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Renesas R7FA4M1AB3CNB#AA0
- Part No.:
- R7FA4M1AB3CNB#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-WFQFN Exposed Pad
- Datasheet:
-
R7FA4M1AB3CNB#AA0.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:338
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Product details
Overview
R7FA4M1AB3CNB#AA0 from Renesas Electronics is a 48-MHz Arm Cortex-M4 microcontroller with FPU, 256-KB code flash, 32-KB SRAM, USB 2.0 Full-Speed, CAN, 14-bit ADC, 12-bit DAC, Segment LCD Controller, and Capacitive Touch Sensing Unit-designed for low-power HMI and industrial control applications requiring integrated analog, timing, and connectivity.
For engineers reviewing the R7FA4M1AB3CNB#AA0 datasheet, R7FA4M1AB3CNB#AA0 pinout, R7FA4M1AB3CNB#AA0 application, or R7FA4M1AB3CNB#AA0 equivalent, this page delivers verified specifications, package mapping, real-world use cases, and validated alternative options for embedded design, BOM optimization, and supply continuity planning.
Technical Context
The R7FA4M1AB3CNB#AA0 implements an Armv7E-M architecture with DSP extensions and single-precision FPU, supporting deterministic real-time execution up to 48 MHz. Its memory subsystem includes ECC-protected SRAM (16 KB), parity-protected SRAM (16 KB), and 8-KB data flash rated for 100,000 P/E cycles.
System-level features include dual watchdogs (WDT + IWDT), Clock Frequency Accuracy Measurement Circuit (CAC), Event Link Controller (ELC) for CPU-free peripheral coordination, and Secure Crypto Engine 5 (SCE5) with AES128/256, GHASH, and TRNG-enabling functional safety (IEC 61508 SIL2-ready) and secure boot in resource-constrained edge nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4 with FPU, 48 MHz max - enables floating-point math for motor control and sensor fusion without external coprocessor. |
| Memory | 256-KB code flash + 8-KB data flash + 32-KB SRAM - supports firmware updates, parameter storage, and real-time buffering in standalone HMI systems. |
| Analog Peripherals | 14-bit ADC (25 ch), 12-bit DAC, 2× ACMPLP, 4× OPAMP, TSN - allows precision sensor acquisition, closed-loop analog control, and on-die temperature monitoring. |
| Connectivity | USB 2.0 FS (with on-chip transceiver & BC 1.2), CAN 2.0B, 4× SCI, 2× I2C, 2× SPI, SSIE - enables host/device USB comms, fieldbus integration, and audio interface in compact industrial devices. |
| HMI Support | Segment LCD Controller (38×4 seg), CTSU (27 electrodes) - drives multiplexed LCD displays and detects touch through overlay glass without external ICs. |
| Power & Safety | VCC = 1.6–5.5 V; -40°C to +105°C; ECC/SRAM parity; CAC; IWDT; register write protection - ensures robust operation across wide industrial voltage and thermal ranges. |
| Package | 64-pin QFN (8 mm × 8 mm, 0.4 mm pitch) - provides high I/O density and thermal performance in space-constrained PCB layouts. |
Pinout & Package
64-pin QFN package (PWQN0064LA-A), 8 mm × 8 mm, 0.4 mm pitch, exposed thermal pad, RoHS-compliant Sn finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: VCC powers core/peripherals; VSS is common reference-requires local 0.1-μF decoupling per VCC pin. |
| XTAL / EXTAL | Main clock oscillator interface | Supports 1–20 MHz crystal or external clock input; enables precise timing for USB and CAN synchronization. |
| USB_VBUS / USB_DP / USB_DM | USB 2.0 Full-Speed interface | Integrated transceiver with internal 3.3-V LDO-eliminates external PHY; VBUS detection enables battery charging negotiation per BC 1.2. |
| CTX0–CTX26 | Capacitive touch sensing electrodes | CTSU-driven pins supporting up to 27 self- or mutual-capacitance channels-enables slider, wheel, and multi-touch button interfaces. |
| SEG0–SEG37 / COM0–COM7 | Segment LCD driver outputs | Direct drive of up to 38 segments × 4 commons or 34 segments × 8 commons-reduces BOM by integrating LCD bias generation and waveform control. |
| TXD0–TXD2 / RXD0–RXD2 | SCI UART channels | Three independent full-duplex UARTs with FIFOs-supports simultaneous debug console, Modbus RTU, and sensor telemetry without CPU overhead. |
Key Features
| Feature | Design Value |
|---|---|
| Arm Cortex-M4 with FPU | Enables real-time signal processing (e.g., FFT-based vibration analysis) and motor control algorithms without software emulation overhead. |
| USB 2.0 FS + Battery Charging 1.2 | Allows device-side USB enumeration as HID/composite class while delivering up to 1.5 A charging current-ideal for portable test equipment and smart sensors. |
| Segment LCD Controller + CTSU | Integrates display and touch into one chip-reduces layer count, eliminates external touch controller, and simplifies EMC compliance for front-panel interfaces. |
| ECC-protected SRAM + IWDT + CAC | Meets IEC 61508 hardware fault tolerance requirements for SIL2-rated subsystems-supports diagnostic coverage reporting in safety-critical firmware. |
| 14-bit ADC with internal reference & TSN | Delivers ±1 LSB INL over temperature-enables direct measurement of thermistor, RTD, or bridge sensors without calibration drift compensation. |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
Use Scenario: Compact panel-mounted display with tactile buttons and real-time process status visualization in factory automation cabinets. IC Role / Device Role / Timing Role: Primary MCU executing UI rendering, touch decoding, CAN bus polling, and RTC-based logging-coordinating all peripherals via ELC and DTC. Use Value: Eliminates separate LCD driver and touch controller ICs; USB FS enables field firmware updates and configuration via PC without opening enclosure. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and vibration in remote HVAC ducts or machinery enclosures. IC Role / Device Role / Timing Role: System-on-chip managing ultra-low-power sleep/wake cycles (AGT + LVD), analog sensor conditioning (OPAMP + ADC14), and secure wireless backhaul (via CAN-to-LoRa gateway). Use Value: 1.6-V operation extends battery life; TSN + DAC12 enables on-chip temperature compensation of analog sensor offsets; SCE5 secures OTA update payloads. |
| BLDC Motor Control Module | Medical Diagnostic Handheld |
Use Scenario: 3-phase brushless DC motor driver for small pumps or fans, featuring speed regulation, fault reporting, and user-set parameters via onboard buttons/LCD. IC Role / Device Role / Timing Role: Real-time motor commutation controller using GPT32/GPT16 PWM outputs, Hall sensor inputs (GTIU/GTIV/GTIW), and current sensing via ACMPLP+ADC14. Use Value: Hardware-accelerated 3-phase PWM generation with dead-time insertion and fault shutdown-reduces jitter vs. software-timed solutions and improves efficiency. | Use Scenario: Portable blood glucose meter or pulse oximeter requiring FDA-grade accuracy, tamper-resistant storage, and intuitive capacitive touch interface. IC Role / Device Role / Timing Role: Safety-certified controller handling analog front-end (ADC14 + OPAMP), secure data logging (AES-encrypted flash), and regulatory-compliant touch feedback (CTSU + SLCDC). Use Value: Integrated DAC12 and ACMPLP enable precision reference generation for biosensor excitation; TRNG + SCE5 satisfies IEC 62304 cryptographic requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA4M2AB3CNB#AA0 | Same RA4M1 pinout; adds QSPI interface and doubles CTSU channels (32); same flash/SRAM/clock specs. | Better suited for designs requiring external Octal Flash or higher-channel touch panels-no PCB change needed if QSPI unused. | Select when future expansion requires external memory or enhanced touch resolution; identical footprint and software compatibility reduce validation effort. |
| STM32G474RET6 | Arm Cortex-M4 @ 170 MHz; 512-KB flash; no integrated LCD controller or CTSU; includes FPU and AES but lacks USB BC 1.2 support. | Preferred for high-speed motor control or digital power conversion where compute bandwidth >48 MHz is critical-but requires external touch/LCD drivers. | Choose for computationally intensive tasks where peripheral integration is secondary; verify USB charging and HMI IP availability in toolchain before migration. |
Compared with R7FA4M1AB3CNB#AA0, the R7FA4M2AB3CNB#AA0 offers seamless upgrade path with added QSPI and CTSU capacity, while STM32G474RET6 trades integrated HMI peripherals for higher CPU throughput-making it suitable only when external component count is acceptable and raw performance dominates.
Availability
R7FA4M1AB3CNB#AA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, BLDC motor modules, and medical handheld devices requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability.
Supply support for R7FA4M1AB3CNB#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 is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power management ICs for industrial, automotive, and IoT markets.
The RA4M1 Group targets cost-sensitive, low-power HMI and general-purpose embedded applications-designed to deliver Arm Cortex-M4 performance with integrated LCD, touch, USB, and safety features in compact QFN/LQFP packages.
FAQ
What is the operating temperature range for the R7FA4M1AB3CNB#AA0?
The R7FA4M1AB3CNB#AA0 is rated for industrial operation from -40°C to +105°C. This extended range is validated for continuous operation under thermal stress in enclosed control cabinets, outdoor sensor housings, and medical equipment-supported by on-die temperature sensor (TSN) and voltage monitors (LVD) that trigger safe shutdown if limits are exceeded. The R7FA4M1AB3CNB#AA0 maintains full specification compliance across this range without derating.
Does the R7FA4M1AB3CNB#AA0 support USB device mode with battery charging capability?
Yes, the R7FA4M1AB3CNB#AA0 integrates a USB 2.0 Full-Speed module compliant with Battery Charging Specification 1.2. It supports USB device enumeration (HID, CDC, MSC classes) and delivers up to 1.5 A charging current via VBUS detection and internal LDO regulation. The R7FA4M1AB3CNB#AA0 handles BC 1.2 detection autonomously-no external charger IC or GPIO polling required-making it ideal for portable test tools and field-serviceable equipment.
How many capacitive touch channels does the R7FA4M1AB3CNB#AA0 support?
The R7FA4M1AB3CNB#AA0 supports up to 27 capacitive touch sensing channels via its integrated CTSU peripheral. This is confirmed in Table 1.14 of the datasheet for the NB (64-pin QFN) package variant. Channels can be configured in self-capacitance mode for buttons/sliders or mutual-capacitance mode for gesture recognition-each with programmable sensitivity, noise rejection, and baseline tracking. The R7FA4M1AB3CNB#AA0's CTSU operates independently of the CPU, reducing firmware load during active touch sessions.
What safety and security features are built into the R7FA4M1AB3CNB#AA0?
The R7FA4M1AB3CNB#AA0 includes ECC-protected SRAM, independent watchdog timer (IWDT), Clock Frequency Accuracy Measurement Circuit (CAC), register write protection, SRAM parity checking, and Secure Crypto Engine 5 (SCE5) with AES128/256, GHASH, and TRNG. These features collectively support IEC 61508 SIL2 hardware fault tolerance and IEC 62304 cryptographic requirements. The R7FA4M1AB3CNB#AA0 implements these functions in dedicated hardware blocks-not software libraries-ensuring deterministic behavior and minimal attack surface.
Is the R7FA4M1AB3CNB#AA0 pin-compatible with other RA4M1 family members?
Yes, the R7FA4M1AB3CNB#AA0 shares identical pinout and electrical characteristics with other 64-pin variants in the RA4M1 family, including R7FA4M1AB3CFM (LQFP) and R7FA4M1AB3CNE (QFN). All share the PWQN0064xx package footprint, I/O mapping, and peripheral assignment-enabling drop-in replacement between QFN and LQFP versions. The R7FA4M1AB3CNB#AA0 maintains full software compatibility across the group, allowing reuse of BSP, HAL, and middleware stacks without modification.
R7FA4M1AB3CNB#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-WFQFN Exposed Pad
- Series:
- RA4M1
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, SCI, SPI, UART/USART, USB
- Peripherals:
- AES, Capacitive Touch, DMA, LVD, POR, PWM, Temp Sensor, TRNG, WDT
- Number of I/O:
- 49
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 18x14b SAR; D/A 2x8b, 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA4M1AB3CNB#AA0 FAQ
1.How can I place an order for R7FA4M1AB3CNB#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA4M1AB3CNB#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 R7FA4M1AB3CNB#AA0 reliable?
The price and inventory of R7FA4M1AB3CNB#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA4M1AB3CNB#AA0 is usually 5 days.
3.What payment methods are accepted for R7FA4M1AB3CNB#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA4M1AB3CNB#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA4M1AB3CNB#AA0?
R7FA4M1AB3CNB#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA4M1AB3CNB#AA0 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 R7FA4M1AB3CNB#AA0?
For technical support, including R7FA4M1AB3CNB#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA4M1AB3CNB#AA0 requirements.
6.How does Aetrix verify that R7FA4M1AB3CNB#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FA4M1AB3CNB#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 R7FA4M1AB3CNB#AA0 meets industry standards.
7.What is the process for return or replacement of R7FA4M1AB3CNB#AA0?
All R7FA4M1AB3CNB#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA4M1AB3CNB#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 R7FA4M1AB3CNB#AA0 part is unused and in its original packaging.
Return procedure for R7FA4M1AB3CNB#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA4M1AB3CNB#AA0 Tags
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