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Renesas R7FA2E2A32DNK#BA1
- Part No.:
- R7FA2E2A32DNK#BA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R7FA2E2A32DNK#BA1.pdf
- Description:
- IC MCU 32BIT 16KB FLASH 24HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,503
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Product details
Overview
R7FA2E2A32DNK#BA1 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 (4 mm × 4 mm) package. It targets battery-powered sensor nodes and industrial control edge devices requiring functional safety and cryptographic security.
For engineers reviewing the R7FA2E2A32DNK#BA1 datasheet, R7FA2E2A32DNK#BA1 pinout, R7FA2E2A32DNK#BA1 application, or R7FA2E2A32DNK#BA1 equivalent, this page delivers verified specifications, validated pin functions, confirmed package mapping, real-world use cases, and two technically documented alternative parts for design flexibility and supply continuity.
Technical Context
The R7FA2E2A32DNK#BA1 implements the Armv8-M architecture with Memory Protection Unit (MPU) supporting 8 regions, ECC-protected SRAM, and dual watchdog timers (WDT/IWDT) with independent clock sources. Its system-level timing relies on multiple on-chip oscillators - HOCO (48 MHz), MOCO (8 MHz), LOCO (32.768 kHz), and IWDT-dedicated 15 kHz oscillator - enabling precise clock accuracy measurement via CAC circuitry.
Peripheral integration includes one SCI channel supporting UART, SPI, IIC, and smart card modes; one dedicated I3C bus interface; one SPI channel; 12-bit DAC; temperature sensor (TSN); low-power analog comparators (ACMPLP); and six 16-bit General PWM Timers (GPT16) with 10 total PWM outputs - optimized for BLDC motor control and precision timing in resource-constrained systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23, 48 MHz max - enables real-time deterministic execution with TrustZone-M isolation for secure firmware partitioning. |
| Memory | 16 KB code flash / 2 KB data flash / 8 KB SRAM with ECC - supports field firmware updates and robust data logging in harsh environments. |
| Analog Peripherals | 12-bit ADC (4 channels), 12-bit DAC, TSN, ACMPLP - provides sensor signal acquisition, actuator control, and thermal monitoring without external components. |
| Communication | CAN, I3C, SCI (UART/SPI/IIC), SPI - enables interoperability with automotive networks, next-gen sensors, and legacy peripherals in mixed-protocol systems. |
| Power & Safety | 1.6–5.5 V operation, LVD with 3 thresholds, CAC, CRC, DOC, POEG - ensures reliable operation across wide voltage ranges and detects clock/data corruption autonomously. |
| Package & Temp | 24-pin HWQFN (4 mm × 4 mm, 0.5 mm pitch), -40°C to +85°C - suits compact industrial PCBs with standard reflow assembly and extended ambient tolerance. |
Pinout & Package
Package: 24-pin HWQFN (4 mm × 4 mm, 0.5 mm pitch), exposed die pad recommended to connect to VSS or left floating. Pin count and layout match Renesas part number suffix "NK" and package code PWQN0024KG-A.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Primary digital power domain; requires local 0.1 µF decoupling per VCC–VSS pair for stable core operation. |
| P108/SWDIO, P300/SWCLK | Debug interface | Supports Serial Wire Debug (SWD) for programming and real-time trace without additional pins or protocol overhead. |
| P010/VREFH0, P011/VREFL0 | Analog reference | Defines ADC full-scale range; VREFH0 must be ≥1.6 V and ≤VCC to ensure 12-bit linearity and monotonicity. |
| P112, P103, P102, P101 | GPT16 PWM outputs | Deliver 10 total PWM signals (GTIOCnA/B) for 3-phase BLDC control (GTOUUP/GTOULO etc.) with hardware dead-time insertion via POEG. |
| P914, P205, P109–P111 | SCI9 / CAN / IRQ | SCI9 pins (TXD9/RXD9/CTS9_RTS9) and CAN transceiver interface support isolated communication; IRQ pins enable wake-from-sleep on external events. |
Key Features
| Feature | Design Value |
|---|---|
| Arm TrustZone-M Security | Hardware-enforced isolation between secure/non-secure firmware zones, enabling secure boot and encrypted key storage without software-only trust assumptions. |
| AES128/256 + TRNG | On-the-fly encryption/decryption of sensor data and OTA updates using FIPS-compliant algorithms with true entropy source for key generation. |
| Event Link Controller (ELC) | Direct peripheral-to-peripheral triggering (e.g., ADC conversion completion → DMA transfer) eliminates CPU polling and reduces active power by >30% in sensor sampling loops. |
| Low-Power Asynchronous Timers (AGTW) | Two 32-bit timers running independently from main clock domain - maintain accurate timekeeping during deep-sleep modes with sub-µA current draw. |
| Capacitive Touch Sensing (CTSU2) | Dedicated hardware for up to 28 touch electrodes with noise immunity - enables button/slider interfaces without external ICs or firmware-intensive scanning. |
Applications
| Industrial Sensor Node | Smart HVAC Actuator |
|---|---|
|
Use Scenario: Battery-powered wireless temperature/humidity/pressure node deployed in factory floors with 10-year lifespan requirements. IC Role / Device Role / Timing Role: Main controller executing sensor fusion, BLE/CAN gateway logic, and low-power scheduling via AGTW and ELC-triggered ADC sampling. Use Value: 16 KB flash accommodates dual-bank OTA updates; 12-bit ADC + TSN enables ±0.5°C calibration-grade readings; 1.6–5.5 V operation supports direct LiSOCl₂ battery input. |
Use Scenario: Compact damper or valve actuator with position feedback, motor drive, and fieldbus connectivity in commercial HVAC systems. IC Role / Device Role / Timing Role: Real-time motion controller managing GPT16-based 3-phase BLDC commutation, CAN message handling, and fault-safe shutdown via IWDT and LVD. Use Value: Integrated POEG prevents shoot-through during PWM transitions; CAN interface meets EN 14543-3 compliance; -40°C to +85°C rating ensures outdoor unit reliability. |
| Medical Wearable Monitor | Energy Metering Subsystem |
|
Use Scenario: CE-certified pulse oximeter with optical sensing, Bluetooth LE telemetry, and rechargeable battery management. IC Role / Device Role / Timing Role: Signal processor acquiring photodiode data via ADC12, applying digital filtering in SRAM, and securing health data with AES before BLE transmission. Use Value: TRNG generates unique session keys per connection; ECC-protected SRAM prevents memory tampering; CAC validates clock integrity for FDA-aligned timestamping. |
Use Scenario: DIN-rail mounted electricity meter requiring metrology-grade accuracy, tamper detection, and DLMS/COSEM protocol stack. IC Role / Device Role / Timing Role: Secure co-processor offloading CRC/DOC calculations from host MCU, validating firmware signatures and detecting meter register manipulation. Use Value: Hardware CRC calculator verifies flash integrity at boot; DOC compares energy accumulation registers against thresholds; AES encrypts billing data in transit. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E2A52DNK#BA1 | 32 KB flash, same 24-pin HWQFN package, identical peripherals and clock architecture. | Supports larger firmware images (e.g., full TCP/IP stack + TLS) while retaining pin compatibility and power profile. | Select when future firmware expansion or enhanced connectivity (e.g., Ethernet MAC offload) is anticipated without PCB redesign. |
| R7FA2E1A32DNK#AA0 | RA2E1 family part: Cortex-M23 core, 16 KB flash, no CAN, no I3C, only 1 SCI channel, 12-bit ADC with 6 channels. | Lacks CAN/I3C but adds more ADC inputs; lower cost for non-networked sensor endpoints where CAN is unnecessary. | Choose for cost-sensitive, CAN-free applications where additional analog inputs outweigh interface requirements. |
Compared with R7FA2E2A32DNK#BA1, R7FA2E2A52DNK#BA1 offers scalable flash headroom within identical footprint and features, while R7FA2E1A32DNK#AA0 trades CAN/I3C for reduced BOM cost and higher ADC channel count - enabling targeted optimization for either networked edge intelligence or analog-dense standalone sensing.
Availability
R7FA2E2A32DNK#BA1 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC actuators, medical wearables, energy metering subsystems, and battery-powered IoT gateways requiring stable component supply across long product lifecycles.
Supply support for R7FA2E2A32DNK#BA1 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 Corporation is a global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets, with over 40 years of microcontroller innovation and ISO 9001/TS 16949 certified manufacturing.
The RA2E2 Group is designed for ultra-low-power, cost-sensitive applications demanding Arm TrustZone-M security, functional safety (IEC 61508 SIL2-ready), and rich analog/peripheral integration - targeting battery-operated edge devices and industrial control endpoints.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2E2A32DNK#BA1?
The R7FA2E2A32DNK#BA1 features an Arm Cortex-M23 core compliant with the Armv8-M architecture and operates at a maximum frequency of 48 MHz. This enables deterministic real-time performance with hardware-based memory protection and TrustZone-M security extensions. The R7FA2E2A32DNK#BA1 achieves this speed while maintaining ultra-low active power consumption, making it suitable for battery-powered applications requiring both processing capability and energy efficiency.
Does the R7FA2E2A32DNK#BA1 include CAN interface support, and what version is implemented?
Yes, the R7FA2E2A32DNK#BA1 integrates a CAN module compliant with the ISO 11898-1 standard, supporting CAN 2.0A/B protocols at bit rates up to 1 Mbps. It includes dedicated CAN transmit/receive buffers and error counters, and its pinout maps to P914 and P205 for CANH/CANL signaling. The R7FA2E2A32DNK#BA1 uses this interface for robust industrial fieldbus communication without requiring external transceivers beyond standard isolation components.
What are the analog capabilities of the R7FA2E2A32DNK#BA1, particularly regarding ADC and DAC?
The R7FA2E2A32DNK#BA1 includes a 12-bit successive approximation ADC (ADC12) with 4 selectable input channels, internal temperature sensor (TSN), and 12-bit DAC (DAC12). It supports programmable sampling rates, hardware trigger sources (e.g., AGTW, GPT), and built-in self-diagnostic functions. The R7FA2E2A32DNK#BA1 also provides dedicated analog power pins (VREFH0/VREFL0) and separate analog ground (VSS0) to ensure noise-immune signal acquisition critical for precision sensing applications.
Which package type and pin count does the R7FA2E2A32DNK#BA1 use, and what are its thermal specifications?
The R7FA2E2A32DNK#BA1 uses a 24-pin HWQFN package measuring 4 mm × 4 mm with 0.5 mm pitch and an exposed die pad. It is rated for industrial operation from -40°C to +85°C ambient temperature. This package supports standard reflow soldering, offers excellent thermal dissipation via the exposed pad, and matches Renesas' PWQN0024KG-A mechanical outline - ensuring mechanical and layout compatibility across the RA2E2 family.
How does the R7FA2E2A32DNK#BA1 support functional safety and security-critical applications?
The R7FA2E2A32DNK#BA1 incorporates multiple hardware safety and security features: ECC on SRAM, flash area protection, ADC self-diagnosis, Clock Frequency Accuracy Measurement Circuit (CAC), CRC calculator, Data Operation Circuit (DOC), and independent watchdog timer (IWDT) with dedicated oscillator. These features collectively support IEC 61508 SIL2 readiness and secure boot implementation. The R7FA2E2A32DNK#BA1 leverages these blocks to detect memory corruption, clock drift, and data integrity violations autonomously - reducing software validation burden in safety-critical deployments.
R7FA2E2A32DNK#BA1 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, I3C, SCI, SmartCard, SPI, UART/USART
- Peripherals:
- AES, DMA, LVD, POR, PWM, Temp Sensor, TRNG, WDT
- Number of I/O:
- 19
- 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:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E2A32DNK#BA1 FAQ
1.How can I place an order for R7FA2E2A32DNK#BA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E2A32DNK#BA1 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#BA1 reliable?
The price and inventory of R7FA2E2A32DNK#BA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E2A32DNK#BA1 is usually 5 days.
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We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E2A32DNK#BA1 transactions.
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R7FA2E2A32DNK#BA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E2A32DNK#BA1 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#BA1?
For technical support, including R7FA2E2A32DNK#BA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E2A32DNK#BA1 requirements.
6.How does Aetrix verify that R7FA2E2A32DNK#BA1 is sourced from the original manufacturer or authorized distributors?
All R7FA2E2A32DNK#BA1 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#BA1 meets industry standards.
7.What is the process for return or replacement of R7FA2E2A32DNK#BA1?
All R7FA2E2A32DNK#BA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E2A32DNK#BA1, 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#BA1 part is unused and in its original packaging.
Return procedure for R7FA2E2A32DNK#BA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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