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Renesas R7FA4M1AB3CFM#BA0
- Part No.:
- R7FA4M1AB3CFM#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R7FA4M1AB3CFM#BA0.pdf
- Description:
- MCU RA4 ARM CM4 48MHZ 256K/32K Q
- Quantity:
- Payment:
- Shipping:
Inventory:1,835
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Product details
Overview
R7FA4M1AB3CFM#BA0 from Renesas 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 R7FA4M1AB3CFM#BA0 datasheet, R7FA4M1AB3CFM#BA0 pinout, R7FA4M1AB3CFM#BA0 application, or R7FA4M1AB3CFM#BA0 equivalent, key selection considerations include its 64-pin LQFP package, -40°C to +105°C operating range, integrated SCE5 crypto engine, dual AGT timers for ultra-low-power wake-up, and hardware-accelerated CTSU for robust touch sensing in noisy environments.
Technical Context
The R7FA4M1AB3CFM#BA0 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 rated for 100,000 P/E cycles, and Flash Cache for instruction fetch acceleration.
System-level integration includes Event Link Controller (ELC) for autonomous peripheral triggering, four-channel DMAC plus DTC for zero-CPU data movement, and dual watchdogs (WDT + IWDT) with independent clock sources - enabling fail-safe operation in safety-critical embedded systems.
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. |
| Flash Memory | 256 KB code flash + 8 KB data flash - supports field firmware updates and parameter storage with 100K endurance. |
| RAM | 32 KB SRAM with ECC on 16 KB - detects and corrects single-bit errors for reliable operation in industrial environments. |
| Analog Peripherals | 14-bit ADC (25 ch), 12-bit DAC, 2× ACMPLP, 4× OPAMP, TSN - enables precision sensor signal conditioning and closed-loop analog control. |
| Human Interface | SLCDC (38×4 seg), CTSU (27 electrodes) - drives segmented LCDs and detects multi-touch gestures without external ICs. |
| Connectivity | USB 2.0 FS (with on-chip transceiver), CAN 2.0B, 4× SCI, 2× I2C, 2× SPI, SSIE - supports wired device connectivity and audio streaming. |
| Security | SCE5 with AES128/256, TRNG, GHASH - provides hardware-accelerated encryption for secure boot and OTA updates. |
Pinout & Package
Package: 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant Sn finish, operating temperature range −40°C to +105°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: VCC powers digital/analog logic; VSS is common reference - requires local 0.1-μF decoupling per VCC pin. |
| XTAL / EXTAL | Main oscillator interface | Supports 1–20 MHz crystal or external clock input - enables precise timing for USB and RTC synchronization. |
| USB_VBUS / USB_DP / USB_DM | USB 2.0 Full-Speed interface | Integrated transceiver with internal 3.3-V LDO - eliminates need for external USB PHY; compliant with BC 1.2 charging detection. |
| CTSU_S0–S26 | Capacitive touch electrode inputs | 27 dedicated CTSU channels - supports self- and mutual-capacitance sensing for slider, wheel, and proximity detection. |
| SLCD_SEG0–SEG37 / COM0–COM7 | Segment LCD driver outputs | Configurable for 38×4 or 34×8 segment mapping - drives multiplexed LCDs directly with internal voltage boost and contrast control. |
| ADC00–ADC24 | Analog input channels | 25 selectable inputs including TSN and internal references - supports simultaneous sampling across multiple sensors with programmable resolution (12/14-bit). |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Enables direct peripheral-to-peripheral triggering (e.g., ADC conversion start → DMA transfer) without CPU intervention - reduces latency and CPU load. |
| Low-Power Asynchronous Timers (AGT) | Two 16-bit timers running from LOCO (32.768 kHz) - provide sub-millisecond wake-up from deep sleep with <1 μA current draw. |
| Secure Crypto Engine 5 (SCE5) | Hardware AES-128/256 encryption/decryption with DMA-linked operation - secures firmware images and communication payloads at line rate. |
| Realtime Clock with Battery Backup | Calendar mode (2000–2099) + binary mode, powered by VBATT - maintains time during main power loss with automatic VCC/VBATT switchover. |
| Operational Amplifier Array | Four rail-to-rail OPAMPs with programmable gain - condition signals from thermistors, strain gauges, or current-sense resistors before ADC sampling. |
Applications
| Smart Thermostat Control Panel | Industrial HMI Display Terminal |
|---|---|
Use Scenario: Wall-mounted HVAC controller with segmented LCD display, capacitive touch buttons, and local temperature/humidity sensing. IC Role / Device Role / Timing Role: Primary MCU managing touch UI, sensor acquisition, PID loop execution, and USB configuration port. Use Value: Integrated CTSU eliminates external touch controller; SLCDC drives 38-segment display without external bias generator; 14-bit ADC ensures ±0.1°C thermal accuracy. | Use Scenario: DIN-rail mounted panel for monitoring PLC I/O status, displaying alarms, and logging events via USB mass storage. IC Role / Device Role / Timing Role: Standalone HMI processor interfacing with RS-485 (SCI), storing logs in data flash, and rendering status on LCD. Use Value: 8-KB data flash supports 100K write cycles for cyclic logging; USBFS enables plug-and-play firmware updates and log export without host drivers. |
| Medical Patient Monitor Front-End | Energy Meter with Local Display |
Use Scenario: Portable vital sign monitor with ECG front-end amplification, touch navigation, and battery-backed real-time clock. IC Role / Device Role / Timing Role: Signal acquisition MCU handling OPAMP-based analog front-end, touch UI, and time-stamped data buffering. Use Value: Four integrated OPAMPs condition differential ECG signals; IWDT ensures fail-safe reset during signal processing; RTC+VBATT maintains timestamp integrity during battery swaps. | Use Scenario: Smart electricity meter with LCD display, tamper detection, and secure firmware update capability. IC Role / Device Role / Timing Role: Metering SoC performing ADC sampling, LCD drive, tamper interrupt handling, and AES-encrypted firmware verification. Use Value: ADC14 achieves >12-bit ENOB for Class 0.5 metering; SCE5 validates signed firmware images; 5-V tolerant GPIOs interface directly with legacy metering ICs. |
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, 81 GPIOs, full peripheral set (4× SCI, 2× CAN, SSIE), same core/flash/SRAM | Supports larger HMI with more serial interfaces and audio; requires PCB redesign for pin count and layout | Select when needing >49 GPIOs, SSIE for audio feedback, or dual CAN for redundant fieldbus communication. |
| R7FA2E1A93CFM | Arm Cortex-M23, 64 MHz, 256 KB flash, 32 KB SRAM, no CTSU/SLCDC, no USBFS, no CAN, lower security (SCE2) | Targeted at cost-sensitive, non-HMI applications requiring PSA Level 1 security and basic connectivity only | Select when USB, touch, LCD, and advanced crypto are unnecessary - reduces BOM cost and simplifies certification. |
Compared with R7FA4M1AB3CFM#BA0, R7FA4M1AB3CFP offers expanded I/O and peripherals at the cost of larger footprint and higher power, while R7FA2E1A93CFM trades HMI features and security for lower cost and PSA-aligned trust architecture - making R7FA4M1AB3CFM#BA0 optimal for compact, feature-rich industrial HMIs requiring robust touch and secure USB connectivity.
Availability
R7FA4M1AB3CFM#BA0 is available at Aetrix Electronics and suitable for industrial HMI, smart energy meters, and medical patient monitors requiring stable component supply, extended temperature operation, and long-term lifecycle support.
Supply support for R7FA4M1AB3CFM#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 global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications.
The RA4M1 Group targets low-power, high-integration HMI applications - combining Arm Cortex-M4 performance with capacitive touch, segment LCD, USB, and security features in compact packages.
FAQ
What is the maximum operating frequency of the R7FA4M1AB3CFM#BA0?
The R7FA4M1AB3CFM#BA0 operates at a maximum frequency of 48 MHz using its Arm Cortex-M4 core with FPU. This speed is achievable with the high-speed on-chip oscillator (HOCO) or external crystal (1–20 MHz) multiplied via PLL. The core maintains full performance across its −40°C to +105°C operating range, with dynamic voltage scaling ensuring stable operation at all VCC levels from 1.6 V to 5.5 V.
Does the R7FA4M1AB3CFM#BA0 support USB device functionality without external components?
Yes, the R7FA4M1AB3CFM#BA0 integrates a complete USB 2.0 Full-Speed module with an on-chip transceiver and 3.3-V LDO regulator. It supports device mode (including CDC, HID, and MSC classes) and host mode (low-speed only), complies with USB Battery Charging Specification 1.2, and requires no external PHY or level shifters - only standard USB termination resistors and VBUS sensing circuitry.
How many capacitive touch channels does the R7FA4M1AB3CFM#BA0 support?
The R7FA4M1AB3CFM#BA0 supports up to 27 capacitive touch sensing channels via its integrated Capacitive Touch Sensing Unit (CTSU). This is confirmed in the RA4M1 datasheet (R01DS0355EJ0110, Table 1.14) for the 64-pin variants including R7FA4M1AB3CFM#BA0. These channels enable slider, wheel, and matrix keypad implementations with built-in noise rejection and auto-calibration.
What memory protection mechanisms are implemented in the R7FA4M1AB3CFM#BA0?
The R7FA4M1AB3CFM#BA0 implements Arm MPU with 8 configurable regions, SRAM ECC (on 16 KB), SRAM parity checking, flash area protection, and register write protection. These features collectively prevent unauthorized memory access, detect/correct bit errors in critical RAM, and safeguard boot code and configuration registers - meeting IEC 61508 SIL2 and ISO 26262 ASIL-B functional safety requirements.
Is the R7FA4M1AB3CFM#BA0 pin-compatible with other RA4M1 family members?
No, the R7FA4M1AB3CFM#BA0 is not pin-compatible with other RA4M1 variants due to differing package types and I/O counts: it uses a 64-pin LQFP (PLQP0064KB-C), whereas R7FA4M1AB2CLJ is 100-pin LGA and R7FA4M1AB3CFP is 100-pin LQFP. While software and peripheral registers are fully compatible across the RA4M1 group, PCB layout must be redesigned for each package variant.
R7FA4M1AB3CFM#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 52
- 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 2x8b, 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA4M1AB3CFM#BA0 FAQ
1.How can I place an order for R7FA4M1AB3CFM#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA4M1AB3CFM#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 R7FA4M1AB3CFM#BA0 reliable?
The price and inventory of R7FA4M1AB3CFM#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA4M1AB3CFM#BA0 is usually 5 days.
3.What payment methods are accepted for R7FA4M1AB3CFM#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA4M1AB3CFM#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA4M1AB3CFM#BA0?
R7FA4M1AB3CFM#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA4M1AB3CFM#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 R7FA4M1AB3CFM#BA0?
For technical support, including R7FA4M1AB3CFM#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA4M1AB3CFM#BA0 requirements.
6.How does Aetrix verify that R7FA4M1AB3CFM#BA0 is sourced from the original manufacturer or authorized distributors?
All R7FA4M1AB3CFM#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 R7FA4M1AB3CFM#BA0 meets industry standards.
7.What is the process for return or replacement of R7FA4M1AB3CFM#BA0?
All R7FA4M1AB3CFM#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA4M1AB3CFM#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 R7FA4M1AB3CFM#BA0 part is unused and in its original packaging.
Return procedure for R7FA4M1AB3CFM#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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