Renesas R7FA6M4AF3CFP#BA0

Overview

R7FA6M4AF3CFP#BA0 from Renesas is a high-performance 32-bit Arm Cortex-M33 microcontroller operating at up to 200 MHz, featuring 1 MB 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 R7FA6M4AF3CFP#BA0 datasheet, R7FA6M4AF3CFP#BA0 pinout, R7FA6M4AF3CFP#BA0 application, or R7FA6M4AF3CFP#BA0 equivalent, this MCU supports deterministic real-time control in industrial gateways, secure connected HMI systems, and resource-constrained edge AI inference nodes requiring hardware-accelerated cryptography and deterministic low-latency peripheral response.

Technical Context

The R7FA6M4AF3CFP#BA0 implements Armv8-M architecture with TrustZone-enforced secure/non-secure execution environments, dual MPU instances (8 regions each), and two independent SysTick timers-one for secure, one for non-secure context. Its memory subsystem includes dual-bank flash enabling seamless firmware updates without runtime interruption.

Connectivity is orchestrated via dedicated hardware accelerators: ETHERC/EDMAC offloads Ethernet frame handling; USBFS integrates full-speed transceiver and 10-pipe endpoint controller; QSPI/OSPI controllers support XIP and high-bandwidth external memory mapping; and dual CAN modules comply with ISO 11898-1 with 32 configurable mailboxes per channel.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (PLQP0100KB-B), 14 mm × 14 mm, 0.5 mm pitch, exposed pad (thermal pad not electrically connected). Pin count: 75 general-purpose I/O, 1 dedicated input, 76 pull-up resistors, 75 N-ch open-drain outputs, 14 5-V-tolerant pins.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA6M4AF3CFP#BA0, the R7FA6M4AF3CBM#AA0 offers greater I/O density and external bus support but requires BGA assembly and lacks 5-V-tolerant pins; the R7FA6M4AE3CFP#BA0 reduces flash capacity by 25% while retaining identical security, analog, and connectivity features-ideal for validated firmware with fixed memory footprint.

Availability

R7FA6M4AF3CFP#BA0 is available at Aetrix Electronics and suitable for industrial gateways, secure HMI terminals, and smart energy meters requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability validation.

Supply support for R7FA6M4AF3CFP#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and enterprise applications.

The RA6M4 Group targets secure, high-performance edge computing with integrated TrustZone, SCE9, and rich connectivity-designed for industrial IoT, building automation, and medical edge devices demanding functional safety and cybersecurity coexistence.

FAQ

What is the maximum operating frequency of the R7FA6M4AF3CFP#BA0?

The R7FA6M4AF3CFP#BA0 operates at a maximum frequency of 200 MHz using its Arm Cortex-M33 core. This speed is achieved with PLL clock synthesis from internal oscillators (HOCO/MOCO) or external crystals (8–24 MHz). The core sustains this frequency across the full -40°C to +105°C operating range with appropriate voltage (2.7–3.6 V) and thermal management.

Does the R7FA6M4AF3CFP#BA0 include hardware cryptographic acceleration?

Yes, the R7FA6M4AF3CFP#BA0 integrates the Secure Crypto Engine 9 (SCE9), which provides hardware acceleration for AES (128/256), RSA (2048), ECC (P256), DSA, and SHA224/SHA256 hash generation. It also includes a 128-bit unique ID and tamper detection circuitry, all coordinated with Arm TrustZone for secure key management and lifecycle control.

What package type and pin count does the R7FA6M4AF3CFP#BA0 use?

The R7FA6M4AF3CFP#BA0 uses a 100-pin LQFP package (PLQP0100KB-B), measuring 14 mm × 14 mm with 0.5 mm pitch. It provides 75 general-purpose I/O pins, 14 of which are 5-V tolerant, along with dedicated power, clock, reset, debug, and peripheral interface pins as defined in the official Renesas pinout documentation.

Can the R7FA6M4AF3CFP#BA0 support Ethernet communication without an external PHY?

No, the R7FA6M4AF3CFP#BA0 includes only the Ethernet MAC (ETHERC) and DMA controller (EDMAC), not a physical layer transceiver. An external RMII-compliant PHY (e.g., LAN8742A) is required for 10/100 Mbps Ethernet connectivity. The MCU provides the ETXD0–3, ERXD0–3, REF_CLK, and CRS_DV signals necessary to interface with such a PHY.

Is the R7FA6M4AF3CFP#BA0 pin-compatible with other RA6M4 group members?

The R7FA6M4AF3CFP#BA0 shares the same 100-pin LQFP footprint and signal mapping with other RA6M4 variants in the FP package family (e.g., R7FA6M4AE3CFP#BA0, R7FA6M4AD3CFP#BA0), enabling direct substitution where flash size and feature set align. However, it is not pin-compatible with 144-pin LQFP (FB) or BGA (BM/BQ) variants due to differing pin counts and layouts.