Renesas R7FA6M4AE2CBM#BC0

Overview

R7FA6M4AE2CBM from Renesas is a high-performance 32-bit Arm Cortex-M33 microcontroller operating at up to 200 MHz, featuring 768 KB 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, and Secure Crypto Engine (SCE9) with TrustZone for secure IoT edge nodes and industrial gateways.

For engineers reviewing the R7FA6M4AE2CBM datasheet, R7FA6M4AE2CBM pinout, R7FA6M4AE2CBM application, or R7FA6M4AE2CBM equivalent, key selection criteria include its -40°C to +85°C temperature grade, 144-pin FBGA package (PLBG0144KB-A), dual-bank flash for safe firmware updates, integrated Ethernet PHY interface support, and hardware-accelerated AES/RSA/SHA256 crypto operations.

Technical Context

The R7FA6M4AE2CBM implements Armv8-M architecture with TrustZone security extension, enabling strict isolation between secure and non-secure execution environments. Its dual-bank flash supports seamless background programming and SWAP operations without CPU interruption, critical for OTA updates in field-deployed devices.

It features a full peripheral set including ETHERC/EDMAC for zero-CPU packet handling, two CAN 2.0B controllers with 32 configurable mailboxes, and SCE9 delivering hardware-accelerated symmetric (AES), asymmetric (RSA/ECC), and hash (SHA224/SHA256) cryptography - all coordinated under device lifecycle management and tamper detection.

Key Specifications

Pinout & Package

Package: 144-pin Fine-Pitch Ball Grid Array (FBGA), PLBG0144KB-A footprint (7 mm × 7 mm, 0.50 mm pitch), RoHS-compliant Sn (tin) terminal finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA6M4AF3CBM, the R7FA6M4AE2CBM trades 232 KB flash and 20°C thermal range for lower unit cost and identical peripheral integration - ideal for volume commercial gateways. Against R7FA6M5BH2CFP, it retains full Ethernet and CAN capability at the expense of AI acceleration, making it superior for deterministic networked control.

Availability

R7FA6M4AE2CBM is available at Aetrix Electronics and suitable for industrial gateways, secure edge nodes, and medical IoT hubs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R7FA6M4AE2CBM 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 targets secure, connected microcontrollers for industrial automation and edge computing, combining high-performance Cortex-M33 execution with hardware-enforced security and rich connectivity - precisely embodied by the R7FA6M4AE2CBM.

FAQ

What is the maximum operating frequency and core architecture of the R7FA6M4AE2CBM?

The R7FA6M4AE2CBM features an Arm Cortex-M33 core operating at a maximum frequency of 200 MHz. It implements the Armv8-M architecture with security extension (TrustZone), supporting both secure and non-secure execution states. The core includes a Memory Protection Unit (MPU) with eight regions for each state, SysTick timers for both worlds, and CoreSight ETM-M33 for trace debugging - all confirmed in the R01DS0365EJ0160 datasheet Rev.1.60.

Does the R7FA6M4AE2CBM support Ethernet connectivity, and what interface does it use?

Yes, the R7FA6M4AE2CBM integrates a single-channel Ethernet MAC (ETHERC) compliant with IEEE 802.3, paired with an Ethernet DMA Controller (EDMAC). It supports RMII physical layer interface with dedicated pins (ETH_RMII_TXD0/1, RXD0/1, CRS_DV, REF_CLK), enabling direct connection to external PHYs like the LAN8742A without requiring external glue logic or bridging ICs.

What security features are implemented in the R7FA6M4AE2CBM beyond Arm TrustZone?

Beyond Arm TrustZone, the R7FA6M4AE2CBM includes the Secure Crypto Engine 9 (SCE9) with hardware acceleration for AES, RSA, ECC, and SHA224/SHA256; 128-bit unique ID; tamper detection via dedicated pins; secure key injection; and device lifecycle management. These features are documented in Section 1.12 of the R01DS0365EJ0160 datasheet and enable certified secure boot, encrypted firmware updates, and runtime attestation for the R7FA6M4AE2CBM.

What is the flash memory configuration of the R7FA6M4AE2CBM, and how does dual-bank operation benefit firmware updates?

The R7FA6M4AE2CBM contains 768 KB of code flash memory organized in dual banks, plus 8 KB of data flash. Dual-bank operation allows background programming of one bank while executing from the other, and supports atomic SWAP operations to switch active banks instantly. This enables fail-safe over-the-air (OTA) updates without interrupting real-time operation - a key requirement verified for the R7FA6M4AE2CBM in industrial and medical applications.

Which package type and pin count does the R7FA6M4AE2CBM use, and what are its key mechanical dimensions?

The R7FA6M4AE2CBM uses a 144-pin Fine-Pitch Ball Grid Array (FBGA) package with part code BM, identified as PLBG0144KB-A. Its mechanical dimensions are 7 mm × 7 mm with 0.50 mm ball pitch. It features 109 general-purpose I/O pins, 21 of which are 5-V tolerant, and supports pull-up resistors on all I/Os - specifications confirmed in Table 1.13 and Figure 1.2 of the R01DS0365EJ0160 datasheet for the R7FA6M4AE2CBM.