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Renesas R7FA2E2A73CNJ#HA0
- Part No.:
- R7FA2E2A73CNJ#HA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-WFQFN Exposed Pad
- Datasheet:
-
R7FA2E2A73CNJ#HA0.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 20HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,428
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Product details
Overview
R7FA2E2A73CNJ#HA0 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 endpoints requiring functional safety support and extended temperature operation.
For engineers reviewing the R7FA2E2A73CNJ#HA0 datasheet, R7FA2E2A73CNJ#HA0 pinout, R7FA2E2A73CNJ#HA0 application, or R7FA2E2A73CNJ#HA0 equivalent, key selection criteria include its -40°C to +105°C industrial temperature rating, 20-pin HWQFN (4 mm × 4 mm) package, dual watchdog timers (WDT/IWDT), ECC-protected SRAM, and I3C/SPI/SCI peripheral integration for compact, robust edge-node designs.
Technical Context
The R7FA2E2A73CNJ#HA0 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/MOCO/LOCO oscillators with trim capability and a dedicated IWDT oscillator (15 kHz), allowing precise low-power timing control across voltage and temperature ranges.
Peripheral interconnect is managed via Event Link Controller (ELC) and Data Transfer Controller (DTC), enabling autonomous peripheral-to-peripheral data movement without CPU intervention. Safety features include ADC self-diagnosis, CAC for clock accuracy monitoring, CRC calculator, DOC for 16-bit arithmetic validation, and register write protection - all aligned with IEC 61508 SIL2 readiness.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 48 MHz max; supports Armv8-M TrustZone-ready execution with MPU for memory isolation. |
| Memory | 64 KB code flash (100k erase cycles), 2 KB data flash, 8 KB SRAM with ECC/parity; enables firmware updates and runtime data integrity. |
| Analog Peripherals | 12-bit ADC12 (8 channels), 12-bit DAC12, on-die temperature sensor (TSN); supports precision sensor signal conditioning and closed-loop control. |
| Communication | CAN 2.0B, I3C, SPI, SCI (UART/I²C/SPI/Smart Card), 5V-tolerant GPIOs; provides mixed-protocol connectivity for industrial fieldbus and sensor networks. |
| Power & Temp | 1.6–5.5 V supply range; operates from -40°C to +105°C in 20-pin HWQFN; suitable for unregulated battery or wide-input industrial power rails. |
| Safety & Security | AES-128/256, TRNG, CAC, CRC, DOC, IWDT, LVD with three thresholds; meets baseline requirements for functional safety and secure boot. |
Pinout & Package
Package: 20-pin HWQFN (4 mm × 4 mm, 0.5 mm pitch), exposed die pad (recommended connection to VSS). Operating temperature range: -40°C to +105°C (industrial grade).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P400 | CACREF input | Accepts external reference clock for Clock Frequency Accuracy Measurement Circuit calibration. |
| P401 | AGTIO1 | Asynchronous general-purpose timer I/O pin for pulse capture or output generation in deep-sleep modes. |
| VCL | Analog LDO stabilization | Connects to 4.7 µF capacitor for internal analog regulator stability; critical for ADC/DAC accuracy. |
| VCC / VSS | Main power / ground | 1.6–5.5 V supply pair; decoupling with 0.1 µF capacitors required per pin for noise immunity. |
| RES | Reset input | Active-low asynchronous reset; initiates full system initialization and state clearing. |
| SWDIO / SWCLK | Debug interface | Two-pin Serial Wire Debug port for programming, real-time trace, and non-intrusive breakpoint debugging. |
| P201/MD | Mode select | Configures single-chip or SCI boot mode during reset release; must remain static post-reset. |
| P108 / P300 | SWDIO / SWCLK | Dedicated debug pins; no shared functionality - reserved exclusively for debug access. |
| P010 / P011 | VREFH0 / VREFL0 | ADC reference voltage inputs; connect to VCC/VSS when internal reference is unused. |
| P109–P112, P103, P102, P101, P100 | GPIO / Peripheral mux | Multi-function pins supporting GPT PWM outputs, SCI/I3C/SPI signals, ADC inputs (AN005–AN022), and key interrupts (KR00–KR03). |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Supports multiple low-power modes with sub-μA retention current; AGTW timers operate independently during deep sleep for wake-up event handling. |
| Hardware safety acceleration | CAC validates clock accuracy in real time; CRC and DOC perform autonomous data integrity checks without CPU load or latency penalty. |
| Secure firmware foundation | AES-128/256 engine accelerates encryption/decryption; TRNG supplies entropy for secure key generation and challenge-response protocols. |
| Robust industrial I/O | 5V-tolerant pins (P400/P401) interface directly with legacy 5V logic; open-drain, pull-up, and 5V-tolerance configurable per port. |
| Motor control ready | GPT16 × 6 with POEG enables 3-phase BLDC gate drive (GTOUUP/GTOULO etc.) with dead-time insertion and fault shutdown linkage. |
Applications
| Industrial Sensor Node | Smart Energy Metering |
|---|---|
Use Scenario: Battery-powered wireless temperature/humidity/pressure sensor deployed in factory HVAC zones or remote substations. IC Role / Device Role / Timing Role: Main system controller executing sensor acquisition, local preprocessing, CAN/I3C data aggregation, and low-power scheduling. Use Value: 48 MHz Cortex-M23 core delivers sufficient compute headroom for sensor fusion algorithms while maintaining sub-10 μA deep-sleep current. | Use Scenario: DIN-rail mounted electricity meter with tamper detection, tariff switching, and PLC/RF backhaul communication. IC Role / Device Role / Timing Role: Secure metering controller managing ADC sampling, energy calculation, AES-encrypted data storage, and CAN-based utility network interface. Use Value: Integrated 12-bit ADC with self-diagnosis and ECC-protected SRAM ensure metrological accuracy and long-term reliability under thermal stress. |
| Automated Test Equipment Front-End | Building Automation Controller |
Use Scenario: Portable handheld calibrator verifying analog sensor outputs (4–20 mA, 0–10 V) with onboard reference and isolation. IC Role / Device Role / Timing Role: Precision analog subsystem controller coordinating DAC stimulus generation, ADC measurement, and isolated UART reporting. Use Value: Matched 12-bit ADC/DAC with internal temperature sensor enables auto-calibration routines without external components. | Use Scenario: Distributed HVAC zone controller interfacing with thermostats, actuators, and BACnet/IP gateways via CAN or I3C. IC Role / Device Role / Timing Role: Real-time environmental coordinator managing fan speed, valve position, and occupancy sensing via GPT PWM and AGTW timers. Use Value: ELC-linked peripherals allow sensor-triggered actuator response within microseconds - eliminating CPU polling overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E2A73CNK#HA0 | 24-pin HWQFN package; adds 4 additional GPIOs and one extra ADC channel (AN019–AN022 fully available). | Preferred where board layout allows larger footprint and higher I/O count is needed for multi-sensor expansion. | Select when additional analog inputs or PWM outputs are required beyond the 20-pin variant's 15 GPIOs and 8 ADC channels. |
| R7FA2E2A53CNJ#HA0 | 32 KB code flash, same 20-pin HWQFN package and peripheral set; reduced memory footprint. | Targeted at cost-sensitive designs with simpler firmware and no future OTA update requirements. | Choose when application firmware fits comfortably in 32 KB and long-term code growth is not anticipated. |
Compared with R7FA2E2A73CNK#HA0, the R7FA2E2A73CNJ#HA0 offers identical core performance and safety features in a smaller 20-pin footprint but trades 4 GPIOs and one ADC channel for space savings; versus R7FA2E2A53CNJ#HA0, it doubles flash capacity for field-upgradable firmware while retaining full peripheral compatibility.
Availability
R7FA2E2A73CNJ#HA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy metering, and building automation controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R7FA2E2A73CNJ#HA0 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 applications.
The RA2E2 Group is designed for ultra-low-power, cost-sensitive industrial and consumer edge devices - emphasizing energy efficiency, functional safety, and seamless integration of analog, communication, and security peripherals in compact packages.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2E2A73CNJ#HA0?
The R7FA2E2A73CNJ#HA0 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), single-cycle integer multiplier, and 19-cycle divider. This architecture enables deterministic real-time performance and memory isolation for safety-critical tasks, making the R7FA2E2A73CNJ#HA0 suitable for industrial control and sensor applications demanding both efficiency and reliability.
Does the R7FA2E2A73CNJ#HA0 support CAN communication, and what version is implemented?
Yes, the R7FA2E2A73CNJ#HA0 integrates a CAN module compliant with ISO 11898-1 (CAN 2.0B), supporting both standard and extended frame formats with programmable bit rates up to 1 Mbps. The peripheral includes message objects, FIFO buffering, and error confinement - enabling robust fieldbus connectivity in industrial automation and energy systems where the R7FA2E2A73CNJ#HA0 serves as a node controller.
What are the supported operating voltage and temperature ranges for the R7FA2E2A73CNJ#HA0?
The R7FA2E2A73CNJ#HA0 operates from 1.6 V to 5.5 V over an industrial temperature range of -40°C to +105°C. Its 20-pin HWQFN package is rated for this full range, and the device includes Low Voltage Detection (LVD) with three independent thresholds (LVD0/LVD1/LVD2) for system-level brown-out protection - critical for reliable operation in battery-powered or wide-input industrial environments where the R7FA2E2A73CNJ#HA0 is deployed.
How does the R7FA2E2A73CNJ#HA0 implement hardware security and functional safety features?
The R7FA2E2A73CNJ#HA0 includes AES-128/256 encryption engines, True Random Number Generator (TRNG), Cyclic Redundancy Check (CRC) calculator, Data Operation Circuit (DOC), Clock Frequency Accuracy Measurement Circuit (CAC), and ECC-protected SRAM. These features collectively support secure boot, runtime integrity verification, and IEC 61508 SIL2-aligned diagnostics - ensuring the R7FA2E2A73CNJ#HA0 meets foundational requirements for safety-critical industrial firmware.
What development tools and debug interfaces are supported by the R7FA2E2A73CNJ#HA0?
The R7FA2E2A73CNJ#HA0 supports Serial Wire Debug (SWD) via dedicated SWDIO and SWCLK pins (P108 and P300), enabling full-featured programming, real-time tracing, and non-intrusive breakpoints using Renesas E2 studio, CS+ or third-party IDEs. It is compatible with Renesas E2 Lite and E2 emulator debug probes - providing complete visibility into the R7FA2E2A73CNJ#HA0's execution flow, memory state, and peripheral registers during development and validation.
R7FA2E2A73CNJ#HA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-WFQFN Exposed Pad
- Series:
- RA2E2
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 16
- 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 7x12b SAR
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E2A73CNJ#HA0 FAQ
1.How can I place an order for R7FA2E2A73CNJ#HA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E2A73CNJ#HA0 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 R7FA2E2A73CNJ#HA0 reliable?
The price and inventory of R7FA2E2A73CNJ#HA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E2A73CNJ#HA0 is usually 5 days.
3.What payment methods are accepted for R7FA2E2A73CNJ#HA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E2A73CNJ#HA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E2A73CNJ#HA0?
R7FA2E2A73CNJ#HA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E2A73CNJ#HA0 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 R7FA2E2A73CNJ#HA0?
For technical support, including R7FA2E2A73CNJ#HA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E2A73CNJ#HA0 requirements.
6.How does Aetrix verify that R7FA2E2A73CNJ#HA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E2A73CNJ#HA0 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 R7FA2E2A73CNJ#HA0 meets industry standards.
7.What is the process for return or replacement of R7FA2E2A73CNJ#HA0?
All R7FA2E2A73CNJ#HA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E2A73CNJ#HA0, 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 R7FA2E2A73CNJ#HA0 part is unused and in its original packaging.
Return procedure for R7FA2E2A73CNJ#HA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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