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Renesas R7FA2L1A92DNE#AA0
- Part No.:
- R7FA2L1A92DNE#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R7FA2L1A92DNE#AA0.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 48HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,265
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Product details
Overview
R7FA2L1A92DNE#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 and TRNG. It operates from 1.6–5.5 V across –40°C to +85°C and targets battery-powered HMI, industrial sensors, and smart home controllers.
For engineers reviewing the R7FA2L1A92DNE#AA0 datasheet, R7FA2L1A92DNE#AA0 pinout, R7FA2L1A92DNE#AA0 application, or R7FA2L1A92DNE#AA0 equivalent, this page delivers verified specifications, package mapping to 48-pin HWQFN, functional pin roles, real-world use cases, and two validated alternative parts for design flexibility and supply continuity.
Technical Context
The R7FA2L1A92DNE#AA0 implements Armv8-M architecture with Memory Protection Unit (8 regions), debug via SW-DP, and dual watchdogs (WDT/IWDT) for functional safety. Its clock system includes HOCO (48 MHz), SOSC (32.768 kHz), and CAC for frequency accuracy monitoring.
Analog subsystem integrates ADC12 (13 channels), DAC12 (1 channel), ACMPLP (2 low-power comparators), and TSN for on-die temperature sensing. Human-machine interface is enabled by CTSU2 supporting up to 30 touch channels in 48-pin variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M23 @ 48 MHz - energy-efficient secure execution with MPU and TrustZone-ready architecture |
| Memory | 128 KB code flash / 8 KB data flash / 32 KB SRAM with ECC - supports firmware updates and data logging with error resilience |
| Analog I/O | 12-bit ADC (13 ch) / 12-bit DAC (1 ch) / 2× ACMPLP - enables precision sensor signal conditioning and analog output control |
| Connectivity | CAN 2.0B / 5× SCI / 2× I2C / 2× SPI - robust communication for industrial networks and peripheral expansion |
| Touch Interface | CTSU2 with 30-channel support - capacitive touch sensing without external components for buttons/sliders |
| Power & Temp | 1.6–5.5 V operation / –40°C to +85°C / HWQFN-48 - suitable for wide-input battery systems and consumer-grade environments |
| Security | AES-128/256 + TRNG - hardware-accelerated encryption and cryptographically secure random number generation |
Pinout & Package
Package: 48-pin HWQFN (7 mm × 7 mm, 0.50 mm pitch), exposed die 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 total; 4× 5-V tolerant; N-ch open-drain outputs (23 pins); pull-up resistors (34 pins) - flexible interface for sensors, LEDs, and logic |
| XCIN / XCOUT | Sub-clock oscillator | 32.768 kHz crystal connection for RTC and low-power timing - essential for calendar mode and wake-from-sleep |
| SWDIO / SWCLK | Debug interface | 2-pin Serial Wire Debug - enables programming, real-time trace, and non-intrusive debugging without halting CPU |
| CTX0 / CRX0 | CAN transceiver interface | Direct connection to external CAN PHY (e.g., TJA1042) - requires external transceiver for physical layer compliance |
| TS00–TS35-CFC | Capacitive touch inputs | CTSU2 touch channel pins - support mutual/self-capacitance measurement; TSCAP provides secondary bias for enhanced SNR |
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 always-on touch interfaces |
| Integrated switching regulator | VCC_DCDC, VLO, VSS_DCDC pins enable internal DC-DC conversion - reduces external component count and improves efficiency at 3.3 V output |
| Hardware safety mechanisms | ECC on SRAM, CAC, CRC calculator, DOC, IWDT with dedicated oscillator - meets IEC 61508 SIL2 requirements for industrial control |
| Event-driven architecture | ELC + DTC + GPT + AGT - enables autonomous peripheral-to-peripheral data transfer and timer-triggered actions without CPU intervention |
| Secure boot & key management | ROM-based secure bootloader with flash lock bits and register write protection (PRCR) - prevents unauthorized firmware modification and runtime register corruption |
Applications
| Smart Appliance Control Panel | Industrial Sensor Node |
|---|---|
Use Scenario: Touch-enabled front panel for washing machine or HVAC controller with LED feedback and motor control. IC Role / Device Role / Timing Role: Main application MCU handling capacitive touch decoding (CTSU2), BLDC motor PWM (GPT32/GTOUUP), and CAN bus communication to main controller. Use Value: Single-chip integration eliminates external touch controller and reduces BOM cost; 48 MHz core ensures responsive UI with real-time motor control. | Use Scenario: Battery-powered vibration/temperature node in predictive maintenance system, transmitting data over CAN to gateway. IC Role / Device Role / Timing Role: Data acquisition MCU sampling TSN and ADC12, performing local diagnostics, and managing CAN message scheduling via mailboxes. Use Value: Low-power modes extend 10-year battery life; built-in CAC validates clock integrity before critical measurements. |
| Smart Home Gateway Bridge | Medical Patient Monitor Interface |
Use Scenario: BLE-to-CAN bridge in smart lighting or door lock hub, translating smartphone commands into fieldbus actuation. IC Role / Device Role / Timing Role: Protocol translation MCU using SCI (UART) for BLE module and CAN for actuator network; AES-128 secures command payloads. Use Value: Hardware crypto accelerates secure OTA updates; 34 GPIOs support status LEDs, button inputs, and debug headers. | Use Scenario: Front-end interface for portable ECG or SpO₂ device requiring clinical-grade touch response and analog signal fidelity. IC Role / Device Role / Timing Role: Analog front-end controller acquiring sensor signals via ADC12, applying digital filtering (DTC+DOC), and driving OLED via SPI. Use Value: 12-bit DAC generates precise reference voltages; ACMPLP detects lead-off conditions; CTSU2 enables glove-compatible touch. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2L1AB2DNE#AA0 | 256 KB flash (vs. 128 KB), same package and peripherals | Supports larger firmware images, complex RTOS stacks, or dual-bank OTA | Select when future firmware growth or secure boot partitioning is required |
| STM32L552REY6TR | Arm Cortex-M33, TrustZone, 512 KB flash, 256 KB SRAM, no CTSU or CAN | Lacks integrated touch sensing and CAN; adds cryptographic accelerators (AES-GCM, PKA) | Choose for high-security IoT endpoints where CAN and touch are handled externally |
Compared with R7FA2L1A92DNE#AA0, R7FA2L1AB2DNE#AA0 offers double flash capacity without changing footprint or software porting effort, while STM32L552REY6TR trades integrated analog/CAN for advanced security IP but requires external touch and CAN PHY solutions.
Availability
R7FA2L1A92DNE#AA0 is available at Aetrix Electronics and suitable for smart appliance control panels, industrial sensor nodes, and medical patient monitor interfaces requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for R7FA2L1A92DNE#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 embedded applications demanding integrated touch, analog, security, and CAN connectivity - targeting battery-operated and space-constrained HMI systems.
FAQ
What is the maximum operating frequency of the R7FA2L1A92DNE#AA0?
The R7FA2L1A92DNE#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 industrial temperature range (–40°C to +85°C). The R7FA2L1A92DNE#AA0 includes clock accuracy monitoring (CAC) to validate timing integrity under varying voltage and temperature conditions.
Does the R7FA2L1A92DNE#AA0 include hardware security features?
Yes, the R7FA2L1A92DNE#AA0 integrates AES-128/256 encryption engines, a True Random Number Generator (TRNG), flash area protection, register write protection (PRCR), and secure boot support. These features are implemented in silicon and documented in the R01DS0385EJ0160 datasheet. The R7FA2L1A92DNE#AA0 meets foundational requirements for secure firmware update and data confidentiality in edge devices.
How many capacitive touch channels does the R7FA2L1A92DNE#AA0 support?
The R7FA2L1A92DNE#AA0 supports up to 30 capacitive touch channels via its CTSU2 peripheral in the 48-pin HWQFN package. This is confirmed in Table 1.13 (Function Comparison) of the datasheet, which specifies "CTSU: 30" for R7FA2L1A9xxNE variants. Channel allocation includes TS00–TS35-CFC pins, with TSCAP providing auxiliary bias for noise immunity.
Is CAN functionality available on the R7FA2L1A92DNE#AA0?
Yes, the R7FA2L1A92DNE#AA0 includes a full CAN 2.0B-compliant controller 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 CTX0 and CRX0 pins. CAN operation is validated across the –40°C to +85°C temperature range and is listed in Table 1.13 of the R01DS0385EJ0160 datasheet.
What is the pin count and package type of the R7FA2L1A92DNE#AA0?
The R7FA2L1A92DNE#AA0 uses a 48-pin HWQFN package (7 mm × 7 mm, 0.50 mm pitch) with an exposed die pad. This is explicitly defined in Figure 1.2 (Part Numbering Scheme) and Table 1.12 (Product List) of the datasheet, where "NE" denotes HWQFN-48. Pin assignments are detailed in Figure 1.7 and Table 1.15, confirming 34 GPIOs and dedicated analog, debug, and power terminals.
R7FA2L1A92DNE#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-WFQFN Exposed Pad
- 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:
- 37
- 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:
R7FA2L1A92DNE#AA0 FAQ
1.How can I place an order for R7FA2L1A92DNE#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2L1A92DNE#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 R7FA2L1A92DNE#AA0 reliable?
The price and inventory of R7FA2L1A92DNE#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2L1A92DNE#AA0 is usually 5 days.
3.What payment methods are accepted for R7FA2L1A92DNE#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2L1A92DNE#AA0 transactions.
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4.How is shipping managed for R7FA2L1A92DNE#AA0?
R7FA2L1A92DNE#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2L1A92DNE#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 R7FA2L1A92DNE#AA0?
For technical support, including R7FA2L1A92DNE#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2L1A92DNE#AA0 requirements.
6.How does Aetrix verify that R7FA2L1A92DNE#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2L1A92DNE#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 R7FA2L1A92DNE#AA0 meets industry standards.
7.What is the process for return or replacement of R7FA2L1A92DNE#AA0?
All R7FA2L1A92DNE#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2L1A92DNE#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 R7FA2L1A92DNE#AA0 part is unused and in its original packaging.
Return procedure for R7FA2L1A92DNE#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA2L1A92DNE#AA0 Tags
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