Renesas R7FA6M5BH3CFB#BA0

Overview

R7FA6M5BH3CFB#BA0 from Renesas is a high-performance 32-bit Arm Cortex-M33 microcontroller operating at up to 200 MHz, featuring 2 MB dual-bank code flash with background/swap operation, 8 KB data flash, and 512 KB SRAM with parity/ECC. It integrates Ethernet MAC, USB 2.0 High-Speed, dual CAN FD, SDHI, QSPI/OSPI, and Secure Crypto Engine (SCE9) with TrustZone for secure IoT gateway and industrial edge controller applications.

For engineers reviewing the R7FA6M5BH3CFB#BA0 datasheet, R7FA6M5BH3CFB#BA0 pinout, R7FA6M5BH3CFB#BA0 application, or R7FA6M5BH3CFB#BA0 equivalent, key selection considerations include its -40°C to +105°C temperature rating, 144-pin LQFP package, dual CAN FD support, integrated Ethernet MAC with RMII interface, and hardware-accelerated AES/RSA/ECC cryptography.

Technical Context

The R7FA6M5BH3CFB#BA0 implements Armv8-M with TrustZone security extension, supporting secure/non-secure execution states via separate MPU regions (8 per state) and dedicated SysTick timers. Its memory subsystem includes dual-bank flash enabling live firmware updates without interruption and ECC-protected SRAM for functional safety compliance.

Connectivity is centered on deterministic real-time interfaces: two CAN FD controllers (16 TX/RX buffers each), Ethernet MAC with DMA coupling to EDMAC, USBHS host/device operation, and QSPI/OSPI for external XIP-capable memory. The SCE9 crypto engine offloads AES-128/256, RSA-2048/3072, ECC-P256/P384, and SHA256 operations while enforcing tamper detection and lifecycle management.

Key Specifications

Pinout & Package

144-pin LQFP (PLQP0144KA-B), 20 mm × 20 mm, 0.5 mm pitch, -40°C to +105°C operating range. Pin count includes 109 I/O pins, 1 input-only pin, 110 pull-up resistors, 109 N-ch open-drain outputs, and 21 5-V tolerant inputs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA6M5BH3CFB#BA0, the LQFP-176 variant offers higher I/O count and external bus access at the cost of PCB area, while the BGA-144 alternative trades package manufacturability and thermal performance for identical functionality at lower ambient temperature tolerance.

Availability

R7FA6M5BH3CFB#BA0 is available at Aetrix Electronics and suitable for industrial edge controllers, secure IoT gateways, and automotive body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R7FA6M5BH3CFB#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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and enterprise applications.

The RA6M5 Group, including R7FA6M5BH3CFB#BA0, was designed for secure, real-time edge computing - integrating Arm TrustZone, hardware crypto, and rich connectivity to accelerate development of certified industrial and IoT endpoints.

FAQ

What is the maximum operating frequency and core architecture of the R7FA6M5BH3CFB#BA0?

The R7FA6M5BH3CFB#BA0 features an Arm Cortex-M33 core operating at up to 200 MHz, implementing the Armv8-M architecture with security extensions. It includes TrustZone for hardware-enforced secure/non-secure worlds, dual SysTick timers, and PMSAv8-based Memory Protection Unit with eight regions per security state - all confirmed in the R01DS0366EJ0150 datasheet Rev.1.50.

Does the R7FA6M5BH3CFB#BA0 support dual CAN FD, and what are the buffer configurations?

Yes, the R7FA6M5BH3CFB#BA0 integrates two independent CAN FD controllers compliant with ISO 11898-1, each providing 16 dedicated transmit buffers and 16 receive buffers. This enables concurrent high-bandwidth communication on separate CAN FD networks - essential for automotive body control and industrial multi-bus systems - as specified in Section 1.8 of the R01DS0366EJ0150 datasheet.

What package type and pin count does the R7FA6M5BH3CFB#BA0 use?

The R7FA6M5BH3CFB#BA0 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, 21 of which are 5-V tolerant, and supports -40°C to +105°C operation - matching the "FB" package code in Renesas' part numbering scheme (Figure 1.2, R01DS0366EJ0150).

How does the Secure Crypto Engine (SCE9) in the R7FA6M5BH3CFB#BA0 accelerate cryptographic operations?

The SCE9 in R7FA6M5BH3CFB#BA0 accelerates AES-128/256 encryption/decryption, RSA-2048/3072 signing/verification, ECC-P256/P384 operations, and SHA256 hashing - reducing AES-256 latency to under 10 µs per block. It includes tamper detection circuitry, secure key storage, and integrates with Arm TrustZone to isolate crypto operations from non-secure software, as documented in Section 1.11 of R01DS0366EJ0150.

Is the R7FA6M5BH3CFB#BA0 pin-compatible with other RA6M5 group members?

No, the R7FA6M5BH3CFB#BA0 is not pin-compatible with other RA6M5 variants due to differing package types: it uses a 144-pin LQFP (FB), whereas alternatives like R7FA6M5BH3CFC#AA0 use 176-pin LQFP (FC) and R7FA6M5BH2CBM#AA0 use 144-pin BGA (BM). Pin counts, I/O allocations, and power/ground pin distributions differ across packages - verified in Table 1.13 and Section 1.12 of R01DS0366EJ0150.