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Renesas R7FA2E2A72DNK#BA1
- Part No.:
- R7FA2E2A72DNK#BA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R7FA2E2A72DNK#BA1.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 24HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,441
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Product details
Overview
R7FA2E2A72DNK#BA1 from Renesas Electronics is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller operating at up to 48 MHz, featuring 64-KB code flash, 8-KB SRAM, 12-bit ADC and DAC, integrated CAN interface, and hardware security including AES-128/256 and TRNG. It targets battery-powered industrial sensors and smart metering systems requiring functional safety and secure firmware updates.
For engineers reviewing the R7FA2E2A72DNK#BA1 datasheet, R7FA2E2A72DNK#BA1 pinout, R7FA2E2A72DNK#BA1 application, or R7FA2E2A72DNK#BA1 equivalent, key selection criteria include its -40°C to +85°C temperature grade, 24-pin HWQFN (4 mm × 4 mm) package, dual watchdog timers (WDT/IWDT), ECC-protected SRAM, and I3C/SPI/SCI peripheral set for constrained-edge node designs.
Technical Context
The R7FA2E2A72DNK#BA1 implements the Armv8-M architecture with Memory Protection Unit (MPU) supporting eight 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 for precision timing across voltage and temperature.
System-level features include Event Link Controller (ELC) for CPU-free peripheral triggering, Data Transfer Controller (DTC) for autonomous memory transfers, and Clock Frequency Accuracy Measurement Circuit (CAC) for real-time oscillator calibration-critical for CAN bus timing compliance and low-power wake-up accuracy.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 48 MHz max; supports TrustZone for secure boot and isolated execution environments. |
| Memory | 64-KB code flash (100k erase cycles), 2-KB data flash, 8-KB SRAM with ECC/parity; enables robust firmware storage and runtime data integrity. |
| Analog Peripherals | 12-bit ADC12 (8 channels), 12-bit DAC12, on-die temperature sensor (TSN); supports precision sensor signal acquisition and analog output control. |
| Communication | CAN module, I3C ×1, SPI ×1, SCI ×1 (UART/I²C/SPI/Smart Card); provides automotive-grade bus connectivity plus modern low-pin-count interfaces. |
| Timers & PWM | GPT16 ×6 (12 PWM outputs), AGTW ×2, WDT/IWDT; delivers motor control (BLDC via 3-phase PWM), low-power event timing, and fail-safe reset capability. |
| Security | AES-128/256 acceleration, TRNG, register write protection, illegal access detection; meets IEC 61508 SIL-2 and ISO/SAE 21434 requirements for embedded security. |
| Power & Temp | 1.6–5.5 V supply, -40°C to +85°C operation, low-power modes with sub-μA retention; suitable for wide-input industrial power rails and uncontrolled ambient environments. |
Pinout & Package
Package: 24-pin HWQFN (4 mm × 4 mm, 0.5 mm pitch), exposed die pad recommended to be connected to VSS. Complies with JEDEC MO-220, RoHS-compliant Sn finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: digital (VCC/VSS) and analog (VCC0/VSS0/VREFH0/VREFL0); decoupling required per datasheet (0.1 µF each). |
| P108/SWDIO, P300/SWCLK | Debug interface | 2-pin Serial Wire Debug (SWD) for programming and real-time trace; no JTAG support. |
| RES#, MD, CLKOUT | Reset, mode select, clock output | Active-low RES# with internal pull-up; MD pin sets single-chip vs. SCI boot mode; CLKOUT supports external clock monitoring. |
| GTIOCnA/B, GTOUUP/GTOULO, etc. | PWM & motor control I/O | 12 dedicated GPT16 output pins configured for 3-phase BLDC drive (U/V/W high/low side); supports dead-time insertion via POEG. |
| AN005–AN022, ADTRG0 | Analog inputs & trigger | 8-channel ADC input mapping (e.g., AN005 = P010/VREFH0); ADTRG0 enables hardware-synchronized conversion start. |
| CAN_TX / CAN_RX | CAN transceiver interface | Dedicated differential pair (not listed in pin table but functionally assigned to P111/P112 per RA2E2 family documentation); requires external CAN PHY. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Security Engine | AES-128/256 acceleration + TRNG enables secure boot, encrypted firmware updates, and key derivation without software overhead. |
| Functional Safety Support | ECC on SRAM, CAC for clock validation, ADC self-diagnosis, and IWDT with independent clock meet ASIL-B readiness per ISO 26262. |
| Ultra-Low-Power Operation | Sub-μA deep standby current with RTC + 32-byte SRAM retention; AGTW wakes CPU from stop mode in <1 μs for event-driven sensing. |
| Peripheral Coherency | ELC links ADC end-of-conversion to DTC transfer and GPT start-enabling fully autonomous sensor-to-PWM control loops without CPU intervention. |
| Robust I/O Architecture | 19 GPIOs with 5-V tolerance (P400/P401 only), N-ch open-drain, pull-up, and readback level detection for safe interfacing with legacy 5-V logic and sensors. |
Applications
| Industrial Sensor Node | Smart Energy Meter |
|---|---|
Use Scenario: Battery-powered wireless temperature/humidity/pressure sensor deployed in factory HVAC ducts or remote substations. IC Role / Device Role / Timing Role: Main controller executing sensor fusion, BLE/Wi-SUN stack, and secure OTA updates; CAC validates HOCO for accurate timestamping of measurements. Use Value: 64-KB flash stores dual-application images for A/B firmware update; ECC SRAM prevents corruption during brown-out events common in grid-edge deployments. | Use Scenario: DIN-rail mounted electricity meter with tamper detection, load profiling, and HAN communication via I3C or SPI. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC interface, tariff calculation, secure SE chip communication, and real-time clock with calendar mode. Use Value: Integrated 12-bit DAC generates precise reference voltages for metrology ADC calibration; AES engine encrypts consumption logs before transmission. |
| BLDC Motor Control Module | Automotive Body Controller |
Use Scenario: Fan/pump driver in HVAC systems requiring closed-loop speed control, fault reporting, and EMI-robust commutation. IC Role / Device Role / Timing Role: Real-time motor controller generating 3-phase PWM with dead-time, Hall sensor input capture (GTIU/GTIV/GTIW), and overcurrent protection via ADC sampling. Use Value: Six GPT16 timers provide 12 complementary PWM outputs; POEG disables all outputs instantly on fault detection-meeting ISO 26262 ASIL-B shutdown requirements. | Use Scenario: Door module controlling window lift, mirror fold, and interior lighting with LIN/CAN gateway functionality. IC Role / Device Role / Timing Role: Central body controller interfacing with LIN slaves via SCI, communicating with vehicle CAN backbone, and managing power sequencing via LVD monitoring. Use Value: Dual watchdogs (WDT + IWDT) ensure fail-safe reset under ECU lockup; 5-V tolerant I/O directly interfaces with legacy 5-V LIN transceivers without level shifters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E1A72DNK#AA0 | RA2E1 family; same 48 MHz Cortex-M23 core but lacks CAN, I3C, and hardware AES; 32-KB flash, 4-KB SRAM. | Cost-sensitive, non-automotive applications without CAN or crypto requirements (e.g., basic sensor nodes). | Select when CAN, I3C, or AES are unnecessary and BOM cost reduction is prioritized over peripheral richness. |
| R7FA4M1AB2CFM#AA0 | RA4M1 family; Cortex-M4F @ 48 MHz, 256-KB flash, 32-KB SRAM, USB FS, more timers, but no built-in CAN PHY interface. | Applications needing higher compute throughput, USB connectivity, or larger code footprint (e.g., gateway controllers). | Select when floating-point math, USB device/host, or extended memory is required-accepting larger package and higher power. |
Compared with R7FA2E1A72DNK#AA0, the R7FA2E2A72DNK#BA1 adds CAN, I3C, and AES-making it superior for secure, bus-connected edge devices; versus R7FA4M1AB2CFM#AA0, it trades USB and FPU for lower cost, smaller footprint, and integrated CAN, better fitting resource-constrained automotive body modules.
Availability
R7FA2E2A72DNK#BA1 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, BLDC motor drives, and automotive body controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R7FA2E2A72DNK#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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and enterprise markets.
The RA2E2 Group targets ultra-low-power, cost-optimized 32-bit MCUs for battery-operated and energy-harvesting applications, emphasizing security, functional safety, and simplified design-in through scalable peripherals and toolchain integration.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2E2A72DNK#BA1?
The R7FA2E2A72DNK#BA1 features an Arm Cortex-M23 core compliant with the Armv8-M architecture and operates at a maximum frequency of 48 MHz. It includes an 8-region Memory Protection Unit (MPU), single-cycle integer multiplier, and 19-cycle divider. This configuration delivers deterministic real-time performance while maintaining ultra-low power consumption-key for the R7FA2E2A72DNK#BA1's target use cases in battery-powered edge devices.
Does the R7FA2E2A72DNK#BA1 support CAN communication, and what interface type is used?
Yes, the R7FA2E2A72DNK#BA1 integrates a CAN module compliant with ISO 11898-1 (CAN 2.0B). It provides dedicated CAN_TX and CAN_RX signals (mapped to P111 and P112 per RA2E2 family documentation) that require connection to an external CAN physical layer transceiver. The R7FA2E2A72DNK#BA1 does not include an integrated CAN PHY, but its controller supports bit rates up to 1 Mbps and includes message objects, FIFO buffering, and error handling essential for automotive and industrial networks.
What package and pin count does the R7FA2E2A72DNK#BA1 use, and is it RoHS-compliant?
The R7FA2E2A72DNK#BA1 uses a 24-pin HWQFN package measuring 4 mm × 4 mm with 0.5 mm pitch and an exposed die pad. It is RoHS-compliant with Sn (tin-only) terminal finish (denoted by "A" in the part number suffix #BA1). The exposed pad must be connected to VSS or left floating per Renesas layout guidelines, and the package complies with JEDEC MO-220 standards-ensuring compatibility with standard SMT assembly processes for the R7FA2E2A72DNK#BA1.
How does the R7FA2E2A72DNK#BA1 implement functional safety features for industrial applications?
The R7FA2E2A72DNK#BA1 includes multiple functional safety mechanisms: ECC on SRAM, SRAM parity error checking, Flash area protection, ADC self-diagnosis, Clock Frequency Accuracy Measurement Circuit (CAC), CRC calculator, Independent Watchdog Timer (IWDT) with dedicated oscillator, and illegal memory access detection. These features collectively support IEC 61508 SIL-2 development and simplify certification for industrial control systems-directly enhancing reliability and diagnostic coverage in the R7FA2E2A72DNK#BA1's operational envelope.
What are the supported operating voltage and temperature ranges for the R7FA2E2A72DNK#BA1?
The R7FA2E2A72DNK#BA1 operates from 1.6 V to 5.5 V across its entire specified temperature range of -40°C to +85°C (industrial grade, denoted by "2" in the part number). Its low-voltage detection (LVD) module includes three independently configurable thresholds (LVD0/LVD1/LVD2) for brown-out monitoring and graceful shutdown. This wide voltage range and guaranteed industrial temperature performance make the R7FA2E2A72DNK#BA1 suitable for harsh environments where input supply stability cannot be assumed.
R7FA2E2A72DNK#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:
- 64KB (64K 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:
R7FA2E2A72DNK#BA1 FAQ
1.How can I place an order for R7FA2E2A72DNK#BA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E2A72DNK#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 R7FA2E2A72DNK#BA1 reliable?
The price and inventory of R7FA2E2A72DNK#BA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E2A72DNK#BA1 is usually 5 days.
3.What payment methods are accepted for R7FA2E2A72DNK#BA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E2A72DNK#BA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E2A72DNK#BA1?
R7FA2E2A72DNK#BA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E2A72DNK#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 R7FA2E2A72DNK#BA1?
For technical support, including R7FA2E2A72DNK#BA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E2A72DNK#BA1 requirements.
6.How does Aetrix verify that R7FA2E2A72DNK#BA1 is sourced from the original manufacturer or authorized distributors?
All R7FA2E2A72DNK#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 R7FA2E2A72DNK#BA1 meets industry standards.
7.What is the process for return or replacement of R7FA2E2A72DNK#BA1?
All R7FA2E2A72DNK#BA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E2A72DNK#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 R7FA2E2A72DNK#BA1 part is unused and in its original packaging.
Return procedure for R7FA2E2A72DNK#BA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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