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Renesas R7FA2L1A92DFP#BA0
- Part No.:
- R7FA2L1A92DFP#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R7FA2L1A92DFP#BA0.pdf
- Description:
- IC MCU 32BIT 128KB FLSH 100LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:700
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Product details
Overview
R7FA2L1A92DFP#BA0 from Renesas Electronics is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller operating at up to 48 MHz, featuring 128 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, touch control, and robust communication are critical.
For engineers reviewing the R7FA2L1A92DFP#BA0 datasheet, R7FA2L1A92DFP#BA0 pinout, R7FA2L1A92DFP#BA0 application, or R7FA2L1A92DFP#BA0 equivalent, key selection criteria include its -40°C to +85°C industrial temperature grade, 100-pin LQFP package with 82 GPIOs (5-V tolerant), CTSU2-based touch channel count, CAN 2.0B compliance, and dual watchdog timers (WDT/IWDT) for functional safety.
Technical Context
The R7FA2L1A92DFP#BA0 implements the Armv8-M architecture with Memory Protection Unit (MPU) supporting 8 regions, enabling secure partitioning of firmware and data. Its clock system integrates multiple oscillators - including HOCO (48 MHz), SOSC (32.768 kHz), and IWDT-dedicated 15 kHz LOCO - with Clock Frequency Accuracy Measurement Circuit (CAC) for real-time oscillator calibration.
Peripheral integration centers on deterministic event-driven operation: Event Link Controller (ELC) enables direct hardware-to-hardware triggering without CPU intervention, while Data Transfer Controller (DTC) offloads memory transfers during SCI/SPI/IIC transactions. The CTSU2 supports up to 32 touch channels with noise immunity features, and the CAN module provides 32 mailboxes with FIFO and normal modes for automotive-grade messaging.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M23, 48 MHz max - delivers deterministic real-time response with TrustZone-enabled secure execution environment |
| Memory | 128 KB code flash / 8 KB data flash / 32 KB SRAM - supports field firmware updates and parameter storage with 100k P/E cycles |
| Analog | 12-bit ADC (19 ch) / 12-bit DAC (1 ch) / 2× ACMPLP / TSN - enables precision sensor signal acquisition and analog output control |
| Connectivity | CAN 2.0B ×1 / SCI ×5 / I2C ×2 / SPI ×2 - provides robust multi-protocol communication for industrial networks and peripherals |
| Human Interface | CTSU2 with up to 32 touch channels - delivers reliable capacitive touch sensing through dielectric overlays without mechanical buttons |
| Power & Safety | 1.6–5.5 V operation / ECC in SRAM / CAC / IWDT / LVD - ensures reliability across wide supply ranges and fault conditions |
| Package & Temp | 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), -40°C to +85°C - compatible with standard surface-mount assembly and industrial thermal environments |
Pinout & Package
Package: 100-pin LQFP (PLQP0100KB-B), 14 mm × 14 mm, 0.5 mm pitch, exposed pad recommended to be connected to VSS.
| 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 |
| XTAL / EXTAL | Main crystal oscillator interface | Supports external 1–20 MHz crystal; EXTAL accepts external clock input for synchronous timing sources |
| XCIN / XCOUT | Sub-clock oscillator interface | Connects to 32.768 kHz crystal for RTC and low-power wake-up timing |
| SWDIO / SWCLK | ARM Serial Wire Debug interface | Enables full debug, programming, and trace via 2-pin interface; no JTAG required |
| CTX0 / CRX0 | CAN transceiver interface | Direct connection to external CAN physical layer (e.g., TJA1042); requires external transceiver for bus communication |
| TS00–TS35-CFC | Capacitive touch sense inputs | CTSU2 dedicated pins supporting mutual/self-capacitance measurement; up to 32 channels usable in this package |
| P000–P015, P100–P115, etc. | General-purpose I/O | 82 configurable GPIOs with 5-V tolerance, pull-up, open-drain, and interrupt capability; supports KINT and ELC routing |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Sub-μA deep-sleep current with RAM retention and wake-up on AGT/CTSU/SCI events - extends battery life in portable HMI |
| Integrated CTSU2 | Hardware-accelerated capacitive sensing with built-in noise cancellation and auto-tuning - eliminates need for external touch controller IC |
| Dual watchdog system | Independent WDT (clocked by main system) and IWDT (dedicated 15 kHz oscillator) - provides layered fail-safe reset for safety-critical functions |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining (e.g., ADC conversion start → DTC transfer → SCI transmit) - reduces CPU load and latency |
| Security engine | AES128/256 encryption/decryption + True Random Number Generator (TRNG) - enables secure boot, firmware signing, and encrypted communication |
Applications
| Smart Home Control Panel | Industrial Sensor Node |
|---|---|
Use Scenario: Wall-mounted touch interface for HVAC, lighting, and security systems with BLE/Wi-Fi gateway connectivity. IC Role / Device Role / Timing Role: Primary MCU managing capacitive touch UI, local sensor fusion (temp/humidity), and protocol translation between CAN fieldbus and wireless modules. Use Value: CTSU2 enables robust touch through glass/plastic overlays; 128 KB flash accommodates OTA update stack and UI assets; CAN interface connects to legacy building automation controllers. | Use Scenario: Battery-powered environmental monitor deployed in remote factory zones measuring vibration, temperature, and air quality. IC Role / Device Role / Timing Role: Low-power edge node performing analog sensor conditioning, data logging, and scheduled CAN message transmission to PLC. Use Value: Sub-μA deep-sleep mode extends 10-year battery life; 12-bit ADC and TSN enable calibrated measurements; IWDT ensures recovery from brown-out or software hang. |
| Energy Meter Front-End | Motor Drive Auxiliary Controller |
Use Scenario: Smart electricity meter with tamper detection, tariff switching, and pulse output for legacy billing systems. IC Role / Device Role / Timing Role: Secondary controller handling metrology interface, display driver, optical port, and secure time-stamped event logging. Use Value: AES/TRNG secures firmware updates and consumption data; RTC with calendar mode tracks billing periods; 5-V tolerant GPIOs interface directly with opto-isolated pulse outputs. | Use Scenario: BLDC motor control board requiring hall-effect feedback, PWM generation, and fault monitoring alongside main motor MCU. IC Role / Device Role / Timing Role: Dedicated auxiliary controller managing GPT-based 3-phase PWM, hall sensor inputs (GTIU/GTIV/GTIW), and overcurrent protection signals. Use Value: GPT32 ×4 + POEG enables precise synchronized PWM with automatic output disable on fault; AGT timers measure hall period for speed calculation; CAC validates clock integrity during commutation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2L1AB2DFP#BA0 | 256 KB code flash (vs. 128 KB), same package/temp grade/peripherals | Required when firmware size exceeds 128 KB or future-proofing for feature expansion is needed | Select R7FA2L1AB2DFP#BA0 if bootloader, crypto stack, and application logic exceed 128 KB; otherwise R7FA2L1A92DFP#BA0 offers optimal cost/power balance |
| STM32L562VEQ6 | Arm Cortex-M33 with TrustZone, 512 KB flash, 256 KB SRAM, but no integrated CTSU or CAN FD | Better for high-security applications needing PSA Certified Level 3, weaker for touch+CAN combo use cases | Choose STM32L562VEQ6 only when PSA certification or larger memory footprint is mandatory; R7FA2L1A92DFP#BA0 better fits touch+CAN industrial nodes |
Compared with R7FA2L1AB2DFP#BA0, the R7FA2L1A92DFP#BA0 trades flash capacity for lower unit cost and identical low-power performance; versus STM32L562VEQ6, it delivers superior integrated HMI (CTSU2) and CAN 2.0B support with simpler toolchain alignment for Renesas ecosystem users.
Availability
R7FA2L1A92DFP#BA0 is available at Aetrix Electronics and suitable for smart home interfaces, industrial sensor nodes, and energy meter front-ends requiring stable component supply, long-term industrial temperature support, and qualified low-power MCU sourcing.
Supply support for R7FA2L1A92DFP#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 markets, with over 40 years of microcontroller innovation.
The RA2L1 group is designed specifically for ultra-low-power, cost-sensitive industrial and consumer HMI applications, integrating capacitive touch, security, and communication peripherals into a single scalable Arm Cortex-M23 platform.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2L1A92DFP#BA0?
The R7FA2L1A92DFP#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) and supports TrustZone for secure execution. This configuration delivers deterministic real-time performance while maintaining ultra-low power consumption - a key differentiator of the R7FA2L1A92DFP#BA0 in its class.
Does the R7FA2L1A92DFP#BA0 support capacitive touch sensing, and how many channels are available?
Yes, the R7FA2L1A92DFP#BA0 integrates the Capacitive Sensing Unit version 2 (CTSU2), supporting up to 32 touch channels in the 100-pin LQFP package. These channels are mapped to dedicated pins (e.g., TS00–TS35-CFC) and include hardware-accelerated noise cancellation and auto-tuning. The CTSU2 implementation in the R7FA2L1A92DFP#BA0 eliminates the need for external touch controller ICs in HMI designs.
What communication interfaces does the R7FA2L1A92DFP#BA0 include, and is CAN supported?
The R7FA2L1A92DFP#BA0 includes CAN 2.0B ×1, SCI ×5 (supporting UART, SPI, I2C, and smart card modes), I2C ×2, and SPI ×2. Its CAN module complies with ISO 11898-1, supports 32 mailboxes, and handles both standard (11-bit) and extended (29-bit) identifiers. An external CAN transceiver is required - the R7FA2L1A92DFP#BA0 provides only the controller layer.
What are the memory resources of the R7FA2L1A92DFP#BA0, and how is data flash endurance specified?
The R7FA2L1A92DFP#BA0 provides 128 KB of code flash memory, 8 KB of data flash memory rated for 100,000 program/erase cycles, and 32 KB of SRAM with optional ECC or parity protection. The data flash is optimized for frequent parameter storage (e.g., calibration values, device settings), while the code flash supports secure boot and OTA firmware updates - all integral to the R7FA2L1A92DFP#BA0's role in field-deployable devices.
What is the operating voltage range and temperature grade for the R7FA2L1A92DFP#BA0?
The R7FA2L1A92DFP#BA0 operates across a wide voltage range of 1.6 V to 5.5 V and is qualified for industrial temperature operation from -40°C to +85°C. Its 5-V tolerant GPIOs simplify interfacing with legacy 5-V peripherals, and the integrated switching regulator (DCDC) improves power efficiency in battery-powered applications - key attributes confirmed in the R7FA2L1A92DFP#BA0 datasheet Rev.1.60.
R7FA2L1A92DFP#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:
- 128KB (128K 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:
R7FA2L1A92DFP#BA0 FAQ
1.How can I place an order for R7FA2L1A92DFP#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2L1A92DFP#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 R7FA2L1A92DFP#BA0 reliable?
The price and inventory of R7FA2L1A92DFP#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2L1A92DFP#BA0 is usually 5 days.
3.What payment methods are accepted for R7FA2L1A92DFP#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2L1A92DFP#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2L1A92DFP#BA0?
R7FA2L1A92DFP#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2L1A92DFP#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 R7FA2L1A92DFP#BA0?
For technical support, including R7FA2L1A92DFP#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2L1A92DFP#BA0 requirements.
6.How does Aetrix verify that R7FA2L1A92DFP#BA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2L1A92DFP#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 R7FA2L1A92DFP#BA0 meets industry standards.
7.What is the process for return or replacement of R7FA2L1A92DFP#BA0?
All R7FA2L1A92DFP#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2L1A92DFP#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 R7FA2L1A92DFP#BA0 part is unused and in its original packaging.
Return procedure for R7FA2L1A92DFP#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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