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Renesas R7FA2E1A73CFL#BA0
- Part No.:
- R7FA2E1A73CFL#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R7FA2E1A73CFL#BA0.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
R7FA2E1A73CFL#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, a 12-bit ADC with 10 input channels, and integrated safety features including SRAM parity check, CRC, and Independent Watchdog Timer (IWDT). It targets battery-powered industrial sensors and smart metering endpoints requiring extended runtime and functional safety compliance.
For engineers reviewing the R7FA2E1A73CFL#BA0 datasheet, R7FA2E1A73CFL#BA0 pinout, R7FA2E1A73CFL#BA0 application, or R7FA2E1A73CFL#BA0 equivalent, key selection criteria include its 32-pin LQFP package, -40°C to +105°C operating range, 1.6–5.5 V supply voltage, LIN-capable UART, and hardware-based safety mechanisms such as register write protection and illegal memory access detection.
Technical Context
The R7FA2E1A73CFL#BA0 implements the Armv8-M architecture with TrustZone®-enabled security extensions and supports debug via SW-DP with CoreSight™ MTB-M23 trace. Its clock system integrates five independent sources - HOCO (24/32 MHz), MOCO (4 MHz), LOCO (32.768 kHz), SOSC (32.768 kHz), and MOSC (1–20 MHz) - with programmable trimming for precision timing in variable thermal environments.
Peripheral integration centers on deterministic real-time control: the 8-channel 16-bit Timer Array Unit (TAU) supports PWM generation and input capture, while the 32-bit Interval Timer (TML32) offers flexible counter configurations (8-/16-/32-bit modes). The Serial Array Unit (SAU) provides three simplified SPI, three simplified I²C, and two UART interfaces - one of which supports LIN-bus physical layer signaling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23, 32 MHz max - enables deterministic real-time execution with low interrupt latency for sensor fusion and control loops. |
| Memory | 64-KB code flash + 1-KB data flash + 12-KB SRAM with parity - supports firmware updates, parameter storage, and error-detecting RAM for safety-critical tasks. |
| Analog | 12-bit ADC12 with 10 input channels + on-die temperature sensor - delivers calibrated thermal monitoring and multi-sensor signal acquisition without external components. |
| Safety Features | SRAM parity check, IWDT, CRC calculator (CRC-CCITT/CRC-32), register write protection, illegal memory access detection - meets IEC 61508 SIL2 requirements for embedded control systems. |
| Operating Range | -40°C to +105°C, 1.6–5.5 V supply - ensures reliable operation in harsh industrial environments and wide-input power supplies. |
| Package | 32-pin LQFP (7 mm × 7 mm, 0.8 mm pitch) - compatible with standard reflow processes and accessible for manual prototyping and debugging. |
| Communication | SAU (3× SPI, 3× I²C, 2× UART + 1× LIN), UARTA (1×), IICA (1×) - enables concurrent connectivity to sensors, displays, and automotive-grade bus networks. |
Pinout & Package
Package: 32-pin LQFP (7 mm × 7 mm, 0.8 mm pitch), RoHS-compliant Sn finish, exposed die pad not present in LQFP variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: VCC powers digital/analog logic; VSS is common reference; decoupling required per datasheet layout guidelines. |
| P010 / P011 | VREFH0 / VREFL0 | ADC reference voltage inputs - allow external precision reference or direct connection to VCC/VSS for ratiometric measurements. |
| P212 / P213 / P214 / P215 | X1 / X2 / XCOUT / XCIN | Crystal oscillator interface for sub-clock (32.768 kHz) - enables RTC accuracy and low-power sleep mode timing. |
| P300 / P108 | SWCLK / SWDIO | Serial Wire Debug interface - provides non-intrusive programming, real-time tracing, and breakpoint debugging without dedicated JTAG pins. |
| P206 | RES | Active-low reset input - accepts external reset signals or push-button assertion; internally pulled up during normal operation. |
| P008–P015, P100–P112, etc. | GPIO | 26 configurable I/O pins - include 5-V tolerant (P913/P914), N-ch open-drain (15 pins), pull-up resistors (16), and analog input capability (AN000–AN007, AN021–AN022). |
Key Features
| Feature | Design Value |
|---|---|
| Low-power operation | Multiple low-power modes with sub-μA deep-sleep current - extends battery life in wireless sensor nodes and portable instrumentation. |
| Hardware safety engine | Dedicated CRC unit, SRAM parity checker, and IWDT running on LOCO - ensures fail-safe recovery without CPU intervention during voltage dips or software faults. |
| Flexible clock management | Five independent clock sources with trimming support - eliminates need for external crystals in cost-sensitive designs while maintaining timing accuracy across temperature. |
| Integrated LIN transceiver support | UART2 channel with LIN-bus compliant slew rate and dominant timeout - enables direct connection to automotive body electronics without external transceiver ICs. |
| Event-driven peripheral linking | Event Link Controller (ELC) - allows autonomous peripheral-to-peripheral triggering (e.g., ADC conversion start → DMA transfer), reducing CPU load and interrupt latency. |
Applications
| Industrial Sensor Node | Smart Energy Meter |
|---|---|
Use Scenario: Battery-powered temperature/humidity/pressure sensor collecting data every 30 seconds and transmitting via LoRaWAN. IC Role / Device Role / Timing Role: Main controller executing sensor polling, ADC conversion, data preprocessing, and radio interface management; RTC provides precise wake-up intervals. Use Value: Ultra-low active and sleep currents extend battery life beyond 10 years; integrated 12-bit ADC eliminates external signal conditioning; LIN-capable UART enables future diagnostics over building management bus. | Use Scenario: Residential electricity meter with tamper detection, pulse counting, and secure firmware updates. IC Role / Device Role / Timing Role: System-on-chip managing metrology calculations, EEPROM-backed tariff storage, secure boot, and communication via RS-485 or PLC. Use Value: Flash read protection and register write protection prevent unauthorized firmware modification; CRC and SRAM parity ensure integrity of billing data; 64-KB flash accommodates dual-bank OTA update implementation. |
| Automotive Body Control Module | Medical Wearable Monitor |
Use Scenario: Door lock actuator controller interfacing with LIN slave nodes and reading position sensors. IC Role / Device Role / Timing Role: LIN master node coordinating window lift, mirror adjustment, and interior lighting; TAU generates precise PWM for motor control. Use Value: Built-in LIN-bus UART reduces BOM count and PCB space; IWDT and illegal memory access detection satisfy ISO 26262 ASIL-B requirements; 105°C rating supports under-hood placement. | Use Scenario: ECG patch acquiring biopotential signals, performing real-time QRS detection, and streaming data via BLE. IC Role / Device Role / Timing Role: Signal acquisition hub with ADC oversampling, digital filtering, and secure BLE packet encryption via TRNG-derived keys. Use Value: On-die temperature sensor calibrates ADC offset drift; TRNG enables FIPS-compliant key generation; 1.6 V minimum supply supports single-cell Li-ion operation down to end-of-life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2E1A73CNH#AA0 | Same core, memory, peripherals; 32-pin HWQFN (5 mm × 5 mm, 0.5 mm pitch) instead of LQFP. | Better thermal performance and smaller footprint; requires finer-pitch PCB assembly. | Select for space-constrained industrial modules where reflow compatibility with QFN is established. |
| R7FA2E1A53CFL#BA0 | Identical package and feature set but with 32-KB code flash (vs. 64 KB); same 12-KB SRAM and peripheral complement. | Suitable for simpler firmware stacks with lower memory footprint; no change in I/O count or safety features. | Select when application firmware fits within 32 KB and cost optimization is prioritized over future scalability. |
Compared with R7FA2E1A73CNH#AA0, the R7FA2E1A73CFL#BA0 offers easier hand-soldering and legacy board compatibility via LQFP; compared with R7FA2E1A53CFL#BA0, it provides headroom for field-upgradable features and larger cryptographic libraries without hardware revision.
Availability
R7FA2E1A73CFL#BA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, and automotive body control modules requiring stable component supply, long-term lifecycle assurance, and full traceability.
Supply support for R7FA2E1A73CFL#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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications.
The RA0E1 Group - including the R7FA2E1A73CFL#BA0 - is designed specifically for cost-sensitive, ultra-low-power applications demanding functional safety, robust security, and seamless scalability across Renesas' RA family architecture.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2E1A73CFL#BA0?
The R7FA2E1A73CFL#BA0 features an Arm Cortex-M23 core with a maximum operating frequency of 32 MHz and implements the Armv8-M architecture. It supports TrustZone® security extensions and includes debug capabilities via SW-DP with CoreSight™ MTB-M23 trace. This architecture enables efficient execution of safety-critical firmware while maintaining low power consumption in the R7FA2E1A73CFL#BA0.
Does the R7FA2E1A73CFL#BA0 support LIN-bus communication, and how is it implemented?
Yes, the R7FA2E1A73CFL#BA0 supports LIN-bus communication through UART2, which includes hardware-level LIN-bus compliant slew rate control and dominant timeout functionality. No external transceiver is required for basic LIN master operation. This capability is confirmed in the SAU peripheral specification and applies directly to the R7FA2E1A73CFL#BA0's pin-mapped UART2 channel, enabling integration into automotive body electronics and industrial control networks.
What safety features are integrated into the R7FA2E1A73CFL#BA0, and how do they support functional safety certification?
The R7FA2E1A73CFL#BA0 integrates SRAM parity error checking, Flash area protection, ADC self-diagnosis, Cyclic Redundancy Check (CRC) calculation, Independent Watchdog Timer (IWDT), GPIO readback level detection, register write protection, and illegal memory access detection. These features collectively support IEC 61508 SIL2 compliance by enabling runtime integrity verification, fault containment, and safe state recovery - all verified in the R7FA2E1A73CFL#BA0's safety manual and hardware design documentation.
What are the supported package types and pin counts for the R7FA2E1A73CFL#BA0?
The R7FA2E1A73CFL#BA0 is offered exclusively in the 32-pin LQFP package (7 mm × 7 mm, 0.8 mm pitch), as indicated by the "FJ" suffix in the part numbering scheme. It provides 26 general-purpose I/O pins, 3 dedicated input-only pins, and supports 5-V tolerance on P913 and P914. This package is distinct from other RA0E1 variants like the HWQFN or LSSOP versions and is fully documented in the R7FA2E1A73CFL#BA0 datasheet pin assignment diagrams.
How does the R7FA2E1A73CFL#BA0 handle analog signal acquisition, and what ADC resources are available?
The R7FA2E1A73CFL#BA0 includes a 12-bit successive approximation ADC (ADC12) with up to 10 selectable analog input channels (AN000–AN007, AN021–AN022), internal reference voltage, and on-die temperature sensor output. Conversion results are accessible via DMA or interrupt, and the ADC supports scan mode, window comparison, and self-test functions. These capabilities are fully specified for the R7FA2E1A73CFL#BA0 in the RA0E1 datasheet and enable high-accuracy sensor interfacing without external signal conditioning.
R7FA2E1A73CFL#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-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:
- 37
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2E1A73CFL#BA0 FAQ
1.How can I place an order for R7FA2E1A73CFL#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2E1A73CFL#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 R7FA2E1A73CFL#BA0 reliable?
The price and inventory of R7FA2E1A73CFL#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2E1A73CFL#BA0 is usually 5 days.
3.What payment methods are accepted for R7FA2E1A73CFL#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2E1A73CFL#BA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2E1A73CFL#BA0?
R7FA2E1A73CFL#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2E1A73CFL#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 R7FA2E1A73CFL#BA0?
For technical support, including R7FA2E1A73CFL#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2E1A73CFL#BA0 requirements.
6.How does Aetrix verify that R7FA2E1A73CFL#BA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2E1A73CFL#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 R7FA2E1A73CFL#BA0 meets industry standards.
7.What is the process for return or replacement of R7FA2E1A73CFL#BA0?
All R7FA2E1A73CFL#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2E1A73CFL#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 R7FA2E1A73CFL#BA0 part is unused and in its original packaging.
Return procedure for R7FA2E1A73CFL#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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