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Renesas R7FA4M1AB3CNE#AA0
- Part No.:
- R7FA4M1AB3CNE#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R7FA4M1AB3CNE#AA0.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 48HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:478
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Product details
Overview
R7FA4M1AB3CNE#AA0 from Renesas Electronics is a 48-MHz Arm Cortex-M4 microcontroller with FPU, 256-KB code flash, 32-KB SRAM, integrated Segment LCD Controller (SLCDC), Capacitive Touch Sensing Unit (CTSU), USB 2.0 Full-Speed interface, 14-bit ADC, and hardware security engine (SCE5). It targets low-power HMI applications such as industrial control panels and smart home displays operating from -40°C to +105°C.
For engineers reviewing the R7FA4M1AB3CNE#AA0 datasheet, R7FA4M1AB3CNE#AA0 pinout, R7FA4M1AB3CNE#AA0 application, or R7FA4M1AB3CNE#AA0 equivalent, key selection criteria include its 48-pin QFN package, 48-MHz real-time performance with ECC-protected SRAM, dual DACs (12-bit + dual 8-bit), and integrated CTSU/SLCDC for touch-and-display subsystems without external controllers.
Technical Context
The R7FA4M1AB3CNE#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 256-KB code flash with read-while-write capability, 8-KB data flash rated for 100,000 P/E cycles, and 32-KB SRAM split into 16-KB ECC-protected and 16-KB parity-protected regions.
Peripherals are tightly coupled via the Event Link Controller (ELC), enabling autonomous interaction between modules-e.g., ADC conversion completion can directly trigger DMA transfer without CPU intervention. The integrated SCE5 crypto engine supports AES128/256, GHASH, and TRNG, while safety features include CAC clock accuracy monitoring, IWDT with dedicated 15-kHz oscillator, and register write protection.
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 software emulation. |
| Memory | 256-KB code flash + 8-KB data flash + 32-KB SRAM - sufficient for secure boot, OTA updates, and real-time buffer storage in edge devices. |
| Analog | 14-bit ADC (25 ch), 12-bit DAC, dual 8-bit DACs for ACMPLP - supports high-resolution sensor acquisition and precision reference generation. |
| Connectivity | USB 2.0 FS (with on-chip transceiver), CAN 2.0B, 4× SCI, 2× I2C, 2× SPI, SSIE - enables mixed wired communication in industrial gateways. |
| HMI | SLCDC (38×4 seg), CTSU (27 electrodes) - drives segmented LCDs and detects multi-touch gestures without external ICs. |
| Power & Temp | 1.6–5.5 V supply, -40°C to +105°C operation, 100-pin LQFP / 48-pin QFN options - suitable for extended-temperature industrial and automotive cabin applications. |
| Security | SCE5 with AES128/256, TRNG, GHASH - provides hardware-accelerated encryption for firmware signing and secure data logging. |
Pinout & Package
Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant Sn finish, rated for -40°C to +105°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: VCC powers core/peripherals; VSS is common ground reference with local 0.1-μF decoupling required. |
| XTAL / EXTAL | Main clock oscillator interface | Supports 1–20 MHz crystal; enables precise timing for USB and RTC when paired with SOSC (32.768 kHz). |
| USB_VBUS / USB_DP / USB_DM | USB 2.0 Full-Speed interface | Integrated transceiver with internal 3.3-V LDO - eliminates external PHY and reduces BOM count for USB device mode. |
| SLCD_SEG0–33 / SLCD_COM0–3 | Segment LCD driver outputs | Direct drive of up to 34 segments × 8 commons - enables compact display interfaces without external segment drivers. |
| CTSU_TS0–26 | Capacitive touch sensing inputs | 27-channel CTSU electrode interface with built-in charge-transfer measurement - supports slider, wheel, and proximity detection. |
| ADC0–24 | Analog input channels | 25-channel 14-bit ADC with selectable 12-/14-bit resolution - balances speed (1.25 MSPS) and precision for multi-sensor systems. |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Enables zero-CPU-latency peripheral chaining - e.g., ADC end-of-conversion triggers DMA transfer to SRAM, then fires interrupt. |
| Segment LCD Controller (SLCDC) | Hardware-based waveform generation and contrast control (16-step voltage boost) - eliminates MCU overhead for static/dynamic LCD refresh. |
| Capacitive Touch Sensing Unit (CTSU) | 27-electrode support with noise immunity tuning - achieves robust touch detection through plastic overlays up to 5 mm thick. |
| Secure Crypto Engine 5 (SCE5) | AES128/256 acceleration at <100 cycles/byte with key isolation - enables secure boot verification and encrypted firmware updates in under 50 ms. |
| Low-Power Analog Comparator (ACMPLP) | Dual comparators with programmable response speed and internal 8-bit DAC reference - supports battery-level monitoring and wake-on-threshold events. |
Applications
| Industrial HMI Panel | Smart Thermostat Display |
|---|---|
Use Scenario: A wall-mounted HVAC controller with segmented LCD, capacitive buttons, and local temperature/humidity sensing. IC Role / Device Role / Timing Role: R7FA4M1AB3CNE#AA0 serves as the primary HMI controller, managing display refresh, touch decoding, sensor ADC sampling, and USB configuration updates. Use Value: Integrated SLCDC and CTSU eliminate two external ICs; 48-MHz Cortex-M4 ensures sub-10-ms touch-to-display response with concurrent USB servicing. | Use Scenario: Battery-powered residential thermostat with 7-segment LCD, ambient temperature sensing, and BLE co-processor interface. IC Role / Device Role / Timing Role: R7FA4M1AB3CNE#AA0 acts as the main system controller, handling LCD drive, touch input, ADC-based temperature acquisition, and RTC-backed scheduling. Use Value: Ultra-low-power sleep modes (<1.5 μA in deep standby) combined with VBATT backup extend battery life beyond 2 years; 1.6-V minimum VCC enables operation down to near-dead battery. |
| Programmable Logic Controller (PLC) I/O Module | Medical Patient Monitor Front Panel |
Use Scenario: DIN-rail mounted PLC module with analog input conditioning, digital I/O, and USB programming port. IC Role / Device Role / Timing Role: R7FA4M1AB3CNE#AA0 functions as the local intelligence unit, executing ladder logic, digitizing analog signals, and providing USB CDC interface for configuration. Use Value: 14-bit ADC with internal reference and temperature sensor enables ±0.1% full-scale accuracy; USBFS with Battery Charging 1.2 supports field reprogramming via standard USB cables. | Use Scenario: Bedside patient monitor with segmented status display, touch-sensitive soft keys, and ECG signal preprocessing. IC Role / Device Role / Timing Role: R7FA4M1AB3CNE#AA0 manages front-panel HMI, acquires analog sensor data (temp, SpO₂), and performs real-time filtering before forwarding to host processor. Use Value: Dual OPAMPs and ACMPLP enable analog front-end signal conditioning; ECC-protected SRAM ensures data integrity during critical alarm processing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA4M1AB3CFM | 64-pin LQFP package, 49 GPIOs, 25-channel ADC, 27-CTSU electrodes - larger footprint but higher I/O count and same core/peripheral set. | Preferred where board space allows larger package and additional GPIOs are needed for expanded sensor or relay control. | Select R7FA4M1AB3CFM when >33 GPIOs or >25 ADC channels are required; R7FA4M1AB3CNE#AA0 remains optimal for space-constrained 48-pin designs. |
| R7FA2E1A93CFM | Arm Cortex-M23 core, 48 MHz, 128-KB flash, no SLCDC/CTSU, USB FS only - lower cost, reduced HMI capability, no hardware crypto engine. | Suitable for non-display, non-touch applications requiring basic connectivity and lower security requirements. | Choose R7FA2E1A93CFM for cost-sensitive, non-HMI roles; R7FA4M1AB3CNE#AA0 is mandatory when integrated touch+LCD or SCE5 crypto is required. |
Compared with R7FA4M1AB3CFM, R7FA4M1AB3CNE#AA0 offers identical core/peripheral functionality in a smaller 48-pin QFN but trades 16 GPIOs and 2 CTSU electrodes for board-area savings. Against R7FA2E1A93CFM, R7FA4M1AB3CNE#AA0 delivers superior HMI integration, hardware crypto, and analog precision at higher unit cost.
Availability
R7FA4M1AB3CNE#AA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart thermostats, and medical front-end displays requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R7FA4M1AB3CNE#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, including R7FA4M1AB3CNE#AA0, is designed for low-power, high-integration human-machine interface applications-emphasizing embedded display control, capacitive touch, USB connectivity, and hardware security in resource-constrained environments.
FAQ
What is the maximum operating frequency of the R7FA4M1AB3CNE#AA0?
The R7FA4M1AB3CNE#AA0 operates at a maximum frequency of 48 MHz using its Arm Cortex-M4 core with FPU. This frequency is achievable across the full -40°C to +105°C temperature range when supplied with 1.6–5.5 V. The HOCO oscillator supports 48 MHz directly, and the PLL can also generate this frequency from lower-speed sources like the SOSC.
Does the R7FA4M1AB3CNE#AA0 support USB device mode with integrated transceiver?
Yes, the R7FA4M1AB3CNE#AA0 includes a USB 2.0 Full-Speed Module (USBFS) with an on-chip transceiver and integrated 3.3-V LDO regulator. It supports USB device mode (and host mode) compliant with USB Specification 2.0, including Battery Charging Specification 1.2. No external PHY or level-shifting components are required for standard USB device operation.
How many capacitive touch electrodes does the R7FA4M1AB3CNE#AA0 support?
The R7FA4M1AB3CNE#AA0 supports up to 27 capacitive touch sensing electrodes via its integrated Capacitive Touch Sensing Unit (CTSU). This matches the full CTSU capability of the RA4M1 Group superset and is confirmed in Table 1.14 of the datasheet for the 48-pin variants including R7FA4M1AB3CNE#AA0.
What memory protection mechanisms are implemented in the R7FA4M1AB3CNE#AA0?
The R7FA4M1AB3CNE#AA0 implements multiple memory protection layers: Arm MPU with 8 configurable regions, SRAM partitioned into 16-KB ECC-protected and 16-KB parity-protected sections, flash area protection registers, and register write protection. These features collectively prevent unauthorized access, detect memory corruption, and enforce privilege separation in safety-critical firmware.
Is the R7FA4M1AB3CNE#AA0 pin-compatible with other RA4M1 family members?
No, the R7FA4M1AB3CNE#AA0 is not pin-compatible with other RA4M1 variants due to its 48-pin QFN package, whereas other members use 100-pin LQFP/LGA, 64-pin LQFP/QFN, or 40-pin QFN. Pin functions are shared across the family, but physical layout, pin count, and I/O mapping differ. Migration requires PCB redesign, though software is largely portable due to Renesas' Flexible Software Package (FSP) compatibility.
R7FA4M1AB3CNE#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-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:
- 31
- 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 14x14b SAR; D/A 2x8b, 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA4M1AB3CNE#AA0 FAQ
1.How can I place an order for R7FA4M1AB3CNE#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA4M1AB3CNE#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 R7FA4M1AB3CNE#AA0 reliable?
The price and inventory of R7FA4M1AB3CNE#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA4M1AB3CNE#AA0 is usually 5 days.
3.What payment methods are accepted for R7FA4M1AB3CNE#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA4M1AB3CNE#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA4M1AB3CNE#AA0?
R7FA4M1AB3CNE#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA4M1AB3CNE#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 R7FA4M1AB3CNE#AA0?
For technical support, including R7FA4M1AB3CNE#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA4M1AB3CNE#AA0 requirements.
6.How does Aetrix verify that R7FA4M1AB3CNE#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FA4M1AB3CNE#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 R7FA4M1AB3CNE#AA0 meets industry standards.
7.What is the process for return or replacement of R7FA4M1AB3CNE#AA0?
All R7FA4M1AB3CNE#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA4M1AB3CNE#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 R7FA4M1AB3CNE#AA0 part is unused and in its original packaging.
Return procedure for R7FA4M1AB3CNE#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA4M1AB3CNE#AA0 Tags
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