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Renesas R7FA6M3AF3CFB#BA0
- Part No.:
- R7FA6M3AF3CFB#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
R7FA6M3AF3CFB#BA0.pdf
- Description:
- MCU RA6 ARM CM4 120MHZ 1M/640K Q
- Quantity:
- Payment:
- Shipping:
Inventory:2,476
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Product details
Overview
R7FA6M3AF3CFB#BA0 from Renesas Electronics is a high-performance 32-bit Arm Cortex-M4 microcontroller with FPU, designed for industrial HMI, Ethernet-connected edge devices, and secure IoT gateways. It operates at up to 120 MHz, integrates 2 MB code flash, 640 KB SRAM, dual CAN, IEEE 1588 PTP-capable Ethernet MAC, USB 2.0 HS/FS, and hardware-accelerated cryptography (AES-256, ECC, TRNG).
For engineers reviewing the R7FA6M3AF3CFB#BA0 datasheet, R7FA6M3AF3CFB#BA0 pinout, R7FA6M3AF3CFB#BA0 application, or R7FA6M3AF3CFB#BA0 equivalent, key selection criteria include its 144-pin LQFP package, -40°C to +105°C industrial temperature rating, integrated GLCDC + DRW for graphics rendering, dual SDHI for redundant storage, and SCE7 security engine supporting certified cryptographic operations.
Technical Context
The R7FA6M3AF3CFB#BA0 implements an Armv7E-M architecture with DSP extensions and single-precision FPU, enabling deterministic real-time control and signal processing. Its memory subsystem includes ECC-protected SRAM (first 32 KB), MMF for flexible firmware loading, and 64 KB data flash rated for 125,000 erase/write cycles.
Connectivity is centered on deterministic timing: ETHERC + EDMAC + EPTPC form a hardware-synchronized IEEE 1588 PTP stack, while dual CAN controllers support ISO 11898-1 with 32 configurable mailboxes. The SCE7 crypto engine offloads AES-256, SHA256, RSA, and TRNG operations without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4 with FPU, 120 MHz max - enables real-time motor control and audio processing with floating-point precision. |
| Memory | 2 MB code flash (0-wait @40 MHz), 640 KB SRAM (ECC on first 32 KB) - supports large embedded OS images and fault-tolerant data buffers. |
| Connectivity | Ethernet MAC + PTP (IEEE 1588 v2), dual CAN 2.0B, USB 2.0 HS/FS, dual SDHI - enables time-synchronized industrial networking and dual-storage redundancy. |
| Analog | ADC12 ×2 (12-bit, 22 channels), DAC12 ×2, ACMPHS ×6, PGA ×6 - supports sensor fusion, closed-loop analog control, and precision signal conditioning. |
| Graphics & HMI | GLCDC + 2D DRW + JPEG codec + CTSU - renders WVGA+ GUIs with hardware-accelerated drawing, image decode, and capacitive touch sensing. |
| Security | SCE7 with AES-128/192/256, ECC, SHA256, TRNG, 128-bit UID - provides NIST-compliant crypto acceleration and device identity for secure boot and OTA updates. |
| Package & Temp | 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch), -40°C to +105°C - suitable for industrial control panels and automotive-adjacent gateway applications. |
Pinout & Package
Package: 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch), RoHS-compliant, lead-free, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dedicated pins per power domain; decoupling required per Renesas layout guidelines for stable 2.7–3.6 V operation. |
| XTAL/EXTAL | Main clock oscillator input/output | Supports 8–24 MHz crystal; enables precise timing for Ethernet PTP and USB HS synchronization. |
| ETH_MDC/MDIO | Ethernet management interface | Connects to external PHY for IEEE 802.3 compliance; MDC clock derived from internal PLL for timing accuracy. |
| USB_VBUS/USB_DP/USB_DM | USB 2.0 High-Speed physical interface | On-chip transceiver with regulator; supports host/device mode and Battery Charging Spec 1.2 negotiation. |
| SD0_CLK/SD0_CMD/SD0_DATx | SD/MMC Host Interface 0 signals | 4-bit bus capable of SDXC support; DMA-driven transfers via SDHI0 for high-throughput storage access. |
| CTSU_RX0–CTSU_RX15 | Capacitive touch sensing inputs | 16-channel CTSU electrode interface; enables robust multi-touch panel control without external ICs. |
Key Features
| Feature | Design Value |
|---|---|
| Memory Mirror Function (MMF) | Enables firmware update in-place by mapping load address to link address - eliminates bootloader complexity and reduces field update risk. |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining (e.g., ADC conversion → DMA transfer → interrupt) - removes CPU polling overhead and ensures sub-microsecond latency. |
| Independent Watchdog Timer (IWDT) | Dedicated 15 kHz oscillator ensures fail-safe reset during clock failure or software hang - critical for safety-certifiable systems. |
| Sampling Rate Converter (SRC) | Real-time audio sample rate adjustment for MP3/WMA/AAC streams - enables seamless integration of diverse audio codecs without CPU load. |
| Port Output Enable for GPT (POEG) | Hardware-controlled disable of PWM outputs during fault conditions - prevents unintended actuator movement in motor control applications. |
Applications
| Industrial HMI Panel | Secure Edge Gateway |
|---|---|
Use Scenario: A factory-floor operator interface with 7-inch WVGA LCD, multi-touch buttons, and real-time machine status display. IC Role / Device Role / Timing Role: R7FA6M3AF3CFB#BA0 serves as main HMI controller, driving GLCDC + DRW for graphics, CTSU for touch, and RTC for timestamping events. Use Value: Hardware JPEG decode and 2D DRW reduce CPU load by >60% vs. software rendering, enabling smooth 60 fps UI updates with <50 ms touch response. |
Use Scenario: An IIoT gateway aggregating Modbus RTU data from PLCs and forwarding via encrypted TLS over Ethernet to cloud platforms. IC Role / Device Role / Timing Role: R7FA6M3AF3CFB#BA0 acts as secure protocol translator, using SCE7 for TLS handshake acceleration and ETHERC/EPTPC for time-stamped packet transmission. Use Value: IEEE 1588 PTP synchronization ensures ±100 ns timestamp accuracy across distributed sensors, meeting IEC 61850-9-3 requirements for substation automation. |
| Automotive Diagnostic Tool | Networked Building Controller |
Use Scenario: Handheld OBD-II scanner supporting UDS diagnostics, CAN FD emulation, and firmware update over USB. IC Role / Device Role / Timing Role: R7FA6M3AF3CFB#BA0 functions as dual-CAN master, managing simultaneous communication with vehicle ECUs and PC host via USBHS. Use Value: Dual CAN controllers with 32 mailboxes enable concurrent ISO 15765-2 (UDS) and SAE J1939 sessions without software arbitration delays. |
Use Scenario: HVAC controller integrating BACnet/IP over Ethernet, BLE bridge via USB, and local sensor monitoring via ADC/DAC. IC Role / Device Role / Timing Role: R7FA6M3AF3CFB#BA0 operates as networked control unit, running BACnet stack on ETHERC and managing analog HVAC actuators via DAC12 outputs. Use Value: Integrated 12-bit DAC12 and ACMPHS allow direct drive of 4–20 mA current loops and fast overtemperature shutdown without external op-amps or comparators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-performance, secure MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA6M3AH3CFB#AA0 | Same RA6M3 family, 176-pin LQFP package, 2 MB flash, but adds QSPI interface and extra GPIOs. | Better suited for designs requiring external serial flash boot or expanded I/O for multi-sensor arrays. | Select when board layout allows larger 176-pin LQFP and QSPI boot capability is needed. |
| STM32H743VI | Arm Cortex-M7 @ 480 MHz, 2 MB flash, no integrated Ethernet PTP or GLCDC; requires external PHY and graphics controller. | Targeted at compute-intensive tasks (e.g., AI inference) rather than integrated HMI + networking. | Choose only if higher CPU throughput outweighs loss of integrated PTP, DRW, and CTSU - adds BOM cost and PCB area. |
Compared with R7FA6M3AF3CFB#BA0, the R7FA6M3AH3CFB#AA0 offers pin-compatible scalability within the same family, while the STM32H743VI trades integrated peripherals for raw performance - making R7FA6M3AF3CFB#BA0 optimal for time-sensitive, graphics-enabled industrial gateways where system-level integration reduces design risk.
Availability
R7FA6M3AF3CFB#BA0 is available at Aetrix Electronics and suitable for industrial HMI panels, secure edge gateways, and automotive diagnostic tools requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R7FA6M3AF3CFB#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 RA6M3 Group - including R7FA6M3AF3CFB#BA0 - was designed for secure, graphics-rich, Ethernet-connected edge devices demanding real-time determinism, functional safety, and long-term supply assurance.
FAQ
What is the maximum operating frequency and core type of the R7FA6M3AF3CFB#BA0?
The R7FA6M3AF3CFB#BA0 features an Arm Cortex-M4 core with Floating Point Unit (FPU), operating at a maximum frequency of 120 MHz. This configuration delivers deterministic real-time performance for motor control, audio processing, and industrial communication stacks - verified in Renesas' R01DS0358EJ0120 datasheet Section 1.1.
Does the R7FA6M3AF3CFB#BA0 support IEEE 1588 Precision Time Protocol (PTP)?
Yes, the R7FA6M3AF3CFB#BA0 integrates a full IEEE 1588-2008 v2.0 PTP stack via its Ethernet MAC Controller (ETHERC), Ethernet DMA Controller (EDMAC), and dedicated Ethernet PTP Controller (EPTPC). This enables sub-microsecond time synchronization for industrial automation and substation control - confirmed in Section 1. Overview and Figure 1.1 block diagram of the R01DS0358EJ0120 datasheet.
What graphics capabilities does the R7FA6M3AF3CFB#BA0 provide?
The R7FA6M3AF3CFB#BA0 includes a Graphics LCD Controller (GLCDC), 2D Drawing Engine (DRW), JPEG codec, and Capacitive Touch Sensing Unit (CTSU). Together, they support WVGA+ displays, hardware-accelerated vector graphics, real-time JPEG decode, and multi-touch overlay - all documented in Sections 1.10 and 1.11 of the R01DS0358EJ0120 datasheet.
How many CAN interfaces does the R7FA6M3AF3CFB#BA0 include, and what standards do they support?
The R7FA6M3AF3CFB#BA0 integrates two Controller Area Network (CAN) modules compliant with ISO 11898-1 (CAN 2.0A/B), supporting both standard (11-bit) and extended (29-bit) message formats with up to 32 configurable mailboxes per channel - as specified in Table 1.8 and Section 37 of the R01DS0358EJ0120 datasheet.
What security features are implemented in the R7FA6M3AF3CFB#BA0's Secure Crypto Engine 7 (SCE7)?
The R7FA6M3AF3CFB#BA0's SCE7 provides hardware-accelerated AES-128/192/256, 3DES, ARC4, SHA1/224/256, MD5, GHASH, RSA/DSA/ECC, and a True Random Number Generator (TRNG), plus a 128-bit unique ID. These features enable secure boot, encrypted OTA updates, and TLS offload - detailed in Table 1.13 and Section 46 of the R01DS0358EJ0120 datasheet.
R7FA6M3AF3CFB#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 144-LQFP
- Series:
- RA6M3
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M4F
- Core Size:
- 32-Bit
- Speed:
- 120MHz
- Connectivity:
- CANbus, EBI/EMI, Ethernet, I2C, IrDA, MMC/SD, SCI, SPI, UART/USART, USB
- Peripherals:
- DMA, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 101
- Program Memory Size:
- 1MB (1M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 64K x 8
- RAM Size:
- 640K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 3.6V
- Data Converters:
- A/D 22x12b SAR; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA6M3AF3CFB#BA0 FAQ
1.How can I place an order for R7FA6M3AF3CFB#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA6M3AF3CFB#BA0 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for R7FA6M3AF3CFB#BA0 reliable?
The price and inventory of R7FA6M3AF3CFB#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA6M3AF3CFB#BA0 is usually 5 days.
3.What payment methods are accepted for R7FA6M3AF3CFB#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA6M3AF3CFB#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA6M3AF3CFB#BA0?
R7FA6M3AF3CFB#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA6M3AF3CFB#BA0 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for R7FA6M3AF3CFB#BA0?
For technical support, including R7FA6M3AF3CFB#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA6M3AF3CFB#BA0 requirements.
6.How does Aetrix verify that R7FA6M3AF3CFB#BA0 is sourced from the original manufacturer or authorized distributors?
All R7FA6M3AF3CFB#BA0 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R7FA6M3AF3CFB#BA0 meets industry standards.
7.What is the process for return or replacement of R7FA6M3AF3CFB#BA0?
All R7FA6M3AF3CFB#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA6M3AF3CFB#BA0, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The R7FA6M3AF3CFB#BA0 part is unused and in its original packaging.
Return procedure for R7FA6M3AF3CFB#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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