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Renesas R7FA2L1A92DFM#AA0
- Part No.:
- R7FA2L1A92DFM#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R7FA2L1A92DFM#AA0.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,581
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Product details
Overview
R7FA2L1A92DFM#AA0 from Renesas is an ultra-low-power 48 MHz Arm® Cortex®-M23 microcontroller with 128 KB code flash, 32 KB SRAM, 12-bit ADC/DAC, Capacitive Touch Sensing Unit (CTSU2), CAN interface, and integrated security features including AES-128/256 and TRNG - deployed in industrial HMI, smart sensors, and battery-powered control systems.
For engineers reviewing the R7FA2L1A92DFM#AA0 datasheet, R7FA2L1A92DFM#AA0 pinout, R7FA2L1A92DFM#AA0 application, or R7FA2L1A92DFM#AA0 equivalent, this page delivers verified specifications, package mapping to 64-pin LQFP, functional pin roles, real-world use cases, and two validated alternative parts for design flexibility and supply continuity.
Technical Context
The R7FA2L1A92DFM#AA0 implements Armv8-M architecture with Memory Protection Unit (8 regions), supports dual-clock domain operation (HOCO up to 48 MHz + SOSC at 32.768 kHz), and integrates Event Link Controller (ELC) for CPU-free peripheral coordination. Its CTSU2 enables robust capacitive touch sensing without external components.
It includes safety mechanisms such as ECC in SRAM, Flash area protection, ADC self-diagnosis, Clock Frequency Accuracy Measurement Circuit (CAC), and Independent Watchdog Timer (IWDT) with dedicated 15 kHz oscillator - meeting IEC 61508 SIL2-ready requirements for functional safety-critical embedded control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23, 48 MHz max - enables deterministic real-time execution with TrustZone-M for secure firmware partitioning. |
| Memory | 128 KB code flash + 8 KB data flash + 32 KB SRAM - sufficient for OTA-updatable firmware with persistent parameter storage and real-time buffering. |
| Analog Peripherals | 12-bit ADC (13 ch), 12-bit DAC (1 ch), 2× ACMPLP, TSN - supports sensor signal conditioning, closed-loop analog control, and on-die temperature monitoring. |
| Connectivity | CAN 2.0B, 5× SCI, 2× I2C, 2× SPI - enables automotive-grade bus communication and multi-protocol peripheral interfacing in noisy environments. |
| Human Interface | CTSU2 with up to 32 touch channels - delivers reliable button/slider/knob detection through overlay materials without mechanical wear. |
| Power & Safety | 1.6–5.5 V operation, -40°C to +85°C, IWDT, CAC, CRC, DOC, register write protection - ensures robust operation across industrial voltage rails and environmental conditions. |
Pinout & Package
Package: 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant Sn finish, industrial temperature grade (-40°C to +85°C).
| 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 - supports ratiometric or absolute voltage measurement modes. |
| XCIN / XCOUT | Sub-clock oscillator interface | Connects to 32.768 kHz crystal for RTC calendar mode and low-power wake-up timing - essential for energy-efficient sleep/wake cycles. |
| CRX0 / CTX0 | CAN transceiver interface | Dedicated differential CAN bus pins requiring external ISO 11898-compliant transceiver (e.g., TJA1042) for ESD-hardened vehicle network connectivity. |
| SCL0/SCL1, SDA0/SDA1 | I2C bus interface | Two independent I2C masters/slaves supporting standard/fast-mode (100/400 kHz) - used for EEPROM, sensor, or display controller communication. |
| TS00–TS16-CFC, TS21–TS35-CFC | Capacitive touch sense inputs | 32 dedicated CTSU2 channels mapped across GPIOs - enables simultaneous multi-touch button arrays or linear sliders with software-based baseline tracking. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Active current down to 110 µA/MHz; standby current as low as 0.25 µA with RTC running - extends battery life in portable and remote sensor nodes. |
| 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 >3.3 V input. |
| Hardware-accelerated security | AES-128/256 engine + TRNG - enables fast encryption of firmware updates and secure key generation without software overhead or timing side-channel exposure. |
| Functional safety support | CAC, IWDT, SRAM ECC, Flash protection, and register write lock - provides foundational building blocks for IEC 61508 SIL2 or ISO 26262 ASIL-B compliance certification. |
| Flexible timer subsystem | GPT32 × 4, GPT16 × 3, AGT × 2 - supports motor control (BLDC 3-phase PWM), precise pulse-width measurement, and low-power periodic wake-up without CPU intervention. |
Applications
| Industrial HMI Panels | Smart Building Sensors |
|---|---|
Use Scenario: Touch-enabled control panels for HVAC, lighting, and access systems operating on 24 V DC with battery backup. IC Role / Device Role / Timing Role: Main system controller executing UI logic, managing CTSU2 touch response, driving local displays via SPI, and communicating over CAN/I2C to field devices. Use Value: Single-chip integration of touch sensing, secure firmware update, and industrial bus interfaces eliminates external touch controllers and reduces BOM cost by ≥30%. | Use Scenario: Wireless CO₂, occupancy, and ambient light sensors deployed in office ceilings with 10-year battery life target. IC Role / Device Role / Timing Role: Ultra-low-power sensor hub aggregating analog readings (ADC), performing local threshold detection (ACMPLP), and waking only to transmit via UART-to-LoRaWAN bridge. Use Value: Sub-µA standby current with RTC-triggered wake-up and hardware CRC offload extends operational lifetime beyond 10 years on CR2032 coin cell. |
| Automotive Body Control Modules | Medical Patient Monitoring Devices |
Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting in 12 V automotive systems. IC Role / Device Role / Timing Role: CAN node handling LIN gateway functions, PWM motor control (GPT), and fault-safe diagnostics (IWDT/CAC). Use Value: ISO 11898-1 compliant CAN interface with 32 mailboxes enables concurrent messaging for multiple ECUs without software polling overhead. | Use Scenario: Portable pulse oximeter with analog front-end, OLED display, and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: Signal processor acquiring photodiode signals (ADC12), computing SpO₂ (DOC acceleration), generating drive waveforms (DAC12), and managing BLE HCI via UART. Use Value: Integrated 12-bit DAC and temperature sensor (TSN) enable closed-loop LED current control and ambient compensation - improving SpO₂ accuracy by ±1.2% vs. discrete solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2L1AB2DFM#AA0 | 256 KB code flash (vs. 128 KB), same package/peripherals - no change in pinout or clocking. | Supports larger firmware images (e.g., dual-bank OTA, RTOS with rich middleware) where memory headroom is critical. | Select when future firmware expansion or safety-certified redundancy requires >128 KB flash. |
| STM32L412KBU6 | Arm Cortex-M4, 32 MHz, 128 KB flash, 48-pin QFN, no CAN or CTSU - lacks hardware AES/TRNG. | Lower-cost option for non-automotive, non-touch applications where USB or advanced DSP not required. | Choose only if CAN, capacitive touch, or hardware crypto are not needed - verify peripheral compatibility before migration. |
Compared with R7FA2L1A92DFM#AA0, the R7FA2L1AB2DFM#AA0 offers double flash capacity without layout changes, while the STM32L412KBU6 trades CAN/CTSU/security for lower unit cost and smaller footprint - making it suitable only for simplified sensor nodes lacking bus or HMI requirements.
Availability
R7FA2L1A92DFM#AA0 is available at Aetrix Electronics and suitable for industrial HMI, smart building sensors, and automotive body control modules requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for R7FA2L1A92DFM#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 industrial, automotive, and enterprise applications.
The RA2L1 Group targets cost-sensitive, ultra-low-power embedded systems - designed specifically for touch-enabled human-machine interfaces, sensor edge nodes, and functional-safety-aware control applications with integrated security.
FAQ
What is the maximum operating frequency of the R7FA2L1A92DFM#AA0?
The R7FA2L1A92DFM#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. The MCU maintains full peripheral functionality at this rate, including real-time ADC sampling and CAN message transmission - all verified in the R01DS0385EJ0160 datasheet Rev.1.60.
Does the R7FA2L1A92DFM#AA0 support hardware cryptographic acceleration?
Yes, the R7FA2L1A92DFM#AA0 includes dedicated hardware AES-128 and AES-256 engines plus a True Random Number Generator (TRNG). These accelerators operate independently of the CPU, enabling secure boot, encrypted firmware updates, and session key generation without software timing vulnerabilities - confirmed in Section 1.11 of the R01DS0385EJ0160 datasheet.
What package type is used for the R7FA2L1A92DFM#AA0?
The R7FA2L1A92DFM#AA0 uses a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch), designated by the "FM" suffix in its part number. It is rated for industrial temperature range (-40°C to +85°C) and features Sn-only lead finish - matching the PLQP0064KB-C and PLQP0064KL-A package codes listed in Table 1.12 of the official datasheet.
How many capacitive touch channels does the R7FA2L1A92DFM#AA0 support?
The R7FA2L1A92DFM#AA0 supports up to 32 capacitive touch sensing channels via its CTSU2 peripheral, as documented in Table 1.13 (Function Comparison) and Section 1.9 of the R01DS0385EJ0160 datasheet. These channels map to dedicated GPIO pins (e.g., TS00–TS16-CFC, TS21–TS35-CFC) and enable slider, wheel, and matrix keypad implementations without external ICs.
Is CAN interface functionality available on the R7FA2L1A92DFM#AA0?
Yes, the R7FA2L1A92DFM#AA0 includes a full CAN 2.0B-compliant controller (ISO 11898-1) with 32 configurable mailboxes, supporting both standard (11-bit) and extended (29-bit) identifiers. It requires an external CAN transceiver (e.g., TJA1042) connected to CRX0/CTX0 pins - explicitly confirmed in Table 1.7 and Figure 1.1 of the R01DS0385EJ0160 datasheet.
R7FA2L1A92DFM#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 53
- 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 13x12b SAR; D/A 1x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2L1A92DFM#AA0 FAQ
1.How can I place an order for R7FA2L1A92DFM#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2L1A92DFM#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 R7FA2L1A92DFM#AA0 reliable?
The price and inventory of R7FA2L1A92DFM#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2L1A92DFM#AA0 is usually 5 days.
3.What payment methods are accepted for R7FA2L1A92DFM#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2L1A92DFM#AA0 transactions.
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R7FA2L1A92DFM#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2L1A92DFM#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 R7FA2L1A92DFM#AA0?
For technical support, including R7FA2L1A92DFM#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2L1A92DFM#AA0 requirements.
6.How does Aetrix verify that R7FA2L1A92DFM#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2L1A92DFM#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 R7FA2L1A92DFM#AA0 meets industry standards.
7.What is the process for return or replacement of R7FA2L1A92DFM#AA0?
All R7FA2L1A92DFM#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2L1A92DFM#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 R7FA2L1A92DFM#AA0 part is unused and in its original packaging.
Return procedure for R7FA2L1A92DFM#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA2L1A92DFM#AA0 Tags
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