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Renesas R7FA4M1AB2CLJ#AC0
- Part No.:
- R7FA4M1AB2CLJ#AC0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-TFLGA
- Datasheet:
-
R7FA4M1AB2CLJ#AC0.pdf
- Description:
- IC MCU 32BIT 256KB FLSH 100TFLGA
- Quantity:
- Payment:
- Shipping:
Inventory:254
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Product details
Overview
R7FA4M1AB2CLJ#AC0 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 CAN module - deployed in industrial HMI panels requiring low-power operation, touch-enabled UI, and real-time control.
For engineers reviewing the R7FA4M1AB2CLJ#AC0 datasheet, R7FA4M1AB2CLJ#AC0 pinout, R7FA4M1AB2CLJ#AC0 application, or R7FA4M1AB2CLJ#AC0 equivalent, key selection criteria include its 100-pin LGA package, -40°C to +85°C temperature grade, 1.6–5.5 V operating voltage, dual watchdog timers (WDT/IWDT), and hardware security engine (SCE5) supporting AES128/256 and TRNG.
Technical Context
The R7FA4M1AB2CLJ#AC0 implements an Armv7E-M architecture with DSP extensions and single-precision FPU, enabling deterministic real-time signal processing for motor control and sensor fusion. Its memory subsystem includes ECC-protected SRAM (16 KB), parity-protected SRAM (16 KB), and 8-KB data flash rated for 100,000 P/E cycles.
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 dual GPT32/GPT16 timers supporting brushless DC motor commutation. The integrated SLCDC drives up to 38 segments × 4 commons, while CTSU supports 27 touch channels with noise immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4 with FPU, 48 MHz max - enables real-time floating-point math for motor control and audio processing. |
| Memory | 256-KB code flash + 8-KB data flash + 32-KB SRAM (16 KB ECC + 16 KB parity) - supports firmware updates, parameter storage, and safety-critical data integrity. |
| USB Interface | USB 2.0 Full-Speed with on-chip transceiver and Battery Charging 1.2 compliance - eliminates external PHY and enables direct USB device connectivity for configuration and data upload. |
| Analog Peripherals | 14-bit ADC (25 ch), 12-bit DAC, 2× ACMPLP, 4× OPAMP, TSN - provides high-resolution sensor acquisition, analog output control, and on-die temperature monitoring. |
| Timing & Safety | GPT32×2, GPT16×6, AGT×2, RTC with calendar, WDT/IWDT, CAC, CRC, DOC - delivers precise PWM generation, time-stamped events, fail-safe reset, clock accuracy validation, and data integrity checking. |
| Security | SCE5 crypto engine with AES128/256, GHASH, TRNG - enables secure boot, encrypted communication, and tamper-resistant key management. |
| HMI Support | SLCDC (38×4 seg), CTSU (27 ch), 5-V-tolerant I/O (9 pins) - directly drives segment LCDs and capacitive touch panels without external level shifters or controllers. |
Pinout & Package
Package: 100-pin LGA (7 mm × 7 mm, 0.65 mm pitch), RoHS-compliant Sn-only termination, rated for -40°C to +85°C ambient 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 interface | Supports 1–20 MHz crystal or external clock input - enables precise timing for USB and real-time applications. |
| XCIN / XCOUT | Sub-clock oscillator | 32.768 kHz crystal interface for RTC calendar and low-power wake-up - maintains timekeeping during battery backup mode. |
| GTIOC0A–GTIOC7B | PWM I/O for motor control | 16 dedicated timer I/O pins supporting complementary PWM outputs with dead-time insertion - suitable for 3-phase BLDC gate drive. |
| SLCD0–SLCD37 / SLCC0–SLCC3 | Segment/Common drivers | Direct connection to LCD glass electrodes - supports static or multiplexed (4-com/38-seg or 8-com/34-seg) display configurations. |
| CTSU0–CTSU26 | Capacitive touch sense inputs | 27 dedicated CTSU channel pins - enable robust touch detection through overlay materials with built-in noise cancellation. |
| USB_DP / USB_DM | USB differential pair | Full-speed USB 2.0 physical layer with internal transceiver - no external components required for USB device functionality. |
| TXD0 / RXD0 | SCI UART interface | Asynchronous serial communication at up to 12.5 Mbps - used for debug console, host MCU bridging, or sensor telemetry. |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Enables direct peripheral-to-peripheral triggering (e.g., ADC conversion start → DMA transfer → interrupt) without CPU involvement - reduces latency and CPU load in real-time systems. |
| Secure Crypto Engine 5 (SCE5) | Hardware-accelerated AES128/256 encryption, GHASH, and True Random Number Generation - meets IEC 62443-3-3 requirements for secure firmware updates and encrypted communication. |
| Segment LCD Controller (SLCDC) | Integrated LCD driver with programmable waveform A/B, 16-step contrast control, and automatic segment/common sequencing - eliminates external LCD controller IC and reduces BOM cost. |
| Capacitive Touch Sensing Unit (CTSU) | 27-channel self-capacitance sensing with built-in noise suppression and auto-calibration - achieves >60 dB noise immunity in industrial EMI environments. |
| Dual Watchdog Architecture | Independent WDT (clocked by main system clock) and IWDT (clocked by dedicated 15-kHz oscillator) - ensures fail-safe recovery even if main clock fails or software hangs. |
Applications
| Industrial HMI Panel | Smart Energy Meter |
|---|---|
Use Scenario: Embedded panel with segmented LCD display, capacitive touch buttons, and USB configuration port in factory automation equipment. IC Role / Device Role / Timing Role: Primary application MCU managing display refresh, touch scan, USB device enumeration, and real-time process I/O via GPIO and CAN. Use Value: Integrated SLCDC and CTSU eliminate two external ICs; USBFS enables field firmware updates without JTAG; 48-MHz Cortex-M4 handles UI rendering and protocol stacks concurrently. | Use Scenario: DIN-rail mounted electricity meter with LCD readout, tamper detection, and secure data logging over RS-485 and USB. IC Role / Device Role / Timing Role: System controller executing metrology algorithms, managing RTC calendar, storing billing data in data flash, and securing communications via SCE5. Use Value: 8-KB data flash with 100,000 P/E cycles ensures 10+ years of daily log writes; AES256 encrypts stored consumption data; RTC with battery backup retains time across power loss. |
| BLDC Motor Drive Module | Medical Patient Monitor |
Use Scenario: Compact fan or pump controller using 3-phase BLDC motor with Hall sensor feedback and thermal protection. IC Role / Device Role / Timing Role: Real-time motor controller generating synchronized PWM waveforms (GPT32/GPT16), reading Hall sensors (GTIU/GTIV/GTIW), and monitoring temperature (TSN). Use Value: Hardware POEG disables PWM outputs on fault; AGT timers measure Hall period for speed calculation; 14-bit ADC resolves current-sense shunt voltage with <1 mV LSB. | Use Scenario: Portable vital signs monitor with OLED/LCD display, touch UI, analog front-end for ECG/SpO₂, and USB data export. IC Role / Device Role / Timing Role: Central processor acquiring analog biosignals (ADC14), driving display (SLCDC), handling touch input (CTSU), and exporting encrypted patient data via USBFS. Use Value: On-chip OPAMPs condition weak ECG signals; DAC12 generates reference voltages; TRNG seeds HIPAA-compliant session keys; 1.6-V minimum VCC enables coin-cell backup operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA4M1AB3CFP | Same RA4M1 family, identical peripherals, but 100-pin LQFP package and -40°C to +105°C rating. | Preferred for extended-temperature industrial or automotive under-hood applications where LGA rework is impractical. | Select when higher ambient temperature tolerance or standard LQFP assembly is required; pinout differs due to package geometry. |
| R7FA6M2AF3CFP | RA6M2 family part: 200-MHz Cortex-M33, 1-MB flash, enhanced security (TrustZone), but no SLCDC or CTSU. | Suitable for high-performance, security-critical applications lacking integrated HMI peripherals - requires external touch/LCD controllers. | Choose when compute throughput or advanced security outweighs integrated HMI features; not drop-in compatible due to different peripheral set and pinout. |
Compared with R7FA4M1AB3CFP, the R7FA4M1AB2CLJ#AC0 offers identical functionality in a compact LGA package optimized for space-constrained designs, while R7FA6M2AF3CFP trades HMI integration for higher performance and TrustZone - making the R7FA4M1AB2CLJ#AC0 optimal for cost-sensitive, touch-LCD-based industrial controls.
Availability
R7FA4M1AB2CLJ#AC0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy meters, BLDC motor drives, and portable medical monitors requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for R7FA4M1AB2CLJ#AC0 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 - with deep expertise in microcontrollers, analog, power, and connectivity technologies.
The R7FA4M1AB2CLJ#AC0 belongs to the RA4M1 group, designed specifically for cost-optimized, low-power human-machine interface applications requiring integrated LCD/touch control, USB connectivity, and functional safety features.
FAQ
What is the operating voltage range supported by the R7FA4M1AB2CLJ#AC0?
The R7FA4M1AB2CLJ#AC0 operates from 1.6 V to 5.5 V across its entire temperature range (-40°C to +85°C). This wide supply range allows direct interfacing with 1.8-V, 3.3-V, and 5-V logic systems and enables battery-backed operation down to coin-cell voltages. The R7FA4M1AB2CLJ#AC0 includes Low Voltage Detection (LVD) with programmable thresholds to trigger safe shutdown or warning before brownout.
Does the R7FA4M1AB2CLJ#AC0 support USB device functionality without external components?
Yes, the R7FA4M1AB2CLJ#AC0 integrates a full USB 2.0 Full-Speed transceiver with on-chip voltage regulator, supporting USB device mode at 12 Mbps without external PHY or level shifters. It complies with USB Battery Charging Specification 1.2 and provides up to 10 configurable endpoints. The R7FA4M1AB2CLJ#AC0 also supports USB host mode, enabling dual-role capability in applications like field-programmable devices.
How many touch channels does the CTSU support on the R7FA4M1AB2CLJ#AC0?
The R7FA4M1AB2CLJ#AC0 supports 27 capacitive touch sensing channels via its integrated CTSU module. This is confirmed in Table 1.14 of the datasheet, which lists "CTSU: 27" for the R7FA4M1AB2CLJ#AC0 variant. These channels can be configured for self-capacitance measurement with built-in noise cancellation, enabling robust touch button, slider, or wheel implementations in noisy industrial environments.
What is the maximum resolution and channel count of the ADC in the R7FA4M1AB2CLJ#AC0?
The R7FA4M1AB2CLJ#AC0 integrates a 14-bit successive approximation ADC (ADC14) with up to 25 selectable analog input channels. It supports both 12-bit and 14-bit conversion modes, allowing trade-offs between speed and resolution. Input sources include external pins, internal temperature sensor (TSN), and internal reference voltage - all accessible without external circuitry. The R7FA4M1AB2CLJ#AC0's ADC achieves ±2 LSB INL and supports hardware-triggered conversions via ELC.
Is the R7FA4M1AB2CLJ#AC0 pin-compatible with other RA4M1 group members?
No, the R7FA4M1AB2CLJ#AC0 is not pin-compatible with other RA4M1 variants due to its 100-pin LGA (PTLG0100JA-A) package, whereas LQFP and QFN variants use different land patterns and pin assignments. While the RA4M1 family shares software compatibility and peripheral register maps, mechanical compatibility is limited to same-package variants (e.g., R7FA4M1AB3CFP uses 100-pin LQFP). The R7FA4M1AB2CLJ#AC0 requires dedicated PCB layout for its 0.65-mm-pitch LGA footprint.
R7FA4M1AB2CLJ#AC0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-TFLGA
- 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:
- 81
- 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 25x14b SAR; D/A 2x8b, 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA4M1AB2CLJ#AC0 FAQ
1.How can I place an order for R7FA4M1AB2CLJ#AC0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA4M1AB2CLJ#AC0 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 R7FA4M1AB2CLJ#AC0 reliable?
The price and inventory of R7FA4M1AB2CLJ#AC0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA4M1AB2CLJ#AC0 is usually 5 days.
3.What payment methods are accepted for R7FA4M1AB2CLJ#AC0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA4M1AB2CLJ#AC0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA4M1AB2CLJ#AC0?
R7FA4M1AB2CLJ#AC0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA4M1AB2CLJ#AC0 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 R7FA4M1AB2CLJ#AC0?
For technical support, including R7FA4M1AB2CLJ#AC0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA4M1AB2CLJ#AC0 requirements.
6.How does Aetrix verify that R7FA4M1AB2CLJ#AC0 is sourced from the original manufacturer or authorized distributors?
All R7FA4M1AB2CLJ#AC0 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 R7FA4M1AB2CLJ#AC0 meets industry standards.
7.What is the process for return or replacement of R7FA4M1AB2CLJ#AC0?
All R7FA4M1AB2CLJ#AC0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA4M1AB2CLJ#AC0, 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 R7FA4M1AB2CLJ#AC0 part is unused and in its original packaging.
Return procedure for R7FA4M1AB2CLJ#AC0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA4M1AB2CLJ#AC0 Tags
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