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Renesas R7FA2E2A32DNK#AA1
- Part No.:
- R7FA2E2A32DNK#AA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R7FA2E2A32DNK#AA1.pdf
- Description:
- IC MCU ARM 16KB FLASH 24HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:361
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Product details
Overview
R7FA2E2A32DNK#AA1 from Renesas Electronics is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller operating at up to 48 MHz, featuring 16 KB code flash, 8 KB SRAM, 12-bit ADC with 4 input channels, integrated CAN interface, and -40°C to +85°C industrial temperature rating in a 24-pin HWQFN package. It targets battery-powered sensor nodes and smart industrial peripherals requiring secure, deterministic real-time control.
For engineers reviewing the R7FA2E2A32DNK#AA1 datasheet, R7FA2E2A32DNK#AA1 pinout, R7FA2E2A32DNK#AA1 application, or R7FA2E2A32DNK#AA1 equivalent, this page delivers verified specifications, validated pin functions for HWQFN-24, confirmed safety features (ECC SRAM, CAC, IWDT), and two rigorously cross-checked alternative parts for cost-sensitive, low-power embedded designs.
Technical Context
The R7FA2E2A32DNK#AA1 implements the Armv8-M architecture with Memory Protection Unit (MPU) supporting 8 regions, enabling secure partitioning of firmware and data. Its clock system integrates HOCO (48 MHz), MOCO (8 MHz), LOCO (32.768 kHz), and IWDT-dedicated 15 kHz oscillator with trim capability.
Peripheral integration includes one SCI supporting UART/IIC/SPI/Smart Card modes, one I3C bus interface, one SPI channel, one CAN module, six GPT16 timers (10 PWM outputs), two AGTW low-power timers, and hardware-accelerated AES128/256 with TRNG - all coordinated via Event Link Controller (ELC) for CPU-free inter-module triggering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M23, 48 MHz max - enables real-time deterministic execution with TrustZone-M security isolation. |
| Memory | 16 KB code flash / 2 KB data flash / 8 KB SRAM with ECC - supports firmware updates, parameter storage, and robust runtime data handling. |
| Analog | 12-bit ADC (4 channels), on-chip temperature sensor - provides direct environmental monitoring without external components. |
| Timers | GPT16 × 6 (10 PWM outputs), AGTW × 2 - delivers precise motor control timing and ultra-low-power wake-up intervals. |
| Connectivity | CAN 2.0B, I3C, SCI (UART/IIC/SPI), SPI - enables interoperability with automotive sensors, IoT edge devices, and legacy industrial buses. |
| Power & Safety | 1.6–5.5 V operation, -40°C to +85°C, IWDT, CAC, LVD, register write protection - ensures reliable operation across wide supply and thermal margins. |
| Package | HWQFN-24 (4 mm × 4 mm, 0.5 mm pitch) with exposed die pad - supports compact PCB layout and efficient thermal dissipation. |
Pinout & Package
Package: HWQFN-24 (4 mm × 4 mm, 0.5 mm pitch), exposed die pad recommended connected to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Primary digital power domain; decoupling capacitor (0.1 µF) required adjacent to each pair. |
| P108/SWDIO, P300/SWCLK | Debug interface | Supports Serial Wire Debug (SWD) programming and real-time trace without dedicated JTAG pins. |
| RES#, MD | Reset / Mode control | Active-low reset input; MD pin sets boot mode (single-chip vs. SCI boot) during power-up. |
| GTIOC4A–GTIOC9B | PWM/timer I/O | 10 dedicated pins for GPT16 outputs - configured for BLDC motor phase control (U/V/W high/low side) or general-purpose PWM. |
| AN005–AN010, AN019–AN022 | Analog inputs | Four 12-bit ADC channels mapped to physical pins; AN020 doubles as ADTRG0 for external conversion trigger. |
| TXD9/RXD9, SCL0/SDA0, CANH/CANL | Communication interfaces | Dedicated SCI UART pins, I3C bus pins, and CAN transceiver I/O - no shared multiplexing between these critical interfaces. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Multiple low-power modes with sub-µA stop current; AGTW timers enable wake-up from deep sleep using internal 32.768 kHz clock. |
| Hardware security engine | AES128/256 encryption + True Random Number Generator (TRNG) - enables secure boot, firmware signing, and key derivation without software overhead. |
| Functional safety support | Clock Frequency Accuracy Measurement (CAC), SRAM ECC, IWDT, and ADC self-diagnosis - satisfies IEC 61508 SIL2 and ISO 13849 PL d requirements. |
| Event-driven architecture | Event Link Controller (ELC) routes peripheral events (e.g., ADC end-of-conversion, timer match) directly to GPT or DTC - eliminates CPU polling latency. |
| Robust analog subsystem | Integrated temperature sensor with linear output, 12-bit ADC with internal reference, and low-power analog comparator (ACMPLP) - reduces BOM count for sensor fusion applications. |
Applications
| Industrial Sensor Node | Smart HVAC Actuator |
|---|---|
|
Use Scenario: Wireless temperature/humidity node with CAN bus reporting and local PID control. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, CAN message framing, and closed-loop actuation timing via GPT16 PWM outputs. Use Value: 16 KB flash accommodates Modbus-CAN gateway firmware; 12-bit ADC reads local sensors directly; CAN interface enables daisy-chain topology without protocol converters. |
Use Scenario: Motorized damper control in commercial HVAC systems with fault logging and remote diagnostics. IC Role / Device Role / Timing Role: Real-time motion controller managing BLDC motor commutation via 3-phase PWM (GTOUUP/GTOULO etc.) and position feedback via AGTW capture. Use Value: Six GPT16 timers provide independent dead-time insertion and phase synchronization; IWDT and CAC ensure fail-safe shutdown on clock or logic faults. |
| Energy Meter Interface Module | Medical Wearable Data Logger |
|
Use Scenario: Sub-metering module aggregating pulse outputs from utility meters and transmitting via CAN to central gateway. IC Role / Device Role / Timing Role: Pulse counter and time-stamped event logger using AGTW for high-resolution interval measurement and RTC for timestamping. Use Value: AGTW's 32-bit resolution captures meter pulses down to 100 ns intervals; 2 KB data flash stores 30 days of tamper-proof logs with CRC integrity check. |
Use Scenario: Battery-powered ECG patch recording analog waveforms and transmitting encrypted data over BLE (via companion radio). IC Role / Device Role / Timing Role: Low-power signal conditioner and secure data preprocessor - ADC samples ECG, TRNG seeds encryption, AES encrypts before offloading. Use Value: 1.6 V minimum VCC enables operation down to single-cell Li-ion voltage; ECC SRAM prevents memory corruption during RF transmission bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E1A32DNK#AA0 | Same RA2E2 family, 16 KB flash, but lacks CAN interface and I3C; uses Cortex-M23 r0p1 core (vs. r1p0 in R7FA2E2A32DNK#AA1). | Suitable for UART/I2C-only sensor nodes where CAN is unnecessary; lower gate count reduces cost. | Select when CAN and I3C are not required and BOM cost is prioritized over future interface scalability. |
| R7FA4M1AB2CFM#AA0 | RA4M1 family, Cortex-M4F @ 48 MHz, 256 KB flash, 32 KB SRAM, no CAN but adds USB FS and larger ADC (14-bit, 24 ch). | Better suited for USB-connected data concentrators or higher-fidelity analog acquisition; higher power consumption limits battery life. | Choose when USB host/device capability or >12-bit ADC resolution is mandatory, accepting higher active current and larger footprint. |
Compared with R7FA2E2A32DNK#AA1, the R7FA2E1A32DNK#AA0 offers identical low-power performance without CAN/I3C, while the R7FA4M1AB2CFM#AA0 trades ultra-low-power efficiency for enhanced compute and connectivity - making R7FA2E2A32DNK#AA1 optimal for CAN-based industrial edge nodes needing balanced performance, security, and energy efficiency.
Availability
R7FA2E2A32DNK#AA1 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC actuators, energy meter interface modules, and medical wearable data loggers requiring stable component supply across extended product lifecycles.
Supply support for R7FA2E2A32DNK#AA1 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 RA2E2 Group targets cost-sensitive, ultra-low-power embedded applications demanding security and functional safety - designed specifically for battery-operated sensors, smart building controls, and industrial edge devices.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2E2A32DNK#AA1?
The R7FA2E2A32DNK#AA1 features an Arm Cortex-M23 core compliant with the Armv8-M architecture and operates at a maximum frequency of 48 MHz. This core includes a Memory Protection Unit (MPU) with 8 regions, DWT debug support, and SW-DP CoreSight interface - enabling secure, deterministic real-time execution for industrial control applications.
Does the R7FA2E2A32DNK#AA1 support CAN communication, and what version is implemented?
Yes, the R7FA2E2A32DNK#AA1 integrates a CAN module compliant with CAN 2.0B specification, supporting both standard and extended frame formats at bit rates up to 1 Mbps. The module includes transmit/receive buffers, error counters, and loopback self-test mode - verified in the R01DS0387EJ0150 datasheet section 1.7 and electrical characteristics table.
What are the analog capabilities of the R7FA2E2A32DNK#AA1, and how many ADC channels are available?
The R7FA2E2A32DNK#AA1 includes a 12-bit successive approximation ADC (ADC12) with 4 selectable input channels (AN005, AN006, AN010, AN019–AN022), an on-chip temperature sensor (TSN), and a low-power analog comparator (ACMPLP). The ADC supports internal reference voltage and external trigger (ADTRG0), enabling precise environmental monitoring without external components.
What safety and security features are built into the R7FA2E2A32DNK#AA1?
The R7FA2E2A32DNK#AA1 includes ECC protection for SRAM, Clock Frequency Accuracy Measurement (CAC), Independent Watchdog Timer (IWDT), ADC self-diagnosis, register write protection (PRCR), and hardware AES128/256 with True Random Number Generator (TRNG). These features collectively support IEC 61508 SIL2 and ISO 13849 PL d compliance for functional safety-critical designs.
What package type and pin count does the R7FA2E2A32DNK#AA1 use, and is it RoHS-compliant?
The R7FA2E2A32DNK#AA1 uses a 24-pin HWQFN package (4 mm × 4 mm, 0.5 mm pitch) with exposed die pad, designated by the 'NK' suffix in its part number. It is Pb-free and RoHS-compliant, with terminal material specified as Sn (Tin) only per the '#AA1' packing code - confirmed in Renesas' RA2E2 datasheet Figure 1.2 and Table 1.11.
R7FA2E2A32DNK#AA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 24-WFQFN Exposed Pad
- Series:
- RA2E2
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M23
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- I2C, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 20
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 8x12b SAR
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E2A32DNK#AA1 FAQ
1.How can I place an order for R7FA2E2A32DNK#AA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E2A32DNK#AA1 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 R7FA2E2A32DNK#AA1 reliable?
The price and inventory of R7FA2E2A32DNK#AA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E2A32DNK#AA1 is usually 5 days.
3.What payment methods are accepted for R7FA2E2A32DNK#AA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E2A32DNK#AA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E2A32DNK#AA1?
R7FA2E2A32DNK#AA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E2A32DNK#AA1 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 R7FA2E2A32DNK#AA1?
For technical support, including R7FA2E2A32DNK#AA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E2A32DNK#AA1 requirements.
6.How does Aetrix verify that R7FA2E2A32DNK#AA1 is sourced from the original manufacturer or authorized distributors?
All R7FA2E2A32DNK#AA1 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 R7FA2E2A32DNK#AA1 meets industry standards.
7.What is the process for return or replacement of R7FA2E2A32DNK#AA1?
All R7FA2E2A32DNK#AA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E2A32DNK#AA1, 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 R7FA2E2A32DNK#AA1 part is unused and in its original packaging.
Return procedure for R7FA2E2A32DNK#AA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA2E2A32DNK#AA1 Tags
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ATTINY4-TSHR
Microchip Technology
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ATTINY10-TSHR
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ATTINY10-TS8R
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ATTINY202-SSNR
Microchip Technology
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ATTINY202-SSFR
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ATTINY402-SSNR
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PIC16F15213T-I/MF
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PIC16F15213-E/MF
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PIC10F200T-I/OT
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ATTINY412-SSNR
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PIC10F202T-I/OT
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ATTINY404-SSNR
Microchip Technology
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