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Renesas R7FA6M3AF3CFC#BA1
- Part No.:
- R7FA6M3AF3CFC#BA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 176-LQFP
- Datasheet:
-
R7FA6M3AF3CFC#BA1.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 176LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,108
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Product details
Overview
R7FA6M3AF3CFC#BA1 from Renesas is a high-performance 32-bit Arm Cortex-M4 microcontroller with FPU, operating at up to 120 MHz, featuring 2-MB code flash, 640-KB SRAM, dual CAN, IEEE 1588 Ethernet MAC (ETHERC), USB 2.0 High-Speed and Full-Speed modules, and integrated graphics subsystem (GLCDC + DRW) for HMI-rich industrial edge devices.
For engineers reviewing the R7FA6M3AF3CFC#BA1 datasheet, R7FA6M3AF3CFC#BA1 pinout, R7FA6M3AF3CFC#BA1 application, or R7FA6M3AF3CFC#BA1 equivalent, key selection considerations include its 176-pin LQFP package, -40°C to +105°C industrial temperature grade, dual SDHI interfaces for redundant storage, hardware-accelerated AES/SHA/RSA via SCE7, and PTP-enabled Ethernet for time-critical automation networks.
Technical Context
The R7FA6M3AF3CFC#BA1 implements an Armv7E-M architecture with DSP extensions and single-precision FPU, supporting deterministic real-time execution in safety-aware systems. Its memory subsystem includes ECC-protected SRAM (first 32 KB), 64-KB data flash rated for 125,000 erase/write cycles, and Memory Mirror Function (MMF) enabling flexible firmware load/link address separation.
Connectivity is centered on dual high-integration peripherals: ETHERC with IEEE 1588 PTP (via EPTPC + EDMAC), and USBHS/USBFS with on-chip transceivers compliant with USB Battery Charging Spec 1.2. Analog capability includes two 12-bit ADCs (22-channel total), six ACMPHS comparators, and six PGAs - all accessible without CPU intervention via Event Link Controller (ELC).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4 with FPU, 120 MHz max - enables floating-point math for motor control and signal processing without software emulation. |
| Memory | 2-MB code flash (0-wait @ 40 MHz), 640-KB SRAM (ECC on first 32 KB) - supports large real-time OS images and fault-tolerant data buffers. |
| Connectivity | Dual CAN 2.0B, IEEE 1588 Ethernet MAC (ETHERC), USB 2.0 HS/FS, 2× SDHI, QSPI - enables multi-protocol industrial networking and secure boot from encrypted serial flash. |
| Analog | 2× 12-bit ADC (22 ch), 2× 12-bit DAC, 6× ACMPHS + 6× PGA - allows simultaneous sensor acquisition, closed-loop analog control, and fast threshold detection. |
| Graphics & HMI | GLCDC + 2D DRW + JPEG codec + CTSU - renders WVGA+ GUIs, accelerates vector/raster drawing, and enables touch-enabled operator interfaces. |
| Security | SCE7 crypto engine: AES-128/192/256, SHA256, RSA/ECC, TRNG, 128-bit UID - provides hardware-rooted secure boot, firmware authentication, and encrypted communication. |
| Package & Temp | 176-pin LQFP (24 mm × 24 mm, 0.5 mm pitch), -40°C to +105°C - suitable for convection-cooled industrial PLCs and gateway enclosures without forced cooling. |
Pinout & Package
176-pin LQFP package (24 mm × 24 mm, 0.5 mm pitch), RoHS-compliant, with 124 CMOS I/O pins, 9 dedicated inputs, 21 5-V-tolerant pins, and 18 high-current (20 mA) outputs. Power domains: VCC = 2.7–3.6 V; VBATT supports RTC backup.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Core power supply and ground | Decoupling required per Renesas layout guidelines; separate analog/digital VCC pins enable noise isolation for ADC/DAC operation. |
| XTAL1/XTAL2 | Main clock oscillator input | Supports 8–24 MHz crystal; used for high-accuracy system timing and USB/ETH PLL reference. |
| RTCX1/RTCX2 | Sub-clock oscillator input | 32.768 kHz crystal connection for calendar-mode RTC and low-power wake-up timer. |
| ETH_MDC/MDIO | IEEE 802.3 management interface | Direct connection to external PHY for register configuration and link status monitoring without CPU overhead. |
| USB_VBUS/USB_ID | USB host/device detection | Enables automatic role switching (host/device) in USB OTG-like configurations using internal voltage regulator and transceiver. |
| CTSU_Sx | Capacitive touch sensing channel | Up to 32 channels supported via shared GPIO; enables robust proximity/touch UI without external ICs or shielding. |
Key Features
| Feature | Design Value |
|---|---|
| Memory Mirror Function (MMF) | Allows firmware image to be loaded at any flash offset while linked to fixed virtual address - simplifies OTA updates and dual-bank swapping. |
| Event Link Controller (ELC) | Hardware routing of 128+ peripheral events (e.g., ADC EOC → DMA trigger → GLCDC refresh) eliminates CPU polling and ISR latency. |
| IEEE 1588 Precision Time Protocol (PTP) | EPTPC + ETHERC + EDMAC enables sub-microsecond timestamping and synchronization across distributed industrial controllers. |
| Secure Crypto Engine 7 (SCE7) | Accelerates AES-GCM, ECDSA, and SHA256 at >10 MB/s - meets IEC 62443-3-3 SL2 requirements for secure firmware signing and TLS offload. |
| Graphics LCD Controller (GLCDC) | Triple-plane overlay (background + 2 graphics layers), 32-bit ARGB output, and GPX bus master - drives 800×480+ displays with zero CPU rendering load. |
| Sampling Rate Converter (SRC) | Real-time audio resampling (up to 50 MHz clock) for MP3/WMA/AAC decoding - enables voice-guided HMI and protocol gateway audio feedback. |
Applications
| Industrial PLC Controller | Smart Energy Gateway |
|---|---|
|
Use Scenario: Programmable logic controller executing ladder logic and motion control algorithms in factory automation cabinets. IC Role / Device Role / Timing Role: Main application processor with deterministic 120-MHz Cortex-M4 core, dual CAN for fieldbus interconnect, and IEEE 1588 Ethernet for synchronized I/O scanning. Use Value: Hardware-accelerated CRC, ECC SRAM, and independent watchdog timers meet IEC 61508 SIL2 functional safety requirements without external monitors. |
Use Scenario: Two-way communication hub aggregating smart meter data (DLMS/COSEM over M-Bus, RF, PLC) and forwarding via LTE/Ethernet. IC Role / Device Role / Timing Role: Secure network processor with SCE7 crypto engine, dual SDHI for local data logging and firmware rollback, and USBHS for field technician diagnostics. Use Value: AES-256 encryption, SHA256 signature verification, and 128-bit UID ensure end-to-end data integrity and device identity in utility-grade AMI deployments. |
| HMI-Enabled Human Interface Terminal | Networked Building Automation Controller |
|
Use Scenario: Wall-mounted touchscreen panel for HVAC, lighting, and access control in commercial buildings. IC Role / Device Role / Timing Role: Graphics subsystem controller with GLCDC, 2D DRW, JPEG codec, and CTSU - renders animated UIs and processes capacitive touch gestures. Use Value: On-chip 2D acceleration reduces BOM cost vs. external GPU; 640-KB SRAM stores multiple display framebuffers and font assets. |
Use Scenario: DIN-rail mounted controller managing BACnet MS/TP, KNX, and Modbus RTU field devices while connecting to cloud via Ethernet/Wi-Fi. IC Role / Device Role / Timing Role: Multi-protocol connectivity hub with 2× CAN, 3× I2C, 10× SCI, and dual Ethernet MAC - bridges legacy building systems to modern IP networks. Use Value: Hardware timestamping (PTP), ELC-triggered ADC sampling, and low-power AGT timers enable precise scheduling of HVAC setpoint updates and energy reporting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-performance industrial MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA6M3AH3CFB#AA0 | Same RA6M3 family, 144-pin LQFP, 100-MHz max frequency, 1-MB flash, no Ethernet MAC or USBHS. | Lacks IEEE 1588 Ethernet and USB 2.0 HS - suitable for cost-sensitive CAN/I2C-only edge nodes without time-sync or high-speed host connectivity. | Select when Ethernet/USBHS are unnecessary and PCB space/layout cost must be minimized. |
| R7FA6M4AF3CFB#AA0 | RA6M4 variant: same 176-pin LQFP, 2-MB flash, but adds TrustZone support, enhanced SCE8 crypto, and higher USBHS throughput (480 Mbps sustained). | Includes Arm TrustZone for secure partitioning and certified PSA Level 2 - required for cloud-connected devices needing hardware-isolated secure enclaves. | Choose when PSA Certified security, secure boot attestation, or future-proofing against evolving IoT compliance mandates is mandatory. |
Compared with R7FA6M3AF3CFC#BA1, the R7FA6M3AH3CFB#AA0 reduces feature count and performance for lower-cost implementations, while the R7FA6M4AF3CFB#AA0 extends security and connectivity capabilities at identical pinout - making it a forward-compatible upgrade path for long-lifecycle industrial designs.
Availability
R7FA6M3AF3CFC#BA1 is available at Aetrix Electronics and suitable for industrial PLCs, smart energy gateways, HMI terminals, and building automation controllers requiring stable component supply across extended product lifecycles.
Supply support for R7FA6M3AF3CFC#BA1 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 enterprise applications.
The RA6M3 Group targets high-end industrial and IoT edge devices requiring real-time performance, rich graphics, secure connectivity, and functional safety - with R7FA6M3AF3CFC#BA1 optimized for Ethernet- and USB-enabled HMI gateways.
FAQ
What is the maximum operating frequency and core type of the R7FA6M3AF3CFC#BA1?
The R7FA6M3AF3CFC#BA1 features an Arm Cortex-M4 core with Floating Point Unit (FPU), operating at a maximum frequency of 120 MHz. This enables high-throughput signal processing, motor control, and real-time deterministic execution. The core implements the Armv7E-M architecture with DSP instruction set and supports 4-GB address space. All performance specifications for R7FA6M3AF3CFC#BA1 are validated under industrial temperature conditions (-40°C to +105°C).
Does the R7FA6M3AF3CFC#BA1 support IEEE 1588 Precision Time Protocol (PTP)?
Yes, the R7FA6M3AF3CFC#BA1 integrates a full IEEE 1588-2008 v2.0 PTP implementation via its Ethernet PTP Controller (EPTPC), working in conjunction with the Ethernet MAC (ETHERC) and Ethernet DMA Controller (EDMAC). It supports hardware timestamping of PTP frames with sub-microsecond accuracy, synchronization frame processing (SYNFP0), and statistical time correction (STCA) - essential for time-sensitive industrial automation networks. This capability is native to R7FA6M3AF3CFC#BA1 and requires no external timing ICs.
What graphics and human-machine interface (HMI) peripherals are integrated into the R7FA6M3AF3CFC#BA1?
The R7FA6M3AF3CFC#BA1 includes a complete on-chip HMI subsystem: Graphics LCD Controller (GLCDC) supporting triple-plane overlay and WVGA+ resolution, 2D Drawing Engine (DRW) for hardware-accelerated vector/raster rendering, JPEG codec for image decompression, and Capacitive Touch Sensing Unit (CTSU) with up to 32 channels. These peripherals eliminate the need for external GPUs or touch controllers in R7FA6M3AF3CFC#BA1-based designs, reducing BOM cost and board area while enabling responsive, animated user interfaces.
How does the R7FA6M3AF3CFC#BA1 handle security-critical operations like encryption and secure boot?
The R7FA6M3AF3CFC#BA1 incorporates the Secure Crypto Engine 7 (SCE7), which provides hardware-accelerated AES-128/192/256, SHA256, RSA/ECC, and TRNG functions. SCE7 supports secure key storage, firmware signature verification, and encrypted firmware update decryption - meeting IEC 62443-3-3 SL2 requirements. The R7FA6M3AF3CFC#BA1 also includes 128-bit unique ID, flash area protection, and register write protection to enforce secure boot and runtime integrity without software-only reliance.
What package and temperature grade is specified for the R7FA6M3AF3CFC#BA1?
The R7FA6M3AF3CFC#BA1 is offered exclusively in a 176-pin LQFP package (24 mm × 24 mm, 0.5 mm pitch) rated for industrial temperature operation from -40°C to +105°C. This package includes 124 CMOS I/O pins, 21 5-V-tolerant inputs/outputs, and 18 high-current (20 mA) drivers. The thermal design supports convection-cooled industrial enclosures, and the pinout is fully compatible with other RA6M3 variants in the same LQFP footprint.
R7FA6M3AF3CFC#BA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 176-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:
- 124
- 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 24x12b SAR; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA6M3AF3CFC#BA1 FAQ
1.How can I place an order for R7FA6M3AF3CFC#BA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA6M3AF3CFC#BA1 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 R7FA6M3AF3CFC#BA1 reliable?
The price and inventory of R7FA6M3AF3CFC#BA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA6M3AF3CFC#BA1 is usually 5 days.
3.What payment methods are accepted for R7FA6M3AF3CFC#BA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA6M3AF3CFC#BA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA6M3AF3CFC#BA1?
R7FA6M3AF3CFC#BA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA6M3AF3CFC#BA1 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 R7FA6M3AF3CFC#BA1?
For technical support, including R7FA6M3AF3CFC#BA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA6M3AF3CFC#BA1 requirements.
6.How does Aetrix verify that R7FA6M3AF3CFC#BA1 is sourced from the original manufacturer or authorized distributors?
All R7FA6M3AF3CFC#BA1 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 R7FA6M3AF3CFC#BA1 meets industry standards.
7.What is the process for return or replacement of R7FA6M3AF3CFC#BA1?
All R7FA6M3AF3CFC#BA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA6M3AF3CFC#BA1, 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 R7FA6M3AF3CFC#BA1 part is unused and in its original packaging.
Return procedure for R7FA6M3AF3CFC#BA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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