Renesas R7FA6M4AE3CFM#BA0

Overview

R7FA6M4AE3CFM#BA0 from Renesas is a high-performance 32-bit Arm Cortex-M33 microcontroller operating at up to 200 MHz, featuring 768 KB dual-bank code flash with background SWAP, 8 KB data flash, 256 KB SRAM with ECC/parity, integrated Ethernet MAC, USB 2.0 Full-Speed, SDHI, QSPI/OSPI, dual CAN, and Secure Crypto Engine (SCE9) with TrustZone for secure IoT edge nodes.

For engineers reviewing the R7FA6M4AE3CFM#BA0 datasheet, R7FA6M4AE3CFM#BA0 pinout, R7FA6M4AE3CFM#BA0 application, or R7FA6M4AE3CFM#BA0 equivalent, key selection considerations include its 64-pin LQFP package, -40°C to +105°C industrial temperature grade, 768 KB flash size, dual CAN support, and hardware-accelerated AES/RSA/ECC for secure firmware updates and device authentication in connected industrial gateways.

Technical Context

The R7FA6M4AE3CFM#BA0 implements Armv8-M architecture with TrustZone security partitioning, enabling secure and non-secure execution environments with separate MPUs (8 regions each). Its dual-bank flash supports seamless firmware updates via background SWAP operation without system interruption.

It integrates a full-featured peripheral set including ETHERC/EDMAC for zero-CPU-load Ethernet packet handling, USBFS with internal transceiver supporting host/device roles, and SCE9 crypto engine delivering AES-128/256, RSA-2048/3072, ECC NIST P-256/P-384, and SHA-256 acceleration - all coordinated under lifecycle-managed secure boot and key injection protocols.

Key Specifications

Pinout & Package

64-pin LQFP (PLQP0064KB-C), 10 mm × 10 mm body, 0.5 mm pitch, exposed pad optional. Pin functions validated per Renesas R01DS0365EJ0160 Rev.1.60 datasheet Section 1.5.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA6M4AE3CFM#BA0, the AF3CFM variant provides headroom for larger secure bootloaders and cryptographic libraries, while the AD3CFM variant reduces flash cost without sacrificing peripheral capability - enabling tiered product families from a single hardware platform.

Availability

R7FA6M4AE3CFM#BA0 is available at Aetrix Electronics and suitable for industrial gateways, secure edge nodes, motor control hubs, and HMI-enabled PLCs requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for R7FA6M4AE3CFM#BA0 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 RA6M4 group is designed for secure, connected industrial edge applications - combining high-performance Arm Cortex-M33 execution, rich connectivity (Ethernet, USB, CAN, QSPI/OSPI), and hardware-rooted security (TrustZone + SCE9) in scalable packages.

FAQ

What is the maximum operating frequency of the R7FA6M4AE3CFM#BA0?

The R7FA6M4AE3CFM#BA0 operates at a maximum frequency of 200 MHz using its Arm Cortex-M33 core. This speed is achieved with the PLL clock source and supports real-time deterministic execution for industrial control and communication stacks. The R7FA6M4AE3CFM#BA0 maintains this performance across its full -40°C to +105°C operating temperature range with appropriate voltage regulation.

Does the R7FA6M4AE3CFM#BA0 include an integrated Ethernet PHY?

No, the R7FA6M4AE3CFM#BA0 includes only the Ethernet MAC (ETHERC) and DMA controller (EDMAC), not a physical layer transceiver. It supports RMII interface and requires an external PHY such as the LAN8720A or DP83848 for 10/100 Mbps Ethernet connectivity. The R7FA6M4AE3CFM#BA0 provides all necessary MAC signals including ETH_MDC, ETH_MDIO, ETH_TXD0–3, and ETH_RXD0–3.

How much SRAM does the R7FA6M4AE3CFM#BA0 provide, and what error protection is implemented?

The R7FA6M4AE3CFM#BA0 provides 256 KB of on-chip SRAM with configurable parity or ECC protection. Parity covers 192 KB, while ECC protects 64 KB - allowing developers to allocate critical data structures to ECC-protected regions for enhanced reliability. This dual-protection scheme meets functional safety requirements for industrial applications without external memory controllers.

What security features are integrated into the R7FA6M4AE3CFM#BA0 beyond Arm TrustZone?

Beyond Arm TrustZone, the R7FA6M4AE3CFM#BA0 integrates the Secure Crypto Engine 9 (SCE9) with hardware accelerators for AES-128/256, RSA-2048/3072, ECC NIST P-256/P-384, SHA-256, and GHASH. It also includes device lifecycle management, tamper detection pins, secure pin multiplexing, and a 128-bit unique ID - all coordinated under a unified secure boot flow verified by Renesas' Secure Boot Manager.

Which package type and pin count does the R7FA6M4AE3CFM#BA0 use?

The R7FA6M4AE3CFM#BA0 uses a 64-pin LQFP package (PLQP0064KB-C), measuring 10 mm × 10 mm with 0.5 mm pitch. It provides 41 general-purpose I/O pins, 1 dedicated input pin, 42 pull-up resistors, 41 N-ch open-drain outputs, and 9 pins with 5-V tolerance - optimized for compact industrial control modules and cost-sensitive edge devices.