M5AG3CFC pin-compatible with other RA6M5 group members in the same package?

Yes, all RA6M5 group MCUs in the 176-pin LQFP package (e.g., R7FA6M5AG3CFC, R7FA6M5AH3CFC, R7FA6M5BG3CFC) are fully pin-compatible. They share identical pin functions, electrical characteristics, and mechanical footprint (PLQP0176KB-C). Firmware portability is further enhanced by shared peripheral registers and HAL libraries across the RA6M5 family, making the R7FA6M5AG3CFC a drop-in option for designs targeting this package variant.