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Renesas R7FA2L1AB3CFL#BA0
- Part No.:
- R7FA2L1AB3CFL#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R7FA2L1AB3CFL#BA0.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,360
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Product details
Overview
R7FA2L1AB3CFL#BA0 from Renesas is an ultra-low-power 48 MHz Arm® Cortex®-M23 microcontroller with 256 KB code flash, 32 KB SRAM, 12-bit ADC/DAC, Capacitive Touch Sensing Unit (CTSU2), CAN interface, and integrated security features including AES-128/256 and TRNG - deployed in industrial HMI, smart sensors, and battery-powered control systems.
For engineers reviewing the R7FA2L1AB3CFL#BA0 datasheet, R7FA2L1AB3CFL#BA0 pinout, R7FA2L1AB3CFL#BA0 application, or R7FA2L1AB3CFL#BA0 equivalent, key selection criteria include its 48-pin LQFP package, -40°C to +85°C industrial temperature grade, 1.6–5.5 V operating voltage, CTSU2-based touch interface support, and CAN 2.0A/B compliance requiring external transceiver.
Technical Context
The R7FA2L1AB3CFL#BA0 implements the Armv8-M architecture with Memory Protection Unit (MPU) and CoreSight™ debug infrastructure, supporting secure boot and runtime integrity checks via ECC on SRAM, flash area protection, and ADC self-diagnosis. Its clock system integrates HOCO (48 MHz), SOSC (32.768 kHz), and IWDT-dedicated oscillator for fail-safe timing.
Peripheral integration includes five SCI channels (UART/IIC/SPI/Smart Card), two I2C and two SPI interfaces, one CAN module (32 mailboxes, standard/extended frames), and dual 16-bit AGT timers plus four 32-bit GPT32 channels - all linked via Event Link Controller (ELC) to minimize CPU intervention and reduce active power consumption.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M23, 48 MHz max - enables real-time deterministic execution with TrustZone-assisted security partitioning. |
| Memory | 256 KB code flash + 8 KB data flash + 32 KB SRAM with ECC - supports firmware updates, parameter storage, and robust runtime data handling. |
| Analog | 12-bit ADC (19 ch), 12-bit DAC (1 ch), 2× ACMPLP, TSN - enables precision sensor signal acquisition and analog output control without external converters. |
| Connectivity | CAN 2.0A/B (32 mailboxes), 5× SCI, 2× I2C, 2× SPI - provides automotive-grade bus resilience and multi-protocol peripheral interfacing. |
| Human Interface | Capacitive Sensing Unit (CTSU2) with 32 touch channels - delivers reliable, low-power touch button/slider detection through dielectric overlays. |
| Power & Temp | 1.6–5.5 V supply, -40°C to +85°C operation, multiple low-power modes - suitable for wide-input industrial and battery-operated edge devices. |
| Security | AES-128/256, TRNG, register write protection, CAC, CRC, DOC - meets IEC 62443-3-3 SL1/SL2 requirements for embedded device trust anchors. |
Pinout & Package
Package: 48-pin LQFP (7 mm × 7 mm, 0.50 mm pitch), industrial temperature grade (-40°C to +85°C), Pb-free Sn terminal finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: digital (VCC/VSS) and analog (AVCC0/AVSS0); decoupling required per datasheet layout guidelines. |
| P000–P015, P100–P115, etc. | General-purpose I/O | 34 GPIOs total; 4× 5-V tolerant pins, 23× N-ch open-drain outputs - supports mixed-voltage interfacing and LED driving. |
| XTAL / EXTAL / XCIN / XCOUT | Clock inputs | Supports external crystal (1–20 MHz), sub-clock (32.768 kHz), and internal oscillators - enables precise RTC and CAN timing synchronization. |
| CTX0 / CRX0 | CAN transceiver interface | Dedicated differential CAN TX/RX pins - requires external ISO 11898-compliant transceiver (e.g., TJA1042) for bus connection. |
| SWDIO / SWCLK | Debug interface | 2-pin Serial Wire Debug - enables full JTAG-style programming, trace, and real-time debugging without additional pins. |
Key Features
| Feature | Design Value |
|---|---|
| Capacitive Touch Sensing (CTSU2) | 32-channel capacitive sensing with noise immunity and auto-tuning - eliminates mechanical buttons in HMI designs while maintaining <1 µA standby current. |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining (e.g., ADC conversion → DMA transfer → CRC calculation) - reduces CPU load and latency in sensor-to-cloud data paths. |
| Low-Power Analog Comparators (ACMPLP) | 2 independent comparators with selectable speed/power trade-off - enables wake-on-event functionality (e.g., threshold breach detection) at sub-µA quiescent current. |
| Realtime Clock (RTC) | Calendar mode (2000–2099) with leap-year correction and binary counter mode - supports time-stamped logging and scheduled wake-up without external RTC IC. |
| Data Transfer Controller (DTC) | Autonomous memory-to-peripheral transfers triggered by interrupts - offloads burst data movement (e.g., SPI receive buffer → SRAM) without CPU cycles or DMA controller overhead. |
Applications
| Industrial HMI Panels | Smart Sensor Nodes |
|---|---|
Use Scenario: Touch-enabled operator interface for PLCs, motor drives, and HVAC controllers with graphical overlay and status feedback. IC Role / Device Role / Timing Role: Main application MCU managing CTSU2 touch input, CAN bus communication with field devices, and real-time display refresh via SPI. Use Value: Integrated CTSU2 eliminates external touch controller; CAN interface enables direct connection to industrial networks; 48 MHz core ensures responsive UI rendering. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and gas concentration with wireless upload. IC Role / Device Role / Timing Role: System-on-chip sensor aggregator performing ADC sampling, TSN-based thermal compensation, and low-power CAN or SCI-based data forwarding. Use Value: On-chip TSN and 12-bit ADC enable accurate ambient sensing; ultra-low-power modes extend battery life to >5 years; TRNG supports secure OTA update authentication. |
| Automotive Body Control | Energy Monitoring Devices |
Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting with LIN/CAN gateway capability. IC Role / Device Role / Timing Role: CAN node with message filtering, AGT timers for PWM dimming, and KINT for physical switch detection. Use Value: CAN 2.0B compliance ensures interoperability with vehicle networks; 5-V tolerant I/O simplifies connection to legacy 5 V sensors and actuators. | Use Scenario: DIN-rail mounted electricity meter with voltage/current sensing, energy accumulation, and RS-485 Modbus communication. IC Role / Device Role / Timing Role: Precision measurement MCU using ADC12 for AC waveform sampling, RTC for billing timestamping, and SCI for Modbus RTU protocol stack. Use Value: 12-bit ADC with internal reference enables ±0.5% metering accuracy; hardware CRC and DOC ensure data integrity across long serial links. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2L1AB2DFL#BA0 | Same package and peripherals, but rated for -40°C to +85°C (same temp grade) and uses 256 KB flash with 8 KB data flash - identical silicon; differs only in test screening and marking. | No functional difference; both qualified for industrial use - R7FA2L1AB2DFL#BA0 is legacy marking variant with identical electrical specs. | Select R7FA2L1AB3CFL#BA0 for new designs requiring latest revision (Rev.1.60 datasheet) and guaranteed availability through Renesas' long-term program. |
| R7FA2E1A93CFM#AA0 | RA2E1 family part: same 48 MHz Cortex-M23 core but only 128 KB flash, 16 KB SRAM, no CAN, no CTSU2, and reduced I/O count (50 pins vs. 48-pin footprint). | Suitable for cost-sensitive, non-CAN, non-touch applications - lacks CAN transceiver interface and capacitive sensing hardware required for R7FA2L1AB3CFL#BA0's target use cases. | Choose only if CAN and CTSU2 are unnecessary and BOM cost reduction outweighs feature loss; not a drop-in replacement. |
Compared with R7FA2L1AB2DFL#BA0, the R7FA2L1AB3CFL#BA0 offers identical functionality with updated documentation and lifecycle assurance; versus R7FA2E1A93CFM#AA0, it delivers critical CAN and CTSU2 capabilities essential for industrial connectivity and HMI - making it the sole fit for touch-enabled, bus-connected edge nodes.
Availability
R7FA2L1AB3CFL#BA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, and automotive body control modules requiring stable component supply, long-term manufacturability, and Renesas' 10-year product longevity guarantee.
Supply support for R7FA2L1AB3CFL#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 - with over 40 years of MCU innovation and broadest Arm-based microcontroller portfolio.
The RA2L1 Group is designed specifically for ultra-low-power, cost-sensitive industrial and consumer HMI applications - integrating capacitive touch, security, and CAN into compact packages without sacrificing performance or toolchain compatibility.
FAQ
What is the maximum operating frequency of the R7FA2L1AB3CFL#BA0?
The R7FA2L1AB3CFL#BA0 operates at a maximum frequency of 48 MHz using its Arm Cortex-M23 core. This speed is achievable with the high-speed on-chip oscillator (HOCO) or external crystal sources, and is fully supported across its -40°C to +85°C industrial temperature range. The R7FA2L1AB3CFL#BA0 maintains timing compliance under worst-case voltage (1.6 V) and temperature conditions per its datasheet specifications.
Does the R7FA2L1AB3CFL#BA0 include hardware security features?
Yes, the R7FA2L1AB3CFL#BA0 integrates AES-128/256 encryption accelerators, a True Random Number Generator (TRNG), memory protection units (MPU), flash area protection, SRAM ECC, and register write protection. These features collectively support secure boot, encrypted firmware updates, and runtime integrity verification - enabling compliance with IEC 62443-3-3 SL1/SL2 for industrial control systems. The R7FA2L1AB3CFL#BA0 implements these functions in dedicated hardware blocks, not software libraries.
Can the R7FA2L1AB3CFL#BA0 drive capacitive touch sensors directly?
Yes, the R7FA2L1AB3CFL#BA0 includes the Capacitive Sensing Unit version 2 (CTSU2), which provides hardware-accelerated capacitive touch measurement across up to 32 channels. It supports auto-calibration, noise suppression, and proximity detection - eliminating the need for external touch controller ICs. The R7FA2L1AB3CFL#BA0's CTSU2 is validated for operation through 2 mm glass or plastic overlays and consumes less than 1 µA in touch-scan standby mode.
Is CAN communication supported natively on the R7FA2L1AB3CFL#BA0?
The R7FA2L1AB3CFL#BA0 includes a fully compliant CAN 2.0A/B controller with 32 configurable mailboxes and support for both standard (11-bit) and extended (29-bit) identifiers. However, it requires an external CAN transceiver (e.g., TJA1042 or SN65HVD230) to interface with the physical bus. The R7FA2L1AB3CFL#BA0 provides dedicated CTX0 and CRX0 pins for this purpose and includes built-in loopback and self-test modes for validation.
What development tools are compatible with the R7FA2L1AB3CFL#BA0?
The R7FA2L1AB3CFL#BA0 is supported by Renesas' e2 studio IDE, Flexible Software Package (FSP), and RA Smart Configurator - all freely available. Hardware debugging uses standard 2-pin SWD (SWDIO/SWCLK) with CMSIS-DAP or J-Link probes. Evaluation is enabled via the RA2L1 Fast Prototyping Board (RTK0EG001FE00000BE) and EK-RA2L1 kit. The R7FA2L1AB3CFL#BA0 shares toolchain compatibility with the broader RA2 series, allowing code reuse across pin-compatible variants.
R7FA2L1AB3CFL#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- RA2L1
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M23
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- CANbus, I2C, SCI, SPI, Smart Card, UART/USART
- Peripherals:
- AES, Capacitive Touch, DMA, LVD, POR, PWM, Temp Sensor, TRNG, WDT
- Number of I/O:
- 34
- 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 9x12b SAR; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2L1AB3CFL#BA0 FAQ
1.How can I place an order for R7FA2L1AB3CFL#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2L1AB3CFL#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 R7FA2L1AB3CFL#BA0 reliable?
The price and inventory of R7FA2L1AB3CFL#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2L1AB3CFL#BA0 is usually 5 days.
3.What payment methods are accepted for R7FA2L1AB3CFL#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2L1AB3CFL#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2L1AB3CFL#BA0?
R7FA2L1AB3CFL#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2L1AB3CFL#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 R7FA2L1AB3CFL#BA0?
For technical support, including R7FA2L1AB3CFL#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2L1AB3CFL#BA0 requirements.
6.How does Aetrix verify that R7FA2L1AB3CFL#BA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2L1AB3CFL#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 R7FA2L1AB3CFL#BA0 meets industry standards.
7.What is the process for return or replacement of R7FA2L1AB3CFL#BA0?
All R7FA2L1AB3CFL#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2L1AB3CFL#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 R7FA2L1AB3CFL#BA0 part is unused and in its original packaging.
Return procedure for R7FA2L1AB3CFL#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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