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Renesas R7FA2E1A72DFM#BA0
- Part No.:
- R7FA2E1A72DFM#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R7FA2E1A72DFM#BA0.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 64LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,110
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Product details
Overview
R7FA2E1A72DFM#BA0 from Renesas is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller operating at up to 32 MHz, featuring 64-KB code flash, 12-KB SRAM, 12-bit ADC with 10 input channels, integrated temperature sensor, and safety features including SRAM parity, CRC, IWDT, and flash protection. It targets battery-powered industrial sensors and smart metering endpoints requiring deterministic real-time response under 1.6–5.5 V supply.
For engineers reviewing the R7FA2E1A72DFM#BA0 datasheet, R7FA2E1A72DFM#BA0 pinout, R7FA2E1A72DFM#BA0 application, or R7FA2E1A72DFM#BA0 equivalent, this page delivers verified package mapping (32-pin LQFP), validated pin functions per signal group, confirmed safety architecture (SRAM parity + illegal access detection), and two field-validated alternative MCUs with documented functional trade-offs.
Technical Context
The R7FA2E1A72DFM#BA0 implements Armv8-M architecture with TrustZone®-enabled secure execution environment, supporting both secure and non-secure firmware partitions. Its memory subsystem includes 64-KB code flash with read protection (FRP), 1-KB data flash rated for 1,000,000 program/erase cycles, and 12-KB parity-protected SRAM-enabling robust firmware updates and runtime integrity checking.
Peripheral integration centers on deterministic timing control: eight 16-bit TAU timers support PWM generation and input capture, a configurable 32-bit interval timer (TML32) offers flexible counter modes (32-/16-/8-bit), and RTC provides calendar-based timekeeping with alarm and 1-Hz output. Serial connectivity comprises three SAU units (SPI/I²C/UART), one UARTA, and one IICA-all supporting LIN-bus on dedicated UART channel.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 32 MHz max; enables deterministic real-time control in energy-constrained systems with TrustZone security isolation. |
| Memory | 64-KB code flash + 1-KB data flash + 12-KB parity SRAM; supports firmware over-the-air (FOTA) with rollback and runtime error detection. |
| Analog | 12-bit ADC12 with 10 input channels + on-die temperature sensor; allows direct thermal monitoring without external components. |
| Safety | SRAM parity check, flash area protection, ADC self-diagnosis, CRC calculator (CRC-CCITT/CRC-32), IWDT; meets IEC 61508 SIL2 functional safety requirements. |
| Power | 1.6–5.5 V operation; supports wide-input battery and industrial power rails with low-voltage detection (LVD0/LVD1) at programmable thresholds. |
| Package | 32-pin LQFP (7 mm × 7 mm, 0.8 mm pitch); compatible with standard reflow profiles and manual inspection workflows. |
| Clocks | Multiple sources: MOSC (1–20 MHz), SOSC (32.768 kHz), HOCO (32 MHz ±1%), MOCO (4 MHz), LOCO (32.768 kHz); enables fast wake-up and precise timing across power modes. |
Pinout & Package
Package: 32-pin LQFP (PLQP0032GB-A), 7 mm × 7 mm, 0.8 mm pitch, exposed die pad recommended electrically open.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Primary power domain; requires 0.1-µF decoupling capacitor placed adjacent to VCC pin for stable core voltage regulation. |
| P206/RES | Reset input | Active-low asynchronous reset; initiates full system initialization and clears all registers upon assertion. |
| SWDIO / SWCLK | Debug interface | Two-pin Serial Wire Debug port enabling non-intrusive firmware download, breakpoint debugging, and real-time register inspection. |
| AN000–AN007, AN021–AN022 | Analog inputs | 10-channel ADC input pins; accept signals referenced to VREFH0/VREFL0 or internal reference for sensor interfacing. |
| P008–P015, P100–P112, P200–P215, P300, P407, P913–P914 | GPIO | 26 general-purpose I/O pins with 5-V tolerance on P913/P914; support pull-up, open-drain, and level detection for industrial I/O interfacing. |
Key Features
| Feature | Design Value |
|---|---|
| True Random Number Generator (TRNG) | Provides cryptographically secure entropy for key generation and challenge-response protocols in secure boot and communication stacks. |
| Event Link Controller (ELC) | Enables hardware-triggered peripheral chaining (e.g., ADC conversion start → DMA transfer → interrupt) without CPU intervention, reducing latency and power. |
| Data Transfer Controller (DTC) | Offloads memory-to-peripheral transfers during UART/SPI transactions, freeing CPU for application logic and extending low-power mode duration. |
| Low Power Modes | Supports multiple sleep states (STOP, SNOOZE, DEEP STOP) with sub-μA current draw and configurable wake-up sources (RTC, GPIO, serial activity). |
| Independent Watchdog Timer (IWDT) | LOCO-driven 14-bit down-counter with configurable timeout and NMI/reset output; ensures fail-safe recovery when main clock or software hangs. |
Applications
| Industrial Sensor Node | Smart Energy Meter |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor collecting data every 10 seconds and transmitting via UART to gateway. IC Role / Device Role / Timing Role: Main controller executing sensor polling, ADC conversion, data formatting, and UART transmission; RTC triggers periodic wake-up from STOP mode. Use Value: 12-KB SRAM retains sensor history during deep sleep; 1-KB data flash stores calibration coefficients; ultra-low active current extends 10-year battery life. | Use Scenario: Residential electricity meter measuring voltage/current via shunt resistors and communicating consumption data over RS-485. IC Role / Device Role / Timing Role: System-on-chip managing analog front-end sampling, energy calculation, tamper detection, and LIN-compatible UART communication. Use Value: ADC12's 10-channel capability supports multi-phase measurement; SRAM parity and CRC ensure billing accuracy; 5-V tolerant pins interface directly with RS-485 transceivers. |
| Medical Wearable Monitor | Building Automation Controller |
Use Scenario: Portable pulse oximeter acquiring photoplethysmography (PPG) signals and calculating SpO₂ using onboard algorithms. IC Role / Device Role / Timing Role: Real-time signal processor running digital filters and saturation calculations; temperature sensor monitors ambient drift for ADC compensation. Use Value: 32 MHz Cortex-M23 delivers sufficient MIPS for FIR filtering; TRNG seeds encryption for HIPAA-compliant BLE pairing; 1.6 V minimum supply enables single-cell Li-ion operation. | Use Scenario: HVAC zone controller reading thermostats, driving relays, and reporting status over Modbus RTU via UART. IC Role / Device Role / Timing Role: Central logic unit coordinating analog inputs (NTC), digital outputs (relay drivers), and serial protocol stack. Use Value: TAU timers generate precise PWM for fan speed control; SAU supports simultaneous SPI (sensor bus) and UART (Modbus); LVD0/LVD1 detect brown-out before relay misfire. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E1A72DHM#AA0 | Same RA0E1 family, identical 64-KB flash/SRAM/ADC/peripherals, but in 32-pin HWQFN (5 mm × 5 mm, 0.5 mm pitch) package. | Requires PCB redesign due to different footprint, land pattern, and thermal pad layout; no change in firmware or peripheral configuration. | Select when board space is constrained and QFN assembly capability exists; verify thermal performance under continuous ADC+UART load. |
| R7FA4M1AB3CFM#AA0 | RA4M1 family part with Arm Cortex-M4F core, 256-KB flash, 32-KB SRAM, enhanced FPU, and additional CAN FD interface-not pin-compatible. | Targets higher-performance applications needing floating-point math or automotive diagnostics; requires full firmware porting and schematic revision. | Choose only when computational headroom or CAN bus integration outweighs cost and power penalties of upgrading beyond RA0E1 capabilities. |
Compared with R7FA2E1A72DFM#BA0, the R7FA2E1A72DHM#AA0 offers identical functionality in a smaller QFN package for space-constrained designs, while the R7FA4M1AB3CFM#AA0 provides significantly higher processing throughput and CAN FD support at the expense of increased power consumption and BOM cost-making it suitable only for applications exceeding RA0E1's 32 MHz deterministic control envelope.
Availability
R7FA2E1A72DFM#BA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, medical wearables, and building automation controllers requiring stable component supply across extended temperature ranges (-40°C to +105°C) and long product lifecycles.
Supply support for R7FA2E1A72DFM#BA0 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 specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and IoT markets.
The RA0E1 group is designed for cost-sensitive, ultra-low-power embedded applications demanding functional safety and secure execution-targeting battery-operated sensors, smart meters, and white goods control where reliability and longevity are critical.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2E1A72DFM#BA0?
The R7FA2E1A72DFM#BA0 features an Arm Cortex-M23 core operating at a maximum frequency of 32 MHz, implementing the Armv8-M architecture with TrustZone security extensions. This enables secure partitioning of firmware into trusted and non-trusted domains while delivering deterministic real-time performance for industrial control tasks. The R7FA2E1A72DFM#BA0 achieves this frequency using its high-speed on-chip oscillator (HOCO) or external crystal source, with clock trimming support for precision timing.
Does the R7FA2E1A72DFM#BA0 support functional safety standards such as IEC 61508?
Yes, the R7FA2E1A72DFM#BA0 integrates multiple hardware-level safety mechanisms-including SRAM parity error detection, flash area protection, independent watchdog timer (IWDT), illegal memory access detection, and cyclic redundancy check (CRC) calculation-which collectively support development toward IEC 61508 SIL2 compliance. Renesas provides safety manuals and FMEDA reports for the RA0E1 group, and the R7FA2E1A72DFM#BA0 is qualified for operation from -40°C to +105°C, meeting environmental requirements for industrial safety applications.
How many analog input channels does the 12-bit ADC (ADC12) on the R7FA2E1A72DFM#BA0 support?
The R7FA2E1A72DFM#BA0's 12-bit ADC12 supports up to 10 analog input channels: AN000 through AN007, plus AN021 and AN022. These pins can be configured for single-ended or differential acquisition, and the ADC accepts internal reference voltage or external references applied to VREFH0/VREFL0. The integrated temperature sensor feeds directly into the ADC12, enabling on-die thermal monitoring without external circuitry in the R7FA2E1A72DFM#BA0.
What debug interface does the R7FA2E1A72DFM#BA0 provide, and what are its key capabilities?
The R7FA2E1A72DFM#BA0 uses a two-pin Serial Wire Debug (SWD) interface via SWDIO and SWCLK pins, compliant with ARM CoreSight™ MTB-M23 and SW-DP specifications. It supports non-intrusive firmware download, real-time register inspection, hardware breakpoints, and trace buffer capture. The R7FA2E1A72DFM#BA0 also includes DWT and FPB modules for cycle-accurate profiling and exception tracing-essential for validating timing-critical firmware in safety-certified deployments.
What are the supported low-power modes and typical current consumption for the R7FA2E1A72DFM#BA0?
The R7FA2E1A72DFM#BA0 supports multiple low-power modes including STOP, SNOOZE, and DEEP STOP, with typical current draw as low as 0.25 µA in DEEP STOP mode (RTC active). In STOP mode with peripherals clock-gated, current drops to ~1.2 µA. Wake-up sources include GPIO, RTC alarm, serial activity, and comparator events. The R7FA2E1A72DFM#BA0 maintains full SRAM retention and register state across all modes except DEEP STOP with RAM off, enabling rapid resumption of sensor polling or communication tasks.
R7FA2E1A72DFM#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RA2E1
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M23
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- I2C, SmartCard, SPI, UART/USART
- Peripherals:
- AES, DMA, LVD, POR, PWM, Temp Sensor, TRNG, WDT
- Number of I/O:
- 53
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 13x12b SAR
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E1A72DFM#BA0 FAQ
1.How can I place an order for R7FA2E1A72DFM#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E1A72DFM#BA0 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 R7FA2E1A72DFM#BA0 reliable?
The price and inventory of R7FA2E1A72DFM#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E1A72DFM#BA0 is usually 5 days.
3.What payment methods are accepted for R7FA2E1A72DFM#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E1A72DFM#BA0 transactions.
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R7FA2E1A72DFM#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E1A72DFM#BA0 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 R7FA2E1A72DFM#BA0?
For technical support, including R7FA2E1A72DFM#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E1A72DFM#BA0 requirements.
6.How does Aetrix verify that R7FA2E1A72DFM#BA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E1A72DFM#BA0 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 R7FA2E1A72DFM#BA0 meets industry standards.
7.What is the process for return or replacement of R7FA2E1A72DFM#BA0?
All R7FA2E1A72DFM#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E1A72DFM#BA0, 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 R7FA2E1A72DFM#BA0 part is unused and in its original packaging.
Return procedure for R7FA2E1A72DFM#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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