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Renesas R7FA6T2BD3CFM#AA1
- Part No.:
- R7FA6T2BD3CFM#AA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R7FA6T2BD3CFM#AA1.pdf
- Description:
- MCU RA6T2 ARM CM33 240MHZ 512K/6
- Quantity:
- Payment:
- Shipping:
Inventory:474
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Product details
Overview
R7FA6T2BD3CFM#AA1 from Renesas is an Arm® Cortex®-M23 microcontroller designed for ultra-low-power industrial and metering applications, featuring a 48 MHz CPU, 512-KB dual-bank flash, 48-KB SRAM with ECC/parity split, 24-bit Sigma-Delta ADC (4-channel), and integrated segment LCD controller driving up to 41 segments × 8 commons. It supports independent power supply RTC, AES-128/256 encryption, and operates from 1.6 V to 5.5 V across –40°C to +105°C.
For engineers reviewing the R7FA6T2BD3CFM#AA1 datasheet, R7FA6T2BD3CFM#AA1 pinout, R7FA6T2BD3CFM#AA1 application, or R7FA6T2BD3CFM#AA1 equivalent, this device delivers verified low-power operation with hardware safety features (IWDT, CAC, CRC, DOC), analog precision for sensor interfacing, and secure firmware update capability via bank-swap flash architecture.
Technical Context
The R7FA6T2BD3CFM#AA1 implements an Armv8-M compliant Cortex-M23 core with 8-region MPU, debug via SW-DP, and deterministic real-time execution enabled by Event Link Controller (ELC) and Data Transfer Controller (DTC). Its dual-bank flash supports seamless firmware updates without runtime interruption.
Analog subsystem integration includes a 24-bit SDADC24 with programmable gain amplifier and configurable clock sources (PLL-multiplied SOSC or HOCO), plus a separate 12-bit ADC12 with temperature sensor input. The SLCDC supports internal boosting, capacitor-split, or resistor-divider bias methods and waveform-A/B selection for flexible LCD drive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 48 MHz, Armv8-M architecture with 8-region MPU and SW-DP debug interface |
| Memory | 512-KB dual-bank code flash (256 KB × 2), 8-KB data flash (100k P/E cycles), 48-KB SRAM (32 KB parity + 16 KB ECC) |
| Analog Converters | 24-bit Sigma-Delta ADC (SDADC24) with 4 differential/single-ended channels; 12-bit ADC12 with 4 inputs + TSN |
| Timing & Safety | Independent RTC (99-year calendar), IWDT with dedicated 15-kHz oscillator, Clock Accuracy Measurement (CAC), CRC/DOC/MACL units |
| Human Interface | Segment LCD Controller (SLCDC) supporting up to 41 seg × 8 com, selectable waveform A/B, and three bias methods |
| Security | AES-128/256 (ECB/CBC/CTR/GCM/CMAC/CCM), TRNG, flash area protection, register write protection |
| Power & Environment | 1.6–5.5 V operating range; –40°C to +105°C; ultra-low-power modes with ELC-triggered peripheral wake-up |
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 power domains: digital (VCC/VSS) and analog (AVCC/AVSS); decoupling required per datasheet layout guidelines |
| XCIN / XCOUT | Sub-clock oscillator interface | Connects 32.768 kHz crystal for RTC and SDADC24 clock source; enables independent RTC power domain (VRTC) |
| ANIP0–ANIP3 / ANIN0–ANIN3 | SDADC24 analog inputs | Four differential channel pairs (±) for high-resolution sensor measurement; supports PGA gain and internal reference |
| SEG0–SEG44 / COM0–COM7 | SLCDC outputs | Configurable for 41-segment × 8-common LCD drive; VL1–VL4 and CAPH/CAPL pins enable multiple bias topologies |
| SWDIO / SWCLK | Debug interface | 2-pin Serial Wire Debug for programming, trace, and real-time debugging without halting CPU operation |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank flash with Bank Swap | Enables zero-downtime firmware updates: one bank executes while the other is reprogrammed, validated, and swapped at runtime |
| 24-bit SDADC24 with PLL clock | Uses 32.768 kHz SOSC multiplied by PLL to achieve precise 7.813/3.906 kHz sampling rates-immune to main clock drift |
| Memory Mirror Function (MMF) | Maps application image load address in flash to fixed link address in 23-bit mirror space-simplifies bootloader development and relocation |
| Event Link Controller (ELC) | Hardware routing of 128+ peripheral events (e.g., timer overflow → ADC trigger → DTC transfer) without CPU intervention or ISR latency |
| Independent Power Supply RTC | Operates from VRTC pin during main power loss; retains calendar, alarm, and correction functions using external backup battery |
| Security peripherals | AES engine supports GCM authenticated encryption for OTA updates; TRNG feeds cryptographic key generation and nonce seeding |
Applications
| Smart Utility Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Battery-powered electricity/water/gas meter with tamper detection, metrology-grade ADC, and LCD display. IC Role / Device Role / Timing Role: Primary system controller executing metrology algorithms, managing LCD refresh, and maintaining time-stamped consumption logs via independent RTC. Use Value: 24-bit SDADC24 provides >110 dB SNR for accurate current/voltage sensing; dual-bank flash enables secure, field-upgradable firmware without service interruption. |
Use Scenario: Wireless condition-monitoring node measuring temperature, pressure, and vibration in factory automation equipment. IC Role / Device Role / Timing Role: Low-power host MCU acquiring analog sensor data, performing edge filtering via MACL, and preparing encrypted payloads for BLE/Wi-Fi transmission. Use Value: Integrated AES and TRNG enable end-to-end payload encryption; AGTW timers support precise timestamping of sensor events with sub-millisecond resolution. |
| Medical Portable Device | Building Automation Panel |
Use Scenario: Handheld diagnostic tool with analog front-end, touchless UI, and long-life battery operation. IC Role / Device Role / Timing Role: Real-time signal processor running FDA-compliant algorithms, driving segmented LCD with blink control, and logging diagnostics to protected flash. Use Value: ECC-protected SRAM and CRC-verified flash ensure data integrity; LVD monitoring on EXLVDVBAT detects battery depletion before critical failure. |
Use Scenario: Wall-mounted HVAC control panel with local display, environmental sensors, and Modbus/RS-485 communication. IC Role / Device Role / Timing Role: Central controller managing I2C sensor reads, SCI-based RS-485 protocol stack, and SLCDC-driven 4-digit LCD with backlight dimming. Use Value: Five SCI modules support simultaneous UART, SPI, I2C, and smart card interfaces; 5-V-tolerant GPIO simplifies level-shifting with legacy building bus transceivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2A2BD3CFM | Same RA2A2 family, identical 64-pin LQFP package, 4-channel SDADC24, but lacks security features (no AES/TRNG) and has reduced I/O count (39 vs 39 - same count but different pin mapping) | Suitable for cost-sensitive metering where cryptographic security is not required; no hardware root-of-trust or secure boot support | Select when security certification (e.g., IEC 62443) is unnecessary and BOM cost reduction is prioritized over firmware integrity guarantees |
| R7FA6M2AF3CFM | RA6M2-series part: Cortex-M33 core, 100 MHz, 1 MB flash, 256 KB RAM, but no SDADC24 or SLCDC; adds Ethernet, USB, and TrustZone | Better for connected gateway applications requiring network stack offload, but requires external LCD driver and sigma-delta ADC | Choose when system demands higher compute throughput, connectivity, or functional safety (IEC 61508 SIL2), and analog/LCD integration is handled externally |
Compared with R7FA6T2BD3CFM#AA1, R7FA2A2BD3CFM offers lower security assurance and no hardware crypto acceleration, while R7FA6M2AF3CFM trades integrated analog/LCD peripherals for enhanced connectivity and processing-requiring additional components to replicate the same sensor-display functionality.
Availability
R7FA6T2BD3CFM#AA1 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, portable medical devices, and building automation panels requiring stable component supply, long-term lifecycle support, and automotive-grade reliability under extended temperature operation.
Supply support for R7FA6T2BD3CFM#AA1 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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and enterprise markets.
The RA2A2 group-including R7FA6T2BD3CFM#AA1-is engineered for ultra-low-power, high-integrity applications in utility metering and industrial sensing, emphasizing analog precision, secure firmware execution, and robust real-time operation in harsh environments.
FAQ
What is the maximum operating frequency and core architecture of the R7FA6T2BD3CFM#AA1?
The R7FA6T2BD3CFM#AA1 features an Arm Cortex-M23 core operating at up to 48 MHz, implementing the Armv8-M architecture with TrustZone for Armv8-M security extensions. It includes an 8-region Memory Protection Unit (MPU), single-cycle integer multiplier, and debug support via Serial Wire Debug (SW-DP). This architecture delivers deterministic real-time performance with hardware-enforced memory isolation for safety-critical firmware.
Does the R7FA6T2BD3CFM#AA1 support secure firmware updates, and how is it implemented?
Yes, the R7FA6T2BD3CFM#AA1 supports secure firmware updates through its dual-bank flash memory (256 KB × 2) and hardware-accelerated AES-128/256 encryption. Updates are validated using CRC and signature checks before bank swap, and the Memory Mirror Function (MMF) ensures consistent execution address mapping. Secure boot leverages flash area protection and register write locks to prevent unauthorized code execution.
What analog peripherals are integrated into the R7FA6T2BD3CFM#AA1, and what are their key specifications?
The R7FA6T2BD3CFM#AA1 integrates two ADCs: a 24-bit Sigma-Delta ADC (SDADC24) with 4 differential/single-ended channels, programmable gain amplifier, and PLL-derived sampling clocks (7.813/3.906 kHz); and a 12-bit successive-approximation ADC (ADC12) with 4 inputs plus on-chip temperature sensor. Both share AVCC/AVSS power domains and support independent reference voltage configuration.
How does the Segment LCD Controller (SLCDC) in the R7FA6T2BD3CFM#AA1 support different display configurations?
The SLCDC in the R7FA6T2BD3CFM#AA1 supports up to 41 segment × 8 common outputs with selectable waveform-A/B timing, internal voltage boosting, capacitor-split, or external resistor-divider bias methods. VL1–VL4 and CAPH/CAPL pins configure drive voltage levels, while COM0–COM7 and SEG0–SEG44 provide direct GPIO-mapped outputs-enabling flexible LCD glass compatibility without external drivers.
What safety and reliability features are built into the R7FA6T2BD3CFM#AA1 for industrial use?
The R7FA6T2BD3CFM#AA1 includes ECC-protected SRAM (16 KB), parity-checked SRAM (32 KB), Flash area protection, Clock Frequency Accuracy Measurement (CAC), Independent Watchdog Timer (IWDT) with dedicated oscillator, CRC and Data Operation Circuit (DOC) for runtime data validation, and illegal memory access detection. These features meet requirements for IEC 61508 functional safety compliance in industrial control systems.
R7FA6T2BD3CFM#AA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RA6T2
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M33
- Core Size:
- 32-Bit
- Speed:
- 240MHz
- Connectivity:
- CANbus, I2C, LINbus, SCI, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 51
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 16K x 8
- RAM Size:
- 64K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 3.6V
- Data Converters:
- A/D 18x12b SAR; D/A 4x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA6T2BD3CFM#AA1 FAQ
1.How can I place an order for R7FA6T2BD3CFM#AA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA6T2BD3CFM#AA1 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 R7FA6T2BD3CFM#AA1 reliable?
The price and inventory of R7FA6T2BD3CFM#AA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA6T2BD3CFM#AA1 is usually 5 days.
3.What payment methods are accepted for R7FA6T2BD3CFM#AA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA6T2BD3CFM#AA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA6T2BD3CFM#AA1?
R7FA6T2BD3CFM#AA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA6T2BD3CFM#AA1 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 R7FA6T2BD3CFM#AA1?
For technical support, including R7FA6T2BD3CFM#AA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA6T2BD3CFM#AA1 requirements.
6.How does Aetrix verify that R7FA6T2BD3CFM#AA1 is sourced from the original manufacturer or authorized distributors?
All R7FA6T2BD3CFM#AA1 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 R7FA6T2BD3CFM#AA1 meets industry standards.
7.What is the process for return or replacement of R7FA6T2BD3CFM#AA1?
All R7FA6T2BD3CFM#AA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA6T2BD3CFM#AA1, 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 R7FA6T2BD3CFM#AA1 part is unused and in its original packaging.
Return procedure for R7FA6T2BD3CFM#AA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA6T2BD3CFM#AA1 Tags
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