Renesas R7FA6M4AD3CFM#AA5

Overview

R7FA6M4AD3CFM#AA5 from Renesas is a high-performance 32-bit Arm Cortex-M33 microcontroller operating at up to 200 MHz, featuring 512 KB dual-bank code flash, 8 KB data flash, 256 KB SRAM with ECC/parity, integrated Ethernet MAC, USB 2.0 Full-Speed, CAN ×2, QSPI/OSPI, and Secure Crypto Engine (SCE9) with TrustZone support - deployed in industrial gateways requiring secure connectivity and real-time control.

For engineers reviewing the R7FA6M4AD3CFM#AA5 datasheet, R7FA6M4AD3CFM#AA5 pinout, R7FA6M4AD3CFM#AA5 application, or R7FA6M4AD3CFM#AA5 equivalent, key selection criteria include flash size (512 KB), operating temperature (−40°C to +105°C), LQFP-64 package with 41 I/O pins, 5-V-tolerant inputs, and hardware security features including AES/RSA/ECC acceleration and tamper detection.

Technical Context

The R7FA6M4AD3CFM#AA5 implements Armv8-M architecture with TrustZone-enforced secure/non-secure execution environments, supporting dual-bank flash for seamless firmware updates without system interruption. Its memory subsystem includes 256 KB SRAM with configurable ECC or parity protection and 8 KB data flash rated for 100,000 P/E cycles.

Connectivity is centered on deterministic real-time interfaces: two CAN 2.0B controllers with 32 mailboxes, Ethernet MAC compliant with IEEE 802.3, USBFS host/device operation with internal transceiver, and dual high-speed serial interfaces (SCI ×10, SPI ×2, IIC ×2) alongside QSPI and OSPI for external memory expansion.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (PLQP0064KB-C), 10 mm × 10 mm, 0.5 mm pitch, lead-free (Sn only), RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA6M4AD3CFM#AA5, the R7FA6M4AF3CFM#AA5 offers double flash capacity for larger firmware and safer over-the-air updates, while the R7FA6M5BH3CFM#AA0 extends capability into AI-accelerated edge analytics - both retain identical LQFP-64 footprint and peripheral compatibility for drop-in migration where flash or compute headroom is constrained.

Availability

R7FA6M4AD3CFM#AA5 is available at Aetrix Electronics and suitable for industrial gateways, secure edge nodes, and building automation controllers requiring stable component supply, long lifecycle assurance, and automotive-grade reliability under extended temperature conditions.

Supply support for R7FA6M4AD3CFM#AA5 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, with over 40 years of MCU innovation and IP leadership.

The RA6M4 group - including R7FA6M4AD3CFM#AA5 - was designed specifically for secure, connected industrial edge devices requiring real-time performance, hardware-enforced trust, and scalable connectivity across CAN, Ethernet, USB, and wireless co-processors.

FAQ

What is the maximum operating frequency of the R7FA6M4AD3CFM#AA5?

The R7FA6M4AD3CFM#AA5 operates at a maximum frequency of 200 MHz using its Arm Cortex-M33 core. This speed is achievable with the main clock oscillator (MOSC) or PLL-driven system clock, and is fully supported across its −40°C to +105°C operating temperature range without derating. The R7FA6M4AD3CFM#AA5 maintains timing compliance under worst-case voltage (2.7 V) and temperature conditions per its datasheet specifications.

Does the R7FA6M4AD3CFM#AA5 support TrustZone and secure boot?

Yes, the R7FA6M4AD3CFM#AA5 integrates Arm TrustZone technology and a Secure Crypto Engine (SCE9) to enable hardware-isolated secure boot. It supports secure firmware authentication, encrypted key storage, and tamper detection - all enforced at silicon level. The R7FA6M4AD3CFM#AA5 allows developers to define secure/non-secure memory regions in flash, SRAM, and peripherals, forming a foundational secure element for industrial and medical applications.

What package type and pin count does the R7FA6M4AD3CFM#AA5 use?

The R7FA6M4AD3CFM#AA5 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, 9 of which are 5-V tolerant, along with dedicated power, clock, reset, debug, and peripheral interface pins. This package is pin-compatible with other RA6M4 variants in the same LQFP-64 footprint, enabling design reuse across flash-size variants.

Can the R7FA6M4AD3CFM#AA5 execute code directly from external QSPI flash?

Yes, the R7FA6M4AD3CFM#AA5 supports Execute-in-Place (XIP) from external QSPI flash via its Quad Serial Peripheral Interface. The QSPI controller includes prefetch buffers and cache-like behavior to minimize wait states, enabling efficient code execution without loading into internal SRAM. This capability is confirmed in the R7FA6M4AD3CFM#AA5 datasheet section on memory mapping and QSPI area (EQBIU) configuration.

What are the key differences between R7FA6M4AD3CFM#AA5 and R7FA6M4AF3CFM#AA5?

The primary difference is code flash capacity: R7FA6M4AD3CFM#AA5 has 512 KB, while R7FA6M4AF3CFM#AA5 has 1 MB - both use identical LQFP-64 packaging, peripherals, security features, and temperature rating (−40°C to +105°C). The R7FA6M4AD3CFM#AA5 retains full dual-bank flash operation and SWAP functionality despite smaller capacity, making it suitable for cost-optimized or space-constrained designs where firmware fits within 512 KB.