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Renesas R7FA4M3AE3CFB#BA0
- Part No.:
- R7FA4M3AE3CFB#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
R7FA4M3AE3CFB#BA0.pdf
- Description:
- MCU RA4 ARM CM33 100MHZ 768K/128
- Quantity:
- Payment:
- Shipping:
Inventory:3,759
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Product details
Overview
R7FA4M3AE3CFB#BA0 from Renesas Electronics is a 32-bit Arm Cortex-M33 microcontroller operating at up to 100 MHz, featuring 768 KB code flash, 8 KB data flash, 128 KB SRAM with ECC, dual 12-bit ADCs (5 Msps interleaved), and integrated Secure Crypto Engine with AES/RSA/ECC/SHA256 for secure IoT edge nodes in industrial gateways and smart metering systems.
For engineers reviewing the R7FA4M3AE3CFB#BA0 datasheet, R7FA4M3AE3CFB#BA0 pinout, R7FA4M3AE3CFB#BA0 application, or R7FA4M3AE3CFB#BA0 equivalent, key selection considerations include its -40°C to +105°C operation, 144-pin LQFP package, USB 2.0 Full-Speed + SDHI + QSPI interfaces, dual CAN 2.0B support, and TrustZone-enabled secure boot and lifecycle management.
Technical Context
The R7FA4M3AE3CFB#BA0 implements Armv8-M with Security Extension, including separate Secure/Non-secure SysTick timers, MPU_S/MPU_NS (8 regions each), and CoreSight ETM-M33 for trace. Its memory subsystem integrates background flash programming and SWAP operations for zero-downtime firmware updates.
Security is enforced via Arm TrustZone partitioning across flash (3 regions), data flash (2), and SRAM (3), combined with SCE9 hardware accelerators for AES-128/256, RSA-2048, ECC-P256, and SHA256, plus tamper detection on up to three dedicated pins and secure pin multiplexing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M33 @ 100 MHz max; supports TrustZone and PMSAv8 memory protection |
| Memory | 768 KB code flash (background/SWAP), 8 KB data flash (100k P/E cycles), 128 KB SRAM with ECC |
| Analog | Dual 12-bit ADC12 (unit 0: 12 ch, unit 1: 10 ch; 5 Msps interleaved), dual 12-bit DAC12, TSN |
| Connectivity | USB 2.0 FS (host/device), SDHI (SD/SDHC/SDXC), QSPI, 2× CAN 2.0B, 6× SCI, 2× IIC, SPI, SSIE |
| Timers | GPT32 × 4, GPT16 × 4, AGT × 6, RTC with calendar (2000–2099), WDT/IWDT |
| Security | SCE9 crypto engine (AES/RSA/ECC/SHA256), 128-bit unique ID, tamper pins, lifecycle management |
| Package & Temp | 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch), -40°C to +105°C industrial grade |
Pinout & Package
144-pin LQFP (PLQP0144KA-B) package with 109 general-purpose I/O pins, 21 of which are 5-V tolerant, plus dedicated power (VCC/VSS/AVCC/AVSS), clock (XTAL/EXTAL/XCIN/XCOUT), reset (RES), debug (SWDIO/SWCLK/TMS/TCK/TDO), and peripheral-specific pins for USB (USB_DP/USB_DM), CAN (CRX0/CTX0, CRX1/CTX1), SDHI (SD0CLK/SD0CMD/SD0DAT0–7), QSPI (QSPCLK/QSSL/QIO0–3), and analog (AN000–AN011, AN100–AN109, VREFH/VREFL).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Core logic power (2.7–3.6 V); decoupling required per datasheet layout guidelines |
| XTAL / EXTAL | Main crystal oscillator interface | Supports 8–24 MHz external crystal; enables precise timing for USB/RTC/clock accuracy |
| USB_DP / USB_DM | USB 2.0 Full-Speed differential pair | Integrated transceiver; no external PHY needed; supports host/device mode with 10-pipe endpoint buffer |
| CRX0 / CTX0 | CAN 0 receive/transmit | ISO 11898-1 compliant; requires external CAN transceiver; supports 32 mailboxes and FIFO mode |
| SD0CLK / SD0CMD / SD0DAT0–3 | SD/MMC 4-bit host interface | Direct connection to SD/SDHC/SDXC cards; supports high-speed SDR modes per SD spec compliance |
| QSPCLK / QSSL / QIO0–3 | Quad SPI memory controller outputs | Drives serial flash/FeRAM/EEPROM; enables XIP and fast code/data fetch from external memory |
Key Features
| Feature | Design Value |
|---|---|
| Secure Boot with TrustZone | Hardware-enforced isolation between secure firmware (bootloader, crypto keys) and non-secure application code |
| Background Flash Programming | Enables firmware update while executing from alternate bank; eliminates system downtime during OTA |
| Interleaved ADC Sampling | 5 Msps aggregate throughput using dual ADC12 units; supports real-time motor control and sensor fusion |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining (e.g., timer → ADC → DMA) without CPU intervention or ISR latency |
| Capacitive Touch Sensing Unit (CTSU) | 20-channel touch sensing with noise immunity; enables robust HMI on industrial panels without external ICs |
| Battery-Backed RTC & SRAM | VBATT-powered RTC calendar (2000–2099) and 1 KB standby SRAM retain state during main power loss |
Applications
| Industrial Gateway | Smart Energy Meter |
|---|---|
Use Scenario: Edge node aggregating Modbus RTU, CAN bus, and pulse inputs from field devices into encrypted MQTT/HTTP payloads for cloud upload. IC Role / Device Role / Timing Role: Central MCU managing protocol translation, secure TLS handshake, and time-stamped data logging with RTC backup. Use Value: Integrated USBFS + SDHI enables local firmware updates and log storage; SCE9 accelerates TLS handshakes by 4× vs. software-only. |
Use Scenario: Revenue-grade electricity meter with anti-tampering features, tariff switching, and remote firmware upgrades over PLC or RF mesh. IC Role / Device Role / Timing Role: Secure metering controller performing metrology calculations, cryptographic signing of consumption data, and tamper event logging. Use Value: Dual CAN 2.0B interfaces connect to PLC modems and auxiliary sensors; tamper pins detect enclosure breach and trigger secure erase. |
| Motor Control Hub | Secure HMI Terminal |
Use Scenario: Compact BLDC/PMSM drive for HVAC compressors or pumps, requiring sensorless FOC, thermal monitoring, and safety-compliant diagnostics. IC Role / Device Role / Timing Role: Real-time motion controller generating 3-phase PWM (GTOUUP/GTOULO etc.) with synchronized current sampling via ADC12 triggers. Use Value: GPT32 × 4 + AGT × 6 provide sub-microsecond PWM dead-time control and Hall sensor input capture; TSN monitors die temperature for derating. |
Use Scenario: Factory-floor operator terminal with capacitive touch buttons, status LEDs, and encrypted configuration storage for machine parameters. IC Role / Device Role / Timing Role: Human interface processor running CTSU-based touch UI, driving RGB LEDs via PWM, and storing calibrated settings in protected data flash. Use Value: CTSU supports 20 independent touch channels with built-in noise rejection; 8 KB data flash endures 100k write cycles for frequent parameter updates. |
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#BA0 | 1 MB code flash (vs. 768 KB), same peripherals, package, and temp grade | Required when firmware image exceeds 768 KB or future-proofing for feature expansion | Select R7FA4M3AF3CFB#BA0 if full 1 MB flash is needed; otherwise R7FA4M3AE3CFB#BA0 reduces cost and footprint |
| R7FA6M5BH3CFB#AA0 | Arm Cortex-M33 @ 200 MHz, 2 MB flash, enhanced security (SCE10), but no SDHI or USBFS | Suitable for compute-intensive secure boot or AI inference at edge; not for USB/SD card host roles | Choose R7FA6M5BH3CFB#AA0 only when higher CPU performance and advanced crypto outweigh loss of USB/SDHI connectivity |
Compared with R7FA4M3AF3CFB#BA0, the R7FA4M3AE3CFB#BA0 trades 256 KB flash capacity for lower BOM cost and identical peripheral integration, while R7FA6M5BH3CFB#AA0 delivers double CPU speed and stronger crypto but removes critical host interfaces needed for field-upgradable embedded systems.
Availability
R7FA4M3AE3CFB#BA0 is available at Aetrix Electronics and suitable for industrial gateways, smart energy meters, motor control hubs, and secure HMI terminals requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R7FA4M3AE3CFB#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 automotive, industrial, and IoT markets.
The RA4M3 Group targets secure, high-performance industrial and IoT edge applications, combining Arm TrustZone, hardware crypto acceleration, and rich connectivity (USB/SDHI/CAN/QSPI) for scalable, certified designs.
FAQ
What is the maximum operating frequency and core architecture of the R7FA4M3AE3CFB#BA0?
The R7FA4M3AE3CFB#BA0 features an Arm Cortex-M33 core operating at up to 100 MHz, implementing the Armv8-M architecture with Security Extension (TrustZone). It includes dual SysTick timers (Secure/Non-secure), MPU_S/MPU_NS (8 regions each), and CoreSight ETM-M33 for real-time trace-enabling deterministic real-time execution and hardware-isolated secure firmware on the R7FA4M3AE3CFB#BA0.
Does the R7FA4M3AE3CFB#BA0 support USB device and host functionality?
Yes, the R7FA4M3AE3CFB#BA0 integrates a USB 2.0 Full-Speed module (USBFS) that operates in both device and host modes. It includes an internal transceiver, supports all USB 2.0 transfer types (control/bulk/interrupt/isochronous), and provides up to 10 configurable pipes with dedicated buffer memory-making the R7FA4M3AE3CFB#BA0 suitable for USB-connected industrial peripherals and firmware update interfaces.
How does the R7FA4M3AE3CFB#BA0 implement secure firmware updates?
The R7FA4M3AE3CFB#BA0 enables secure firmware updates via background flash programming with SWAP operation, allowing new firmware to be written to one flash bank while executing from another. Combined with TrustZone-enforced secure boot and SCE9-accelerated signature verification (RSA-2048/SHA256), the R7FA4M3AE3CFB#BA0 ensures authenticated, atomic, and zero-downtime OTA updates without exposing keys or intermediate states.
What analog peripherals are integrated into the R7FA4M3AE3CFB#BA0?
The R7FA4M3AE3CFB#BA0 integrates two 12-bit successive approximation ADC12 units (unit 0: 12 channels, unit 1: 10 channels) capable of 5 Msps interleaved sampling, two 12-bit DAC12 units, and an on-die Temperature Sensor (TSN). Analog reference pins (VREFH/VREFL) support independent scaling, and shared channel pins (AN000/AN100 etc.) allow flexible signal routing-critical for sensor fusion and motor control on the R7FA4M3AE3CFB#BA0.
Is the R7FA4M3AE3CFB#BA0 pin-compatible with other RA4M3 group members?
Yes, the R7FA4M3AE3CFB#BA0 is pin-compatible with other 144-pin LQFP variants in the RA4M3 family, including R7FA4M3AF3CFB#BA0 and R7FA4M3AD3CFB#BA0. All share identical pin assignments, electrical characteristics, and peripheral mappings per the PLQP0144KA-B package-allowing direct substitution within the same footprint when flash size or temp grade requirements change, without PCB redesign for the R7FA4M3AE3CFB#BA0.
R7FA4M3AE3CFB#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 144-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:
- 109
- Program Memory Size:
- 768KB (768K 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 22x12b SAR; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA4M3AE3CFB#BA0 FAQ
1.How can I place an order for R7FA4M3AE3CFB#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA4M3AE3CFB#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 R7FA4M3AE3CFB#BA0 reliable?
The price and inventory of R7FA4M3AE3CFB#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA4M3AE3CFB#BA0 is usually 5 days.
3.What payment methods are accepted for R7FA4M3AE3CFB#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA4M3AE3CFB#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA4M3AE3CFB#BA0?
R7FA4M3AE3CFB#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA4M3AE3CFB#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 R7FA4M3AE3CFB#BA0?
For technical support, including R7FA4M3AE3CFB#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA4M3AE3CFB#BA0 requirements.
6.How does Aetrix verify that R7FA4M3AE3CFB#BA0 is sourced from the original manufacturer or authorized distributors?
All R7FA4M3AE3CFB#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 R7FA4M3AE3CFB#BA0 meets industry standards.
7.What is the process for return or replacement of R7FA4M3AE3CFB#BA0?
All R7FA4M3AE3CFB#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA4M3AE3CFB#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 R7FA4M3AE3CFB#BA0 part is unused and in its original packaging.
Return procedure for R7FA4M3AE3CFB#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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