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Renesas R7FA4M1AB3CFM#AA0
- Part No.:
- R7FA4M1AB3CFM#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R7FA4M1AB3CFM#AA0.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,160
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Product details
Overview
R7FA4M1AB3CFM#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.
For engineers reviewing the R7FA4M1AB3CFM#AA0 datasheet, R7FA4M1AB3CFM#AA0 pinout, R7FA4M1AB3CFM#AA0 application, or R7FA4M1AB3CFM#AA0 equivalent, key selection considerations include its 64-pin LQFP package, -40°C to +105°C operating range, 1.6–5.5 V supply, dual watchdog timers (WDT/IWDT), and support for battery-backed RTC with calendar mode.
Technical Context
The R7FA4M1AB3CFM#AA0 implements an Armv7E-M architecture with DSP extensions and single-precision FPU, enabling deterministic real-time signal processing. Its memory subsystem includes ECC-protected SRAM (16 KB) and parity-protected SRAM (16 KB), plus 8-KB data flash rated for 100,000 P/E cycles.
System-level features include Event Link Controller (ELC) for peripheral-to-peripheral event routing without CPU intervention, and a 4-channel DMAC with DTC for autonomous data movement. The MCU supports USB Battery Charging Specification 1.2 via its on-chip transceiver and LDO regulator, enabling direct 5-V-powered USB device operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4 @ 48 MHz with FPU and MPU (8 regions) |
| Memory | 256-KB code flash + 8-KB data flash + 32-KB SRAM (16 KB ECC, 16 KB parity) |
| Analog | 14-bit ADC (25 channels), 12-bit DAC, 2× ACMPLP, 4× OPAMP, TSN |
| Connectivity | USB 2.0 FS (with on-chip transceiver), CAN 2.0B, 4× SCI, 2× I2C, 2× SPI, SSIE |
| HMI | Segment LCD Controller (38×4 or 34×8), CTSU (27 electrodes) |
| Security | SCE5 with AES128/256, GHASH, TRNG, CRC calculator, DOC |
| Power & Temp | 1.6–5.5 V supply; -40°C to +105°C (64-pin LQFP package) |
Pinout & Package
Package: 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant Sn finish, rated for industrial temperature range (-40°C to +105°C).
| 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 |
| XTAL / EXTAL | Main clock oscillator interface | Supports 1–20 MHz crystal or external clock input for precise timing and USB synchronization |
| USB_VBUS / USB_DP / USB_DM | USB 2.0 Full-Speed interface | Integrated transceiver enables self-powered USB device operation; VBUS detection triggers battery charging logic |
| SLCD_SEG0–37 / SLCD_COM0–7 | Segment LCD driver outputs | Direct drive of up to 38 segments × 8 commons; internal voltage boost supports contrast adjustment in 16 steps |
| CTSU0–26 | Capacitive touch sensing electrodes | 27 dedicated CTSU channels support mutual/self-capacitance sensing for button/slider/wheel UI elements |
| ADC0–24 | Analog input channels | 25-channel 14-bit ADC with selectable 12-/14-bit resolution; supports temperature sensor and internal reference inputs |
Key Features
| Feature | Design Value |
|---|---|
| Segment LCD Controller (SLCDC) | Drives up to 304 segments (38×8) with automatic waveform generation, internal voltage boosting, and blink control-eliminates external LCD bias IC |
| Capacitive Touch Sensing Unit (CTSU) | 27-channel high-sensitivity touch engine with noise immunity and auto-tuning-enables robust touch UI on plastic/glass overlays |
| USB Battery Charging 1.2 Support | On-chip USB transceiver and LDO deliver 3.3 V to USB PHY while detecting D+/D− handshake for BC1.2 charging negotiation |
| Hardware Security Engine (SCE5) | AES128/256 encryption/decryption, GHASH authentication, and TRNG enable secure firmware updates and data-at-rest protection |
| Event Link Controller (ELC) | Routes 128+ peripheral events (e.g., ADC EOC → DMAC trigger) without CPU involvement-reduces latency and ISR overhead |
Applications
| Industrial HMI Panel | Smart Thermostat Display |
|---|---|
Use Scenario: Embedded control panel in factory automation with segmented LCD display, touch buttons, and real-time sensor monitoring. IC Role / Device Role / Timing Role: Primary application MCU handling display refresh, capacitive touch decoding, ADC-based temperature/humidity acquisition, and CAN bus communication with PLCs. Use Value: Integrated SLCDC and CTSU eliminate external touch controller and LCD bias IC; 48-MHz Cortex-M4 ensures <10-ms response to touch events and display updates. | Use Scenario: Residential HVAC thermostat with segmented LCD, ambient temperature sensing, and USB configuration port. IC Role / Device Role / Timing Role: System-on-chip managing RTC calendar, battery-backed timekeeping, USB device enumeration for firmware updates, and analog front-end for thermistor readings. Use Value: On-chip USB FS with BC1.2 support allows field technicians to reprogram units via standard USB cables; integrated TSN and ADC14 provide ±0.5°C measurement accuracy. |
| Medical Patient Monitor UI | Energy Meter Display Module |
Use Scenario: Portable patient monitor with segmented display showing vital signs, touch navigation, and low-power operation between charges. IC Role / Device Role / Timing Role: Low-power HMI controller using AGT timers for wake-on-touch, RTC for timestamped logs, and OPAMPs for analog sensor conditioning. Use Value: Dual watchdogs (WDT + IWDT) and ECC SRAM meet IEC 62304 Class B safety requirements; 1.6-V minimum supply enables extended battery life. | Use Scenario: DIN-rail mounted electricity meter with LCD display, tamper detection, and isolated RS-485 communication. IC Role / Device Role / Timing Role: Display and interface MCU interfacing with metrology IC via SPI, driving LCD segments, and logging events using battery-backed RTC. Use Value: 5-V tolerant GPIOs simplify connection to isolated level-shifters; CAC circuit validates main oscillator accuracy for time-critical billing calculations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA4M1AB3CFP | 100-pin LQFP package; adds 16 more GPIOs, 2 additional SCI channels, and full 25-channel ADC support | Required for designs needing >49 I/O pins or full 25-channel analog acquisition | Select when board layout accommodates larger footprint and higher pin count is needed for expansion |
| R7FA4M1AB2CLJ | 100-pin LGA package; same peripherals but rated for -40°C to +85°C and uses different package thermal/mechanical profile | Suitable for cost-sensitive consumer applications without extended temperature requirement | Choose for space-constrained PCBs where LGA soldering is available and industrial temp grade is not required |
Compared with R7FA4M1AB3CFM#AA0, the R7FA4M1AB3CFP offers greater I/O and analog channel count in a larger package, while the R7FA4M1AB2CLJ provides identical functionality in an LGA form factor with reduced temperature rating-both require PCB redesign and are not drop-in replacements.
Availability
R7FA4M1AB3CFM#AA0 is available at Aetrix Electronics and suitable for industrial HMI, smart building controls, and medical display modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R7FA4M1AB3CFM#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 global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The R7FA4M1AB3CFM#AA0 belongs to the RA4M1 group-a low-power, HMI-optimized Arm Cortex-M4 MCU family designed for segment LCD and capacitive touch applications in industrial and consumer equipment.
FAQ
What is the maximum operating frequency and core type of the R7FA4M1AB3CFM#AA0?
The R7FA4M1AB3CFM#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 supports a 4-GB address space. This core delivers deterministic real-time performance for HMI and control tasks while maintaining low power consumption in active and sleep modes.
Does the R7FA4M1AB3CFM#AA0 support USB device functionality with battery charging capability?
Yes, the R7FA4M1AB3CFM#AA0 integrates a USB 2.0 Full-Speed Module (USBFS) with an on-chip transceiver and voltage regulator, enabling it to operate as a self-powered USB device. It complies with USB Battery Charging Specification 1.2, allowing negotiation of higher current draw from compliant chargers-critical for field-programmable devices like thermostats and portable HMIs.
What LCD and touch interfaces does the R7FA4M1AB3CFM#AA0 provide?
The R7FA4M1AB3CFM#AA0 includes a Segment LCD Controller (SLCDC) supporting up to 38 segments × 8 commons and a Capacitive Touch Sensing Unit (CTSU) with 27 electrode channels. These are fully integrated-no external drivers or touch controllers are needed. The SLCDC supports internal voltage boosting and 16-step contrast control, while the CTSU provides built-in noise suppression and auto-calibration for reliable operation under varying environmental conditions.
What safety and security features are implemented in the R7FA4M1AB3CFM#AA0?
The R7FA4M1AB3CFM#AA0 includes ECC protection for 16 KB of SRAM, parity checking for another 16 KB, Flash area protection, ADC self-diagnosis, Clock Frequency Accuracy Measurement Circuit (CAC), CRC calculator, Data Operation Circuit (DOC), and Independent Watchdog Timer (IWDT). Its Secure Crypto Engine 5 (SCE5) provides AES128/256 encryption, GHASH authentication, and True Random Number Generation-meeting foundational requirements for IEC 62304 and IEC 62443 compliance.
What is the package type and operating temperature range for the R7FA4M1AB3CFM#AA0?
The R7FA4M1AB3CFM#AA0 is supplied in a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with Sn (tin) lead finish. It is rated for industrial operation from -40°C to +105°C, making it suitable for deployment in harsh environments such as factory floors, outdoor energy meters, and HVAC systems where thermal stability is critical.
R7FA4M1AB3CFM#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 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 1x8b, 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA4M1AB3CFM#AA0 FAQ
1.How can I place an order for R7FA4M1AB3CFM#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA4M1AB3CFM#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 R7FA4M1AB3CFM#AA0 reliable?
The price and inventory of R7FA4M1AB3CFM#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA4M1AB3CFM#AA0 is usually 5 days.
3.What payment methods are accepted for R7FA4M1AB3CFM#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA4M1AB3CFM#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA4M1AB3CFM#AA0?
R7FA4M1AB3CFM#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA4M1AB3CFM#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 R7FA4M1AB3CFM#AA0?
For technical support, including R7FA4M1AB3CFM#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA4M1AB3CFM#AA0 requirements.
6.How does Aetrix verify that R7FA4M1AB3CFM#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FA4M1AB3CFM#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 R7FA4M1AB3CFM#AA0 meets industry standards.
7.What is the process for return or replacement of R7FA4M1AB3CFM#AA0?
All R7FA4M1AB3CFM#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA4M1AB3CFM#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 R7FA4M1AB3CFM#AA0 part is unused and in its original packaging.
Return procedure for R7FA4M1AB3CFM#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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