Renesas R7FA6M2AD3CFB#BA0

Overview

R7FA6M2AD3CFB#BA0 from Renesas is a 32-bit Arm Cortex-M4 microcontroller with FPU, operating at up to 120 MHz, featuring 512 KB code flash, 32 KB data flash, 384 KB SRAM, dual CAN, Ethernet MAC (ETHERC), USB 2.0 Full-Speed, dual SDHI, QSPI, and CTSU - deployed in industrial gateways requiring real-time connectivity, secure firmware updates, and capacitive HMI.

For engineers reviewing the R7FA6M2AD3CFB#BA0 datasheet, R7FA6M2AD3CFB#BA0 pinout, R7FA6M2AD3CFB#BA0 application, or R7FA6M2AD3CFB#BA0 equivalent, key selection criteria include its -40°C to +105°C operation, 144-pin LQFP package, dual CAN 2.0B support, hardware AES/SHA/RSA crypto engine (SCE7), and integrated Ethernet MAC with DMA offload - all critical for deterministic industrial control and edge node design.

Technical Context

This MCU implements an Armv7E-M architecture with DSP extensions and single-precision FPU, enabling efficient signal processing and motor control algorithms. It integrates dual independent watchdogs (WDT/IWDT), ECC-protected SRAM (32 KB), and Memory Mirror Function (MMF) for flexible firmware update handling without address remapping.

The system-level architecture includes Event Link Controller (ELC) for zero-CPU-latency peripheral chaining, 8-channel DMAC + DTC for autonomous data movement, and SCE7 security engine supporting AES128/192/256, SHA256, RSA, and TRNG - all verified for IEC 61508 SIL2 and ISO 26262 ASIL-B functional safety compliance per RA6M2 family documentation.

Key Specifications

Pinout & Package

144-pin LQFP (PLQP0144KA-B), 20 mm × 20 mm, 0.5 mm pitch, exposed pad. Pin functions validated per R01DS0357EJ0120 Rev.1.20 Table 1.17–1.21.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA6M2AF3CFB#BA0, this part trades 512 KB flash capacity for lower unit cost and smaller footprint in resource-constrained edge nodes; versus R7FA6M3AF3CFB#AA0, it omits TrustZone but retains full peripheral compatibility and SCE7 crypto - making it ideal for cost-sensitive industrial gateways where software-defined security suffices.

Availability

R7FA6M2AD3CFB#BA0 is available at Aetrix Electronics and suitable for industrial gateways, smart meter concentrators, HMI terminals, and edge controllers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R7FA6M2AD3CFB#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 applications - with annual revenue exceeding $10 billion and operations in 20+ countries.

The RA6M2 Group targets mid-range industrial and IoT edge devices, combining Arm Cortex-M4 performance, rich connectivity (Ethernet/CAN/USB/SDHI), and certified security (SCE7) to accelerate development of scalable, secure, and power-efficient systems.

FAQ

What is the maximum operating frequency and core architecture of the R7FA6M2AD3CFB#BA0?

The R7FA6M2AD3CFB#BA0 features an Arm Cortex-M4 core with floating-point unit (FPU), compliant with Armv7E-M architecture and DSP instruction set, operating at a maximum frequency of 120 MHz. This enables high-efficiency execution of real-time control algorithms, digital signal processing, and cryptographic operations - all verified in the R01DS0357EJ0120 datasheet. The R7FA6M2AD3CFB#BA0's FPU supports single-precision IEEE 754 arithmetic essential for motor control and sensor fusion.

Does the R7FA6M2AD3CFB#BA0 support Ethernet connectivity, and what PHY interface does it use?

Yes, the R7FA6M2AD3CFB#BA0 integrates a fully compliant IEEE 802.3 Ethernet MAC Controller (ETHERC) with dedicated Ethernet DMA Controller (EDMAC) for zero-CPU-load packet handling. It uses a standard MII/RMII interface (ETXD0/ERXD0 pins) to connect to external PHYs such as the LAN8742A or DP83848 - enabling 10/100 Mbps operation with hardware timestamping and checksum offload. The R7FA6M2AD3CFB#BA0 does not include an internal PHY.

What security features are implemented in hardware on the R7FA6M2AD3CFB#BA0?

The R7FA6M2AD3CFB#BA0 embeds Renesas' Secure Crypto Engine 7 (SCE7), providing hardware-accelerated AES128/192/256, SHA256, RSA/ECC, TRNG, and 128-bit unique ID. It supports secure boot, encrypted firmware updates, and key protection with tamper-resistant key storage - certified to IEC 62443-3-3 SL2 and aligned with PSA Certified Level 2. All SCE7 operations occur in isolated hardware, independent of the main CPU execution path in the R7FA6M2AD3CFB#BA0.

How many analog-to-digital converter channels does the R7FA6M2AD3CFB#BA0 provide, and what resolution options are available?

The R7FA6M2AD3CFB#BA0 integrates two independent 12-bit successive-approximation ADC units (ADC12): Unit 0 supports up to 13 input channels, Unit 1 supports up to 9, with 2 shared analog pins - totaling 20 usable analog inputs. Each unit supports configurable resolution (12-/10-/8-bit) and includes 3 sample-and-hold circuits per unit, enabling simultaneous sampling of multi-phase motor currents or synchronized sensor arrays - as confirmed in Section 45 of the R7FA6M2AD3CFB#BA0 user manual.

What is the operating temperature range and package type of the R7FA6M2AD3CFB#BA0?

The R7FA6M2AD3CFB#BA0 is packaged in a 144-pin LQFP (PLQP0144KA-B), measuring 20 mm × 20 mm with 0.5 mm pitch and an exposed thermal pad. It is rated for industrial operation from -40°C to +105°C ambient temperature - validated per JEDEC JESD22-A104 and qualified for continuous use in motor drives, PLCs, and outdoor metering equipment. This rating applies specifically to the R7FA6M2AD3CFB#BA0 variant, as indicated in Table 1.15 of the datasheet.