Renesas R7FA6M3AH3CFC#AA0
- Part No.:
- R7FA6M3AH3CFC#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 176-LQFP
- Datasheet:
-
R7FA6M3AH3CFC#AA0.pdf
- Description:
- IC MCU 32BIT 2MB FLASH 176LFQFP
- Quantity:
- Payment:

- Shipping:

Inventory:459
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Product details
Overview
R7FA6M3AH3CFC#AA0 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/Full-Speed, QSPI, SDHI, GLCDC, DRW, CTSU, and SCE7 cryptographic engine - deployed in industrial HMIs, networked gateways, and secure edge controllers.
For engineers reviewing the R7FA6M3AH3CFC#AA0 datasheet, R7FA6M3AH3CFC#AA0 pinout, R7FA6M3AH3CFC#AA0 application, or R7FA6M3AH3CFC#AA0 equivalent, key selection criteria include IEEE 1588 PTP timing accuracy, on-chip graphics acceleration (GLCDC + DRW), dual USB controller support (HS/FS), 120-MHz deterministic real-time performance, and hardware-based AES-256/RSA/ECC security via SCE7.
Technical Context
The R7FA6M3AH3CFC#AA0 implements an Armv7E-M architecture with DSP extensions and single-precision FPU, supporting deterministic real-time control and signal processing. 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 decoupling.
Connectivity is centered on dual independent USB controllers (USBHS + USBFS), a full IEEE 802.3-compliant Ethernet MAC with integrated PTP hardware (EPTPC/SYNFP0/STCA), two CAN 2.0B channels, and dual SDHI interfaces supporting SDXC/eMMC 4.51 - all coordinated via Event Link Controller (ELC) for CPU-free peripheral chaining.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4 with FPU, 120 MHz max - enables floating-point math-intensive tasks like motor control and audio processing without software emulation. |
| Memory | 2-MB code flash (0-wait @ 40 MHz), 64-KB data flash (125k cycles), 640-KB SRAM (ECC on first 32 KB) - supports robust firmware updates, parameter storage, and large buffer handling. |
| Connectivity | Ethernet MAC + PTP (IEEE 1588 v2), USB 2.0 HS/FS, 2× CAN, 2× SDHI, QSPI, 3× I²C, 2× SPI, 10× SCI - enables time-synchronized industrial networking and multi-protocol device interfacing. |
| Analog | 2× 12-bit ADC (22 ch total, PGA × 6), 2× 12-bit DAC, 6× ACMPHS, TSN - supports precision sensor acquisition, closed-loop analog control, and thermal monitoring. |
| Graphics & HMI | GLCDC + 2D DRW + JPEG codec + CTSU - delivers hardware-accelerated GUI rendering, image decompression, and touch-button detection without external ASICs. |
| Security | SCE7 crypto engine: AES-128/192/256, RSA/ECC, SHA256, TRNG, 128-bit UID - provides certified, side-channel-resistant cryptographic operations for secure boot and OTA updates. |
| Package | 176-pin LQFP (24 mm × 24 mm, 0.5 mm pitch), -40°C to +105°C - suitable for industrial PCB layouts requiring thermal reliability and hand-soldering compatibility. |
Pinout & Package
176-pin LQFP package (24 mm × 24 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3, operating ambient temperature range −40°C to +105°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | 2.7–3.6 V core/io supply; dedicated power domains for analog, USB, and RTC enable low-noise operation and battery backup. |
| XTAL/EXTAL | Main clock oscillator input/output | Supports 8–24 MHz crystal for precise system timing; paired with PLL for 120-MHz core clock generation. |
| ETH_MDC/MDIO | Ethernet management interface | Provides IEEE 802.3-compliant MDIO bus access to external PHY registers for link configuration and status monitoring. |
| USB_VBUS/DP/DM | USB 2.0 High-Speed transceiver pins | Integrated USBHS PHY with on-chip voltage regulator - eliminates need for external USB termination or VBUS sensing circuitry. |
| SD0_CLK/SD0_CMD/SD0_DAT[0:3] | SD/MMC Host Interface 0 signals | Supports 4-bit SDHC/SDXC and eMMC 4.51 protocols with DMA-driven transfers - enables local storage and firmware update via removable media. |
| CTSU_Sx | Capacitive touch sensing electrode inputs | Dedicated CTSU scan pins with built-in current sources and noise cancellation - allows direct connection to overlay-covered touch electrodes without external components. |
Key Features
| Feature | Design Value |
|---|---|
| IEEE 1588 Precision Time Protocol Hardware | On-chip EPTPC with SYNFP0 and STCA units delivers sub-microsecond timestamping and hardware-assisted clock synchronization for industrial Ethernet time-sensitive networks. |
| Graphics Acceleration Engine | GLCDC + DRW combo renders layered GUIs (WVGA+), performs antialiased vector drawing, and manages framebuffer composition - offloads >90% of display processing from CPU. |
| Secure Crypto Engine 7 (SCE7) | Hardware-accelerated AES-256, ECDSA, SHA256, and TRNG meet IEC 62443-3-3 SL2 requirements - enables secure boot, encrypted firmware updates, and TLS handshake acceleration. |
| Memory Mirror Function (MMF) | Maps flash-resident application image to configurable virtual address space - simplifies field firmware updates by decoupling load address (flash offset) from link address (runtime execution location). |
| Event Link Controller (ELC) | Enables direct peripheral-to-peripheral triggering (e.g., ADC conversion complete → DMAC transfer → GPT capture) without CPU intervention - reduces latency and ISR overhead in real-time control loops. |
Applications
| Industrial HMI Panel | Smart Gateway Controller |
|---|---|
Use Scenario: A factory-floor operator interface with 7-inch WVGA LCD, capacitive touch overlay, and real-time machine status visualization. IC Role / Device Role / Timing Role: R7FA6M3AH3CFC#AA0 serves as main application processor, driving GLCDC/DRW for UI rendering, CTSU for touch response, and Ethernet PTP for synchronized alarm logging. Use Value: Eliminates external GPU and touch controller ICs; achieves <10 ms touch-to-display latency using hardware-accelerated graphics and event-triggered DMA transfers. | Use Scenario: An IIoT gateway aggregating Modbus RTU data from PLCs, converting to MQTT over TLS, and forwarding to cloud via Ethernet. IC Role / Device Role / Timing Role: R7FA6M3AH3CFC#AA0 acts as protocol translator and secure edge node - running FreeRTOS, SCE7 for TLS 1.2 crypto, ETHERC for time-stamped packet routing, and multiple SCI peripherals for serial device bridging. Use Value: Achieves end-to-end security with hardware AES-256 and ECDSA key generation; IEEE 1588 sync ensures consistent timestamping across distributed sensor nodes. |
| Medical Infusion Pump | Automated Test Equipment (ATE) |
Use Scenario: A Class II medical device delivering precise fluid dosing with real-time pressure monitoring, audible alerts, and USB-based calibration logging. IC Role / Device Role / Timing Role: R7FA6M3AH3CFC#AA0 functions as safety-critical controller - executing FDA-compliant motor control algorithms on Cortex-M4+FPU, sampling analog pressure sensors via ADC12+PGA, and managing USBFS for audit-trail data export. Use Value: On-chip ECC SRAM and ADC self-diagnosis satisfy IEC 62304 SW safety requirements; dual watchdogs (WDT + IWDT) provide redundant fault detection. | Use Scenario: Benchtop ATE platform performing parametric testing of analog ICs using programmable voltage/current sources and precision measurement. IC Role / Device Role / Timing Role: R7FA6M3AH3CFC#AA0 operates as instrument controller - coordinating high-speed DAC12 outputs, synchronized ADC12 acquisitions, and QSPI-connected waveform memory, while streaming results via USBHS to host PC. Use Value: 120-MHz core + hardware CRC/DOC enables real-time pass/fail decision logic; QSPI interface supports >40 MB/s waveform playback from external flash. |
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, identical core/peripherals, but in 144-pin LQFP (20 mm × 20 mm) - 23 fewer GPIOs, no SDHI channel 2, reduced QSPI pin count. | Suitable for space-constrained designs where second SDHI or full QSPI x4 mode is not required. | Select when board area is critical and peripheral count can be reduced without compromising functional safety or connectivity needs. |
| R7FA6M4AF3CFP#AA0 | RA6M4 variant: adds TrustZone support, enhanced SCE7 (AES-GCM, SHA3), larger 3-MB flash, but removes GLCDC/DRW and CTSU - targets secure IoT endpoints, not HMI. | Better suited for cloud-connected secure nodes requiring PSA Certified Level 2, not local display/touch interfaces. | Choose only if hardware-enforced isolation and advanced crypto (SHA3, AES-GCM) outweigh loss of graphics/touch capabilities. |
Compared with R7FA6M3AH3CFC#AA0, the R7FA6M3AH3CFB#AA0 offers footprint reduction at the cost of peripheral scalability, while the R7FA6M4AF3CFP#AA0 trades HMI features for higher security certification readiness - making R7FA6M3AH3CFC#AA0 uniquely balanced for industrial edge devices requiring both rich user interface and robust network security.
Availability
R7FA6M3AH3CFC#AA0 is available at Aetrix Electronics and suitable for industrial HMIs, smart gateways, medical infusion pumps, automated test equipment, and secure edge controllers requiring stable component supply across extended product lifecycles.
Supply support for R7FA6M3AH3CFC#AA0 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 over 40 years of microcontroller innovation and ISO 26262/IEC 61508-certified development processes.
The RA6M3 Group is designed for high-performance, secure, and graphics-rich industrial edge applications - combining real-time determinism, hardware-accelerated HMI, IEEE 1588 networking, and PSA-certified cryptography in a single chip.
FAQ
What is the maximum operating frequency and core architecture of the R7FA6M3AH3CFC#AA0?
The R7FA6M3AH3CFC#AA0 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-throughput signal processing, motor control, and real-time analytics while maintaining deterministic interrupt latency - confirmed in the official R01DS0358EJ0120 datasheet Section 1.1.
Does the R7FA6M3AH3CFC#AA0 support IEEE 1588 Precision Time Protocol, and how is it implemented?
Yes, the R7FA6M3AH3CFC#AA0 integrates a full IEEE 1588-2008 v2.0-compliant Ethernet PTP Controller (EPTPC) with dedicated hardware units: Synchronization Frame Processing (SYNFP0) and Statistical Time Correction Algorithm (STCA). It operates alongside the ETHERC and EDMAC to deliver sub-microsecond timestamping and hardware-assisted clock synchronization - detailed in Section 29 of the R01DS0358EJ0120 datasheet.
What graphics and human-machine interface peripherals are included in the R7FA6M3AH3CFC#AA0?
The R7FA6M3AH3CFC#AA0 integrates a Graphics LCD Controller (GLCDC), 2D Drawing Engine (DRW), JPEG codec, and Capacitive Touch Sensing Unit (CTSU). These enable hardware-accelerated GUI rendering (WVGA+), antialiased vector graphics, JPEG image decompression, and noise-immune touch button detection - all without external co-processors, as specified in Sections 51, 56, 57, and 58 of the R01DS0358EJ0120 datasheet.
How does the R7FA6M3AH3CFC#AA0 ensure functional safety and reliability in industrial environments?
The R7FA6M3AH3CFC#AA0 includes ECC protection on the first 32 KB of SRAM, SRAM parity checking, Flash area protection, ADC self-diagnosis, Clock Frequency Accuracy Measurement Circuit (CAC), Independent Watchdog Timer (IWDT), and illegal memory access detection. These features collectively support IEC 61508 SIL2 and ISO 13849 PLd compliance - documented in Sections 25–28 and 47 of the R01DS0358EJ0120 datasheet.
What security features does the Secure Crypto Engine 7 (SCE7) in the R7FA6M3AH3CFC#AA0 provide?
The SCE7 in the R7FA6M3AH3CFC#AA0 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. It meets PSA Certified Level 2 requirements and enables secure boot, encrypted firmware updates, and TLS offload - fully described in Section 46 of the R01DS0358EJ0120 datasheet.
R7FA6M3AH3CFC#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 176-LQFP
- Series:
- RA6M3
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 120MHz
- Connectivity:
- CANbus, EBI/EMI, Ethernet, I2C, IrDA, MMC/SD, SCI, SPI, UART/USART, USB
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 124
- Program Memory Size:
- 2MB (2M 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:
R7FA6M3AH3CFC#AA0 FAQ
1.How can I place an order for R7FA6M3AH3CFC#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA6M3AH3CFC#AA0 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 R7FA6M3AH3CFC#AA0 reliable?
The price and inventory of R7FA6M3AH3CFC#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA6M3AH3CFC#AA0 is usually 5 days.
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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 R7FA6M3AH3CFC#AA0?
For technical support, including R7FA6M3AH3CFC#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA6M3AH3CFC#AA0 requirements.
6.How does Aetrix verify that R7FA6M3AH3CFC#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FA6M3AH3CFC#AA0 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 R7FA6M3AH3CFC#AA0 meets industry standards.
7.What is the process for return or replacement of R7FA6M3AH3CFC#AA0?
All R7FA6M3AH3CFC#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA6M3AH3CFC#AA0, 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 R7FA6M3AH3CFC#AA0 part is unused and in its original packaging.
Return procedure for R7FA6M3AH3CFC#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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