Renesas R7FA6M5BF3CFC#BA0

Overview

R7FA6M5BF3CFC from Renesas is a high-performance 32-bit Arm Cortex-M33 microcontroller operating at up to 200 MHz, featuring 1 MB code flash, 8 KB data flash, and 512 KB SRAM with ECC/parity support. It integrates dual CAN FD controllers, Ethernet MAC, USB 2.0 High-Speed/Full-Speed, QSPI/OSPI, SDHI, and a Secure Crypto Engine (AES/RSA/ECC/SHA256) with Arm TrustZone for industrial gateway and secure edge node applications.

For engineers reviewing the R7FA6M5BF3CFC datasheet, R7FA6M5BF3CFC pinout, R7FA6M5BF3CFC application, or R7FA6M5BF3CFC equivalent, key selection criteria include its -40°C to +105°C LQFP-176 package, dual-bank flash with SWAP operation, integrated CTSU for touch HMI, and hardware-accelerated cryptography supporting secure boot and firmware updates.

Technical Context

The R7FA6M5BF3CFC implements Armv8-M architecture with TrustZone-enforced secure/non-secure worlds, using separate SysTick timers and MPUs (8 regions each) for isolation. Its memory subsystem includes dual-bank flash enabling background programming and atomic SWAP, plus 512 KB SRAM partitioned into 448 KB parity-protected and 64 KB ECC-protected sections.

Connectivity is centered on deterministic real-time I/O: two CAN FD channels (16 TX/RX buffers each), RMII Ethernet MAC with integrated EDMAC, USBHS/USBFS with internal transceivers and 10-pipe FIFOs, and QSPI/OSPI controllers supporting external OctaFlash and serial NOR. Analog integration includes dual 12-bit ADCs (5 Msps interleaved), dual DACs, and temperature sensor interfaced to ADC.

Key Specifications

Pinout & Package

176-pin LQFP (PLQP0176KB-C), 24 mm × 24 mm, 0.5 mm pitch, -40°C to +105°C operating range. Package includes 132 general-purpose I/O pins, 17 5-V-tolerant inputs, dedicated VBATT backup supply, and full JTAG/SWD debug interface (TMS/TCK/TDO/TDI/SWO/SWDIO).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance secure MCU applications.

Compared with R7FA6M5BH3CFC and R7FA6M5BG3CFC, the R7FA6M5BF3CFC provides the smallest flash footprint in the RA6M5 family's 176-pin LQFP-105°C variant-ideal for cost-sensitive industrial controls where firmware size is tightly constrained and cryptographic acceleration remains fully available.

Availability

R7FA6M5BF3CFC is available at Aetrix Electronics and suitable for industrial gateways, secure edge nodes, HMI panels, and motor control gateways requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for R7FA6M5BF3CFC 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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RA6M5 Group targets high-end industrial and secure IoT applications, combining Arm Cortex-M33 performance, hardware security, and rich connectivity to replace FPGA+MCU combinations in edge intelligence systems.

FAQ

What is the maximum operating frequency of the R7FA6M5BF3CFC?

The R7FA6M5BF3CFC operates at a maximum frequency of 200 MHz using its Arm Cortex-M33 core. This clock speed is achieved via the on-chip PLL driven by the main oscillator (8–24 MHz) or high-speed on-chip oscillator (HOCO). The R7FA6M5BF3CFC maintains full peripheral functionality-including Ethernet MAC, USB HS, and CAN FD-at this frequency, with timing validated across the full -40°C to +105°C temperature range.

Does the R7FA6M5BF3CFC support TrustZone-based secure boot?

Yes, the R7FA6M5BF3CFC supports TrustZone-based secure boot through its integrated Arm TrustZone implementation and Secure Crypto Engine (SCE9). During reset, the device verifies the digital signature of the first-stage bootloader stored in secure flash before executing it. The R7FA6M5BF3CFC enforces strict isolation between secure and non-secure worlds, preventing unauthorized access to keys or firmware during boot and runtime.

What package type and pin count does the R7FA6M5BF3CFC use?

The R7FA6M5BF3CFC uses a 176-pin LQFP package (PLQP0176KB-C), measuring 24 mm × 24 mm with 0.5 mm pitch. It provides 132 general-purpose I/O pins, 17 of which are 5-V tolerant, along with dedicated power, clock, reset, debug, Ethernet, USB, and CAN FD interface pins. This package is rated for operation from -40°C to +105°C.

How much SRAM and flash memory does the R7FA6M5BF3CFC include?

The R7FA6M5BF3CFC includes 512 KB of on-chip SRAM-partitioned into 448 KB with parity protection and 64 KB with ECC-and 1 MB of dual-bank code flash memory with background programming and atomic SWAP capability. It also integrates 8 KB of data flash memory rated for 100,000 program/erase cycles, optimized for parameter storage and logging.

Which communication interfaces are supported by the R7FA6M5BF3CFC?

The R7FA6M5BF3CFC supports dual CAN FD (ISO 11898-1), Ethernet MAC (RMII), USB 2.0 High-Speed and Full-Speed (with internal transceivers), QSPI and OSPI for external memory, SDHI for SD/microSD cards, 10× SCI (UART/SPI/I²C/Manchester), 3× I²C, 2× SPI, SSIE for audio, CEC, and serial sound interfaces. All interfaces operate concurrently under the 200 MHz CPU clock with DMA and ELC support.