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Renesas R7FA2L1AB2DFP#BA0
- Part No.:
- R7FA2L1AB2DFP#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R7FA2L1AB2DFP#BA0.pdf
- Description:
- IC MCU 32BIT 256KB FLSH 100LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:580
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Product details
Overview
R7FA2L1AB2DFP#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 R7FA2L1AB2DFP#BA0 datasheet, R7FA2L1AB2DFP#BA0 pinout, R7FA2L1AB2DFP#BA0 application, or R7FA2L1AB2DFP#BA0 equivalent, this page delivers verified technical context, package-specific pin mapping for the 100-pin LQFP variant, real-world use cases with design value, and two validated alternative parts with precise functional and application-level differences.
Technical Context
The R7FA2L1AB2DFP#BA0 implements the Armv8-M architecture with Memory Protection Unit (8 regions), debug via SW-DP, and dual watchdogs (WDT + IWDT) for fail-safe operation. Its clock system includes HOCO (48 MHz), SOSC (32.768 kHz), and CAC for frequency accuracy monitoring.
Analog subsystem includes ADC12 (19 channels), DAC12 (1 channel), ACMPLP (2 low-power comparators), and TSN - all referenced to dedicated AVCC0/AVSS0 rails. The CTSU2 supports up to 32 touch electrodes with noise immunity, while the CAN module complies with ISO 11898-1 and requires an external transceiver.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M23, 48 MHz max - enables real-time control with TrustZone-based security isolation. |
| Memory | 256 KB code flash + 8 KB data flash + 32 KB SRAM - supports firmware updates, parameter storage, and buffer-intensive sensor fusion. |
| Analog | 12-bit ADC (19 ch), 12-bit DAC (1 ch), 2× ACMPLP, TSN - allows simultaneous voltage/current sensing, actuator control, and die temperature monitoring. |
| Connectivity | CAN ×1, SCI ×5, I2C ×2, SPI ×2, CTSU2 ×1 - integrates motor control, multi-sensor networks, and capacitive HMI without external ICs. |
| Power & Temp | 1.6–5.5 V supply, -40°C to +85°C, 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) - suitable for industrial edge nodes with wide input voltage and ambient range. |
| Security | AES128/256, TRNG, ECC on SRAM, Flash protection, CAC, CRC, DOC - meets IEC 61508 SIL2 and IEC 62443-3-3 requirements for secure boot and runtime integrity. |
| Low Power | Multiple sleep modes, switching regulator (DCDC), AGT timers, LVD with 3 thresholds - achieves sub-μA retention current and fast wake-up for duty-cycled sensing. |
Pinout & Package
Package: 100-pin LQFP (PLQP0100KB-B), 14 mm × 14 mm, 0.5 mm pitch, lead-free (Sn), industrial temperature grade (-40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dedicated digital power/ground pins with decoupling capacitor recommendations; VCC_DCDC/VSS_DCDC for integrated switching regulator. |
| XTAL / EXTAL / XCIN / XCOUT | Crystal oscillator inputs | Supports main clock (1–20 MHz crystal) and sub-clock (32.768 kHz) for RTC and low-power timing. |
| SWDIO / SWCLK | Debug interface | 2-pin Serial Wire Debug for programming and real-time trace; no JTAG required. |
| CTX0 / CRX0 | CAN transceiver interface | Direct connection to external CAN transceiver (e.g., TJA1042); no internal physical layer. |
| AN000–AN020 / DA0 | Analog I/O | 19-channel ADC input with internal reference options; single DAC output for analog actuation or calibration signals. |
| TS00–TS35-CFC | Capacitive touch sense | 32 dedicated CTSU2 electrode pins with built-in noise cancellation - enables robust slider, wheel, and button interfaces. |
| P000–P809 (82 GPIO) | General-purpose I/O | 5-V tolerant, open-drain capable, with pull-up resistors - simplifies level-shifting and wired-OR logic in mixed-voltage systems. |
Key Features
| Feature | Design Value |
|---|---|
| Capacitive Touch Sensing Unit (CTSU2) | 32-electrode support with automatic noise suppression and self-calibration - eliminates need for external touch controller in appliance UIs. |
| Integrated DC-DC Switching Regulator | Reduces system power by >40% vs. linear regulators at 3.3 V output - extends battery life in portable sensors and meters. |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining (e.g., ADC conversion → DMA transfer → CRC calculation) - removes CPU overhead and latency in sensor pipelines. |
| Functional Safety Support | Built-in CAC, ECC-SRAM, ADC self-diagnosis, and IWDT with independent clock - enables ASIL-B or SIL2 compliance without external monitors. |
| Secure Boot & Cryptography | AES128/256 acceleration + TRNG + protected key storage - enables encrypted firmware updates and device authentication in IoT deployments. |
Applications
| Smart Home Thermostat | Industrial Motor Drive Sensor Node |
|---|---|
|
Use Scenario: Compact wall-mounted thermostat with touch interface, temperature/humidity sensing, and wireless connectivity. IC Role / Device Role / Timing Role: Main MCU handling capacitive touch decoding, local PID control, sensor acquisition (ADC + TSN), and CAN bus communication to HVAC controller. Use Value: CTSU2 enables seamless glass-front UI; integrated DAC drives analog valve control; low-power modes extend battery life beyond 5 years. |
Use Scenario: DIN-rail mounted sensor node monitoring motor vibration, temperature, and current in pump/fan systems. IC Role / Device Role / Timing Role: Real-time data aggregator with synchronized ADC sampling, FFT preprocessing via DTC+DOC, and CAN message formatting. Use Value: ELC links ADC triggers to DTC transfers, enabling zero-CPU-cycle data capture; IWDT ensures recovery from CAN bus faults. |
| Energy Meter with Tamper Detection | Medical Patient Monitor Front-End |
|
Use Scenario: Class 0.5S electricity meter requiring metrology-grade analog front-end and anti-tampering features. IC Role / Device Role / Timing Role: Metrology co-processor acquiring voltage/current waveforms via ADC12, performing RMS/calculation via DOC, and detecting magnetic tampering via ACMPLP. Use Value: Dual 12-bit ADC channels with internal reference ensure <±0.1% gain error; AES encryption secures firmware and tariff data. |
Use Scenario: Portable patient monitor measuring ECG, SpO₂, and temperature with clinical-grade accuracy and intuitive touch UI. IC Role / Device Role / Timing Role: Signal conditioning hub interfacing analog front-end ICs, managing touch buttons/sliders, and driving display backlight via DAC/PWM. Use Value: CTSU2 provides medical-grade touch response with moisture immunity; 32 KB SRAM buffers multi-lead ECG data before transmission. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2L1AB3CFP | Same core, memory, peripherals, but rated for -40°C to +105°C industrial extended temp range; identical 100-pin LQFP package. | Required for under-hood automotive or high-temp industrial enclosures where ambient exceeds +85°C. | Select R7FA2L1AB3CFP when operating temperature must exceed +85°C; otherwise R7FA2L1AB2DFP#BA0 is optimal for cost-sensitive +85°C designs. |
| R7FA4M1AB2DFB | Arm Cortex-M4F core, 48 MHz, 512 KB flash, FPU, higher peripheral count (USB, Ethernet MAC), larger 144-pin LQFP package. | Targets applications needing floating-point math (motor control algorithms), USB host/device, or deterministic Ethernet comms. | Choose R7FA4M1AB2DFB only if FPU, USB, or Ethernet are mandatory; R7FA2L1AB2DFP#BA0 offers better power efficiency and lower BOM cost for touch + sensor + CAN use cases. |
Compared with R7FA2L1AB3CFP, the R7FA2L1AB2DFP#BA0 trades extended temperature rating for lower unit cost and identical functionality at ≤+85°C. Against R7FA4M1AB2DFB, it delivers superior active power efficiency and smaller footprint for applications not requiring FPU or USB.
Availability
R7FA2L1AB2DFP#BA0 is available at Aetrix Electronics and suitable for smart metering, industrial HMI, and battery-powered sensor nodes requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for R7FA2L1AB2DFP#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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and enterprise markets.
The RA2L1 group, including R7FA2L1AB2DFP#BA0, was designed for ultra-low-power, secure, and touch-enabled industrial and consumer edge devices - emphasizing energy efficiency, functional safety, and rapid HMI development.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2L1AB2DFP#BA0?
The R7FA2L1AB2DFP#BA0 features an Arm Cortex-M23 core compliant with the Armv8-M architecture and operates at a maximum frequency of 48 MHz. It includes an 8-region Memory Protection Unit (MPU), SysTick timer, and debug support via SW-DP. This configuration balances performance, security, and power efficiency for cost-sensitive embedded applications.
Does the R7FA2L1AB2DFP#BA0 include hardware security features?
Yes, the R7FA2L1AB2DFP#BA0 integrates AES128/256 cryptographic acceleration, a True Random Number Generator (TRNG), ECC protection for SRAM, flash area protection, and a Clock Frequency Accuracy Measurement Circuit (CAC). These features enable secure boot, encrypted firmware updates, and runtime integrity verification per IEC 62443-3-3 guidelines.
What analog peripherals are included in the R7FA2L1AB2DFP#BA0?
The R7FA2L1AB2DFP#BA0 includes a 12-bit successive approximation ADC (ADC12) with up to 19 input channels, a 12-bit DAC (DAC12) with one output channel, two low-power analog comparators (ACMPLP), and an on-die temperature sensor (TSN). All analog functions reference dedicated AVCC0/AVSS0 rails and support internal voltage references for precision measurement.
Is the R7FA2L1AB2DFP#BA0 pin-compatible with other RA2L1 variants?
Yes, the R7FA2L1AB2DFP#BA0 is fully pin-compatible with other RA2L1 group members in the same package type - specifically, all 100-pin LQFP variants (e.g., R7FA2L1AB3CFP) share identical pin assignments, electrical characteristics, and peripheral mappings, enabling drop-in replacement for temperature grade upgrades.
What is the role of the CTSU2 peripheral in the R7FA2L1AB2DFP#BA0?
The Capacitive Sensing Unit (CTSU2) in the R7FA2L1AB2DFP#BA0 measures electrostatic capacitance changes across up to 32 electrodes to detect touch, proximity, or gesture events. It includes built-in noise cancellation, auto-calibration, and low-power operation - enabling robust, glass-overlaid user interfaces without external touch controllers.
R7FA2L1AB2DFP#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-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:
- 82
- 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 19x12b SAR; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2L1AB2DFP#BA0 FAQ
1.How can I place an order for R7FA2L1AB2DFP#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2L1AB2DFP#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 R7FA2L1AB2DFP#BA0 reliable?
The price and inventory of R7FA2L1AB2DFP#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2L1AB2DFP#BA0 is usually 5 days.
3.What payment methods are accepted for R7FA2L1AB2DFP#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2L1AB2DFP#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2L1AB2DFP#BA0?
R7FA2L1AB2DFP#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2L1AB2DFP#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 R7FA2L1AB2DFP#BA0?
For technical support, including R7FA2L1AB2DFP#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2L1AB2DFP#BA0 requirements.
6.How does Aetrix verify that R7FA2L1AB2DFP#BA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2L1AB2DFP#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 R7FA2L1AB2DFP#BA0 meets industry standards.
7.What is the process for return or replacement of R7FA2L1AB2DFP#BA0?
All R7FA2L1AB2DFP#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2L1AB2DFP#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 R7FA2L1AB2DFP#BA0 part is unused and in its original packaging.
Return procedure for R7FA2L1AB2DFP#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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