Renesas R7FA6M5ZH3CFB#BA0

Overview

R7FA6M5ZH3CFB#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 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, advanced analog (dual 12-bit ADC/DAC, temperature sensor), and hardware security (SCE9 + Arm TrustZone). It targets industrial gateways requiring secure, real-time connectivity and deterministic control.

For engineers reviewing the R7FA6M5ZH3CFB#BA0 datasheet, R7FA6M5ZH3CFB#BA0 pinout, R7FA6M5ZH3CFB#BA0 application, or R7FA6M5ZH3CFB#BA0 equivalent, key selection considerations include its 144-pin LQFP package, -40°C to +105°C extended temperature rating, dual-bank flash for safe firmware updates, integrated Ethernet PHY interface support, and SCE9 cryptographic acceleration for TLS/IPsec offload in edge node designs.

Technical Context

The R7FA6M5ZH3CFB#BA0 implements Armv8-M architecture with TrustZone isolation, enabling secure boot, encrypted firmware storage, and tamper-resistant key management. Its dual-bank flash supports atomic firmware updates without runtime interruption, while the 8-channel DMAC and Event Link Controller (ELC) enable zero-CPU-latency peripheral chaining for time-critical I/O handling.

It features two independent 12-bit ADC units (up to 12+10 channels, 5 Msps interleaved), dual 12-bit DACs, and a dedicated Capacitive Touch Sensing Unit (CTSU) with 20-channel support - all operating under TrustZone-protected memory regions. The integrated Ethernet MAC (ETHERC) connects directly to external PHYs via RMII, and USBFS operates in host/device mode with internal transceiver and 10-pipe endpoint support.

Key Specifications

Pinout & Package

Package: 144-pin LQFP (PLQP0144KA-B), 20 mm × 20 mm, 0.5 mm pitch, RoHS-compliant Sn finish. Pin count includes 109 general-purpose I/Os with 5-V tolerance on 21 pins, N-ch open-drain capability, and configurable pull-up resistors.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA6M4AF3CFB, R7FA6M5ZH3CFB#BA0 adds OSPI for faster external memory access and one extra GPIO; versus STM32H743VI, it offers native Ethernet + SCE9 with lower system-level design risk and smaller footprint for secure edge networking.

Availability

R7FA6M5ZH3CFB#BA0 is available at Aetrix Electronics and suitable for industrial gateways, secure edge nodes, programmable logic controllers, and HMI controllers requiring stable component supply across long-lifecycle deployments.

Supply support for R7FA6M5ZH3CFB#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power solutions for industrial, automotive, and enterprise applications.

The RA6M4 group - including R7FA6M5ZH3CFB#BA0 - was designed for secure, real-time edge computing with integrated connectivity (Ethernet/USB/CAN), hardware cryptography, and functional safety readiness (IEC 61508 SIL2 support).

FAQ

What is the maximum operating frequency and core architecture of the R7FA6M5ZH3CFB#BA0?

The R7FA6M5ZH3CFB#BA0 features an Arm Cortex-M33 core operating at up to 200 MHz, implementing the Armv8-M architecture with TrustZone security extensions. It includes dual Systick timers (secure and non-secure), CoreSight ETM-M33 tracing, and PMSAv8 memory protection with eight regions each for secure and non-secure execution spaces - all confirmed in the R01DS0365EJ0160 datasheet Rev.1.60.

Does the R7FA6M5ZH3CFB#BA0 support Ethernet connectivity, and what interface does it use?

Yes, the R7FA6M5ZH3CFB#BA0 integrates an IEEE 802.3-compliant Ethernet MAC (ETHERC) supporting 10/100 Mbps via RMII interface. It requires an external PHY but includes full DMA integration (EDMAC) for zero-copy packet processing. The RMII signals - ETH_RMII_RXD[1:0], TXD[1:0], CRS_DV, and REF_CLK - are assigned to dedicated pins in the 144-pin LQFP package per Table 1.16 of the datasheet.

What security features are implemented in hardware on the R7FA6M5ZH3CFB#BA0?

The R7FA6M5ZH3CFB#BA0 includes Renesas' Secure Crypto Engine 9 (SCE9) with hardware acceleration for AES-128/256, RSA-2048, ECC-P256, SHA224/256, and GHASH. It also provides Arm TrustZone isolation, tamper detection pins, secure pin multiplexing, device lifecycle management, and a 128-bit unique ID - all documented in Section 1.12 and Table 1.15 of the R01DS0365EJ0160 datasheet.

What is the flash memory configuration of the R7FA6M5ZH3CFB#BA0, and how does dual-bank operation benefit firmware updates?

The R7FA6M5ZH3CFB#BA0 contains 1 MB of code flash organized in dual banks, enabling background programming and SWAP operations. This allows new firmware to be written to the inactive bank while the active bank continues execution, then atomically switched at runtime - eliminating downtime during field updates. The 8 KB data flash supports 100,000 program/erase cycles for parameter storage.

Which package and temperature grade does the R7FA6M5ZH3CFB#BA0 use, and how many GPIOs are available?

The R7FA6M5ZH3CFB#BA0 uses a 144-pin LQFP package (PLQP0144KA-B, 20 mm × 20 mm, 0.5 mm pitch) rated for -40°C to +105°C operation. It provides 109 general-purpose I/O pins, 1 dedicated input pin, 110 pull-up resistors, 109 N-ch open-drain outputs, and 21 pins with 5-V tolerance - as specified in Table 1.13 of the R01DS0365EJ0160 datasheet.