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Renesas R7FA4M1AB3CFL#BA0
- Part No.:
- R7FA4M1AB3CFL#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R7FA4M1AB3CFL#BA0.pdf
- Description:
- MCU RA4 ARM CM4 48MHZ 256K/32K Q
- Quantity:
- Payment:
- Shipping:
Inventory:2,520
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Product details
Overview
R7FA4M1AB3CFL#BA0 from Renesas 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 AES/SHA security engine - designed for low-power human-machine interface applications such as smart thermostats and industrial control panels.
For engineers reviewing the R7FA4M1AB3CFL#BA0 datasheet, R7FA4M1AB3CFL#BA0 pinout, R7FA4M1AB3CFL#BA0 application, or R7FA4M1AB3CFL#BA0 equivalent, key selection criteria include its 48-pin LQFP package, -40°C to +105°C operating range, 1.6–5.5 V supply, dual watchdog timers (WDT/IWDT), and support for capacitive touch + segment LCD driving without external controllers.
Technical Context
This MCU implements an Armv7E-M architecture with DSP extensions and single-precision FPU, enabling real-time signal processing in motor control and audio applications. It integrates a dedicated Secure Crypto Engine 5 (SCE5) supporting AES128/256, GHASH, and TRNG for secure firmware updates and data encryption.
The RA4M1 group uses a unified peripheral set across pin-compatible variants, with this part featuring two AGT timers for low-power event timing, four operational amplifiers for sensor signal conditioning, and a 14-bit ADC with up to 11 input channels - all optimized for battery-backed HMI systems requiring RTC calendar mode and VBATT switchover.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 48 MHz max - enables deterministic real-time control and floating-point math for sensor fusion. |
| Memory | 256-KB code flash + 8-KB data flash + 32-KB SRAM - supports field-upgradable firmware and parameter storage with ECC/parity protection. |
| Analog Peripherals | 14-bit ADC (11 ch), 12-bit DAC, 2× ACMPLP, 4× OPAMP, TSN - allows precision analog sensing and closed-loop control without external signal chain ICs. |
| Human Interface | Segment LCD Controller (up to 34×8 seg), CTSU (10 electrodes) - drives multiplexed LCDs and detects touch on buttons/sliders with no external controller. |
| Connectivity | USB 2.0 FS (with on-chip transceiver), CAN 2.0B, 4× SCI, 2× I2C, 2× SPI, SSIE - provides robust wired communication for industrial and automotive subsystems. |
| Power & Safety | 1.6–5.5 V operation, -40°C to +105°C, WDT/IWDT, CAC, CRC, DOC, register write protection - ensures reliability in harsh environments with fail-safe monitoring. |
| Package | 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch) - surface-mount compatible with standard reflow profiles and accessible routing for compact PCBs. |
Pinout & Package
48-pin LQFP (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 reference - requires local 0.1-μF decoupling per VCC pin. |
| XTAL / EXTAL | Main clock oscillator interface | Supports 1–20 MHz crystal or external clock source - enables precise timing for USB and RTC synchronization. |
| MD | Operating mode select | Configures boot mode (single-chip vs. SCI/USB) at reset - must remain stable during startup to avoid misconfiguration. |
| RES | Reset input | Active-low asynchronous reset - initiates full system initialization including memory protection unit and clock recovery. |
| SWDIO / SWCLK | Debug interface | Serial Wire Debug pins - enable non-intrusive programming, breakpoint debugging, and real-time trace via J-Link or CMSIS-DAP tools. |
| GTIOC0A–GTIOC7A | GPT16 channel I/O | Programmable input capture, output compare, or PWM outputs - used for motor phase control, encoder counting, or LED dimming. |
| CTSU0–CTSU9 | Capacitive touch inputs | 10 dedicated CTSU electrode pins - support self- and mutual-capacitance measurement for up to 10 independent touch keys or sliders. |
| SEG0–SEG33 / COM0–COM7 | SLCDC segment/common drivers | Drives up to 34 segments × 8 commons - eliminates need for external LCD driver IC in thermostat or appliance displays. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Segment LCD + Touch | SLCDC and CTSU share internal resources to drive multiplexed LCDs and detect touch simultaneously - reduces BOM cost and board space by eliminating discrete display/touch controllers. |
| Hardware Security Engine | SCE5 accelerates AES128/256 encryption, GHASH, and TRNG - enables secure boot, encrypted OTA updates, and tamper-resistant key storage without CPU overhead. |
| Battery-Backed Real-Time Clock | RTC with calendar mode (2000–2099), VBATT switchover, and 512-byte backup registers - maintains time/date and critical settings during main power loss. |
| Low-Power Analog Subsystem | 14-bit ADC with selectable resolution, 2× ACMPLP with programmable speed, 4× OPAMP - supports high-accuracy sensor interfaces while minimizing active current draw. |
| Event-Driven Architecture | ELC links peripherals (e.g., ADC completion → DMAC transfer → CRC calculation) without CPU intervention - cuts active power and improves deterministic response latency. |
Applications
| Smart Thermostat Display | Industrial HMI Panel |
|---|---|
Use Scenario: A wall-mounted HVAC controller with segmented LCD display and capacitive touch buttons operating continuously on AC power with battery backup. IC Role / Device Role / Timing Role: R7FA4M1AB3CFL#BA0 serves as the primary HMI controller, managing LCD refresh, touch detection, temperature sensor reading, and USB configuration updates. Use Value: Integrated SLCDC and CTSU eliminate external driver ICs; RTC with VBATT ensures accurate scheduling and time-of-use billing even during power outages. | Use Scenario: A factory-floor machine status panel with segmented display, touch navigation, and CAN bus connectivity to PLCs and sensors. IC Role / Device Role / Timing Role: R7FA4M1AB3CFL#BA0 acts as the local HMI node, handling display rendering, user input, CAN message filtering, and fault logging to data flash. Use Value: CAN 2.0B interface enables direct integration into industrial networks; 105°C rating ensures reliable operation near motors and power electronics. |
| Portable Medical Device UI | Energy Meter Front-End |
Use Scenario: A handheld blood glucose monitor with LCD readout, touch interface, and USB data export to clinic PCs. IC Role / Device Role / Timing Role: R7FA4M1AB3CFL#BA0 functions as the system-on-chip UI controller, performing ADC sampling of test strip signals, touch decoding, and USB mass storage emulation. Use Value: 14-bit ADC provides sufficient resolution for biosensor signal digitization; SCE5 secures patient data before USB transfer. | Use Scenario: A DIN-rail mounted electricity meter with LCD display, tamper detection, and isolated RS-485/CAN communication to utility gateways. IC Role / Device Role / Timing Role: R7FA4M1AB3CFL#BA0 manages LCD content, performs real-time energy calculations using DTC-assisted ADC reads, and handles secure firmware updates over CAN. Use Value: DTC and ELC offload CPU during high-frequency sampling; data flash endurance (100k P/E cycles) supports decade-long meter calibration log retention. |
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, 25 ADC channels, 2× SSIE, 2× CAN - larger package and enhanced analog/audio capability. | Required when more ADC inputs, dual CAN buses, or audio codec interfacing (SSIE) are needed. | Select for designs needing higher I/O count or dual CAN redundancy; not pin-compatible with R7FA4M1AB3CFL#BA0. |
| R7FA2E1A93CFK#AA0 | Arm Cortex-M23 core, 48 MHz, 128-KB flash, 16-KB SRAM, no CTSU/SLCDC, lower security (SCE4), 40-pin QFN. | Targeted at cost-sensitive, non-HMI applications where LCD/touch are unnecessary and basic crypto suffices. | Choose for simpler control tasks without display/touch; lacks integrated HMI features of R7FA4M1AB3CFL#BA0. |
Compared with R7FA4M1AB3CFM#AA0, R7FA4M1AB3CFL#BA0 trades I/O and peripheral count for compact 48-pin packaging and HMI-optimized integration; versus R7FA2E1A93CFK#AA0, it delivers superior analog front-end, full SCE5 security, and complete HMI subsystems - making it the only option among the three with native segment LCD + capacitive touch support.
Availability
R7FA4M1AB3CFL#BA0 is available at Aetrix Electronics and suitable for smart thermostats, industrial HMI panels, portable medical devices, and energy meters requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for R7FA4M1AB3CFL#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 Corporation is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RA4M1 Group is designed for low-power, high-integration HMI applications - combining Arm Cortex-M4 performance with built-in LCD/touch controllers, USB, CAN, and hardware security to accelerate development of intelligent edge devices.
FAQ
What is the maximum operating frequency of the R7FA4M1AB3CFL#BA0?
The R7FA4M1AB3CFL#BA0 operates at a maximum frequency of 48 MHz using its Arm Cortex-M4 core with FPU. This speed is achievable across its full 1.6–5.5 V supply range and -40°C to +105°C temperature grade, supported by multiple on-chip oscillators including HOCO (48 MHz) and PLL.
Does the R7FA4M1AB3CFL#BA0 support capacitive touch sensing?
Yes, the R7FA4M1AB3CFL#BA0 includes a dedicated Capacitive Touch Sensing Unit (CTSU) supporting up to 10 electrodes. It performs self-capacitance measurements with hardware-accelerated scanning, enabling robust touch button, slider, or wheel implementation without external components - a core feature of the RA4M1 Group's HMI focus.
What package type and pin count does the R7FA4M1AB3CFL#BA0 use?
The R7FA4M1AB3CFL#BA0 uses a 48-pin LQFP package (7 mm × 7 mm, 0.5 mm pitch), as confirmed by Renesas' part numbering scheme ('FL' = LQFP 48 pins) and datasheet Table 1.13. This variant provides 33 GPIO, 4 5-V-tolerant pins, and full access to its HMI peripherals including SLCDC and CTSU.
Can the R7FA4M1AB3CFL#BA0 drive a segment LCD display directly?
Yes, the R7FA4M1AB3CFL#BA0 integrates a Segment LCD Controller (SLCDC) capable of driving up to 34 segments × 8 commons. It includes internal voltage boosting, contrast adjustment (16-step reference), and automatic waveform generation - allowing direct connection to passive segment LCDs without external driver ICs or external bias supplies.
What security features are implemented in the R7FA4M1AB3CFL#BA0?
The R7FA4M1AB3CFL#BA0 includes Renesas' Secure Crypto Engine 5 (SCE5), providing hardware-accelerated AES128/256 encryption/decryption, GHASH authentication, and True Random Number Generation (TRNG). These features enable secure boot, encrypted firmware updates, and protected key storage - critical for certified medical and industrial deployments.
Is USB functionality available on the R7FA4M1AB3CFL#BA0?
Yes, the R7FA4M1AB3CFL#BA0 integrates a USB 2.0 Full-Speed Module (USBFS) with an on-chip transceiver and 3.3-V LDO regulator. It supports device mode (including USB Battery Charging Specification 1.2), has 10 configurable pipes, and can be used for CDC, HID, or mass storage class implementations - verified in Section 27 of the R01DS0355EJ0110 datasheet.
R7FA4M1AB3CFL#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- RA4M1
- Packaging:
- Tray
- 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#BA0 FAQ
1.How can I place an order for R7FA4M1AB3CFL#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA4M1AB3CFL#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 R7FA4M1AB3CFL#BA0 reliable?
The price and inventory of R7FA4M1AB3CFL#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA4M1AB3CFL#BA0 is usually 5 days.
3.What payment methods are accepted for R7FA4M1AB3CFL#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA4M1AB3CFL#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA4M1AB3CFL#BA0?
R7FA4M1AB3CFL#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA4M1AB3CFL#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 R7FA4M1AB3CFL#BA0?
For technical support, including R7FA4M1AB3CFL#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA4M1AB3CFL#BA0 requirements.
6.How does Aetrix verify that R7FA4M1AB3CFL#BA0 is sourced from the original manufacturer or authorized distributors?
All R7FA4M1AB3CFL#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 R7FA4M1AB3CFL#BA0 meets industry standards.
7.What is the process for return or replacement of R7FA4M1AB3CFL#BA0?
All R7FA4M1AB3CFL#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA4M1AB3CFL#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 R7FA4M1AB3CFL#BA0 part is unused and in its original packaging.
Return procedure for R7FA4M1AB3CFL#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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