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Renesas R7FA2L1A92DFN#AA0
- Part No.:
- R7FA2L1A92DFN#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R7FA2L1A92DFN#AA0.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 80LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:753
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Product details
Overview
R7FA2L1A92DFN#AA0 from Renesas 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), and integrated CAN 2.0B interface - deployed in industrial HMI panels, smart sensor nodes, and battery-powered control systems.
For engineers reviewing the R7FA2L1A92DFN#AA0 datasheet, R7FA2L1A92DFN#AA0 pinout, R7FA2L1A92DFN#AA0 application, or R7FA2L1A92DFN#AA0 equivalent, key selection considerations include its -40°C to +85°C industrial temperature rating, 80-pin LQFP package with 66 GPIOs (5-V tolerant on 5 pins), CTSU2-based touch interface support, and hardware AES-128/256 + TRNG for secure firmware updates.
Technical Context
The R7FA2L1A92DFN#AA0 implements Armv8-M architecture with Memory Protection Unit (8 regions) and CoreSight™ MTB-M23 trace, enabling certified functional safety designs. Its system-level timing relies on dual-clock domain operation: main oscillator (1–20 MHz) and sub-clock (32.768 kHz), with Clock Frequency Accuracy Measurement Circuit (CAC) for real-time clock calibration.
Peripheral integration follows Renesas' RA2L1 group architecture: five SCI modules supporting UART/IIC/SPI/smart card modes, two I²C buses, two SPI controllers, one CAN controller requiring external transceiver, and dedicated low-power analog blocks including two ACMPLP comparators and a die temperature sensor (TSN) routed to ADC12.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M23, 48 MHz max - enables deterministic real-time control with TrustZone security isolation |
| 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 ADC12 (17-channel), 12-bit DAC12 (1-channel), TSN, 2× ACMPLP - enables sensor signal conditioning and closed-loop analog control |
| Connectivity | CAN 2.0B (32 mailboxes), 5× SCI, 2× I²C, 2× SPI - provides robust multi-node industrial bus communication |
| Human Interface | CTSU2 capacitive touch unit (30 electrodes) - delivers noise-immune button/slider/gesture detection without overlay sensors |
| Power & Safety | 1.6–5.5 V operation, ECC/SRAM parity, IWDT, CAC, CRC, DOC - meets IEC 61508 SIL-2 functional safety requirements |
| Package | 80-pin LQFP (12 mm × 12 mm, 0.5 mm pitch), -40°C to +85°C - compatible with standard reflow profiles and automated optical inspection |
Pinout & Package
Package: 80-pin LQFP (PLQP0080KB-B), 12 mm × 12 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 |
| P010/VREFH0 P011/VREFL0 | Analog reference inputs | Configurable high/low reference for ADC12; internal reference selectable when pins tied to AVCC0/AVSS0 |
| CRX0 / CTX0 | CAN physical layer interface | Requires external ISO 11898-compliant CAN transceiver (e.g., TJA1042T/3); not directly bus-connected |
| SCK0_B / RXD1_B / TXD1_B | SCI0 asynchronous serial interface | Full-duplex UART mode with independent baud rate generator; FIFO-enabled for continuous streaming |
| P300/SWCLK P108/SWDIO | ARM Serial Wire Debug | 2-pin SWD interface for programming, debugging, and real-time trace via CoreSight MTB-M23 |
| TS17 / TS18 | Capacitive touch sense inputs | CTSU2 electrode channels supporting mutual/self-capacitance measurement; driven by internal charge-transfer circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 120 µA/MHz active current; 0.25 µA deep standby with RTC + 8 KB SRAM retention - extends battery life in portable devices |
| Hardware security engine | AES-128/256 encryption + True Random Number Generator (TRNG) - enables secure boot, encrypted OTA updates, and key derivation |
| Event Link Controller (ELC) | Direct peripheral-to-peripheral triggering without CPU intervention - reduces latency in time-critical motor control loops |
| Capacitive Touch Sensing Unit v2 | 30-electrode support with automatic noise cancellation and proximity detection - eliminates mechanical buttons in harsh environments |
| Functional safety compliance | Built-in CAC, CRC calculator, DOC, IWDT, and memory parity/ECC - simplifies certification to IEC 61508 and UL 60730 |
Applications
| Industrial HMI Panels | Smart Sensor Nodes |
|---|---|
Use Scenario: Touch-enabled operator interface for PLC-controlled machinery with IP65-rated front panel. IC Role / Device Role / Timing Role: Main application processor handling CTSU2 touch input, CAN bus communication with drive units, and real-time display refresh via SPI. Use Value: Integrated CTSU2 eliminates external touch controller IC; CAN interface enables direct connection to factory floor networks without protocol gateways. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ in HVAC ducts. IC Role / Device Role / Timing Role: System-on-chip managing sensor acquisition (ADC12 + TSN), local decision logic, and low-duty-cycle CAN reporting. Use Value: 0.25 µA deep standby extends 2xAA battery life beyond 5 years; hardware AES secures sensor data during wireless backhaul. |
| Motor Control Gate Drivers | Secure Firmware Update Modules |
Use Scenario: Compact BLDC motor driver board for fan/pump applications with Hall-effect feedback. IC Role / Device Role / Timing Role: Real-time PWM generation (GPT32 × 4) synchronized to Hall sensor inputs (GTIU/GTIV/GTIW), with AGT timers for commutation timing. Use Value: Hardware POEG (Port Output Enable) disables GPT outputs during fault conditions - prevents shoot-through in half-bridge drivers. | Use Scenario: Trusted update agent in medical infusion pumps validating signed firmware images before execution. IC Role / Device Role / Timing Role: Secure bootloader verifying SHA-256 signatures using hardware TRNG and AES-256 key wrapping. Use Value: On-chip ROM-based secure boot root-of-trust ensures only authenticated code executes - meets FDA cybersecurity guidance for Class II devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2L1AB2DFN#AA0 | 256 KB code flash (vs. 128 KB), same package/peripherals - no change to PCB or firmware API | Supports larger RTOS deployments and dual-bank firmware updates | Select when future firmware growth or A/B update capability is required |
| STM32L562VEQ6 | Arm Cortex-M33 core, TrustZone, 512 KB flash, but lacks integrated CTSU2 and CAN FD support | Requires external touch controller and CAN transceiver; higher BOM cost in touch+CAN systems | Prefer for cloud-connected edge nodes needing TLS acceleration, not HMI-integrated control |
Compared with R7FA2L1AB2DFN#AA0, the R7FA2L1A92DFN#AA0 trades flash capacity for lower unit cost while retaining identical peripheral set and pinout; versus STM32L562VEQ6, it delivers superior integration for touch-and-CAN industrial control but with less cryptographic acceleration.
Availability
R7FA2L1A92DFN#AA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, and motor control gate drivers requiring stable component supply across extended product lifecycles.
Supply support for R7FA2L1A92DFN#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 IoT markets.
The RA2L1 group targets cost-sensitive, ultra-low-power industrial and consumer applications - designed to replace legacy 8/16-bit MCUs with Arm-based performance, security, and capacitive touch integration in compact packages.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2L1A92DFN#AA0?
The R7FA2L1A92DFN#AA0 features an Arm Cortex-M23 core compliant with Armv8-M architecture, operating at a maximum frequency of 48 MHz. It includes an 8-region Memory Protection Unit (MPU), DWT, FPB, and CoreSight™ MTB-M23 trace - all confirmed in the R01DS0385EJ0160 datasheet Rev.1.60. This configuration delivers deterministic real-time response for industrial control tasks while maintaining energy efficiency in the R7FA2L1A92DFN#AA0.
Does the R7FA2L1A92DFN#AA0 support hardware encryption and secure boot?
Yes, the R7FA2L1A92DFN#AA0 integrates AES-128/256 encryption engines and a True Random Number Generator (TRNG) in silicon. These modules enable secure boot validation, encrypted firmware updates, and key derivation - all supported by Renesas' Flexible Software Package (FSP) v4.x. The R7FA2L1A92DFN#AA0 uses these features to meet IEC 61508 and UL 60730 functional safety requirements without external crypto co-processors.
How many capacitive touch channels does the R7FA2L1A92DFN#AA0 support via CTSU2?
The R7FA2L1A92DFN#AA0 supports up to 30 capacitive touch sensing electrodes using its integrated CTSU2 module, as specified in Table 1.13 of the R01DS0385EJ0160 datasheet. This applies specifically to the 80-pin LQFP variant (R7FA2L1A92DFN#AA0), where pins TS17 and TS18 are designated CTSU2 channels - enabling slider, proximity, and multi-button interfaces without external components.
What is the CAN interface capability of the R7FA2L1A92DFN#AA0?
The R7FA2L1A92DFN#AA0 includes a single CAN 2.0B-compliant controller supporting both standard (11-bit) and extended (29-bit) identifiers, with up to 32 configurable mailboxes in normal or FIFO mode. It requires an external ISO 11898-2 transceiver (e.g., TJA1042T) for physical layer connectivity. This capability is documented in Table 1.7 and Figure 1.1 of the R01DS0385EJ0160 datasheet for the R7FA2L1A92DFN#AA0.
What are the power supply requirements and low-power modes supported by the R7FA2L1A92DFN#AA0?
The R7FA2L1A92DFN#AA0 operates from 1.6 V to 5.5 V across its VCC pins, with separate AVCC0/AVSS0 for analog circuits. It supports multiple low-power states including Sleep, Deep Sleep, and Standby - achieving 0.25 µA in Standby with RTC and 8 KB SRAM retention. These modes are controlled via the Power Control Module and validated in Section 1.3 of the R01DS0385EJ0160 datasheet for the R7FA2L1A92DFN#AA0.
R7FA2L1A92DFN#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-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:
- 69
- 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 17x12b SAR; D/A 1x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2L1A92DFN#AA0 FAQ
1.How can I place an order for R7FA2L1A92DFN#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2L1A92DFN#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 R7FA2L1A92DFN#AA0 reliable?
The price and inventory of R7FA2L1A92DFN#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2L1A92DFN#AA0 is usually 5 days.
3.What payment methods are accepted for R7FA2L1A92DFN#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2L1A92DFN#AA0 transactions.
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4.How is shipping managed for R7FA2L1A92DFN#AA0?
R7FA2L1A92DFN#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2L1A92DFN#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 R7FA2L1A92DFN#AA0?
For technical support, including R7FA2L1A92DFN#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2L1A92DFN#AA0 requirements.
6.How does Aetrix verify that R7FA2L1A92DFN#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2L1A92DFN#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 R7FA2L1A92DFN#AA0 meets industry standards.
7.What is the process for return or replacement of R7FA2L1A92DFN#AA0?
All R7FA2L1A92DFN#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2L1A92DFN#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 R7FA2L1A92DFN#AA0 part is unused and in its original packaging.
Return procedure for R7FA2L1A92DFN#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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