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Renesas R7FA2A2BD3CFM#BA1
- Part No.:
- R7FA2A2BD3CFM#BA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R7FA2A2BD3CFM#BA1.pdf
- Description:
- MCU:RA
- Quantity:
- Payment:
- Shipping:
Inventory:4,041
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Product details
Overview
R7FA2A2BD3CFM#BA1 from Renesas is an Arm® Cortex®-M23 microcontroller targeting ultra-low-power industrial HMI and metering applications, featuring a 48 MHz CPU, 512-KB dual-bank flash, 48-KB SRAM with ECC/parity split, 4-channel 24-bit sigma-delta ADC (SDADC24), and integrated segment LCD controller supporting up to 21 seg × 4 com or 17 seg × 8 com drive.
For engineers reviewing the R7FA2A2BD3CFM#BA1 datasheet, R7FA2A2BD3CFM#BA1 pinout, R7FA2A2BD3CFM#BA1 application, or R7FA2A2BD3CFM#BA1 equivalent, this device delivers deterministic real-time control with independent power supply RTC, AES-128/256 encryption, safety features including CAC, CRC, DOC, and IWDT, and flexible clocking via HOCO/MOCO/LOCO/SOSC/MOSC with PLL for SDADC24.
Technical Context
The R7FA2A2BD3CFM#BA1 implements Armv8-M architecture with Memory Protection Unit (8 regions) and CoreSight™ MTB-M23 trace, enabling secure, debuggable embedded firmware. Its dual-bank flash supports Bank Swap for seamless firmware updates without runtime interruption.
Analog subsystem integration includes two independent A/D converters: a 12-bit SAR ADC (ADC12) with 4 input channels and temperature sensor interface, plus a 24-bit sigma-delta converter (SDADC24) with programmable gain amplifier, differential/single-ended inputs, and dedicated PLL clocking - both sharing AVCC/AVSS/AVCM/AREGC/AVRT analog supply rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 48 MHz max; supports TrustZone security extensions and MPU for memory isolation. |
| Memory | 512-KB code flash (2×256 KB banks), 8-KB data flash (100k P/E cycles), 48-KB SRAM (32 KB parity + 16 KB ECC). |
| Analog Converters | ADC12: 12-bit SAR, 4 ch; SDADC24: 24-bit sigma-delta, 4 differential/single-ended ch, 7.813 kHz max sampling. |
| Timers | GPT16 × 5, AGT × 8 (16-bit), AGTW × 2 (32-bit), WDT/IWDT, RTC with calendar mode (2000–2099). |
| Connectivity | SCI × 4 (UART/IIC/SPI/smart card), IIC × 1, SPI × 1, ELC, DTC, SWD debug interface. |
| HMI & Power | SLCDC: 21 seg × 4 com or 17 seg × 8 com; VCC = 1.6–5.5 V; Ta = −40°C to +105°C; 64-pin LQFP package. |
Pinout & Package
Package: 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant, Pb-free terminal finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual-domain digital supply; decoupling required per datasheet layout guidelines. |
| AVCC / AVSS / AVCM / AREGC / AVRT | Analog reference & bias network | Isolated analog rail for SDADC24 precision; AVRT provides internal reference voltage output. |
| ANIP0–ANIP3 / ANIN0–ANIN3 | Differential analog inputs | 4-channel SDADC24 input pairs; support single-ended mode by tying IN− to AVCM. |
| SEG0–SEG20 / COM0–COM3 | LCD segment/common drivers | Supports 21-segment × 4-common or 17-segment × 8-common LCD drive with selectable waveform A/B. |
| P001–P015, P100–P115, etc. | General-purpose I/O | 39 total GPIOs; includes 3 input-only, 1 output-only, 5-V tolerant on 2 pins, N-ch open-drain on 32 pins. |
Key Features
| Feature | Design Value |
|---|---|
| Bank Swap Flash | Enables atomic firmware updates with zero downtime via dual-bank 256 KB code flash. |
| Independent Power RTC | RTC powered by VRTC pin; retains calendar/time across main power loss with battery backup support. |
| SDADC24 Clocking | Dedicated PLL multiplies 32.768 kHz SOSC to 12.0/12.8 MHz for high-precision sigma-delta conversion. |
| Security Acceleration | Hardware AES engine (ECB/CBC/CTR/GCM/CMAC/CCM) + TRNG for cryptographic key generation. |
| Safety Monitoring | Clock Frequency Accuracy Measurement (CAC), CRC, DOC, IWDT, and SRAM ECC/parity error detection. |
Applications
| Smart Energy Metering | Industrial Panel Meters |
|---|---|
Use Scenario: High-accuracy AC/DC energy measurement in DIN-rail mounted utility meters with tamper detection. IC Role / Device Role / Timing Role: Primary system MCU executing metrology algorithms, managing SDADC24 oversampling, and driving segmented LCD display. Use Value: 24-bit SDADC24 enables >100 dB dynamic range for current/voltage sensing; independent RTC ensures billing timestamp integrity during mains failure. | Use Scenario: Local HMI in factory automation panels requiring low-power operation and long-life battery-backed display. IC Role / Device Role / Timing Role: Standalone controller handling sensor readout, local UI rendering, and non-volatile parameter storage. Use Value: Integrated SLCDC drives 21-segment × 4-common LCD without external driver IC; ultra-low-power modes extend battery life beyond 5 years. |
| Medical Diagnostic Devices | Building Automation Sensors |
Use Scenario: Portable blood glucose or ECG monitors needing precise analog front-end and secure data logging. IC Role / Device Role / Timing Role: Signal acquisition MCU with ADC12 for fast diagnostics and SDADC24 for high-resolution biosignal capture. Use Value: Dual ADC architecture allows simultaneous fast sampling (ADC12) and high-resolution filtering (SDADC24); AES encryption secures patient data at rest. | Use Scenario: Wireless HVAC sensors monitoring temperature/humidity with local display and tamper-proof calibration. IC Role / Device Role / Timing Role: Sensor fusion node integrating TSN, SDADC24, and RTC for time-stamped environmental logging. Use Value: On-chip temperature sensor (TSN) calibrated against SDADC24 reference enables ±0.5°C accuracy; LVD_VRTC detects backup battery depletion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2A2AD3CFM#BA1 | 7-channel SDADC24, 100-pin LQFP, 67 GPIOs, 39 seg × 4 com LCD drive | Higher channel count for multi-sensor systems; larger package limits space-constrained designs | Select when full 7-channel SDADC24 capability and expanded I/O are required. |
| R7FA2A2BD3CFN#AA0 | 4-channel SDADC24, 80-pin LQFP, 55 GPIOs, 35 seg × 8 com LCD drive | More segment drive capability for complex displays; intermediate pin count between 64- and 100-pin variants | Choose for balanced I/O count and enhanced LCD drive (35 seg × 8 com) in mid-size enclosures. |
Compared with R7FA2A2BD3CFM#BA1, the R7FA2A2AD3CFM#BA1 offers higher SDADC24 channel density and more GPIOs but requires larger PCB area, while the R7FA2A2BD3CFN#AA0 provides greater LCD segment flexibility at the cost of reduced general-purpose I/O count.
Availability
R7FA2A2BD3CFM#BA1 is available at Aetrix Electronics and suitable for smart metering, industrial HMI, medical diagnostics, building automation, and portable instrumentation requiring stable component supply, long-term lifecycle support, and automotive-grade temperature resilience.
Supply support for R7FA2A2BD3CFM#BA1 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 markets.
The RA2A2 group targets cost-sensitive, ultra-low-power applications demanding high analog precision, secure firmware execution, and human-machine interface integration - exemplified by the R7FA2A2BD3CFM#BA1's SDADC24, SLCDC, and TrustZone-enabled Cortex-M23 core.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2A2BD3CFM#BA1?
The R7FA2A2BD3CFM#BA1 features an Arm Cortex-M23 core operating at up to 48 MHz, implementing the Armv8-M architecture with TrustZone security extensions and an 8-region Memory Protection Unit (MPU). This architecture enables secure, isolated execution environments for firmware partitioning and safety-critical tasks within the R7FA2A2BD3CFM#BA1.
Does the R7FA2A2BD3CFM#BA1 support hardware-accelerated cryptography?
Yes, the R7FA2A2BD3CFM#BA1 integrates a dedicated AES engine supporting ECB, CBC, CTR, GCM, CMAC, and CCM cipher modes with 128- and 256-bit key lengths, plus a True Random Number Generator (TRNG) for cryptographically secure key derivation - all implemented in hardware to offload the CPU and ensure deterministic timing in the R7FA2A2BD3CFM#BA1.
How many analog-to-digital converter channels does the R7FA2A2BD3CFM#BA1 include, and what types are they?
The R7FA2A2BD3CFM#BA1 includes two independent ADC subsystems: a 12-bit successive approximation (ADC12) with 4 input channels, and a 24-bit sigma-delta converter (SDADC24) with 4 differential or single-ended channels. Both share dedicated analog supply pins (AVCC/AVSS/AVCM/AREGC/AVRT) to maintain signal integrity in the R7FA2A2BD3CFM#BA1.
What LCD drive capability does the R7FA2A2BD3CFM#BA1 provide, and how is it configured?
The R7FA2A2BD3CFM#BA1 integrates a Segment LCD Controller (SLCDC) supporting either 21 segments × 4 commons or 17 segments × 8 commons, with selectable drive waveforms (A or B) and three bias methods (internal boost, capacitor split, external resistor division). Configuration is done via register settings in the R7FA2A2BD3CFM#BA1, enabling flexible display integration without external driver ICs.
What safety and reliability features are built into the R7FA2A2BD3CFM#BA1 for industrial use?
The R7FA2A2BD3CFM#BA1 includes Clock Frequency Accuracy Measurement (CAC), Cyclic Redundancy Check (CRC), Data Operation Circuit (DOC), Independent Watchdog Timer (IWDT), SRAM ECC/parity, flash area protection, and ADC self-diagnosis - all designed to meet IEC 61508 SIL-2 readiness requirements. These features ensure robust operation under voltage fluctuation, clock fault, or memory corruption in the R7FA2A2BD3CFM#BA1.
R7FA2A2BD3CFM#BA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RA2A2
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M23
- Core Size:
- 32-Bit
- Speed:
- 48MHz
- Connectivity:
- I2C, SCI, SPI, UART/USART
- Peripherals:
- DMA, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 39
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 48K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 1x12b SAR, 4x24b Sigma-Delta
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2A2BD3CFM#BA1 FAQ
1.How can I place an order for R7FA2A2BD3CFM#BA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2A2BD3CFM#BA1 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 R7FA2A2BD3CFM#BA1 reliable?
The price and inventory of R7FA2A2BD3CFM#BA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2A2BD3CFM#BA1 is usually 5 days.
3.What payment methods are accepted for R7FA2A2BD3CFM#BA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2A2BD3CFM#BA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2A2BD3CFM#BA1?
R7FA2A2BD3CFM#BA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2A2BD3CFM#BA1 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 R7FA2A2BD3CFM#BA1?
For technical support, including R7FA2A2BD3CFM#BA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2A2BD3CFM#BA1 requirements.
6.How does Aetrix verify that R7FA2A2BD3CFM#BA1 is sourced from the original manufacturer or authorized distributors?
All R7FA2A2BD3CFM#BA1 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 R7FA2A2BD3CFM#BA1 meets industry standards.
7.What is the process for return or replacement of R7FA2A2BD3CFM#BA1?
All R7FA2A2BD3CFM#BA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2A2BD3CFM#BA1, 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 R7FA2A2BD3CFM#BA1 part is unused and in its original packaging.
Return procedure for R7FA2A2BD3CFM#BA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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