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Renesas R7FA4M1AB3CFL#HA0
- Part No.:
- R7FA4M1AB3CFL#HA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R7FA4M1AB3CFL#HA0.pdf
- Description:
- MCU RA4 ARM CM4 48MHZ 256K/32K Q
- Quantity:
- Payment:
- Shipping:
Inventory:3,461
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Product details
Overview
R7FA4M1AB3CFL#HA0 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, and Capacitive Touch Sensing Unit - designed for low-power HMI applications such as smart thermostats and industrial control panels.
For engineers reviewing the R7FA4M1AB3CFL#HA0 datasheet, R7FA4M1AB3CFL#HA0 pinout, R7FA4M1AB3CFL#HA0 application, or R7FA4M1AB3CFL#HA0 equivalent, key selection criteria include its 48-pin LQFP package, -40°C to +105°C operating range, integrated CTSU/SLCDC for touch+LCD interfaces, USB Battery Charging 1.2 compliance, and dual watchdog timers (WDT/IWDT) for functional safety-critical firmware.
Technical Context
The R7FA4M1AB3CFL#HA0 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), 8-KB data flash with 100,000 P/E cycles, and Flash Cache for instruction fetch acceleration.
System-level features include Event Link Controller (ELC) for CPU-free peripheral coordination, Data Transfer Controller (DTC) and 4-channel DMAC for zero-CPU data movement, and Security Crypto Engine 5 (SCE5) with AES128/256, GHASH, and TRNG - enabling secure boot and encrypted communication in resource-constrained edge nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU 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 (16 KB ECC, 16 KB parity) - supports robust firmware updates and runtime data logging. |
| Analog Peripherals | 14-bit ADC (11 channels), 12-bit DAC (1 channel), 2× ACMPLP, 4× OPAMP, TSN - sufficient for precision temperature monitoring and analog signal conditioning. |
| Human Interface | Segment LCD Controller (up to 34×8 segments), CTSU (15 electrodes) - directly drives segmented displays and detects multi-touch buttons without external ICs. |
| Connectivity | USB 2.0 FS (with on-chip transceiver & Battery Charging 1.2), CAN 2.0B, 4× SCI, 2× I2C, 2× SPI, SSIE - enables local HMI + fieldbus + audio interface in one chip. |
| Timers & Safety | GPT32×2, GPT16×4, AGT×2, RTC, WDT/IWDT, CAC, CRC, DOC - meets IEC 61508 SIL-2 requirements for diagnostics and time-critical control loops. |
| Power & Package | VCC = 1.6–5.5 V; -40°C to +105°C; 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch); 33 I/O pins (4× 5-V tolerant) - suitable for industrial environments with wide supply and temperature margins. |
Pinout & Package
Package: 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant Sn (tin) 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 for all analog/digital sections. |
| XTAL / EXTAL | Main clock oscillator interface | Supports 1–20 MHz crystal; enables precise timing for USB, RTC, and high-accuracy ADC sampling. |
| MD | Operating mode select | Configures single-chip vs. SCI/USB boot mode at reset - critical for firmware recovery and field updates. |
| RES | Reset input | Active-low asynchronous reset pin; initiates full system initialization including register write protection and MPU setup. |
| SWDIO / SWCLK | Serial Wire Debug interface | Enables non-intrusive debug, flash programming, and real-time trace via standard ARM CoreSight infrastructure. |
| GTIOC0A–GTIOC3A | PWM output capture | Four dedicated timer I/O pins for brushless DC motor control - support complementary PWM with dead-time insertion via POEG. |
| CTSU0–CTSU14 | Capacitive touch sense inputs | 15 dedicated CTSU electrode pins - enable robust proximity/touch detection through overlay materials (glass, plastic). |
| SEG0–SEG33 / COM0–COM7 | Segment LCD driver outputs | Drives up to 34 segments × 8 commons - eliminates need for external LCD bias generator or segment drivers. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Segment LCD + CTSU | Reduces BOM count by eliminating separate LCD controller and touch IC - lowers system cost and PCB area in appliance HMIs. |
| USB Battery Charging 1.2 Support | Enables direct charging of connected devices (e.g., Bluetooth modules) without external charge management IC. |
| ECC-Protected SRAM (16 KB) | Prevents silent data corruption in safety-critical variables (e.g., motor control states, fault flags) - required for IEC 61508 compliance. |
| Event Link Controller (ELC) | Allows hardware-triggered peripheral chaining (e.g., ADC conversion completion → DMA transfer → CRC calculation) without CPU intervention. |
| Secure Crypto Engine 5 (SCE5) | Hardware-accelerated AES128/256 and TRNG offloads encryption tasks from CPU - improves OTA update security and reduces latency. |
Applications
| Smart Thermostat Control Panel | Industrial PLC HMI Module |
|---|---|
Use Scenario: Wall-mounted HVAC controller with segmented LCD display, capacitive touch buttons, and USB configuration port. IC Role / Device Role / Timing Role: Primary MCU executing UI logic, driving LCD segments, scanning touch electrodes, and handling USB CDC communications. Use Value: Single-chip integration of SLCDC+CTSU+USBFS eliminates 3 external ICs, reducing bill-of-materials cost by ~$1.20/unit at volume. | Use Scenario: DIN-rail mounted HMI module for factory floor equipment with CAN bus connectivity and real-time status display. IC Role / Device Role / Timing Role: Real-time HMI processor managing CAN message parsing, RTC-based event logging, and segmented display refresh at 4 Hz. Use Value: Built-in CAN 2.0B controller and ECC SRAM enable deterministic response to fieldbus commands while meeting industrial functional safety requirements. |
| Portable Medical Device Display | Energy Meter User Interface |
Use Scenario: Battery-powered glucose monitor with segmented LCD, touch navigation, and low-power sleep modes. IC Role / Device Role / Timing Role: System-on-chip managing ultra-low-power operation (<1.5 µA in deep sleep), touch wake-up, and LCD contrast control via internal voltage boost. Use Value: Integrated LDO, LOCO/SOSC RTC, and AGT timers allow sub-2 µA sleep current - extends battery life to >12 months on CR2032. | Use Scenario: Smart electricity meter with LCD display, tamper-detection touch keys, and isolated RS-485 communication via SCI. IC Role / Device Role / Timing Role: HMI controller interfacing with metrology IC via SPI, validating tamper events via ACMPLP, and updating LCD with tariff information. Use Value: Dual analog comparators (ACMPLP) detect enclosure opening via magnetic reed switch - provides Class I tamper evidence without external comparator IC. |
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 I/O pins; 24 CTSU electrodes; 21-segment LCD support | Better suited for designs requiring more GPIOs or larger touch surfaces | Select when additional I/O or expanded CTSU electrode count is needed; same core/peripheral set and firmware compatibility. |
| R7FA4M1AB3CNE | 48-pin QFN (8 mm × 8 mm, 0.4 mm pitch); identical memory/peripherals; same 33 I/O count | Preferred for space-constrained PCBs where thermal performance and footprint size are critical | Choose for compact, thermally demanding layouts; requires different land pattern but shares identical register map and firmware. |
Compared with R7FA4M1AB3CFL#HA0, the R7FA4M1AB3CFM offers greater I/O scalability for complex HMIs, while R7FA4M1AB3CNE delivers identical functionality in a smaller QFN package - both maintain full software compatibility and require no firmware changes.
Availability
R7FA4M1AB3CFL#HA0 is available at Aetrix Electronics and suitable for smart home controllers, industrial HMIs, portable medical devices, and energy meter user interfaces requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for R7FA4M1AB3CFL#HA0 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 RA4M1 Group targets cost-sensitive, low-power HMI applications - integrating LCD/CTSU/USB to reduce system complexity while maintaining Arm Cortex-M4 performance and functional safety features.
FAQ
What is the maximum operating frequency of the R7FA4M1AB3CFL#HA0?
The R7FA4M1AB3CFL#HA0 operates at a maximum frequency of 48 MHz using its Arm Cortex-M4 core with FPU. This frequency is achievable with the high-speed on-chip oscillator (HOCO) or external crystal (MOSC), and is supported across its full operating voltage range (1.6–5.5 V). The R7FA4M1AB3CFL#HA0 maintains this speed while executing DSP instructions and floating-point operations without throttling.
Does the R7FA4M1AB3CFL#HA0 support USB device functionality with battery charging?
Yes, the R7FA4M1AB3CFL#HA0 integrates a USB 2.0 Full-Speed Module compliant with USB Battery Charging Specification 1.2. It includes an on-chip transceiver and LDO regulator, enabling it to act as a USB device that supplies up to 1.5 A to attached peripherals. The R7FA4M1AB3CFL#HA0 handles BC1.2 enumeration and charging port detection entirely in hardware, requiring no external components.
How many capacitive touch electrodes does the R7FA4M1AB3CFL#HA0 support?
The R7FA4M1AB3CFL#HA0 supports 15 capacitive touch sensing electrodes via its integrated CTSU. This is confirmed in Table 1.14 of the datasheet for the 48-pin variants (R7FA4M1AB3CFL/R7FA4M1AB3CNE). The R7FA4M1AB3CFL#HA0 allocates dedicated CTSU0–CTSU14 pins, enabling robust touch button or slider implementation without external touch controllers.
What is the memory protection configuration of the R7FA4M1AB3CFL#HA0?
The R7FA4M1AB3CFL#HA0 implements dual-layer memory protection: an Arm Memory Protection Unit (MPU) with 8 configurable regions for code/data isolation, and hardware-enforced ECC on 16 KB of SRAM. The R7FA4M1AB3CFL#HA0 also includes flash area protection, register write protection, and illegal memory access detection - collectively supporting functional safety certification per IEC 61508.
Which package type and pin count does the R7FA4M1AB3CFL#HA0 use?
The R7FA4M1AB3CFL#HA0 uses a 48-pin LQFP package (7 mm × 7 mm, 0.5 mm pitch), designated by the "FL" in its part number per Renesas' numbering scheme. It provides 33 general-purpose I/O pins, 3 dedicated input-only pins, 4× 5-V tolerant pins, and supports operation from -40°C to +105°C - making it suitable for industrial and automotive cabin applications.
R7FA4M1AB3CFL#HA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- RA4M1
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M4F
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, SCI, SPI, UART/USART, USB
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 36
- 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:
R7FA4M1AB3CFL#HA0 FAQ
1.How can I place an order for R7FA4M1AB3CFL#HA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA4M1AB3CFL#HA0 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#HA0 reliable?
The price and inventory of R7FA4M1AB3CFL#HA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA4M1AB3CFL#HA0 is usually 5 days.
3.What payment methods are accepted for R7FA4M1AB3CFL#HA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA4M1AB3CFL#HA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA4M1AB3CFL#HA0?
R7FA4M1AB3CFL#HA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA4M1AB3CFL#HA0 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#HA0?
For technical support, including R7FA4M1AB3CFL#HA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA4M1AB3CFL#HA0 requirements.
6.How does Aetrix verify that R7FA4M1AB3CFL#HA0 is sourced from the original manufacturer or authorized distributors?
All R7FA4M1AB3CFL#HA0 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#HA0 meets industry standards.
7.What is the process for return or replacement of R7FA4M1AB3CFL#HA0?
All R7FA4M1AB3CFL#HA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA4M1AB3CFL#HA0, 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#HA0 part is unused and in its original packaging.
Return procedure for R7FA4M1AB3CFL#HA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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