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Renesas R7FA4M3AF3CFP#BA0
- Part No.:
- R7FA4M3AF3CFP#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R7FA4M3AF3CFP#BA0.pdf
- Description:
- MCU RA4 ARM CM33 100MHZ 1MB/128K
- Quantity:
- Payment:
- Shipping:
Inventory:4,780
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Product details
Overview
R7FA4M3AF3CFP#BA0 from Renesas is a 100 MHz Arm Cortex-M33 microcontroller with 1 MB code flash, 8 KB data flash, and 128 KB SRAM (with ECC), integrated USB 2.0 Full-Speed, SDHI, QSPI, dual CAN, and Secure Crypto Engine for industrial HMI and secure edge node applications.
For engineers reviewing the R7FA4M3AF3CFP#BA0 datasheet, R7FA4M3AF3CFP#BA0 pinout, R7FA4M3AF3CFP#BA0 application, or R7FA4M3AF3CFP#BA0 equivalent, key selection criteria include operating temperature range (−40°C to +105°C), 100-pin LQFP package, TrustZone-enabled security partitioning, dual 12-bit ADCs with 5 Msps interleaving, and CTSU-based capacitive touch support.
Technical Context
The R7FA4M3AF3CFP#BA0 implements Armv8-M architecture with TrustZone, enabling secure/non-secure world isolation across memory (flash/SRAM), peripherals, and MPU regions. It integrates SCE9 crypto accelerators for AES/RSA/ECC/SHA256 and tamper detection via three dedicated pins.
Its system-level integration includes Event Link Controller (ELC) for CPU-free peripheral chaining, dual 6-channel AGT timers for low-power event timing, and QSPI controller supporting serial NOR/EEPROM/FeRAM with external device interface (EQBIU) mapping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M33 @ 100 MHz max - enables real-time deterministic execution with TrustZone security extension |
| Memory | 1 MB code flash + 8 KB data flash + 128 KB SRAM with ECC - supports background programming, SWAP operation, and fault-tolerant data retention |
| Operating Temp | −40°C to +105°C - qualified for extended industrial and automotive under-hood environments |
| Package | 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) - standard surface-mount footprint with 75 I/O pins and 14 5-V tolerant inputs |
| Analog | Dual 12-bit ADC (ADC12) × 2, 5 Msps interleaved - supports high-speed sensor acquisition with shared channel mapping (AN000/AN100 etc.) |
| Security | Secure Crypto Engine 9 + Arm TrustZone - hardware-accelerated AES-128/256, RSA-2048, ECC-P256, SHA256, and 128-bit unique ID |
| Connectivity | USB 2.0 FS (host/device), SDHI (SD/SDHC/SDXC), QSPI, 2× CAN 2.0B, 6× SCI, 2× IIC, SPI, SSIE - full-featured peripheral set for embedded gateway designs |
Pinout & Package
100-pin LQFP (PLQP0100KB-B), 14 mm × 14 mm, 0.5 mm pitch, with 75 general-purpose I/O pins, 14 5-V tolerant inputs, and dedicated power/ground, clock, reset, debug, and peripheral signal assignments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Core analog/digital power rails requiring local 0.1-µF decoupling; AVCC0/AVSS0 separate for ADC/DAC reference stability |
| XTAL / EXTAL | Main crystal oscillator interface | Supports 8–24 MHz external crystal for precise system clock generation; optional external clock input on EXTAL |
| USB_DP / USB_DM | USB 2.0 Full-Speed differential pair | Integrated transceiver - no external PHY required; VBUS monitoring and OTG control via USB_ID/USB_VBUS pins |
| QSPCLK / QIO0–QIO3 | Quad SPI clock and data lines | Direct interface to serial NOR/EEPROM/FeRAM; QSSL active-low chip select enables multi-device daisy-chaining |
| CRX0 / CTX0, CRX1 / CTX1 | CAN bus transceiver interfaces | Two independent ISO 11898-1 compliant CAN channels - require external transceivers (e.g., TJA1042) for physical layer |
| AN000–AN011, AN100–AN109 | Analog input channels | 12-channel (Unit 0) + 10-channel (Unit 1) ADC inputs with shared pins (e.g., AN000/AN100); internal temp sensor and VREF selectable per unit |
| TS0–TS19 | Capacitive touch sensing inputs | CTSU-driven electrode interface - supports up to 20 self-capacitance or mutual-capacitance touch buttons without external components |
Key Features
| Feature | Design Value |
|---|---|
| Arm TrustZone partitioning | Configurable secure/non-secure memory regions (flash/SRAM), peripheral attribution, and MPU_S/MPU_NS enforcement for firmware isolation |
| Background flash operation | Code flash reprogramming during active execution - enables field firmware updates without system interruption |
| ELC-driven peripheral linking | Hardware-triggered signal routing (e.g., ADC conversion complete → DMA transfer start) eliminates CPU polling overhead |
| Low-power AGT timers | Six 16-bit asynchronous timers powered from LOCO (32.768 kHz) - sustain accurate timing in Deep Software Standby mode |
| Secure boot & lifecycle management | Immutable ROM bootloader with hash verification, secure key storage, and tamper-detect pins enabling anti-cloning and firmware rollback protection |
Applications
| Industrial HMI Panel | Secure Edge Gateway |
|---|---|
Use Scenario: Touch-enabled operator interface for PLC-controlled machinery with real-time status display and alarm logging. IC Role / Device Role / Timing Role: Main application processor managing CTSU touch decoding, USB-HID communication, RTC timestamping, and SDHI-based log storage. Use Value: Integrated CTSU eliminates external touch controller IC; 128 KB SRAM with ECC ensures reliable GUI frame buffering and runtime integrity. | Use Scenario: Field-deployable protocol translator aggregating Modbus RTU, CAN bus, and sensor data for cloud upload via USB or SD card. IC Role / Device Role / Timing Role: Central protocol engine executing secure firmware updates over USB, encrypting sensor payloads with SCE9, and scheduling CAN/SCI transfers via ELC. Use Value: Dual CAN + 6× SCI + QSPI enables concurrent legacy fieldbus interfacing; TrustZone isolates update handler from data processing tasks. |
| Smart Energy Meter | Medical Sensor Hub |
Use Scenario: UL-certified electricity meter with tamper detection, pulse counting, and secure firmware signing for regulatory compliance. IC Role / Device Role / Timing Role: Security-critical metering controller using tamper pins, LVD monitoring, RTC calendar, and SCE9 for ECDSA signature generation. Use Value: Three dedicated tamper pins + power analysis resistance meet IEC 62055-41 anti-tampering requirements; 8 KB data flash endures 100k P/E cycles for lifetime metering logs. | Use Scenario: Portable patient monitor collecting ECG, temperature, and SpO₂ signals with local preprocessing and encrypted Bluetooth handoff. IC Role / Device Role / Timing Role: Analog front-end processor running dual ADC12 units at 5 Msps interleaved, DAC12 for calibration, and SSIE for audio alert output. Use Value: Simultaneous 12-bit sampling across 19 analog inputs enables multi-parameter sync acquisition; CTSU supports glove-compatible touch UI for clinical gloves. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Arm Cortex-M33 microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA4M3AF3CFB#AA0 | 144-pin LQFP, 109 I/O pins, 21 5-V tolerant inputs - larger footprint, higher pin count | Better suited for designs requiring >75 GPIOs, additional ADC channels, or expanded CAN/SCI connectivity | Select when board layout allows 144-pin LQFP and system demands more peripheral concurrency or I/O density. |
| R7FA6M3AF3CFP#BA0 | Same 100-pin LQFP package but Arm Cortex-M33 @ 120 MHz, 2 MB flash, FPU, and enhanced SCE10 crypto engine | Targeted at compute-intensive edge AI inference or advanced motor control requiring floating-point math | Choose for higher performance headroom and future-proofing where cost premium is acceptable and FPU utilization is confirmed. |
Compared with R7FA4M3AF3CFP#BA0, the R7FA4M3AF3CFB#AA0 offers greater I/O scalability in LQFP form, while R7FA6M3AF3CFP#BA0 delivers higher clock speed, double flash, and FPU - both retain pin-compatible software migration paths but differ in thermal envelope and BOM cost.
Availability
R7FA4M3AF3CFP#BA0 is available at Aetrix Electronics and suitable for industrial HMI, secure edge gateways, smart energy meters, and medical sensor hubs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R7FA4M3AF3CFP#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 markets.
The RA4M3 Group targets high-performance, secure, and power-efficient general-purpose microcontrollers - designed specifically for industrial automation, human-machine interfaces, and connected edge devices demanding robust security and rich analog/peripheral integration.
FAQ
What is the maximum operating frequency of the R7FA4M3AF3CFP#BA0?
The R7FA4M3AF3CFP#BA0 operates at a maximum frequency of 100 MHz using its Arm Cortex-M33 core. This speed is achievable with the on-chip PLL driven by the main clock oscillator (MOSC) or high-speed on-chip oscillator (HOCO). The device maintains this performance across its full −40°C to +105°C operating temperature range, with voltage regulation supported between 2.7 V and 3.6 V.
Does the R7FA4M3AF3CFP#BA0 support secure boot and firmware authentication?
Yes, the R7FA4M3AF3CFP#BA0 supports secure boot via an immutable ROM bootloader that validates firmware signatures using SCE9-accelerated ECDSA before execution. It includes secure key storage, device lifecycle management, and tamper detection through three dedicated pins - fulfilling requirements for IEC 62443-3-3 and Common Criteria EAL4+ certified designs.
What package type and pin count does the R7FA4M3AF3CFP#BA0 use?
The R7FA4M3AF3CFP#BA0 uses a 100-pin LQFP package (PLQP0100KB-B), measuring 14 mm × 14 mm with 0.5 mm pitch. It provides 75 general-purpose I/O pins, 14 of which are 5-V tolerant, along with dedicated power, clock, reset, debug, and peripheral signal assignments as defined in the official Renesas pin function table.
Can the R7FA4M3AF3CFP#BA0 interface directly with USB devices without an external transceiver?
Yes, the R7FA4M3AF3CFP#BA0 integrates a full-featured USB 2.0 Full-Speed module (USBFS) with an on-chip transceiver. It supports both host and device roles, requires only passive termination (1.5 kΩ pull-up on D+ for device mode), and includes VBUS monitoring, ID detection, and OTG control signals - eliminating the need for external PHY components in most USB implementations.
How many analog-to-digital converter channels does the R7FA4M3AF3CFP#BA0 support?
The R7FA4M3AF3CFP#BA0 integrates two independent 12-bit successive approximation ADC units (ADC12): Unit 0 supports up to 12 input channels, Unit 1 supports up to 10, with three shared pins (AN000/AN100, AN001/AN101, AN002/AN102), yielding 19 total usable analog input pins. Interleaved operation achieves 5 Msps aggregate sampling rate.
R7FA4M3AF3CFP#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- Series:
- RA4M3
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M33
- Core Size:
- 32-Bit
- Speed:
- 100MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, MMC/SD, QSPI, SCI, SPI, SSI, UART/USART, USB
- Peripherals:
- Crypto - AES, DMA, LVD, POR, PWM, RSA, SHA, Temp Sensor, WDT
- Number of I/O:
- 75
- Program Memory Size:
- 1MB (1M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 128K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 3.6V
- Data Converters:
- A/D 20x12b SAR; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA4M3AF3CFP#BA0 FAQ
1.How can I place an order for R7FA4M3AF3CFP#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA4M3AF3CFP#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 R7FA4M3AF3CFP#BA0 reliable?
The price and inventory of R7FA4M3AF3CFP#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA4M3AF3CFP#BA0 is usually 5 days.
3.What payment methods are accepted for R7FA4M3AF3CFP#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA4M3AF3CFP#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA4M3AF3CFP#BA0?
R7FA4M3AF3CFP#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA4M3AF3CFP#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 R7FA4M3AF3CFP#BA0?
For technical support, including R7FA4M3AF3CFP#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA4M3AF3CFP#BA0 requirements.
6.How does Aetrix verify that R7FA4M3AF3CFP#BA0 is sourced from the original manufacturer or authorized distributors?
All R7FA4M3AF3CFP#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 R7FA4M3AF3CFP#BA0 meets industry standards.
7.What is the process for return or replacement of R7FA4M3AF3CFP#BA0?
All R7FA4M3AF3CFP#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA4M3AF3CFP#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 R7FA4M3AF3CFP#BA0 part is unused and in its original packaging.
Return procedure for R7FA4M3AF3CFP#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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