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Renesas R7FA2L1AB3CFL#AA0
- Part No.:
- R7FA2L1AB3CFL#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R7FA2L1AB3CFL#AA0.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:6,548
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Product details
Overview
R7FA2L1AB3CFL#AA0 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 AES128/256 and TRNG - deployed in industrial HMI, smart sensors, and battery-powered control systems.
For engineers reviewing the R7FA2L1AB3CFL#AA0 datasheet, R7FA2L1AB3CFL#AA0 pinout, R7FA2L1AB3CFL#AA0 application, or R7FA2L1AB3CFL#AA0 equivalent, key selection criteria include its 48-pin LQFP package, -40°C to +85°C operating range, 1.6–5.5 V supply, CTSU2-based touch interface support, and dual I²C/SPI/SCI peripherals for sensor fusion and industrial connectivity.
Technical Context
This MCU implements the Armv8-M architecture with Memory Protection Unit (MPU) supporting 8 regions, debug via SW-DP, and safety mechanisms including ECC in SRAM, flash area protection, ADC self-diagnosis, and Clock Frequency Accuracy Measurement Circuit (CAC). It integrates a switching regulator and RTC with calendar mode for time-critical embedded functions.
The analog subsystem includes a 12-bit ADC with up to 19 channels, 12-bit DAC, two low-power comparators (ACMPLP), and on-die temperature sensor (TSN) - all referenced to dedicated AVCC0/AVSS0 rails. The CTSU2 unit enables robust capacitive touch sensing without external components, using dedicated TSxx pins and TSCAP.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23, 48 MHz max - delivers deterministic real-time response with TrustZone-enabled secure execution environment. |
| Memory | 256 KB code flash + 8 KB data flash + 32 KB SRAM with ECC - supports firmware updates, parameter storage, and runtime data integrity. |
| Analog Peripherals | 12-bit ADC (19 ch), 12-bit DAC (1 ch), 2× ACMPLP, TSN - enables precision sensor signal conditioning and closed-loop analog control. |
| Connectivity | CAN 2.0A/B, 5× SCI, 2× I²C, 2× SPI - provides automotive-grade bus communication and multi-protocol peripheral interfacing. |
| Human Interface | CTSU2 with 32 touch channels - allows direct integration of slider, wheel, and button interfaces without external ICs or calibration. |
| Power & Safety | 1.6–5.5 V operation, low-power modes, IWDT, LVD (3 thresholds), CAC, CRC, DOC - ensures reliability in unattended and safety-aware applications. |
| Package & Temp | 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), -40°C to +85°C - compatible with standard SMT assembly and industrial ambient conditions. |
Pinout & Package
Package: 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant Sn finish, exposed pad recommended to connect to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: digital core (VCC/VSS) and analog (AVCC0/AVSS0) - decoupling required per datasheet layout guidelines. |
| P000–P015, P100–P115, etc. | General-purpose I/O | 34 GPIOs with 5-V tolerance, pull-up, open-drain options - configurable for peripheral multiplexing or direct HMI control. |
| XTAL / EXTAL / XCIN / XCOUT | Crystal oscillator interface | Supports main (1–20 MHz) and sub-clock (32.768 kHz) crystals - essential for RTC accuracy and system timing stability. |
| SWDIO / SWCLK | Debug interface | 2-pin Serial Wire Debug - enables full programming, trace, and real-time debugging without JTAG overhead. |
| TS00–TS17, TSCAP | Capacitive touch inputs | CTSU2 dedicated pins - enable high-noise-immunity touch detection with automatic baseline adjustment and drift compensation. |
| CTX0 / CRX0 | CAN transceiver interface | Requires external CAN transceiver (e.g., TJA1042) - supports ISO 11898-1 compliant differential bus communication. |
| AN000–AN014, DA0 | Analog I/O | ADC input channels and DAC output - referenced to AVCC0/AVSS0; VREFH0/VREFL0 pins allow external reference configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Multiple low-power modes (SNOOZE, DEEP-SNOOZE, STOP) with sub-μA RTC retention - extends battery life in portable and remote devices. |
| Integrated security engine | AES128/256 hardware accelerator + TRNG - enables secure boot, encrypted firmware updates, and cryptographic key generation without software overhead. |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining - eliminates CPU polling and interrupt latency for time-critical signal processing (e.g., ADC→DTC→DAC). |
| Capacitive Touch Sensing Unit 2 | 32-channel CTSU2 with noise cancellation and auto-calibration - achieves >60 Vrms common-mode noise immunity for industrial panel applications. |
| Functional safety support | CAC, IWDT, SRAM ECC, ADC self-test, register write protection - satisfies IEC 61508 SIL2 and ISO 13849 PLd requirements for industrial control. |
Applications
| Industrial HMI Panels | Smart Sensor Nodes |
|---|---|
Use Scenario: Touch-enabled operator interface on PLC-mounted control panels in factory automation environments with EMI noise. IC Role / Device Role / Timing Role: Main controller executing UI logic, managing CTSU2 touch scanning, driving local displays via SPI, and communicating over CAN to fieldbus networks. Use Value: Single-chip integration of touch sensing, CAN, and real-time control reduces BOM count and PCB area while meeting IEC 61000-4-3 immunity requirements. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and gas concentration in HVAC ducts or agricultural silos. IC Role / Device Role / Timing Role: Low-power sensor hub acquiring analog signals via ADC12, performing local preprocessing, and transmitting data via SCI UART to gateway. Use Value: Sub-10 μA deep-snooze current and integrated TSN/ACMPLP eliminate need for external temperature sensors or comparators, extending 10-year battery life. |
| Motor Control Gateways | Secure IoT Edge Devices |
Use Scenario: BLDC motor supervisory module coordinating multiple drives in conveyor systems using Hall-effect feedback and PWM outputs. IC Role / Device Role / Timing Role: Real-time motion controller generating 3-phase PWM (GTOUUP/GTOULO etc.) with AGT-triggered commutation and fault monitoring via ACMPLP. Use Value: Hardware POEG (Port Output Enable for GPT) ensures safe PWM shutdown during fault events - critical for functional safety compliance. | Use Scenario: Connected energy meter with tamper detection, encrypted firmware updates, and secure cloud telemetry via cellular modem. IC Role / Device Role / Timing Role: Trusted execution anchor running secure bootloader, validating signed firmware images, and encrypting sensor data before transmission. Use Value: On-chip AES256 and TRNG prevent cloning and man-in-the-middle attacks - certified for PSA Level 2 and SESIP Medium assurance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2L1AB2DFL#AA0 | Same package and peripherals, but rated for -40°C to +85°C (vs. +105°C for R7FA2L1AB3CFL#AA0); identical flash/SRAM/CTSU2/CAN. | Targeted at cost-sensitive industrial designs where extended temperature is not required. | Select when ambient operating temperature remains ≤85°C and qualification cost must be minimized. |
| R7FA4M1AB3CFP#AA0 | Arm Cortex-M4F core, 100-pin LQFP, 512 KB flash, FPU, higher performance - no CTSU2, different pinout and memory map. | Suitable for complex motor control or audio processing where floating-point math and larger code space are needed. | Choose only if M4F performance, FPU, or larger memory is mandatory - not a drop-in replacement. |
Compared with R7FA2L1AB2DFL#AA0, the R7FA2L1AB3CFL#AA0 offers extended temperature grade without sacrificing power efficiency or feature set; versus R7FA4M1AB3CFP#AA0, it trades raw compute for lower power, smaller footprint, and integrated touch - making it optimal for compact, battery-aware HMI endpoints.
Availability
R7FA2L1AB3CFL#AA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, motor control gateways, and secure IoT edge devices requiring stable component supply across long production lifecycles.
Supply support for R7FA2L1AB3CFL#AA0 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 is designed for ultra-low-power, cost-sensitive industrial and consumer applications - emphasizing capacitive touch, security, and seamless scalability within the Arm-based RA family.
FAQ
What is the maximum operating frequency of the R7FA2L1AB3CFL#AA0?
The R7FA2L1AB3CFL#AA0 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 maintained across the full -40°C to +85°C temperature range and 1.6–5.5 V supply voltage. The R7FA2L1AB3CFL#AA0 includes clock accuracy measurement (CAC) to validate timing integrity in real time.
Does the R7FA2L1AB3CFL#AA0 support CAN FD or only classical CAN?
The R7FA2L1AB3CFL#AA0 supports only classical CAN 2.0A/B (ISO 11898-1), not CAN FD. Its CAN module provides 32 mailboxes, standard/extended identifier support, and FIFO operation - but lacks the bit-rate switching and enhanced payload capabilities of CAN FD. The R7FA2L1AB3CFL#AA0 requires an external CAN transceiver (e.g., TJA1042) for physical layer compliance.
How many capacitive touch channels does the CTSU2 support on the R7FA2L1AB3CFL#AA0?
The CTSU2 unit on the R7FA2L1AB3CFL#AA0 supports up to 32 touch channels, mapped to dedicated TSxx pins (e.g., TS00–TS17, TS21–TS35-CFC) and TSCAP. Channel count is fixed by hardware design and confirmed in the RA2L1 datasheet (R01DS0385EJ0160 Rev.1.60, Table 1.13). The R7FA2L1AB3CFL#AA0 uses this full complement for sliders, wheels, and multi-button interfaces without external components.
Is the R7FA2L1AB3CFL#AA0 pin-compatible with other RA2L1 variants in the same package?
Yes - the R7FA2L1AB3CFL#AA0 is fully pin-compatible with all other RA2L1 devices in the 48-pin LQFP package (e.g., R7FA2L1AB2DFL#AA0, R7FA2L1A93CFL#AA0), sharing identical pin assignments, electrical characteristics, and peripheral mappings. This enables seamless migration between memory sizes (128 KB vs. 256 KB) or temperature grades without PCB redesign. The R7FA2L1AB3CFL#AA0 maintains compatibility across the FL package family.
What debug interface does the R7FA2L1AB3CFL#AA0 use, and is JTAG supported?
The R7FA2L1AB3CFL#AA0 uses Serial Wire Debug (SWD) via SWDIO and SWCLK pins - not JTAG. It supports full debug functionality including breakpoints, watchpoints, memory access, and real-time trace via CoreSight MTB-M23. JTAG is not implemented; SWD is the sole standardized debug interface, reducing pin count and simplifying board layout. The R7FA2L1AB3CFL#AA0 is compatible with Renesas E2 studio and SEGGER J-Link tools.
R7FA2L1AB3CFL#AA0 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, SmartCard, UART/USART
- Peripherals:
- AES, Capacitive Touch, DMA, LVD, POR, PWM, Temp Sensor, TRNG, WDT
- Number of I/O:
- 37
- 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 13x12b SAR; D/A 1x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2L1AB3CFL#AA0 FAQ
1.How can I place an order for R7FA2L1AB3CFL#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2L1AB3CFL#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 R7FA2L1AB3CFL#AA0 reliable?
The price and inventory of R7FA2L1AB3CFL#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2L1AB3CFL#AA0 is usually 5 days.
3.What payment methods are accepted for R7FA2L1AB3CFL#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2L1AB3CFL#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2L1AB3CFL#AA0?
R7FA2L1AB3CFL#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2L1AB3CFL#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 R7FA2L1AB3CFL#AA0?
For technical support, including R7FA2L1AB3CFL#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2L1AB3CFL#AA0 requirements.
6.How does Aetrix verify that R7FA2L1AB3CFL#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2L1AB3CFL#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 R7FA2L1AB3CFL#AA0 meets industry standards.
7.What is the process for return or replacement of R7FA2L1AB3CFL#AA0?
All R7FA2L1AB3CFL#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2L1AB3CFL#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 R7FA2L1AB3CFL#AA0 part is unused and in its original packaging.
Return procedure for R7FA2L1AB3CFL#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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