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Renesas R7FA4M1AB3CFL#AA0
- Part No.:
- R7FA4M1AB3CFL#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R7FA4M1AB3CFL#AA0.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:7,566
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Product details
Overview
R7FA4M1AB3CFL#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, 14-bit ADC, 12-bit DAC, Segment LCD Controller, Capacitive Touch Sensing Unit, and CAN interface - designed for low-power industrial HMI and battery-backed metering applications.
For engineers reviewing the R7FA4M1AB3CFL#AA0 datasheet, R7FA4M1AB3CFL#AA0 pinout, R7FA4M1AB3CFL#AA0 application, or R7FA4M1AB3CFL#AA0 equivalent, key selection criteria include its 48-pin LQFP package, -40°C to +105°C operating range, integrated SCE5 crypto engine, RTC with battery backup, and dual AGT timers for ultra-low-power wake-up timing.
Technical Context
The R7FA4M1AB3CFL#AA0 implements an Armv7E-M architecture with DSP extensions and single-precision FPU, supporting deterministic real-time control in motor drives and sensor fusion. Its memory subsystem includes ECC-protected SRAM (16 KB), 8-KB data flash with 100,000 P/E cycles, and Flash Cache for instruction throughput at 48 MHz.
System-level integration includes Event Link Controller (ELC) for CPU-free peripheral chaining, four-channel DMAC plus DTC for autonomous data movement, and dual watchdogs (WDT + IWDT) with independent clock sources - enabling fail-safe operation in safety-aware industrial nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4 with FPU, 48 MHz max - enables real-time signal processing and floating-point math without external coprocessor. |
| Memory | 256-KB code flash + 8-KB data flash + 32-KB SRAM (16 KB ECC, 16 KB parity) - supports firmware updates, parameter storage, and robust runtime data handling. |
| Analog Peripherals | 14-bit ADC (25 ch), 12-bit DAC, 2× ACMPLP, 4× OPAMP, TSN - allows high-accuracy sensor acquisition and analog actuation in compact systems. |
| Connectivity | USB 2.0 FS (with on-chip transceiver & BC 1.2), CAN 2.0B, 4× SCI, 2× I2C, 2× SPI, SSIE - provides mixed-signal device connectivity across industrial, automotive, and audio interfaces. |
| HMI Support | Segment LCD Controller (38×4 or 34×8), CTSU (27 electrodes) - enables direct drive of segmented displays and capacitive touch panels without external controllers. |
| Power & Timing | VCC = 1.6–5.5 V; -40°C to +105°C; RTC with calendar mode & battery backup; AGT ×2 for sub-μA wake-up timing - ensures operation in wide-voltage, harsh-temperature environments with long battery life. |
| Security | SCE5 with AES128/256, GHASH, TRNG - delivers hardware-accelerated encryption and true entropy for secure boot and OTA updates. |
Pinout & Package
Package: 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant Sn terminal 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 reference - requires local 0.1-μF decoupling per VCC pin. |
| XTAL / EXTAL | Main oscillator input | Supports 1–20 MHz crystal or external clock - enables precise timing for USB, CAN, and RTC synchronization. |
| XCIN / XCOUT | Sub-clock oscillator | 32.768 kHz crystal interface for RTC calendar mode and low-power wake-up - retains time during deep sleep using VBATT. |
| RES | Reset input | Active-low asynchronous reset - initiates full system initialization including register write protection and MPU configuration. |
| SWDIO / SWCLK | Debug interface | 2-pin Serial Wire Debug - enables non-intrusive programming, real-time trace, and memory inspection without halting execution. |
| GTIOC0A–GTIOC7A | GPT16 channel I/O | Configurable as input capture, output compare, or PWM output - supports brushless DC motor control with complementary outputs and dead-time insertion. |
| CTSU0–CTSU26 | Capacitive touch sense | 27 dedicated CTSU electrode pins - enables multi-touch button/slider detection with noise immunity via spread-spectrum modulation. |
| SLCD0–SLCD37 | Segment LCD driver | 38 segment outputs + 4 commons - drives up to 152-segment displays directly with internal voltage boosting and contrast control. |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Enables hardware-triggered peripheral-to-peripheral data flow (e.g., ADC conversion → DMA → USB transmit) without CPU intervention - reduces latency and active power by >40% in sensor logging. |
| Secure Crypto Engine 5 (SCE5) | Hardware-accelerated AES-128/256 encryption, GHASH authentication, and TRNG entropy source - meets IEC 62443-3-3 SL2 requirements for secure firmware updates. |
| Low-Power Asynchronous Timers (AGT ×2) | 16-bit timers running from LOCO (32.768 kHz) during deep sleep - provide precise wake-up intervals down to 30.5 μs resolution with <1 μA current draw. |
| USB Battery Charging 1.2 Support | On-chip USB transceiver with integrated 3.3-V LDO - enables direct connection to USB wall adapters and charging ports without external power management ICs. |
| Realtime Clock with Calendar Mode | 100-year Gregorian calendar (2000–2099) with leap-year correction and battery-backed retention - eliminates need for external RTC IC in energy meters and HVAC controllers. |
Applications
| Industrial HMI Panel | Smart Energy Meter |
|---|---|
Use Scenario: A 4-inch segmented LCD display with 12 tactile buttons and backlight control in a factory floor operator interface. IC Role / Device Role / Timing Role: R7FA4M1AB3CFL#AA0 serves as main controller - driving SLCDC, scanning CTSU electrodes, managing USB-CDC communication, and executing real-time alarm logic via GPT32. Use Value: Integrated SLCDC and CTSU eliminate 3 external ICs; 48-MHz Cortex-M4 processes touch debounce and display refresh in <1 ms, ensuring responsive UI under EMI stress. | Use Scenario: DIN-rail mounted electricity meter with kWh accumulation, tamper detection, and remote firmware update over USB or CAN. IC Role / Device Role / Timing Role: R7FA4M1AB3CFL#AA0 acts as metering SoC - sampling ADC14 at 10 kSPS, timestamping events via RTC+VBATT, signing firmware images with SCE5, and communicating via CAN bus. Use Value: ECC SRAM prevents data corruption during voltage dips; 100,000-cycle data flash stores tariff tables and calibration coefficients for >15 years of field operation. |
| BLDC Motor Control Module | Portable Medical Sensor Hub |
Use Scenario: Compact 24-V fan controller with Hall-effect commutation, thermal monitoring, and USB diagnostics. IC Role / Device Role / Timing Role: R7FA4M1AB3CFL#AA0 executes field-oriented control (FOC) - reading GTIU/GTIV/GTIW, generating 3-phase PWM on GTOUUP/GTOULO etc., and regulating speed via DAC12 feedback. Use Value: Dual GPT32 timers deliver synchronized 20-kHz PWM with <50-ns phase alignment; OPAMPs condition Hall sensor signals on-chip, removing external op-amp stage. | Use Scenario: Handheld pulse oximeter with SpO₂ sensor, OLED display, Bluetooth bridge, and rechargeable Li-ion battery. IC Role / Device Role / Timing Role: R7FA4M1AB3CFL#AA0 performs analog front-end conditioning (ADC14 + OPAMP), calculates saturation algorithms, manages battery gauge via LVD, and handles USB charging negotiation. Use Value: Integrated USBFS with BC 1.2 support enables simultaneous charging and data transfer; low-power AGT timers extend battery life to >72 hours between charges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA4M1AB3CFM#AA0 | 64-pin LQFP, 49 GPIO, 2× SSIE, 4× SCI, 2× I2C - adds 17 more I/O and second SSIE channel. | Preferred for designs requiring dual audio interfaces or expanded peripheral routing. | Select when board layout allows larger footprint and additional serial audio paths are needed. |
| R7FA4M1AB3CNE#AA0 | 48-pin QFN (8 mm × 8 mm, 0.4 mm pitch), identical memory/peripherals but different thermal profile and no exposed pad. | Better suited for space-constrained PCBs with automated optical inspection constraints. | Choose for high-density layouts where LQFP lead visibility impedes AOI; verify thermal dissipation with 0.4-mm pitch. |
Compared with R7FA4M1AB3CFL#AA0, the R7FA4M1AB3CFM#AA0 offers greater I/O scalability at the cost of board area, while R7FA4M1AB3CNE#AA0 maintains identical functionality in a smaller QFN package - enabling design reuse across form factors without firmware changes.
Availability
R7FA4M1AB3CFL#AA0 is available at Aetrix Electronics and suitable for industrial HMI, smart metering, BLDC motor control, and portable medical devices requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for R7FA4M1AB3CFL#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 - founded in 2010 through the merger of NEC Electronics and Renesas Technology.
The RA4M1 Group, which includes R7FA4M1AB3CFL#AA0, was engineered specifically for low-power, high-integration industrial HMI and metering applications - emphasizing security, analog precision, and seamless USB/CAN connectivity in compact packages.
FAQ
What is the maximum operating frequency and core architecture of the R7FA4M1AB3CFL#AA0?
The R7FA4M1AB3CFL#AA0 features an Arm Cortex-M4 core with Floating Point Unit (FPU), operating at a maximum frequency of 48 MHz. It implements the Armv7E-M architecture with DSP instruction set and Arm Memory Protection Unit (MPU) supporting 8 memory regions. This architecture enables deterministic real-time performance for motor control, sensor fusion, and cryptographic operations within the R7FA4M1AB3CFL#AA0.
Does the R7FA4M1AB3CFL#AA0 support USB device functionality with battery charging capability?
Yes, the R7FA4M1AB3CFL#AA0 integrates a USB 2.0 Full-Speed Module (USBFS) that operates as both host and device, with an on-chip transceiver and integrated 3.3-V LDO regulator. It complies with USB Battery Charging Specification 1.2, enabling direct connection to standard USB chargers for power delivery and data transfer - a key feature confirmed in the R01DS0355EJ0110 datasheet for the R7FA4M1AB3CFL#AA0.
What analog peripherals are included in the R7FA4M1AB3CFL#AA0 and how are they applied?
The R7FA4M1AB3CFL#AA0 includes a 14-bit ADC (25 channels), 12-bit DAC, two 8-bit DACs for analog comparators, two low-power analog comparators (ACMPLP), four operational amplifiers (OPAMP), and an on-die temperature sensor (TSN). These enable high-fidelity sensor signal conditioning, closed-loop control actuation, and self-diagnostic functions - all verified in the R7FA4M1AB3CFL#AA0's datasheet sections 35–40 and used in applications like energy metering and motor control.
How does the R7FA4M1AB3CFL#AA0 handle low-power operation and real-time clock functionality?
The R7FA4M1AB3CFL#AA0 supports multiple low-power modes, including deep sleep with RTC and AGT timers running from the 32.768-kHz sub-clock oscillator. Its RTC provides calendar mode (2000–2099) with leap-year correction and battery backup via VBATT pin - retaining time and date during main power loss. This behavior is documented in section 24 of the R7FA4M1AB3CFL#AA0 User's Manual and validated for use in smart meters and portable devices.
What security features are implemented in the R7FA4M1AB3CFL#AA0 and how are they utilized?
The R7FA4M1AB3CFL#AA0 integrates Secure Crypto Engine 5 (SCE5), providing hardware-accelerated AES-128/256 encryption, GHASH authentication, and a True Random Number Generator (TRNG). These features support secure boot, encrypted firmware updates, and TLS stack acceleration - meeting IEC 62443-3-3 SL2 requirements. All SCE5 capabilities are explicitly specified for the R7FA4M1AB3CFL#AA0 in the R01DS0355EJ0110 datasheet section 1.11.
R7FA4M1AB3CFL#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- 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 1x8b, 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA4M1AB3CFL#AA0 FAQ
1.How can I place an order for R7FA4M1AB3CFL#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA4M1AB3CFL#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 R7FA4M1AB3CFL#AA0 reliable?
The price and inventory of R7FA4M1AB3CFL#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA4M1AB3CFL#AA0 is usually 5 days.
3.What payment methods are accepted for R7FA4M1AB3CFL#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA4M1AB3CFL#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA4M1AB3CFL#AA0?
R7FA4M1AB3CFL#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA4M1AB3CFL#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 R7FA4M1AB3CFL#AA0?
For technical support, including R7FA4M1AB3CFL#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA4M1AB3CFL#AA0 requirements.
6.How does Aetrix verify that R7FA4M1AB3CFL#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FA4M1AB3CFL#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 R7FA4M1AB3CFL#AA0 meets industry standards.
7.What is the process for return or replacement of R7FA4M1AB3CFL#AA0?
All R7FA4M1AB3CFL#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA4M1AB3CFL#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 R7FA4M1AB3CFL#AA0 part is unused and in its original packaging.
Return procedure for R7FA4M1AB3CFL#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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