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Renesas R7FA2L1AB3CFP#AA0
- Part No.:
- R7FA2L1AB3CFP#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R7FA2L1AB3CFP#AA0.pdf
- Description:
- IC MCU 32BIT 256KB FLSH 100LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:477
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Product details
Overview
R7FA2L1AB3CFP 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 industrial HMI, smart sensors, and battery-powered edge nodes requiring functional safety and secure firmware updates.
For engineers reviewing the R7FA2L1AB3CFP datasheet, R7FA2L1AB3CFP pinout, R7FA2L1AB3CFP application, or R7FA2L1AB3CFP equivalent, this page delivers verified specifications, package mapping to 100-pin LQFP, real-world use cases in touch-enabled control panels and CAN-based sensor networks, and validated alternative parts with documented feature trade-offs.
Technical Context
The R7FA2L1AB3CFP implements Armv8-M architecture with Memory Protection Unit (8 regions) and CoreSight™ debug infrastructure (SW-DP, MTB-M23). Its system-level timing relies on multiple clock sources including HOCO (48 MHz), SOSC (32.768 kHz), and IWDT-dedicated oscillator (15 kHz), enabling precise low-power operation across temperature ranges from −40°C to +105°C.
Peripheral integration includes five SCI modules supporting UART, SPI, I²C, and smart card protocols; dual I²C and SPI interfaces; one CAN 2.0A/B controller requiring external transceiver; and analog subsystems with CTSU2 for up to 32 touch channels, 19-channel 12-bit ADC, and dual low-power comparators - all coordinated via Event Link Controller (ELC) and Data Transfer Controller (DTC) to minimize CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 48 MHz max - enables deterministic real-time response with TrustZone for secure boot and peripheral isolation. |
| Memory | 256 KB code flash + 8 KB data flash + 32 KB SRAM with ECC - supports robust firmware storage, parameter retention, and runtime data integrity. |
| Analog Peripherals | 12-bit ADC (19 ch), 12-bit DAC (1 ch), ACMPLP ×2, TSN - enables precision sensor signal acquisition, analog output control, and on-die temperature monitoring. |
| Connectivity | CAN 2.0A/B, SCI ×5, I²C ×2, SPI ×2 - provides industrial-grade serial communication for distributed sensor networks and motor control systems. |
| Human Interface | CTSU2 with up to 32 touch channels - delivers reliable capacitive touch detection through dielectric overlays without mechanical buttons. |
| Power & Safety | 1.6–5.5 V operation, LVD with 3 thresholds, WDT/IWDT, CAC, CRC, DOC - ensures stable operation under voltage fluctuation and detects clock/timing faults. |
| Security | AES128/256, TRNG, register write protection, flash area protection - meets basic requirements for encrypted firmware updates and tamper-resistant key storage. |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), industrial temperature grade (−40°C to +105°C), Pb-free Sn terminal finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: VCC powers digital logic; AVCC0/AVSS0 isolate analog section for noise-sensitive ADC/DAC operation. |
| P010/VREFH0, P011/VREFL0 | Analog reference inputs | Configurable high/low reference pins for ADC full-scale range setting - critical for accurate sensor voltage measurement. |
| CTX0 / CRX0 | CAN transmit/receive | Differential CAN bus interface requiring external ISO 11898-compliant transceiver - enables robust multi-node communication in noisy environments. |
| SCK0_B / RXD1_B / TXD1_B | SCI0 clock/data I/O | Asynchronous UART interface with independent baud rate generator - supports full-duplex serial communication with FIFO buffers for continuous data streaming. |
| TS17 / TS18 / TS00–TS35-CFC | Capacitive touch sense inputs | CTSU2 dedicated pins supporting mutual/self-capacitance sensing - allows implementation of sliders, wheels, and proximity detection with minimal external components. |
| SWDIO / SWCLK | Debug interface | 2-pin Serial Wire Debug port - enables non-intrusive firmware debugging, flash programming, and real-time trace via standard JTAG/SWD tools. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Multiple low-power modes with sub-μA RTC+AGT wake-up capability - extends battery life in portable industrial monitors and wireless sensor endpoints. |
| Integrated switching regulator | VCC_DCDC, VLO, VSS_DCDC pins support internal DC-DC converter - reduces external component count and improves efficiency over linear regulators at higher loads. |
| Functional safety support | CAC, SRAM ECC, ADC self-diagnosis, IWDT with independent clock - satisfies IEC 61508 SIL-2 diagnostic coverage requirements for safety-critical subsystems. |
| Secure firmware execution | Arm TrustZone, flash protection registers, AES acceleration engine - enables secure bootloader, encrypted OTA updates, and isolated peripheral access control. |
| Flexible clock management | HOCO trim function, clock out support, multiple oscillator sources - simplifies timing design across varying load conditions and eliminates need for external crystals in cost-sensitive applications. |
Applications
| Industrial HMI Control Panel | Smart Building Sensor Node |
|---|---|
Use Scenario: Wall-mounted HVAC control panel with touch slider, temperature display, and CAN-connected zone actuators. IC Role / Device Role / Timing Role: Main application MCU handling capacitive touch input, local display refresh, CAN message routing, and real-time environmental monitoring. Use Value: CTSU2 enables seamless glass-front touch interface; 48 MHz core processes UI updates and sensor fusion within <10 ms latency; CAN module synchronizes with building BMS network. | Use Scenario: Battery-powered occupancy/motion sensor with ambient light and temperature sensing, reporting via CAN to gateway. IC Role / Device Role / Timing Role: Low-power sensor hub aggregating ADC readings, executing motion detection algorithm, and transmitting compressed data packets. Use Value: Sub-μA deep-sleep current with AGT wake-up extends 2-year battery life; integrated TSN and ADC eliminate external sensor ICs; CAC validates clock accuracy during wake cycles. |
| Motor Drive Feedback Module | Secure Firmware Update Endpoint |
Use Scenario: BLDC motor controller feedback unit measuring hall sensor signals, phase currents, and thermal status for closed-loop commutation. IC Role / Device Role / Timing Role: Real-time peripheral coordinator using GPT32 for PWM generation, GTIU/GTIV/GTIW for hall input capture, and ADC12 for current sensing. Use Value: Hardware-accelerated 3-phase PWM outputs (GTOUUP/GTOULO etc.) reduce CPU overhead; 12-bit ADC achieves ±0.5% current measurement accuracy at 1 MSps sampling. | Use Scenario: Field-deployed PLC I/O module receiving encrypted firmware patches over CAN and validating authenticity before flash update. IC Role / Device Role / Timing Role: Secure boot loader verifying signed images using AES-256 decryption and SHA-256 hash comparison prior to flash programming. Use Value: On-chip TRNG seeds cryptographic keys; flash area protection prevents overwrite of bootloader region; register write protection blocks accidental configuration changes during update. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2L1AB2DFP | Same core, memory, peripherals; rated for −40°C to +85°C instead of +105°C; identical 100-pin LQFP package. | Suitable for commercial/indoor environments where extended temperature range is unnecessary. | Select when operating ambient stays below +85°C and cost reduction is prioritized over extended thermal margin. |
| R7FA2E1A93CFP | RA2E1 family part: same 48 MHz Cortex-M23, but only 128 KB flash, 16 KB SRAM, no CAN, no CTSU2, reduced I/O count (64-pin LQFP). | Targeted at simpler, lower-cost control applications without touch or automotive-grade networking. | Choose when CAN and capacitive touch are not required and memory footprint fits within 128 KB code space. |
Compared with R7FA2L1AB2DFP, the R7FA2L1AB3CFP adds guaranteed operation up to +105°C for harsh industrial enclosures; compared with R7FA2E1A93CFP, it delivers double flash capacity, CAN connectivity, and full CTSU2 support - making it the only option among the three for thermally demanding, touch-enabled, CAN-networked systems.
Availability
R7FA2L1AB3CFP is available at Aetrix Electronics and suitable for industrial HMI, smart sensor nodes, and motor feedback modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R7FA2L1AB3CFP 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 IoT markets.
The RA2L1 group is designed for ultra-low-power, cost-sensitive industrial and consumer applications requiring security, functional safety, and human-machine interface capabilities - with R7FA2L1AB3CFP representing its highest-memory, extended-temperature variant.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2L1AB3CFP?
The R7FA2L1AB3CFP features an Arm Cortex-M23 core compliant with Armv8-M architecture and operates at a maximum frequency of 48 MHz. This core includes TrustZone security extensions, an 8-region Memory Protection Unit (MPU), and CoreSight debug infrastructure. The R7FA2L1AB3CFP uses this architecture to deliver deterministic real-time performance while enabling secure partitioning of trusted and untrusted code execution environments.
Does the R7FA2L1AB3CFP include hardware support for capacitive touch sensing?
Yes, the R7FA2L1AB3CFP integrates the Capacitive Sensing Unit version 2 (CTSU2), supporting up to 32 touch channels in mutual or self-capacitance mode. It includes dedicated pins (e.g., TS00–TS35-CFC) and built-in charge-transfer measurement circuitry. The R7FA2L1AB3CFP's CTSU2 enables robust touch detection through glass or plastic overlays without external components, making it ideal for industrial control panels and appliance interfaces.
What are the supported communication interfaces on the R7FA2L1AB3CFP?
The R7FA2L1AB3CFP supports CAN 2.0A/B, five Serial Communications Interfaces (SCI) with UART/SPI/I²C/smart card modes, two I²C bus interfaces, two SPI interfaces, and a Realtime Clock (RTC) with calendar mode. All interfaces are accessible via dedicated pins on the 100-pin LQFP package. The R7FA2L1AB3CFP requires an external CAN transceiver for physical layer compliance, and its SCI modules include FIFO buffers for high-throughput serial data handling.
What is the operating temperature range and package type of the R7FA2L1AB3CFP?
The R7FA2L1AB3CFP is packaged in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) and is rated for operation from −40°C to +105°C. This extended industrial temperature range makes the R7FA2L1AB3CFP suitable for deployment in harsh environments such as factory automation equipment, outdoor kiosks, and motor drive enclosures. The Pb-free Sn terminal finish complies with RoHS directives.
How does the R7FA2L1AB3CFP support functional safety and security requirements?
The R7FA2L1AB3CFP includes multiple hardware features for functional safety and security: ECC on SRAM, CAC for clock accuracy validation, ADC self-diagnosis, IWDT with independent oscillator, CRC calculator, DOC for data integrity checks, and AES128/256 acceleration. These features enable compliance with IEC 61508 SIL-2 and support secure boot, encrypted firmware updates, and tamper-resistant key storage - all implemented directly within the R7FA2L1AB3CFP silicon without external co-processors.
R7FA2L1AB3CFP#AA0 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, SmartCard, UART/USART
- Peripherals:
- AES, Capacitive Touch, DMA, LVD, POR, PWM, Temp Sensor, TRNG, WDT
- Number of I/O:
- 85
- 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:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2L1AB3CFP#AA0 FAQ
1.How can I place an order for R7FA2L1AB3CFP#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2L1AB3CFP#AA0 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 R7FA2L1AB3CFP#AA0 reliable?
The price and inventory of R7FA2L1AB3CFP#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2L1AB3CFP#AA0 is usually 5 days.
3.What payment methods are accepted for R7FA2L1AB3CFP#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2L1AB3CFP#AA0 transactions.
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Once your R7FA2L1AB3CFP#AA0 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 R7FA2L1AB3CFP#AA0?
For technical support, including R7FA2L1AB3CFP#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2L1AB3CFP#AA0 requirements.
6.How does Aetrix verify that R7FA2L1AB3CFP#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2L1AB3CFP#AA0 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 R7FA2L1AB3CFP#AA0 meets industry standards.
7.What is the process for return or replacement of R7FA2L1AB3CFP#AA0?
All R7FA2L1AB3CFP#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2L1AB3CFP#AA0, 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 R7FA2L1AB3CFP#AA0 part is unused and in its original packaging.
Return procedure for R7FA2L1AB3CFP#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA2L1AB3CFP#AA0 Tags
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