Renesas R7FA6M4AE3CFB#AA0

Overview

R7FA6M4AE3CFB#AA0 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 operation, 8 KB data flash, and 256 KB SRAM with parity/ECC. It integrates Ethernet MAC, USB 2.0 Full-Speed, SDHI, QSPI/OSPI, dual CAN, and Secure Crypto Engine (SCE9) with TrustZone for secure industrial gateway and edge node applications.

For engineers reviewing the R7FA6M4AE3CFB#AA0 datasheet, R7FA6M4AE3CFB#AA0 pinout, R7FA6M4AE3CFB#AA0 application, or R7FA6M4AE3CFB#AA0 equivalent, key selection considerations include its -40°C to +105°C extended temperature rating, 144-pin LQFP package, dual CAN support, integrated Ethernet MAC requiring external PHY, and SCE9-accelerated AES/RSA/SHA256 for firmware signing and secure boot.

Technical Context

The R7FA6M4AE3CFB#AA0 implements Armv8-M architecture with TrustZone security extension, supporting secure/non-secure MPU regions and dual Systick timers. Its memory subsystem includes dual-bank flash enabling live firmware updates without interruption and ECC-protected SRAM for safety-critical execution.

Connectivity is centered on hardware-accelerated peripherals: ETHERC/EDMAC enables zero-CPU packet handling; USBFS supports host/device modes with internal transceiver; QSPI/OSPI controllers interface directly with serial NOR/NAND and OctaFlash; and two CAN modules comply with ISO 11898-1 with 32 configurable mailboxes.

Key Specifications

Pinout & Package

Package: 144-pin LQFP (PLQP0144KA-B), 20 mm × 20 mm, 0.5 mm pitch, -40°C to +105°C operating range.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA6M4AF3CFB#AA0, this part trades 256 KB flash capacity for lower unit cost while retaining identical security, connectivity, and timing performance; versus R7FA6M5BH3CFB#AA0, it avoids AI overhead and associated power/thermal complexity for deterministic real-time control tasks.

Availability

R7FA6M4AE3CFB#AA0 is available at Aetrix Electronics and suitable for industrial gateways, secure edge nodes, and smart building controllers requiring stable component supply across extended temperature and long product lifecycles.

Supply support for R7FA6M4AE3CFB#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 Corporation is a global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.

The RA6M4 group targets high-performance, secure, and connected microcontrollers for industrial edge computing, emphasizing TrustZone-based security, rich connectivity (Ethernet/CAN/USB), and scalable flash/SRAM for complex firmware stacks.

FAQ

What is the maximum operating frequency and core architecture of the R7FA6M4AE3CFB#AA0?

The R7FA6M4AE3CFB#AA0 features an Arm Cortex-M33 core operating at up to 200 MHz, implementing the Armv8-M architecture with TrustZone security extension, PMSAv8 memory protection, and dual Systick timers for secure and non-secure execution contexts. This enables deterministic real-time performance with hardware-enforced isolation for critical firmware components in the R7FA6M4AE3CFB#AA0.

Does the R7FA6M4AE3CFB#AA0 include integrated Ethernet PHY functionality?

No, the R7FA6M4AE3CFB#AA0 integrates only the Ethernet MAC (ETHERC) and DMA controller (EDMAC); it requires an external PHY IC (e.g., LAN8742A or DP83848) connected via RMII interface. The R7FA6M4AE3CFB#AA0 provides ETH_MDC, ETH_MDIO, ETH_TXD0–1, ETH_RXD0–1, and ETH_REF_CLK signals but no internal analog PHY circuitry.

How does the Secure Crypto Engine (SCE9) in the R7FA6M4AE3CFB#AA0 accelerate cryptographic operations?

The SCE9 in the R7FA6M4AE3CFB#AA0 provides hardware acceleration for AES-128/256 encryption/decryption, RSA-2048/4096 signature generation/verification, ECC key exchange, and SHA224/SHA256 hash computation. It operates independently of the main CPU, reducing latency and power consumption for secure boot, firmware authentication, and TLS handshake operations in the R7FA6M4AE3CFB#AA0.

What package type and pin count does the R7FA6M4AE3CFB#AA0 use?

The R7FA6M4AE3CFB#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, including 21 5-V-tolerant inputs, and supports -40°C to +105°C industrial temperature operation - confirmed by Renesas' official part numbering scheme and datasheet Table 1.14.

Can the R7FA6M4AE3CFB#AA0 support simultaneous USB host and device operation?

No, the USB 2.0 Full-Speed module (USBFS) in the R7FA6M4AE3CFB#AA0 supports either host mode or device mode - not both simultaneously. Mode selection is configured at runtime via USB register settings; switching requires reinitialization. The R7FA6M4AE3CFB#AA0 does not implement OTG negotiation logic or dual-role capability.