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Renesas R7FA6T2AD3CNB#AA1
- Part No.:
- R7FA6T2AD3CNB#AA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-WFQFN Exposed Pad
- Datasheet:
-
R7FA6T2AD3CNB#AA1.pdf
- Description:
- MCU RA6T2 ARM CM33 240MHZ 512K/6
- Quantity:
- Payment:
- Shipping:
Inventory:300
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Product details
Overview
R7FA6T2AD3CNB#AA1 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 memory, 48-KB SRAM with ECC/parity support, a 24-bit Sigma-Delta ADC (7-channel differential), 12-bit SAR ADC (4-channel), and integrated segment LCD controller/driver for battery-powered HMI applications.
For engineers reviewing the R7FA6T2AD3CNB#AA1 datasheet, R7FA6T2AD3CNB#AA1 pinout, R7FA6T2AD3CNB#AA1 application, or R7FA6T2AD3CNB#AA1 equivalent, this MCU delivers certified functional safety (IEC 61508 SIL2-ready), hardware AES-128/256 encryption, independent power-supply RTC, and low-voltage detection across VCC, VRTC, and EXLVDVBAT rails - critical for medical, industrial sensing, and portable instrumentation designs requiring long-term reliability and secure firmware updates.
Technical Context
The R7FA6T2AD3CNB#AA1 implements Armv8-M architecture with Memory Protection Unit (8 regions) and CoreSight™ MTB-M23 trace, enabling deterministic real-time execution in safety-critical contexts. Its dual-bank flash supports Bank Swap for seamless firmware updates without runtime interruption.
It integrates two asynchronous timer families - AGT (16-bit × 8) and AGTW (32-bit × 2) - both operable from sub-clock oscillator (32.768 kHz), enabling precise low-power timing while retaining full functionality during deep-sleep modes. The SDADC24 uses PLL-multiplied clock derived from SOSC for high-precision sigma-delta conversion at 3.906–7.813 kHz sampling rates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 48 MHz max; supports Armv8-M 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); 8-KB data flash (100k P/E cycles). |
| Analog Peripherals | 24-bit SDADC24 (7-ch differential input, 3.906/7.813 kHz sampling); 12-bit ADC12 (4-ch, internal ref/temp sensor); on-chip TSN. |
| Human Interface | Segment LCD Controller (SLCDC) supporting up to 45 seg × 4 com or 41 seg × 8 com; internal boost/cap-split/resistor-divider drive methods. |
| Security & Safety | AES-128/256 (ECB/CBC/CTR/GCM/CMAC/CCM); TRNG; CAC, CRC, DOC, IWDT, SRAM ECC/parity, flash protection, illegal access detection. |
| Power & Clock | VCC range: 1.6–5.5 V; operating temp: −40°C to +105°C; clocks include MOSC (1–20 MHz), SOSC (32.768 kHz), HOCO (24/32/48/64 MHz), PLL for SDADC24. |
| I/O & Packaging | 77 general-purpose I/O pins (67 I/O + 3 input-only + 1 output-only); 5-V tolerant on 3 pins; 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch). |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, Pb-free terminal material.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Core power supply / ground | Dual VCC pins ensure stable core voltage delivery; decoupling required per datasheet layout guidelines (0.1 µF near each VCC). |
| AVCC / AVSS / AVCM / AVRT | Analog domain supply & reference | Isolated analog rail enables high-precision SDADC24 operation; AVCM sets common-mode voltage; AVRT provides dedicated SDADC reference. |
| ANIP0–ANIP6 / ANIN0–ANIN6 | SDADC24 differential inputs | 7 fully differential input pairs support ratiometric or absolute measurements; programmable gain amplifier front-end improves SNR for low-level signals. |
| SEG0–SEG44 / COM0–COM7 | SLCDC segment/common outputs | Configurable for 4- or 8-common LCD panels; waveform A/B selection enables optimized contrast and flicker suppression. |
| XCIN / XCOUT / VRTC | Independent RTC power & oscillator | Enables calendar RTC operation during main power loss; VRTC pin accepts backup battery; SOSC remains active for timekeeping. |
Key Features
| Feature | Design Value |
|---|---|
| Bank Swap Flash | Enables zero-downtime firmware updates by switching between two 256-KB banks via software control - essential for field-deployed medical devices. |
| SDADC24 with PGA | 24-bit resolution with integrated programmable gain amplifier allows direct interface to microvolt-level sensor outputs (e.g., load cells, thermopiles) without external signal conditioning. |
| Independent Power RTC | Calendar mode (2000–2099) with alarm, correction, and 1-Hz/64-Hz output; operates from VRTC backup supply - maintains time across main power failures. |
| Hardware AES Engine | Full AES-128/256 acceleration with GCM/CCM modes offloads crypto processing from CPU, reducing latency and power for secure OTA updates and data logging. |
| ELC + DTC Integration | Event Link Controller triggers peripherals (e.g., SDADC start) directly from timers or GPIO without CPU intervention; DTC handles result transfers to SRAM autonomously. |
Applications
| Portable Medical Instrumentation | Industrial Sensor Node |
|---|---|
|
Use Scenario: Battery-powered blood glucose meter with LCD display, temperature compensation, and encrypted log storage. IC Role / Device Role / Timing Role: Main system controller executing FDA-compliant algorithms, driving 4-segment LCD, acquiring analog sensor data via SDADC24, and managing secure flash writes. Use Value: Dual-bank flash enables safe firmware patching; SDADC24's 24-bit resolution captures minute glucose concentration changes; independent RTC timestamps readings even during battery swaps. |
Use Scenario: Wireless pressure/temperature node in hazardous area with 10-year battery life and SIL2 compliance. IC Role / Device Role / Timing Role: Low-power sensor hub performing periodic SDADC24 acquisition, CRC-verified data packaging, and AES-encrypted transmission via SCI UART. Use Value: AGT/AGTW timers enable sub-µA sleep between samples; CAC validates clock accuracy for time-stamped diagnostics; ECC SRAM prevents silent data corruption in long-term deployments. |
| Smart Utility Meter Display | Home Appliance Control Panel |
|
Use Scenario: Electromechanical utility meter with segmented LCD showing kWh, tariff, and tamper alerts. IC Role / Device Role / Timing Role: Dedicated HMI controller managing LCD refresh, RTC calendar, button debounce, and tamper-detection interrupts via IRQ0–IRQ11. Use Value: SLCDC drives 45-segment LCD without external drivers; VRTC-backed RTC ensures accurate billing intervals; 5-V tolerant pins simplify interface with legacy metering ICs. |
Use Scenario: Oven control panel with touchless buttons, temperature monitoring, and animated LCD status indicators. IC Role / Device Role / Timing Role: Real-time UI processor handling capacitive sensing (via AGT), thermal feedback (TSN + ADC12), PWM fan control (GPT16), and LCD blinking animation. Use Value: GPT16 channels generate synchronized PWM for motor/fan control; SLCDC waveform-A mode reduces LCD flicker; on-chip TSN eliminates external temperature sensor BOM cost. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2A2AD3CFP | Same RA2A2 family, identical 100-pin LQFP package, same 512-KB flash/SRAM/SDADC24 specs, but lacks security features (no AES/TRNG) and has reduced safety peripherals (no CAC, DOC, or register write protection). | Suitable for cost-sensitive non-security applications like basic industrial displays where cryptographic functions and functional safety certification are not required. | Select R7FA2A2AD3CFP only if AES, TRNG, and IEC 61508 SIL2 readiness are unnecessary - avoids paying for unused security IP. |
| R7FA6M2AF3CFP | RA6M2-series part with Cortex-M33 core, higher performance (100 MHz), larger memory (2 MB flash/640 KB SRAM), but no SDADC24 or SLCDC; includes Ethernet and USB FS. | Targeted at networked gateway applications requiring connectivity and compute headroom, not precision analog or LCD HMI. | Choose R7FA6M2AF3CFP when migrating to connected systems needing TCP/IP stack or USB HID - not a drop-in replacement due to missing SDADC24/SLCDC and different pinout. |
Compared with R7FA2A2AD3CFP, the R7FA6T2AD3CNB#AA1 adds certified security and safety logic at identical analog/HMI capability; versus R7FA6M2AF3CFP, it trades raw performance and connectivity for ultra-low-power precision sensing and integrated display control - making it optimal for standalone, battery-operated measurement endpoints.
Availability
R7FA6T2AD3CNB#AA1 is available at Aetrix Electronics and suitable for portable medical instrumentation, industrial sensor nodes, smart utility meters, and home appliance control panels requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability under extended temperature ranges.
Supply support for R7FA6T2AD3CNB#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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets, with over 40 years of microcontroller innovation and ISO 26262/IEC 61508-certified development processes.
The RA2A2 group - including R7FA6T2AD3CNB#AA1 - was designed specifically for ultra-low-power, safety-aware human-machine interface applications demanding high-precision analog sensing, secure firmware updates, and integrated LCD driving in harsh environments.
FAQ
What is the maximum operating frequency and core architecture of the R7FA6T2AD3CNB#AA1?
The R7FA6T2AD3CNB#AA1 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), CoreSight™ MTB-M23 trace, and SW-DP debug interface. This architecture enables deterministic real-time execution and supports TrustZone-based secure partitioning - critical for applications requiring separation of trusted and untrusted code domains within the R7FA6T2AD3CNB#AA1.
Does the R7FA6T2AD3CNB#AA1 support hardware-accelerated cryptography?
Yes, the R7FA6T2AD3CNB#AA1 integrates a dedicated hardware AES engine supporting ECB, CBC, CTR, GCM, CMAC, and CCM cipher modes with 128-bit and 256-bit key lengths. It also includes a True Random Number Generator (TRNG) compliant with NIST SP 800-90B. These features enable fast, low-power encryption of firmware images and sensor data - essential for secure OTA updates and HIPAA-compliant medical device logging in the R7FA6T2AD3CNB#AA1.
How many analog-to-digital converters does the R7FA6T2AD3CNB#AA1 integrate, and what are their key specifications?
The R7FA6T2AD3CNB#AA1 integrates two distinct ADC subsystems: a 12-bit successive-approximation ADC (ADC12) with 4 input channels and internal temperature sensor reference, and a 24-bit Sigma-Delta ADC (SDADC24) with 7 differential input channels, programmable gain amplifier, and selectable sampling rates of 3.906 kHz or 7.813 kHz. Both converters operate independently and can be triggered via ELC or timers - enabling simultaneous high-speed and high-resolution acquisition in the R7FA6T2AD3CNB#AA1.
What LCD driving capabilities does the R7FA6T2AD3CNB#AA1 provide?
The R7FA6T2AD3CNB#AA1 includes a Segment LCD Controller/Driver (SLCDC) supporting up to 45 segment × 4 common or 41 segment × 8 common configurations. It offers three drive methods - internal voltage boosting, capacitor split, and external resistor division - with selectable waveforms (A or B) to optimize contrast and reduce flicker. The SLCDC operates from independent analog supplies (VL1–VL4, CAPH/CAPL) and requires no external driver ICs - simplifying bill-of-materials for the R7FA6T2AD3CNB#AA1 in portable HMI designs.
What safety and reliability features are implemented in the R7FA6T2AD3CNB#AA1?
The R7FA6T2AD3CNB#AA1 includes multiple IEC 61508 SIL2-ready features: ECC and parity protection for SRAM, flash area protection, ADC self-diagnosis, Clock Frequency Accuracy Measurement Circuit (CAC), Cyclic Redundancy Check (CRC), Data Operation Circuit (DOC), Independent Watchdog Timer (IWDT), GPIO readback level detection, and illegal memory access detection. These mechanisms collectively enable fault detection, recovery, and diagnostic coverage required for industrial and medical applications using the R7FA6T2AD3CNB#AA1.
R7FA6T2AD3CNB#AA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-WFQFN Exposed Pad
- Series:
- RA6T2
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M33
- Core Size:
- 32-Bit
- Speed:
- 240MHz
- Connectivity:
- 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:
R7FA6T2AD3CNB#AA1 FAQ
1.How can I place an order for R7FA6T2AD3CNB#AA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA6T2AD3CNB#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 R7FA6T2AD3CNB#AA1 reliable?
The price and inventory of R7FA6T2AD3CNB#AA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA6T2AD3CNB#AA1 is usually 5 days.
3.What payment methods are accepted for R7FA6T2AD3CNB#AA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA6T2AD3CNB#AA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA6T2AD3CNB#AA1?
R7FA6T2AD3CNB#AA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA6T2AD3CNB#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 R7FA6T2AD3CNB#AA1?
For technical support, including R7FA6T2AD3CNB#AA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA6T2AD3CNB#AA1 requirements.
6.How does Aetrix verify that R7FA6T2AD3CNB#AA1 is sourced from the original manufacturer or authorized distributors?
All R7FA6T2AD3CNB#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 R7FA6T2AD3CNB#AA1 meets industry standards.
7.What is the process for return or replacement of R7FA6T2AD3CNB#AA1?
All R7FA6T2AD3CNB#AA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA6T2AD3CNB#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 R7FA6T2AD3CNB#AA1 part is unused and in its original packaging.
Return procedure for R7FA6T2AD3CNB#AA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA6T2AD3CNB#AA1 Tags
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