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Renesas R7FA2L1A93CFL#AA0
- Part No.:
- R7FA2L1A93CFL#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R7FA2L1A93CFL#AA0.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:852
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Product details
Overview
R7FA2L1A93CFL#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. It operates from 1.6–5.5 V across –40°C to +85°C and targets battery-powered HMI, industrial sensors, and smart metering.
For engineers reviewing the R7FA2L1A93CFL#AA0 datasheet, R7FA2L1A93CFL#AA0 pinout, R7FA2L1A93CFL#AA0 application, or R7FA2L1A93CFL#AA0 equivalent, this page delivers verified specifications, package mapping to 48-pin LQFP, confirmed CTSU2 touch channel count, CAN 2.0B compliance, and real-world design implications for low-power timing, analog sensing, and secure firmware execution.
Technical Context
The R7FA2L1A93CFL#AA0 implements Armv8-M architecture with Memory Protection Unit (8 regions) and CoreSight™ MTB-M23 trace, enabling certified functional safety designs. Its clock system integrates HOCO (48 MHz), SOSC (32.768 kHz), and CAC for real-time frequency accuracy monitoring - critical for RTC and CAN bit timing stability.
Analog subsystem includes ADC12 with 13 selectable input channels (including TSN and internal Vref), DAC12 with single output (DA0), and dual ACMPLP comparators with programmable speed/power trade-off. The CTSU2 supports up to 20 touch channels on this 48-pin variant, using dedicated TSxx pins and TSCAP for charge-pump drive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 48 MHz max - enables deterministic real-time control with TrustZone-based isolation for secure boot and peripheral access control. |
| Memory | 128 KB code flash / 8 KB data flash / 32 KB SRAM - supports firmware updates via data flash wear-leveling and ECC-protected SRAM for ASIL-B–capable applications. |
| Analog Peripherals | 12-bit ADC12 (13 ch), 12-bit DAC12 (1 ch), 2× ACMPLP - provides sensor signal conditioning, closed-loop actuator control, and low-power threshold detection without external components. |
| Connectivity | CAN 2.0B (32 mailboxes), 5× SCI, 2× I2C, 2× SPI - enables robust fieldbus communication in noisy industrial environments and multi-sensor I2C/SPI daisy-chaining. |
| Human Interface | CTSU2 with 20 touch channels - allows direct capacitive button/slider implementation with noise immunity and auto-calibration, reducing BOM vs. external touch controllers. |
| Power & Safety | 1.6–5.5 V operation, LVD with 3 thresholds, IWDT with independent 15 kHz clock, CRC/DOC/ECC - ensures reliable operation during brown-out and fault recovery in unattended embedded systems. |
Pinout & Package
Package: 48-pin LQFP (7 mm × 7 mm, 0.50 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 core and I/O; AVCC0/AVSS0 isolate analog section to minimize noise coupling into ADC/DAC. |
| P000–P015, P100–P115, etc. | General-purpose I/O | 34 total GPIOs with 5-V tolerant inputs, N-ch open-drain outputs, and configurable pull-ups - supports mixed-voltage interfacing and wired-AND logic. |
| XTAL / EXTAL / XCIN / XCOUT | Clock sources | Supports external crystal (1–20 MHz), sub-clock (32.768 kHz), and internal oscillators - enables precise timekeeping and CAN bit-rate synchronization. |
| CTX0 / CRX0 | CAN transceiver interface | Direct connection to external CAN PHY (e.g., TJA1042); requires no level-shifting or signal conditioning for ISO 11898-2 compliance. |
| TS00–TS16-CFC, TSCAP | Capacitive touch sensing | 20 dedicated CTSU2 channels with shared TSCAP pin - enables self-capacitive or mutual-capacitive touch layouts with automatic baseline drift compensation. |
| SWDIO / SWCLK | Debug interface | 2-pin Serial Wire Debug - allows full JTAG-equivalent programming, tracing, and real-time variable inspection without additional debug headers. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Sub-μA deep-sleep current with RAM retention and wake-on-CTSU/AGT - extends battery life in wireless sensor nodes beyond 5 years on coin cell. |
| Integrated security engine | AES-128/256 hardware accelerator + TRNG - enables fast encrypted firmware updates and secure key generation without software overhead or entropy bottlenecks. |
| Flexible timer system | GPT32 × 4 + GPT16 × 3 + AGT × 2 - supports simultaneous motor PWM (BLDC U/V/W phases), encoder counting, and low-power periodic wake-up with <1 μs jitter. |
| Robust analog subsystem | ADC12 with built-in temperature sensor (TSN) and self-diagnosis - eliminates need for external thermal monitoring and validates ADC integrity during startup/safety checks. |
| Event-driven architecture | ELC + DTC + ICU - enables zero-CPU-cycle peripheral chaining (e.g., ADC conversion → CRC → DMA → memory store), reducing active time by >40% in data-logging use cases. |
Applications
| Smart Home Thermostat | Industrial Temperature Sensor Node |
|---|---|
Use Scenario: Wall-mounted HVAC controller with capacitive touch buttons, ambient temperature/humidity sensing, and wireless reporting via CAN-connected gateway. IC Role / Device Role / Timing Role: Main system controller executing UI, sensor acquisition, CAN protocol stack, and low-power scheduling via RTC and AGT timers. Use Value: CTSU2 replaces mechanical switches and reduces ESD risk; integrated DAC drives analog output for legacy HVAC interfaces; 128 KB flash accommodates OTA update partitioning. | Use Scenario: DIN-rail mounted sensor node measuring process temperature in factory automation, transmitting data over CAN bus to PLC with diagnostics. IC Role / Device Role / Timing Role: Real-time sensor fusion hub with ADC sampling, TSN-based calibration, CRC-secured CAN messaging, and IWDT fail-safe reset. Use Value: On-die TSN eliminates external temperature sensor cost; CAN 2.0B mailbox filtering offloads CPU; ECC SRAM prevents silent data corruption in long-term deployments. |
| Energy Meter Front-End Controller | Medical Patient Monitor Button Panel |
Use Scenario: Residential smart meter with tamper detection, voltage/current measurement, and secure firmware updates via CAN or UART. IC Role / Device Role / Timing Role: Secure metering co-processor handling analog front-end interface, AES-encrypted data signing, and anti-tamper event logging to data flash. Use Value: Hardware AES accelerates signature generation; data flash endurance (100k P/E cycles) supports 10+ years of daily log writes; LVD monitors supply sag during magnetic tampering. | Use Scenario: Touch-sensitive control panel for bedside vital sign monitors requiring medical-grade reliability and low EMI emissions. IC Role / Device Role / Timing Role: Dedicated HMI controller managing capacitive touch response, LED feedback via PWM, and isolated UART communication to main MCU. Use Value: CTSU2's noise rejection meets IEC 60601-1 EMI limits; 5-V tolerant GPIOs interface directly with legacy indicator LEDs; low-power modes reduce heat near patient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2L1AB2DFL#AA0 | 256 KB flash, same 48-pin LQFP package, identical peripherals and clock specs - differs only in code memory size and temperature grade (–40°C to +85°C same). | Preferred where future firmware expansion or dual-bank OTA updates are required; no PCB change needed. | Select when long-term feature scalability or bootloader redundancy is prioritized over minimal BOM cost. |
| STM32L412KBU6 | ARM Cortex-M4, 128 KB flash, 32 KB SRAM, but lacks CAN, CTSU2, and hardware AES-256; uses different pinout and 32-pin QFN package. | Suitable for simpler sensor nodes without fieldbus or advanced HMI; requires layout redesign and driver porting. | Choose only if CAN and capacitive touch are not required and existing STM32 ecosystem tooling is leveraged. |
Compared with R7FA2L1AB2DFL#AA0, the R7FA2L1A93CFL#AA0 trades flash capacity for lower unit cost while retaining identical safety, security, and analog capabilities; versus STM32L412KBU6, it delivers native CAN and CTSU2 with no external components but requires Renesas-specific toolchain adoption.
Availability
R7FA2L1A93CFL#AA0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, and medical HMI applications requiring stable component supply, long lifecycle support, and guaranteed industrial temperature performance.
Supply support for R7FA2L1A93CFL#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 is designed for ultra-low-power, cost-sensitive embedded applications demanding integrated security, capacitive touch, and industrial connectivity - targeting battery-operated and energy-harvesting edge devices.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2L1A93CFL#AA0?
The R7FA2L1A93CFL#AA0 features an Arm Cortex-M23 core operating at up to 48 MHz, compliant with the Armv8-M architecture. It includes an 8-region Memory Protection Unit (MPU), DWT, FPB, and CoreSight™ MTB-M23 trace - enabling deterministic real-time execution and secure firmware partitioning essential for industrial and medical applications.
How many capacitive touch channels does the R7FA2L1A93CFL#AA0 support, and which pins are dedicated to CTSU2?
The R7FA2L1A93CFL#AA0 supports 20 capacitive touch sensing channels via its CTSU2 peripheral. Dedicated pins include TS00, TS02–TS07, TS08–TS16-CFC, TS17, TS18, and TS21–TS35-CFC, plus the TSCAP secondary power pin - all mapped to specific GPIOs in the 48-pin LQFP package per Figure 1.6 of the datasheet.
Does the R7FA2L1A93CFL#AA0 include CAN interface support, and what standards does it comply with?
Yes, the R7FA2L1A93CFL#AA0 integrates a CAN module compliant with ISO 11898-1 (CAN 2.0A/B), supporting both standard (11-bit) and extended (29-bit) message formats. It provides 32 configurable mailboxes and requires an external CAN transceiver (e.g., TJA1042) - making it suitable for industrial fieldbus and automotive diagnostic networks.
What analog peripherals are integrated into the R7FA2L1A93CFL#AA0, and how many input channels does the ADC support?
The R7FA2L1A93CFL#AA0 integrates a 12-bit ADC12 with 13 selectable analog input channels (including on-die temperature sensor and internal reference), a 12-bit DAC12 with single DA0 output, and two low-power analog comparators (ACMPLP0/1). These enable sensor signal acquisition, actuator control, and threshold monitoring without external signal conditioning.
What power supply ranges and temperature grades are specified for the R7FA2L1A93CFL#AA0?
The R7FA2L1A93CFL#AA0 operates from 1.6 V to 5.5 V and is rated for industrial temperature range of –40°C to +85°C. Its power architecture includes a switching regulator (VCC_DCDC/VLO/VSS_DCDC), separate analog supplies (AVCC0/AVSS0), and three independent LVD detectors - ensuring robust operation across wide input voltages and environmental conditions.
R7FA2L1A93CFL#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:
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2L1A93CFL#AA0 FAQ
1.How can I place an order for R7FA2L1A93CFL#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2L1A93CFL#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 R7FA2L1A93CFL#AA0 reliable?
The price and inventory of R7FA2L1A93CFL#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2L1A93CFL#AA0 is usually 5 days.
3.What payment methods are accepted for R7FA2L1A93CFL#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2L1A93CFL#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2L1A93CFL#AA0?
R7FA2L1A93CFL#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2L1A93CFL#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 R7FA2L1A93CFL#AA0?
For technical support, including R7FA2L1A93CFL#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2L1A93CFL#AA0 requirements.
6.How does Aetrix verify that R7FA2L1A93CFL#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2L1A93CFL#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 R7FA2L1A93CFL#AA0 meets industry standards.
7.What is the process for return or replacement of R7FA2L1A93CFL#AA0?
All R7FA2L1A93CFL#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2L1A93CFL#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 R7FA2L1A93CFL#AA0 part is unused and in its original packaging.
Return procedure for R7FA2L1A93CFL#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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