Renesas R7FA6M4AF3CFP#AA0

Overview

R7FA6M4AF3CFP#AA0 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, 256 KB SRAM with parity/ECC, 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#AA0 datasheet, R7FA6M4AF3CFP#AA0 pinout, R7FA6M4AF3CFP#AA0 application, or R7FA6M4AF3CFP#AA0 equivalent, this page delivers verified specifications, package mapping to 100-pin LQFP, functional pin roles, security architecture details, and real-world use cases in industrial gateways, secure HMI controllers, and connected medical devices.

Technical Context

The R7FA6M4AF3CFP#AA0 implements Armv8-M with TrustZone, enabling hardware-isolated secure and non-secure execution environments. Its memory subsystem supports concurrent read-while-write flash operations via dual-bank architecture and includes dedicated parity/ECC protection across 256 KB SRAM.

Connectivity integrates Ethernet MAC (RMII), USBFS with internal transceiver, dual CAN 2.0B controllers requiring external transceivers, and high-speed serial interfaces including 10× SCI, 2× I²C, 2× SPI, QSPI, OSPI, and SDHI - all managed by Event Link Controller (ELC) for CPU-free peripheral coordination.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (PLQP0100KB-B), 14 mm × 14 mm, 0.5 mm pitch, 75 general-purpose I/O pins, 14× 5-V tolerant inputs, 76 pull-up resistors, 75 N-ch open-drain outputs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA6M4AF2CFP#AA0, the R7FA6M4AF3CFP#AA0 adds extended temperature operation essential for outdoor or industrial enclosures; compared with R7FA6M4AE3CFP#AA0, it provides 232 KB additional flash for larger RTOS+TLS stacks or dual-application images.

Availability

R7FA6M4AF3CFP#AA0 is available at Aetrix Electronics and suitable for industrial gateways, secure medical HMIs, and smart building controllers requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R7FA6M4AF3CFP#AA0 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 RA6M4 group targets secure, high-performance edge computing applications, combining Arm TrustZone, hardware crypto acceleration, and rich connectivity to simplify development of certified industrial and medical devices.

FAQ

What is the maximum operating frequency of the R7FA6M4AF3CFP#AA0?

The R7FA6M4AF3CFP#AA0 operates at a maximum core frequency of 200 MHz using the Arm Cortex-M33 processor. This frequency is achieved via the on-chip PLL driven by the main clock oscillator (MOSC) or high-speed on-chip oscillator (HOCO). The R7FA6M4AF3CFP#AA0 maintains full peripheral functionality-including Ethernet MAC, USBFS, and dual CAN-at this speed, as validated in Renesas' R01DS0365EJ0160 datasheet Rev.1.60.

Does the R7FA6M4AF3CFP#AA0 include an integrated USB transceiver?

Yes, the R7FA6M4AF3CFP#AA0 integrates a full-speed USB 2.0 transceiver supporting both host and device modes. Pins USB_DP and USB_DM connect directly to the USB connector without external PHY components. The module supports all USB transfer types (control, bulk, interrupt, isochronous) and includes 10 configurable endpoints with dedicated buffer memory, as specified in Section 1.8 of the R7FA6M4AF3CFP#AA0 datasheet.

What package type does the R7FA6M4AF3CFP#AA0 use?

The R7FA6M4AF3CFP#AA0 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, and supports industrial temperature operation from −40°C to +105°C. This package is pin-compatible with other RA6M4 variants in the same footprint, such as R7FA6M4AE3CFP#AA0 and R7FA6M4AF2CFP#AA0.

How does the Secure Crypto Engine (SCE9) in the R7FA6M4AF3CFP#AA0 accelerate cryptographic operations?

The SCE9 in the R7FA6M4AF3CFP#AA0 offloads symmetric (AES-128/256), asymmetric (RSA-2048, ECC-P256), and hash (SHA224/SHA256/GHASH) operations from the CPU. Benchmarks show AES-128 encryption completes in ~100 cycles versus >10,000 cycles in software. The R7FA6M4AF3CFP#AA0 also includes a 128-bit unique ID and tamper detection circuitry, enabling secure key injection and lifecycle management per IEC 62443 requirements.

Can the R7FA6M4AF3CFP#AA0 support Ethernet connectivity without external PHY components?

The R7FA6M4AF3CFP#AA0 includes an IEEE 802.3-compliant Ethernet MAC (ETHERC) but requires an external PHY for physical layer signaling. It supports RMII interface with dedicated pins (ETH_RMII_TXD0/1, RXD0/1, REF_CLK) and integrates Ethernet DMA (EDMAC) for zero-copy packet transfers. No external PHY is needed for USB or CAN - those interfaces use internal transceivers - but Ethernet always requires a companion PHY like the LAN8742A or DP83848.