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Renesas R7FA2A2BD3CFP#HA1
- Part No.:
- R7FA2A2BD3CFP#HA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R7FA2A2BD3CFP#HA1.pdf
- Description:
- MCU RA2A2 ARM CM23 48MHZ 512K/48
- Quantity:
- Payment:
- Shipping:
Inventory:2,762
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Product details
Overview
R7FA2A2BD3CFP#HA1 from Renesas is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller operating at up to 48 MHz, featuring 512-KB dual-bank flash, 48-KB SRAM with ECC/parity split, 4-channel 24-bit Sigma-Delta ADC (SDADC24), 12-bit ADC (ADC12), and integrated segment LCD controller for battery-powered industrial HMI applications.
For engineers reviewing the R7FA2A2BD3CFP#HA1 datasheet, R7FA2A2BD3CFP#HA1 pinout, R7FA2A2BD3CFP#HA1 application, or R7FA2A2BD3CFP#HA1 equivalent, this device delivers certified functional safety support (IEC 61508 SIL2-ready peripherals), hardware AES-128/256 encryption, independent power-supply RTC, and low-voltage detection across VCC/VRTC/EXLVDVBAT rails - critical for medical sensors, smart meters, and portable instrumentation.
Technical Context
The R7FA2A2BD3CFP#HA1 implements Armv8-M architecture with Memory Protection Unit (8 regions) and CoreSight™ MTB-M23 trace, enabling secure, deterministic real-time execution in constrained environments. Its dual-bank flash supports Bank Swap for zero-downtime firmware updates, while the SDADC24 uses PLL-multiplied 32.768 kHz SOSC clock to achieve 7.813 kHz sampling with differential input on ANIP0–ANIP3/ANIN0–ANIN3.
System-level integration includes Event Link Controller (ELC) for CPU-free peripheral triggering, Data Transfer Controller (DTC) for autonomous memory moves, and 8× AGT + 2× AGTW timers for precise low-power event timing. The SLCDC drives up to 45 segments × 4 commons or 41 segments × 8 commons using internal voltage boosting or capacitor-split methods - configurable per application layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 48 MHz max; supports TrustZone for secure partitioning of code/data |
| Memory | 512-KB dual-bank flash (256 KB × 2) with Bank Swap; 48-KB SRAM (32 KB parity + 16 KB ECC) |
| Analog Peripherals | 4-channel 24-bit SDADC24 (differential inputs ANIP0–ANIP3/ANIN0–ANIN3); 4-channel 12-bit ADC12 |
| Timers | 6× GPT16 (PWM/BLDC control), 8× AGT16, 2× AGTW32, WDT + IWDT with dedicated 15-kHz oscillator |
| Communication | 5× SCI (UART/SPI/IIC/smart card), 2× IIC, 1× SPI, all with FIFO and independent baud rate generation |
| HMI Interface | Segment LCD controller (SLCDC): 45 seg × 4 com or 41 seg × 8 com; VL1/VL2 reference selection |
| Security & Safety | AES-128/256 (ECB/CBC/CTR/GCM/CMAC/CCM), TRNG, CAC, CRC, DOC, POEG, register write protection |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, Pb-free terminal finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual 1.6–5.5 V main supply; decoupling required per datasheet layout guidelines |
| XCIN / XCOUT | Sub-clock oscillator interface | 32.768 kHz crystal connection for RTC and SDADC24 PLL reference |
| ANIP0–ANIP3, ANIN0–ANIN3 | SDADC24 analog inputs | 4 differential channels (±) supporting programmable gain; used for precision sensor signal acquisition |
| SEG0–SEG44, COM0–COM7 | SLCDC outputs | Configurable segment/common drive for multiplexed LCDs; supports blink, waveform A/B, and voltage-boost modes |
| SWDIO / SWCLK | Debug interface | 2-pin Serial Wire Debug for programming and real-time trace via CoreSight MTB-M23 |
Key Features
| Feature | Design Value |
|---|---|
| Bank Swap Flash | Enables seamless firmware update without system reset or external memory - critical for field-deployed devices |
| SDADC24 with PLL Clock | Uses 32.768 kHz SOSC × PLL to generate stable high-resolution conversion clock, eliminating need for external crystal |
| Independent Power RTC | VRTC pin allows backup power source (e.g., coin cell) to maintain calendar, alarm, and correction functions during main power loss |
| ELC + DTC Co-processing | Permits autonomous peripheral chaining (e.g., timer-triggered ADC → DMA → memory store) without CPU intervention |
| Hardware AES Engine | Offloads cryptographic operations from CPU; supports GCM mode for authenticated encryption in secure boot or OTA updates |
Applications
| Industrial Smart Sensors | Portable Medical Instruments |
|---|---|
Use Scenario: Battery-powered pressure/temperature sensor node with local display and BLE gateway interface. IC Role / Device Role / Timing Role: Main controller executing sensor fusion, driving 4-segment LCD, managing low-power sleep/wake cycles via AGT timers. Use Value: SDADC24 achieves 110 dB SNR for microvolt-level transducer signals; independent RTC maintains timestamp accuracy across power cycles. |
Use Scenario: Handheld blood glucose meter with touchless IR interface and segmented LCD readout. IC Role / Device Role / Timing Role: System-on-chip handling analog front-end (ADC12 + SDADC24), LCD driver, USB CDC communication, and AES-encrypted data logging. Use Value: Dual ADC architecture enables simultaneous fast 12-bit strip reading and high-precision 24-bit calibration; 5-V-tolerant I/O simplifies interface to external level-shifting logic. |
| Smart Energy Meters | Building Automation Controllers |
Use Scenario: DIN-rail mounted electricity meter with tamper detection, LCD display, and RS-485 communication. IC Role / Device Role / Timing Role: Primary MCU performing metrology calculations, driving 45-segment LCD, managing isolated UART via SCI, and enforcing security policies. Use Value: Hardware CRC and DOC detect memory corruption or malicious firmware injection; LVD_VRTC ensures RTC integrity during brown-out events. |
Use Scenario: HVAC zone controller with temperature/humidity sensing, LCD status display, and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Real-time coordinator for sensor polling (TSN + ADC12), actuator PWM (GPT16), and LCD refresh (SLCDC) with synchronized timing. Use Value: ELC links AGT timer overflow to SDADC24 trigger, enabling jitter-free periodic sampling; 48-KB SRAM accommodates multiple protocol stacks and UI buffers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2A2AD3CFP | 7-channel SDADC24 vs. 4-channel; identical package, flash, SRAM, and peripherals otherwise | Required for multi-sensor systems needing >4 differential analog inputs (e.g., 3-phase current/voltage monitoring) | Select when higher analog channel count is mandatory; no PCB change needed |
| R7FA2E1A93CFM | 64-pin LQFP, 256-KB flash, 32-KB SRAM, no SDADC24, but adds CAN FD controller | Suitable for automotive body electronics or industrial CAN networks where analog resolution is secondary to bus connectivity | Choose for CAN-based control nodes; requires PCB redesign due to smaller package and different pinout |
Compared with R7FA2A2AD3CFP, the R7FA2A2BD3CFP#HA1 reduces SDADC24 channel count to optimize cost and power for single-sensor applications, while retaining full security, RTC, and LCD capabilities; versus R7FA2E1A93CFM, it trades CAN FD for higher-resolution analog acquisition and larger memory - making it ideal for precision measurement over networked control.
Availability
R7FA2A2BD3CFP#HA1 is available at Aetrix Electronics and suitable for industrial smart sensors, portable medical instruments, and smart energy meters requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R7FA2A2BD3CFP#HA1 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, and power solutions for industrial, automotive, and IoT markets.
The RA2A2 group targets ultra-low-power, functionally safe, and secure general-purpose MCUs - designed specifically for battery-operated HMI, sensor fusion, and metering applications demanding high analog precision and long-term reliability.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2A2BD3CFP#HA1?
The R7FA2A2BD3CFP#HA1 features an Arm Cortex-M23 core compliant with Armv8-M architecture and operates at a maximum frequency of 48 MHz. It includes an 8-region Memory Protection Unit (MPU), single-cycle integer multiplier, and CoreSight™ MTB-M23 trace capability - enabling deterministic real-time performance with memory isolation for safety-critical tasks. This architecture underpins the R7FA2A2BD3CFP#HA1's suitability for IEC 61508 SIL2-aligned designs.
How many analog input channels does the R7FA2A2BD3CFP#HA1 support, and what types of converters are included?
The R7FA2A2BD3CFP#HA1 integrates two independent analog subsystems: a 4-channel 24-bit Sigma-Delta ADC (SDADC24) with differential inputs ANIP0–ANIP3/ANIN0–ANIN3, and a 4-channel 12-bit successive-approximation ADC (ADC12). The SDADC24 supports programmable gain and uses a PLL-multiplied 32.768 kHz clock for high-precision sensor measurements, while the ADC12 provides faster sampling for auxiliary signals like temperature or reference voltages - both accessible within the R7FA2A2BD3CFP#HA1's unified peripheral framework.
Does the R7FA2A2BD3CFP#HA1 include hardware security features, and which standards do they support?
Yes, the R7FA2A2BD3CFP#HA1 includes AES-128/256 hardware acceleration supporting ECB, CBC, CTR, GCM, CMAC, and CCM cipher modes, plus a True Random Number Generator (TRNG). These features align with NIST SP 800-90A/B/C and enable secure boot, encrypted firmware updates, and data-at-rest protection. The R7FA2A2BD3CFP#HA1 also implements register write protection, memory ECC/parity, and Cyclic Redundancy Check (CRC) - collectively supporting design compliance with IEC 62443-3-3 and ISO/SAE 21434 cybersecurity requirements.
What LCD driving capability does the R7FA2A2BD3CFP#HA1 provide, and how is it configured?
The R7FA2A2BD3CFP#HA1 includes a Segment LCD Controller/Driver (SLCDC) supporting up to 45 segments × 4 commons or 41 segments × 8 commons. Configuration options include internal voltage boosting, capacitor-split, or external resistor-divider bias methods, with selectable VL1/VL2 reference modes. Waveform A or B can be chosen for optimal contrast and power efficiency. This flexibility allows the R7FA2A2BD3CFP#HA1 to drive diverse LCD modules - from simple 4-digit displays to multi-segment industrial status panels - without external driver ICs.
What low-power modes and voltage monitoring features are available on the R7FA2A2BD3CFP#HA1?
The R7FA2A2BD3CFP#HA1 supports multiple low-power modes including Sleep, Deep Sleep, and Software Standby, with wake-up via AGT timers, RTC alarms, or external interrupts. Voltage monitoring includes six independent Low Voltage Detectors (LVD0–LVD2, LVD_VBAT, LVD_VRTC, EXLVD) configurable across 1–7 thresholds. For example, LVD_VRTC monitors the independent RTC supply rail (VRTC) with four selectable levels, ensuring calendar integrity during backup power transitions - a key requirement for the R7FA2A2BD3CFP#HA1 in energy metering and medical logging applications.
R7FA2A2BD3CFP#HA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- Series:
- RA2A2
- Packaging:
- Tape & Reel (TR)
- 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:
- 73
- 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:
R7FA2A2BD3CFP#HA1 FAQ
1.How can I place an order for R7FA2A2BD3CFP#HA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2A2BD3CFP#HA1 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 R7FA2A2BD3CFP#HA1 reliable?
The price and inventory of R7FA2A2BD3CFP#HA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2A2BD3CFP#HA1 is usually 5 days.
3.What payment methods are accepted for R7FA2A2BD3CFP#HA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2A2BD3CFP#HA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2A2BD3CFP#HA1?
R7FA2A2BD3CFP#HA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2A2BD3CFP#HA1 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 R7FA2A2BD3CFP#HA1?
For technical support, including R7FA2A2BD3CFP#HA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2A2BD3CFP#HA1 requirements.
6.How does Aetrix verify that R7FA2A2BD3CFP#HA1 is sourced from the original manufacturer or authorized distributors?
All R7FA2A2BD3CFP#HA1 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 R7FA2A2BD3CFP#HA1 meets industry standards.
7.What is the process for return or replacement of R7FA2A2BD3CFP#HA1?
All R7FA2A2BD3CFP#HA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2A2BD3CFP#HA1, 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 R7FA2A2BD3CFP#HA1 part is unused and in its original packaging.
Return procedure for R7FA2A2BD3CFP#HA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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