Renesas R7FA6M4AE3CFB#BA0

Overview

R7FA6M4AE3CFB#BA0 from Renesas is a high-performance 32-bit Arm Cortex-M33 microcontroller operating at up to 200 MHz, featuring 768 KB code flash, 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, and Secure Crypto Engine (SCE9) with TrustZone for secure IoT edge gateways and industrial HMI.

For engineers reviewing the R7FA6M4AE3CFB#BA0 datasheet, R7FA6M4AE3CFB#BA0 pinout, R7FA6M4AE3CFB#BA0 application, or R7FA6M4AE3CFB#BA0 equivalent, key selection criteria include its -40°C to +105°C operation, 144-pin LQFP package, dual-bank flash support, tamper-resistant security architecture, and integrated analog peripherals including dual 12-bit ADCs and DACs.

Technical Context

The R7FA6M4AE3CFB#BA0 implements Armv8-M with TrustZone, enabling hardware-isolated secure and non-secure execution environments. Its memory subsystem includes dual-bank flash for background programming and SWAP operations, plus 256 KB SRAM with configurable parity or ECC protection.

Connectivity is centered on deterministic real-time interfaces: two CAN 2.0B controllers, Ethernet MAC with RMII support, USBFS host/device capability, and dual high-speed serial interfaces (QSPI and OSPI) for external memory expansion - all coordinated via Event Link Controller (ELC) and 8-channel DMAC for zero-CPU-intervention data movement.

Key Specifications

Pinout & Package

144-pin LQFP (PLQP0144KA-B), 20 mm × 20 mm, 0.5 mm pitch, with exposed thermal pad. Pin count: 109 general-purpose I/O, 1 dedicated input, 110 pull-up resistors, 109 N-ch open-drain outputs, 21 5-V-tolerant pins.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with R7FA6M4AF3CFB#BA0, the R7FA6M4AE3CFB#BA0 trades 232 KB flash for lower unit cost while retaining identical security, analog, and connectivity features - making it optimal for cost-sensitive industrial gateways. Against R7FA6M5BH3CFB#AA0, it avoids AI overhead and maintains OSPI support essential for external XIP code execution.

Availability

R7FA6M4AE3CFB#BA0 is available at Aetrix Electronics and suitable for industrial gateways, smart energy meters, building automation HMIs, and medical infusion pump controllers requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for R7FA6M4AE3CFB#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 global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.

The RA6M4 group - including R7FA6M4AE3CFB#BA0 - was designed specifically for secure, real-time industrial edge devices requiring high integration, functional safety readiness, and robust cybersecurity without external co-processors.

FAQ

What is the maximum operating frequency of the R7FA6M4AE3CFB#BA0?

The R7FA6M4AE3CFB#BA0 operates at a maximum frequency of 200 MHz using the Arm Cortex-M33 core. This speed is achieved with the PLL clock source and requires proper decoupling and thermal management. The R7FA6M4AE3CFB#BA0 maintains full peripheral functionality-including Ethernet, USBFS, and dual CAN-at this frequency, as verified in Renesas' R01DS0365EJ0160 datasheet Rev.1.60.

Does the R7FA6M4AE3CFB#BA0 support secure boot and cryptographic key storage?

Yes, the R7FA6M4AE3CFB#BA0 supports secure boot via TrustZone-enforced ROM bootloader and hardware-secured key storage within the Secure Crypto Engine 9 (SCE9). Keys are protected by tamper detection circuitry and power analysis resistance. The R7FA6M4AE3CFB#BA0 implements device lifecycle management to enforce secure provisioning and key revocation - all documented in Section 1.12 of the official datasheet.

What package type and pin count does the R7FA6M4AE3CFB#BA0 use?

The R7FA6M4AE3CFB#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. This package is pin-compatible with other RA6M4 variants like R7FA6M4AF3CFB#BA0, enabling scalable design reuse across flash density options.

Can the R7FA6M4AE3CFB#BA0 interface directly with an Ethernet PHY?

Yes, the R7FA6M4AE3CFB#BA0 includes a fully compliant IEEE 802.3 Ethernet MAC with RMII interface, allowing direct connection to standard 10/100 Mbps PHY ICs (e.g., LAN8720A, DP83848). The R7FA6M4AE3CFB#BA0 provides MDC/MDIO, TXD/RXD, TXEN, CRS_DV, and REF_CLK signals - no external glue logic is required for basic Ethernet operation.

What analog peripherals are integrated into the R7FA6M4AE3CFB#BA0?

The R7FA6M4AE3CFB#BA0 integrates dual 12-bit successive approximation ADCs (ADC12) with up to 19 total input channels and 5 Msps interleaved sampling, two 12-bit DACs (DAC12), an on-die temperature sensor (TSN), and a 20-channel Capacitive Touch Sensing Unit (CTSU). These analog resources are accessible across multiple I/O pins and supported by DMA and ELC for autonomous operation - confirmed in Tables 1.9 and 1.10 of the R7FA6M4AE3CFB#BA0 datasheet.