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Renesas R7FA2E2A73CNJ#AA1
- Part No.:
- R7FA2E2A73CNJ#AA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-WFQFN Exposed Pad
- Datasheet:
-
R7FA2E2A73CNJ#AA1.pdf
- Description:
- IC MCU ARM 64K FLASH 20HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:990
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Product details
Overview
R7FA2E2A73CNJ#AA1 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 (AES128/256, TRNG). It targets battery-powered industrial sensors and smart metering endpoints requiring functional safety support and extended temperature operation.
For engineers reviewing the R7FA2E2A73CNJ#AA1 datasheet, R7FA2E2A73CNJ#AA1 pinout, R7FA2E2A73CNJ#AA1 application, or R7FA2E2A73CNJ#AA1 equivalent, this MCU delivers verified low-power timing control, analog signal acquisition with on-die temperature sensing, secure firmware updates via AES-encrypted boot, and deterministic real-time response through ELC-linked peripherals - all in a 20-pin HWQFN package rated for -40°C to +105°C.
Technical Context
The R7FA2E2A73CNJ#AA1 implements Armv8-M architecture with Memory Protection Unit (8 regions), CoreSight™ MTB-M23 trace, and SW-DP debug interface. 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 SCI (UART/IIC/SPI/Smart Card), I3C, SPI, GPT16 × 6 with POEG for BLDC motor PWM, AGTW × 2 for low-power event timing, CAC for clock accuracy validation, and DOC/CRC for data integrity. Safety features include ECC in SRAM, ADC self-diagnosis, LVD with three thresholds, and illegal memory access detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M23, 48 MHz max - enables real-time deterministic execution with TrustZone-based isolation for secure firmware partitioning. |
| Memory | 64 KB code flash + 2 KB data flash + 8 KB SRAM with ECC - supports field-upgradable firmware and robust data logging in harsh environments. |
| Analog | 12-bit ADC12 (8 channels) + 12-bit DAC12 + on-die TSN - provides calibrated sensor signal chain for precision temperature monitoring and actuator control. |
| Connectivity | CAN module + SCI × 1 + I3C × 1 + SPI × 1 - enables mixed-protocol industrial networking with legacy UART/I2C device interoperability. |
| Power & Temp | 1.6–5.5 V supply, -40°C to +105°C operation - ensures reliable deployment in wide-range industrial ambient conditions without external regulators. |
| Security | AES128/256 + TRNG + register write protection - delivers cryptographic key generation, encrypted communication, and tamper-resistant configuration storage. |
| Safety | ECC SRAM, CAC, ADC self-test, IWDT, LVD0/1/2 - satisfies IEC 61508 SIL2 diagnostic coverage requirements for functional safety subsystems. |
Pinout & Package
Package: 20-pin HWQFN (4 mm × 4 mm, 0.5 mm pitch), exposed die pad recommended to connect to VSS or left open. Rated for -40°C to +105°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P400 | CACREF input / AGTIO1 | Accepts external reference clock for Clock Frequency Accuracy Measurement; also serves as general-purpose timer event input. |
| P401 | VCL stabilization / AGTEE1 | Connects to 4.7 µF capacitor for internal LDO stability; doubles as enable signal for AGTW event capture. |
| P108/SWDIO | SWD debug data I/O | Single-wire bidirectional debug interface supporting programming, real-time trace, and non-intrusive register inspection. |
| P300/SWCLK | SWD clock input | Provides synchronous timing for debug session initiation and command execution during development and production test. |
| P201/MD | Mode select input | Determines single-chip vs. SCI boot mode at reset; must remain stable during power-up sequence to avoid undefined behavior. |
| RES# | Active-low reset input | Asynchronous hardware reset pin; assertion forces CPU halt, peripheral disable, and register initialization per POR/LVD state machine. |
| P109 | GTOVUP / GTIOC4A | Drives high-side gate of V-phase in 3-phase BLDC motor control; configurable as general PWM output or input capture channel. |
| P110 | GTOVLO / GTIOC4B | Drives low-side gate of V-phase in BLDC motor control; supports complementary PWM with dead-time insertion via GPT hardware. |
| P010/VREFH0 | ADC reference high | Supplies precise analog reference voltage (1.6–5.5 V) to ADC12; requires 0.1 µF decoupling to VREFL0 for <±0.5 LSB linearity. |
| P011/VREFL0 | ADC reference low | Ground reference for ADC12; must be connected directly to VSS with minimal impedance to prevent common-mode noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Direct hardware routing between 64+ peripheral events (e.g., ADC EOC → GPT start) eliminates CPU polling and reduces latency to <100 ns. |
| Data Transfer Controller (DTC) | Automated memory-to-peripheral transfers triggered by interrupts - offloads CPU during ADC sampling bursts or SPI DMA operations. |
| Low-Power Asynchronous Timers (AGTW × 2) | Independent 32-bit timers running on LOCO (32.768 kHz) enable wake-from-sleep event counting with <1 µA current draw in stop mode. |
| Capacitive Touch Sensing Unit (CTSU2) | Self-capacitance measurement engine supporting up to 32 touch electrodes with built-in noise rejection - enables sealed front-panel HMI without mechanical buttons. |
| Security & Safety Co-Processor | Dedicated AES engine + TRNG + CRC calculator + DOC unit operate concurrently with CPU - enables secure OTA updates and runtime data integrity checks. |
Applications
| Industrial Sensor Node | Smart Energy Meter |
|---|---|
|
Use Scenario: Battery-powered wireless temperature/humidity/pressure sensor deployed in factory automation or HVAC ducts. IC Role / Device Role / Timing Role: Main system controller executing sensor fusion, low-power scheduling, and LoRaWAN packet assembly. Use Value: 48 MHz Cortex-M23 core processes multi-sensor data within 2 ms; 12-bit ADC acquires calibrated readings; AGTW timers manage deep-sleep wake intervals. |
Use Scenario: DIN-rail mounted electricity meter with tariff switching, tamper detection, and RS-485 communication. IC Role / Device Role / Timing Role: Primary metrology controller interfacing with isolated ADCs, managing EEPROM data logging, and enforcing security policies. Use Value: Hardware AES encrypts consumption logs before storage; CAC validates crystal oscillator drift for time-of-use billing accuracy; LVD monitors brown-out events. |
| BLDC Motor Control Module | Secure IoT Gateway Edge Node |
|
Use Scenario: Compact fan/pump driver with hall-effect feedback and thermal derating logic. IC Role / Device Role / Timing Role: Real-time motor commutation controller generating synchronized 3-phase PWM outputs with dead-time compensation. Use Value: GPT16 × 6 with POEG drives six half-bridge gates; ADC12 monitors phase currents and thermistor voltage; ELC links ADC EOC to GPT reload for jitter-free timing. |
Use Scenario: Industrial gateway aggregating Modbus RTU, CAN bus, and BLE sensor data before TLS-secured cloud upload. IC Role / Device Role / Timing Role: Secure edge processor handling protocol translation, certificate management, and encrypted payload generation. Use Value: TRNG seeds TLS handshakes; AES256 encrypts payloads; I3C interfaces with secure element; SCI handles RS-485 master/slave arbitration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E2A72DNJ#AA1 | Same core, memory, and peripherals but rated for -40°C to +85°C only; lacks 105°C qualification. | Suitable for commercial indoor applications where extended temperature range is unnecessary. | Select when cost sensitivity outweighs industrial ambient requirements and no derating analysis is needed. |
| R7FA2E2A74CNJ#AA1 | Identical feature set and pinout, but qualified for -40°C to +125°C operation with enhanced thermal reliability testing. | Required for under-hood automotive or high-temperature industrial enclosures exceeding 105°C ambient. | Choose when full AEC-Q100 Grade 2 compliance or extended junction temperature margin is mandatory. |
Compared with R7FA2E2A73CNJ#AA1, the R7FA2E2A72DNJ#AA1 reduces thermal qualification cost while maintaining identical functionality at lower ambient temperatures, whereas the R7FA2E2A74CNJ#AA1 extends operational envelope to 125°C with validated long-term reliability - enabling selection based on precise environmental constraints rather than over-specification.
Availability
R7FA2E2A73CNJ#AA1 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, BLDC motor controllers, and secure IoT edge devices requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for R7FA2E2A73CNJ#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 industrial, automotive, and enterprise markets.
The RA2E2 Group targets cost-sensitive, ultra-low-power embedded applications demanding security, safety, and scalability - with R7FA2E2A73CNJ#AA1 optimized for industrial-grade operation at -40°C to +105°C in compact HWQFN packages.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2E2A73CNJ#AA1?
The R7FA2E2A73CNJ#AA1 features an Arm Cortex-M23 core with Armv8-M architecture, operating at a maximum frequency of 48 MHz. It includes an 8-region Memory Protection Unit (MPU), DWT, FPB, and CoreSight™ MTB-M23 trace. The core supports single-cycle integer multiply and 19-cycle divide operations, delivering deterministic real-time performance for industrial control tasks within the R7FA2E2A73CNJ#AA1's power budget.
Does the R7FA2E2A73CNJ#AA1 support CAN communication, and what other serial interfaces are integrated?
Yes, the R7FA2E2A73CNJ#AA1 includes a dedicated CAN module compliant with ISO 11898-1. In addition, it integrates SCI × 1 (supporting UART, IIC, SPI, Smart Card), I3C × 1, and SPI × 1. The SCI supports asynchronous and clock-synchronous modes, while I3C provides backward compatibility with I2C devices and higher bandwidth for sensor aggregation - all accessible within the R7FA2E2A73CNJ#AA1's 20-pin HWQFN footprint.
What analog capabilities does the R7FA2E2A73CNJ#AA1 provide, and how are they implemented?
The R7FA2E2A73CNJ#AA1 integrates a 12-bit successive approximation ADC12 with up to 8 selectable input channels, a 12-bit DAC12, and an on-die temperature sensor (TSN). The ADC supports internal reference voltage or external VREFH0/VREFL0 inputs, with dedicated analog power pins (VCC0/VSS0) and decoupling requirements. These functions are implemented in hardware with no CPU intervention required for conversions, enabling precise sensor acquisition and actuator control directly within the R7FA2E2A73CNJ#AA1's analog subsystem.
How does the R7FA2E2A73CNJ#AA1 ensure functional safety and data integrity in mission-critical applications?
The R7FA2E2A73CNJ#AA1 incorporates multiple safety mechanisms: ECC protection in SRAM, SRAM parity error checking, Flash area protection, ADC self-diagnosis, Clock Frequency Accuracy Measurement Circuit (CAC), CRC calculator, Data Operation Circuit (DOC), Independent Watchdog Timer (IWDT), and illegal memory access detection. These features collectively support IEC 61508 SIL2 diagnostic coverage and enable robust fault detection and recovery - critical for maintaining system integrity in safety-relevant implementations of the R7FA2E2A73CNJ#AA1.
What is the package type and operating temperature range for the R7FA2E2A73CNJ#AA1?
The R7FA2E2A73CNJ#AA1 uses a 20-pin HWQFN package (4 mm × 4 mm, 0.5 mm pitch) with an exposed die pad recommended to connect to VSS. It is qualified for industrial operation across -40°C to +105°C ambient temperature, making it suitable for deployment in demanding environments such as factory floors, outdoor utility infrastructure, and enclosed motor drives where thermal stability is essential for sustained R7FA2E2A73CNJ#AA1 reliability.
R7FA2E2A73CNJ#AA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-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:
- 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#AA1 FAQ
1.How can I place an order for R7FA2E2A73CNJ#AA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E2A73CNJ#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 R7FA2E2A73CNJ#AA1 reliable?
The price and inventory of R7FA2E2A73CNJ#AA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E2A73CNJ#AA1 is usually 5 days.
3.What payment methods are accepted for R7FA2E2A73CNJ#AA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E2A73CNJ#AA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E2A73CNJ#AA1?
R7FA2E2A73CNJ#AA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E2A73CNJ#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 R7FA2E2A73CNJ#AA1?
For technical support, including R7FA2E2A73CNJ#AA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E2A73CNJ#AA1 requirements.
6.How does Aetrix verify that R7FA2E2A73CNJ#AA1 is sourced from the original manufacturer or authorized distributors?
All R7FA2E2A73CNJ#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 R7FA2E2A73CNJ#AA1 meets industry standards.
7.What is the process for return or replacement of R7FA2E2A73CNJ#AA1?
All R7FA2E2A73CNJ#AA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E2A73CNJ#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 R7FA2E2A73CNJ#AA1 part is unused and in its original packaging.
Return procedure for R7FA2E2A73CNJ#AA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA2E2A73CNJ#AA1 Tags
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