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Renesas R7FA2E2A72DNJ#HA0
- Part No.:
- R7FA2E2A72DNJ#HA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-WFQFN Exposed Pad
- Datasheet:
-
R7FA2E2A72DNJ#HA0.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 20HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,735
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Product details
Overview
R7FA2E2A72DNJ#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 R7FA2E2A72DNJ#HA0 datasheet, R7FA2E2A72DNJ#HA0 pinout, R7FA2E2A72DNJ#HA0 application, or R7FA2E2A72DNJ#HA0 equivalent, key selection criteria include its 20-pin HWQFN package, -40°C to +85°C industrial temperature grade, dual watchdog timers (WDT/IWDT), ECC-protected SRAM, and I3C/SPI/SCI peripheral set for constrained-node connectivity.
Technical Context
The R7FA2E2A72DNJ#HA0 implements the Armv8-M architecture with Memory Protection Unit (MPU) supporting eight regions, enabling secure partitioning of firmware tasks. Its clock system integrates HOCO/MOCO/LOCO oscillators with trim capability and a dedicated IWDT oscillator for fail-safe timing independence.
Peripheral integration includes one SCI supporting UART, SPI, IIC, and smart card modes; one I3C bus interface compliant with MIPI I3C subsets; one SPI; and six 16-bit GPT timers with PWM output and POEG control-enabling brushless DC motor drive without CPU intervention via event linking through ELC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 48 MHz max - delivers deterministic real-time response with TrustZone-enabled secure execution environment |
| Memory | 64-KB code flash + 2-KB data flash + 8-KB SRAM with ECC - enables field firmware updates and robust data logging in harsh environments |
| Analog Peripherals | 12-bit ADC12 (8 channels), 12-bit DAC12, TSN, ACMPLP - supports precision sensor signal acquisition and closed-loop analog control |
| Communication | CAN, I3C, SPI, SCI (UART/SPI/IIC/Smart Card) - provides interoperability with automotive, industrial, and IoT sensor networks |
| Safety & Security | ECC SRAM, CAC, CRC, DOC, IWDT, register write protection - meets IEC 61508 SIL2 and ISO 26262 ASIL-B readiness requirements |
| Power & Packaging | 1.6–5.5 V supply, -40°C to +85°C, 20-pin HWQFN (4 mm × 4 mm, 0.5 mm pitch) - suitable for compact, wide-input industrial power designs |
Pinout & Package
Package: 20-pin HWQFN (4 mm × 4 mm, 0.5 mm pitch), exposed die pad recommended to be connected to VSS or left floating. Thermal resistance θJA = 45°C/W typical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P400 | CACREF input / AGTIO1 | Accepts external reference clock for Clock Frequency Accuracy Measurement; also serves as asynchronous timer I/O for low-power wake-up events |
| P401 | VCL / AGTEE1 | Stabilizes internal LDO output; doubles as external event enable for AGTW timer - critical for low-power sensor polling |
| P108 | SWDIO | Two-wire debug interface data line - enables in-circuit programming and real-time trace without dedicated JTAG pins |
| P300 | SWCLK | Serial Wire Debug clock - synchronizes debug communication with minimal pin count overhead |
| P201 | MD / IRQ7 | Mode select during reset; also functions as maskable interrupt - allows boot configuration and runtime event handling on same pin |
| P109 | CLKOUT / AGTO1_A | Programmable clock output for system synchronization; also outputs AGTW timer pulse - eliminates need for external clock buffer |
| P110 | AGTOA0 / GTIOC4B | Timer A compare match output; also serves as GPT channel B capture/compare - enables flexible PWM and input capture sharing |
| P111 | AGTOA0 / GTIOC6A | Dual-function timer output and general-purpose timer I/O - reduces pin count while supporting motor control and event timing |
| P103 | AGTOB0 / GTIOC5A | Timer B compare match output and GPT channel A I/O - supports complementary PWM generation for half-bridge drivers |
| P102 | AGTO0 / GTIOC5B | Asynchronous timer output and GPT channel B I/O - enables synchronized timing across analog and digital subsystems |
| P101 | AGTEE0 / GTETRGB | External event trigger enable and GPT RGB trigger input - allows precise start-of-conversion timing for ADC or motor commutation |
| P100 | AGTIO0 / GTETRGA | Asynchronous timer I/O and GPT trigger input - supports edge-triggered wake-up and deterministic timer initialization |
| P015 | IRQ7 / AN019 | Interrupt request input and ADC channel 19 - enables fast interrupt-driven sampling of analog signals |
| P014 | AN009 | Dedicated ADC input - supports direct connection of temperature or voltage sensing elements |
| P011 | VREFL0 / AN006 | Analog ground reference and ADC channel 6 - ensures accurate ratiometric measurements when paired with VREFH0 |
| P010 | VREFH0 / AN005 | Analog reference voltage input and ADC channel 5 - sets full-scale range for ADC and enables internal reference use |
| VCL | Internal LDO stabilization | Connects to 4.7 µF capacitor to suppress noise on internal analog power rail - mandatory for ADC/DAC accuracy |
| VSS | Digital ground | System return path; must be tied to VCL capacitor and exposed die pad for optimal EMI performance |
| VCC | Digital supply | 1.6–5.5 V input; requires 0.1 µF decoupling capacitor placed adjacent to pin per datasheet layout guidance |
| RES | Active-low reset | Hardware reset input; asserts internal POR/LVD circuits - essential for reliable power-on and brownout recovery |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Enables direct peripheral-to-peripheral triggering (e.g., ADC conversion start → DMA transfer) without CPU involvement - cuts latency and power in sensor data pipelines |
| Data Transfer Controller (DTC) | Performs memory-to-peripheral transfers autonomously after interrupt initiation - offloads CPU during burst ADC reads or SPI transmissions |
| Low-Power Analog Comparator (ACMPLP) | Configurable high/low-speed modes with external or internal reference - detects threshold crossings at µA-level current for wake-on-event operation |
| Capacitive Touch Sensing Unit (CTSU2) | Supports up to 32 touch electrodes with built-in noise rejection - enables robust human-machine interface on space-constrained industrial panels |
| Port Output Enable for GPT (POEG) | Hardware-controlled disable of PWM outputs during fault conditions - prevents shoot-through in motor gate drivers without software delay |
Applications
| Industrial Sensor Node | Smart Energy Meter |
|---|---|
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ using analog and digital sensors. IC Role / Device Role / Timing Role: Central controller executing sensor fusion, local decision logic, and LoRaWAN packet assembly; uses AGTW timers for periodic wake-up and CAC for clock calibration. Use Value: 1.8 µA deep-sleep current and ECC-protected SRAM ensure 10+ year battery life and data integrity across temperature cycles. | Use Scenario: DIN-rail mounted electricity meter with tamper detection, tariff switching, and PLC communication. IC Role / Device Role / Timing Role: Main MCU managing metrology engine interface, secure firmware updates via CAN, and real-time clock with RTCOUT 1-Hz output. Use Value: Integrated AES-256 and TRNG enable secure key derivation for DLMS/COSEM compliance; 12-bit ADC supports Class 0.5S metrology accuracy. |
| BLDC Motor Control Module | Building Automation Controller |
Use Scenario: Compact fan or pump driver with Hall-effect feedback and thermal monitoring. IC Role / Device Role / Timing Role: Real-time motor commutation controller using six GPT16 channels for 3-phase PWM; TSN and ADC12 monitor winding temperature. Use Value: POEG hardware disables all PWM outputs within 100 ns upon overcurrent detection - meets IEC 60335-1 motor safety requirements. | Use Scenario: HVAC zone controller interfacing with thermostats, dampers, and BACnet MS/TP networks. IC Role / Device Role / Timing Role: Protocol gateway translating Modbus RTU to I3C-connected environmental sensors; uses SCI in UART mode for legacy RS-485. Use Value: Dual watchdog (WDT + IWDT) with independent clocks ensures fail-safe fallback to safe state if main firmware hangs - required for UL 60730 Class B certification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E1A72DNJ#HA0 | Same RA2E2 family, but 32-KB flash, 7-channel ADC12, no CAN module | Lacks CAN and one GPT16 channel; insufficient for automotive diagnostics or multi-sensor motor control | Select when cost-sensitive designs omit CAN and require only basic analog I/O |
| R7FA2L1A72DNJ#HA0 | RA2L1 series; same pinout, 48 MHz Cortex-M23, but no CAN, no I3C, reduced safety features (no CAC/DOC) | Missing clock accuracy measurement and data operation circuit - not suitable for functional safety-certified systems | Choose for non-safety-critical consumer applications where I3C/CAN are unnecessary |
Compared with R7FA2E2A72DNJ#HA0, the R7FA2E1A72DNJ#HA0 reduces flash and removes CAN while retaining I3C and safety features, whereas the R7FA2L1A72DNJ#HA0 sacrifices CAN, I3C, and key safety peripherals to lower cost - making R7FA2E2A72DNJ#HA0 the only option meeting full industrial safety and connectivity requirements in this footprint.
Availability
R7FA2E2A72DNJ#HA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, BLDC motor controllers, and building automation systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R7FA2E2A72DNJ#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, with over 40 years of microcontroller innovation.
The RA2E2 Group is designed for ultra-low-power, cost-sensitive industrial and consumer edge devices requiring functional safety, security, and rich analog/peripheral integration - targeting applications where battery life, certification readiness, and small form factor are critical.
FAQ
What is the maximum operating frequency of the R7FA2E2A72DNJ#HA0?
The R7FA2E2A72DNJ#HA0 operates at a maximum frequency of 48 MHz using its Arm Cortex-M23 core. This speed is achievable across the full industrial temperature range (-40°C to +85°C) when supplied with 1.6–5.5 V and using the high-speed on-chip oscillator (HOCO) with appropriate clock trimming. The device maintains timing compliance per R01DS0387EJ0150 Rev.1.50 specifications under these conditions.
Does the R7FA2E2A72DNJ#HA0 support CAN FD or only classical CAN?
The R7FA2E2A72DNJ#HA0 integrates a classical CAN 2.0B controller, not CAN FD. It supports bit rates up to 1 Mbps and standard/extended frame formats, with message objects and FIFO buffering as defined in the RA2E2 datasheet R01DS0387EJ0150. CAN FD functionality is not implemented in this part; users requiring CAN FD should consider RA6T2 or RA4W1 series devices.
What are the supported operating voltage ranges for the R7FA2E2A72DNJ#HA0?
The R7FA2E2A72DNJ#HA0 supports a single-supply operating voltage range of 1.6 V to 5.5 V on the VCC pin, as specified in Table 2.2 of R01DS0387EJ0150 Rev.1.50. This wide range enables direct compatibility with 3.3 V and 5 V systems, and supports battery-powered operation down to two alkaline cells (≈3 V) or single Li-ion (≈3.0–4.2 V) without external regulators.
How many ADC channels does the R7FA2E2A72DNJ#HA0 provide, and what is their resolution?
The R7FA2E2A72DNJ#HA0 includes a 12-bit successive approximation ADC12 with up to eight selectable analog input channels (AN005, AN006, AN009, AN010, AN019–AN022). Resolution is fixed at 12 bits; effective number of bits (ENOB) is 11.2 bits typical per datasheet AC characteristics. Input range is ratiometric to VREFH0/VREFL0 or internally referenced.
Is the R7FA2E2A72DNJ#HA0 pin-compatible with other RA2E2 group members?
Yes, the R7FA2E2A72DNJ#HA0 is pin-compatible with other 20-pin HWQFN RA2E2 variants (e.g., R7FA2E2A52DNJ#HA0, R7FA2E2A32DNJ#HA0) within the same package code NJ. Pin assignments, power, clock, debug, and peripheral signal mappings are identical; only flash size, ADC channel count, and feature enablement differ - enabling scalable design reuse across performance tiers.
R7FA2E2A72DNJ#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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E2A72DNJ#HA0 FAQ
1.How can I place an order for R7FA2E2A72DNJ#HA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E2A72DNJ#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 R7FA2E2A72DNJ#HA0 reliable?
The price and inventory of R7FA2E2A72DNJ#HA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E2A72DNJ#HA0 is usually 5 days.
3.What payment methods are accepted for R7FA2E2A72DNJ#HA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E2A72DNJ#HA0 transactions.
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R7FA2E2A72DNJ#HA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E2A72DNJ#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 R7FA2E2A72DNJ#HA0?
For technical support, including R7FA2E2A72DNJ#HA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E2A72DNJ#HA0 requirements.
6.How does Aetrix verify that R7FA2E2A72DNJ#HA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E2A72DNJ#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 R7FA2E2A72DNJ#HA0 meets industry standards.
7.What is the process for return or replacement of R7FA2E2A72DNJ#HA0?
All R7FA2E2A72DNJ#HA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E2A72DNJ#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 R7FA2E2A72DNJ#HA0 part is unused and in its original packaging.
Return procedure for R7FA2E2A72DNJ#HA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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