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Renesas R7FA2L1AB2DFL#BA0
- Part No.:
- R7FA2L1AB2DFL#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R7FA2L1AB2DFL#BA0.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,310
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Product details
Overview
R7FA2L1AB2DFL#BA0 from Renesas is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller operating at up to 48 MHz, featuring 256 KB code flash, 32 KB SRAM, 12-bit ADC/DAC, Capacitive Touch Sensing Unit (CTSU2), CAN interface, and integrated security (AES128/256, TRNG). It targets battery-powered HMI, industrial sensors, and smart metering where low power, analog integration, and functional safety are critical.
For engineers reviewing the R7FA2L1AB2DFL#BA0 datasheet, R7FA2L1AB2DFL#BA0 pinout, R7FA2L1AB2DFL#BA0 application, or R7FA2L1AB2DFL#BA0 equivalent, this page delivers verified specifications, package mapping, real-world use cases, and validated alternative options - all aligned with Rev.1.60 of R01DS0385EJ0160 and confirmed LQFP-48 pin assignment.
Technical Context
The R7FA2L1AB2DFL#BA0 implements Armv8-M architecture with Memory Protection Unit (8 regions) and CoreSight™ MTB-M23 trace, enabling secure, deterministic real-time operation. Its clock system integrates HOCO (48 MHz), SOSC (32.768 kHz), and CAC for frequency accuracy monitoring - essential for RTC and CAN timing compliance.
Analog subsystem includes ADC12 (19-channel, 12-bit), DAC12 (1-channel), ACMPLP (2× low-power comparators), and TSN, all referenced to dedicated AVCC0/AVSS0 rails. The CTSU2 supports up to 32 touch channels with noise immunity, while CAN module complies with ISO 11898-1 and requires external transceiver.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M23, 48 MHz max - enables real-time control with TrustZone-based isolation for firmware partitioning. |
| Memory | 256 KB code flash + 8 KB data flash + 32 KB SRAM with ECC - supports robust firmware updates and data logging in harsh environments. |
| Analog | 12-bit ADC12 (19 ch), 12-bit DAC12 (1 ch), 2× ACMPLP - allows sensor signal conditioning and closed-loop analog output without external components. |
| Connectivity | CAN 2.0A/B (32 mailboxes), 5× SCI, 2× I2C, 2× SPI - provides automotive-grade communication and multi-protocol peripheral interfacing. |
| Power | 1.6–5.5 V supply, -40°C to +85°C operation, LQFP-48 package - suitable for wide-input industrial power rails and extended temperature deployment. |
| Security | AES128/256, TRNG, register write protection, MPU - meets IEC 61508 SIL2 and IEC 62443-3-3 requirements for embedded safety-critical systems. |
| HMI | Capacitive Sensing Unit (CTSU2) with 32-channel support - enables reliable touch buttons, sliders, and proximity detection through overlay materials. |
Pinout & Package
Package: 48-pin LQFP (7 mm × 7 mm, 0.50 mm pitch), RoHS-compliant Sn finish, industrial temperature grade (-40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dedicated digital power pins; decoupling required per datasheet layout guidelines to ensure stable core voltage under dynamic load. |
| AVCC0 / AVSS0 | Analog power / ground | Isolated analog domain supply for ADC12/DAC12 - must be filtered separately to prevent digital noise coupling into precision conversions. |
| P010/VREFH0 / P011/VREFL0 | ADC reference high/low | Configurable reference inputs; connecting VREFH0 to AVCC0 and VREFL0 to AVSS0 sets full-scale range for 12-bit ADC measurements. |
| P213/XTAL / P212/EXTAL | Main crystal oscillator | Supports 1–20 MHz external crystal; enables precise timing for CAN, USB (via PLL), and high-accuracy RTC operation. |
| P300/SWCLK / P108/SWDIO | SWD debug interface | Enables non-intrusive programming and real-time debugging via standard ARM Serial Wire Debug protocol. |
| CTX0 / CRX0 | CAN transmit/receive | Differential CAN bus signals - require external ISO 11898-compliant transceiver (e.g., TJA1042T) for physical layer compliance. |
| TS17 / TS18 | Capacitive touch sense | CTSU2 input pins for self-capacitance measurement; routed with guard traces and minimum 2-mm clearance to reduce crosstalk. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power modes | Multiple sleep states (Sleep, Deep Sleep, Snooze) with sub-μA retention current - extends battery life in portable HMI and wireless sensor nodes. |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining (e.g., ADC conversion → DMA transfer → CRC calculation) without CPU wake-up - reduces latency and power in event-driven systems. |
| Data Transfer Controller (DTC) | Autonomous memory-to-peripheral transfers on interrupt - offloads CPU during high-bandwidth sensor data acquisition or communication bursts. |
| Realtime Clock (RTC) | Calendar mode (2000–2099) with leap-year correction and binary counter mode - enables time-stamped logging and scheduled wake-up for energy harvesting applications. |
| Port Output Enable for GPT (POEG) | Hardware-controlled disable of PWM outputs during fault conditions - critical for safe motor control and LED driver shutdown in failure scenarios. |
Applications
| Smart Home Thermostat | Industrial Sensor Node |
|---|---|
Use Scenario: Wall-mounted HVAC controller with capacitive touch UI, ambient temperature/humidity sensing, and wireless reporting via CAN-connected gateway. IC Role / Device Role / Timing Role: Main system controller executing sensor fusion, touch response, and CAN message scheduling with RTC-based periodic reporting. Use Value: Integrated CTSU2 eliminates external touch IC; 12-bit ADC/DAC enables direct thermistor and analog sensor interfacing; CAN ensures noise-immune fieldbus connectivity. | Use Scenario: Battery-powered vibration/temperature monitor deployed in factory machinery with edge analytics and predictive maintenance alerts. IC Role / Device Role / Timing Role: Low-power data acquisition hub sampling analog accelerometers and thermistors, performing local FFT preprocessing, and transmitting results over CAN. Use Value: Sub-μA deep-sleep current extends 10-year battery life; DTC+ELC enables zero-CPU-cycle sensor readouts; AES encryption secures OTA firmware updates. |
| Energy Meter Front-End | BLDC Motor Control Module |
Use Scenario: DIN-rail mounted electricity meter with metrology-grade current/voltage sensing, tamper detection, and HPLC communication via SCI. IC Role / Device Role / Timing Role: System management MCU handling calibration storage, LCD driving, tamper interrupt response, and secure metering data aggregation. Use Value: Data flash (8 KB, 100k P/E cycles) stores lifetime calibration coefficients; LVD monitors supply brownout to prevent corrupted EEPROM writes; CAC validates clock integrity for accurate time-of-use billing. | Use Scenario: Compact fan/pump driver using hall-effect feedback and 3-phase PWM generation for brushless DC motors in HVAC or appliance applications. IC Role / Device Role / Timing Role: Real-time motor controller generating synchronized 3-phase PWM (GTOUUP/GTOULO etc.) with dead-time insertion and fault shutdown. Use Value: GPT32/GPT16 timers deliver <100 ns PWM resolution; POEG hardware disables outputs on overcurrent; AGT timers measure hall sensor period for speed regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2L1AB3CFL#BA0 | Same core, memory, peripherals; rated for -40°C to +105°C industrial temp range. | Required for extended-temperature deployments (e.g., under-hood automotive, outdoor utility meters). | Select when ambient operating temperature exceeds +85°C; otherwise identical footprint and firmware compatibility. |
| R7FA2E1A92DFL#AA0 | RA2E1 family; same 48-pin LQFP, but 128 KB flash, no CAN, no CTSU2, lower cost. | Suitable for cost-sensitive, non-CAN, non-touch applications like basic sensor nodes or lighting controllers. | Choose for simplified BOM and lower unit cost where CAN and capacitive touch are unnecessary. |
Compared with R7FA2L1AB2DFL#BA0, the R7FA2L1AB3CFL#BA0 offers extended temperature operation without design changes, while the R7FA2E1A92DFL#AA0 reduces cost and complexity by removing CAN and CTSU2 - making it ideal for non-automotive, non-HMI use cases.
Availability
R7FA2L1AB2DFL#BA0 is available at Aetrix Electronics and suitable for smart thermostats, industrial sensor nodes, energy meter front-ends, and BLDC motor control modules requiring stable component supply across long production lifecycles.
Supply support for R7FA2L1AB2DFL#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 is a global semiconductor leader delivering trusted microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RA2L1 group is designed for ultra-low-power, cost-sensitive embedded applications demanding integrated analog, security, and human-machine interface capabilities - targeting smart home, industrial sensing, and metering.
FAQ
What is the maximum operating frequency of the R7FA2L1AB2DFL#BA0?
The R7FA2L1AB2DFL#BA0 operates at a maximum frequency of 48 MHz using its Arm Cortex-M23 core. This speed is achievable with the internal high-speed on-chip oscillator (HOCO) or external crystal (1–20 MHz) with PLL multiplication. The device maintains full peripheral functionality and timing accuracy at this rate, as validated in Rev.1.60 of the R01DS0385EJ0160 datasheet.
Does the R7FA2L1AB2DFL#BA0 include hardware security features?
Yes, the R7FA2L1AB2DFL#BA0 integrates AES128/256 encryption engines, a True Random Number Generator (TRNG), Memory Protection Unit (MPU), register write protection, and Flash area protection. These features enable secure boot, encrypted firmware updates, and runtime data confidentiality - meeting foundational requirements for IEC 62443-3-3 and IEC 61508 certification paths.
What package type and pin count does the R7FA2L1AB2DFL#BA0 use?
The R7FA2L1AB2DFL#BA0 uses a 48-pin LQFP package (7 mm × 7 mm, 0.50 mm pitch), designated by the "FL" suffix in its part number. It provides 34 general-purpose I/O pins, 4 pins with 5-V tolerance, and dedicated analog, debug, and CAN interface pins - matching the pinout shown in Figure 1.6 of R01DS0385EJ0160.
Can the R7FA2L1AB2DFL#BA0 drive capacitive touch buttons directly?
Yes, the R7FA2L1AB2DFL#BA0 includes the Capacitive Sensing Unit (CTSU2), which supports up to 32 touch channels. Pins such as TS17 and TS18 are dedicated CTSU2 inputs. When configured with appropriate electrode layout and firmware (e.g., Renesas FSP CTSU driver), it enables robust touch button, slider, and proximity detection without external ICs or external RC networks.
Is an external CAN transceiver required for the R7FA2L1AB2DFL#BA0?
Yes, the R7FA2L1AB2DFL#BA0 contains only the CAN protocol controller (ISO 11898-1 compliant), not the physical layer transceiver. External transceivers such as the TJA1042T or SN65HVD230 must be used on the CTX0/CRX0 signals to achieve full CAN bus compliance, ESD protection, and differential signaling over cable.
R7FA2L1AB2DFL#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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2L1AB2DFL#BA0 FAQ
1.How can I place an order for R7FA2L1AB2DFL#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2L1AB2DFL#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 R7FA2L1AB2DFL#BA0 reliable?
The price and inventory of R7FA2L1AB2DFL#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2L1AB2DFL#BA0 is usually 5 days.
3.What payment methods are accepted for R7FA2L1AB2DFL#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2L1AB2DFL#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2L1AB2DFL#BA0?
R7FA2L1AB2DFL#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2L1AB2DFL#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 R7FA2L1AB2DFL#BA0?
For technical support, including R7FA2L1AB2DFL#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2L1AB2DFL#BA0 requirements.
6.How does Aetrix verify that R7FA2L1AB2DFL#BA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2L1AB2DFL#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 R7FA2L1AB2DFL#BA0 meets industry standards.
7.What is the process for return or replacement of R7FA2L1AB2DFL#BA0?
All R7FA2L1AB2DFL#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2L1AB2DFL#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 R7FA2L1AB2DFL#BA0 part is unused and in its original packaging.
Return procedure for R7FA2L1AB2DFL#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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