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Renesas R7FA6T2AD3CNE#BA1
- Part No.:
- R7FA6T2AD3CNE#BA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R7FA6T2AD3CNE#BA1.pdf
- Description:
- MCU RA6T2 ARM CM33 240MHZ 512K/6
- Quantity:
- Payment:
- Shipping:
Inventory:2,193
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Product details
Overview
R7FA6T2AD3CNE#BA1 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, 24-bit sigma-delta ADC (7-channel), 12-bit ADC, segment LCD controller, independent power supply RTC, and hardware AES/TRNG security. It targets battery-powered smart meters and portable HMI devices requiring high-precision analog sensing and long-term timekeeping.
For engineers reviewing the R7FA6T2AD3CNE#BA1 datasheet, R7FA6T2AD3CNE#BA1 pinout, R7FA6T2AD3CNE#BA1 application, or R7FA6T2AD3CNE#BA1 equivalent, key selection criteria include its 7-channel SDADC24 with programmable gain amplifier, 100-pin LQFP package with 67 GPIOs and 3 dedicated RTC input pins, -40°C to +105°C operation, and integrated ECC/SRAM parity for functional safety compliance.
Technical Context
This MCU implements the Armv8-M architecture with Memory Protection Unit (8 regions) and CoreSight™ MTB-M23 trace, enabling secure, deterministic real-time execution. Its dual-bank flash supports Bank Swap for seamless firmware updates without system interruption.
The analog subsystem integrates two independent A/D converters: the 24-bit SDADC24 uses PLL-multiplied sub-clock (32.768 kHz → 12.0/12.8 MHz) for high-resolution metrology-grade measurements, while the 12-bit ADC12 provides fast sampling of up to 4 channels including temperature sensor and internal reference voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 at 48 MHz with Armv8-M architecture and MPU (8 regions) |
| Memory | 512-KB dual-bank code flash (256 KB × 2), 8-KB data flash (100k P/E cycles), 48-KB SRAM with ECC/parity split |
| Analog Converters | 24-bit sigma-delta ADC (SDADC24) with 7 differential/single-ended inputs and PGA; 12-bit SAR ADC (ADC12) with 4 inputs including TSN |
| Timing & RTC | Independent power supply RTC with calendar mode (2000–2099), alarm, correction, and VRTC monitoring; IWDT with dedicated 15-kHz oscillator |
| Security | Hardware AES-128/256 (ECB/CBC/CTR/GCM/CMAC/CCM), TRNG, CAC clock accuracy measurement, CRC, DOC, and register write protection |
| Package & Environment | 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), -40°C to +105°C operating temperature, 1.6–5.5 V supply |
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 and ground | Dual-domain power: VCC powers digital core; AVCC/AVSS isolate analog subsystem for noise-sensitive SDADC24/ADC12 operation |
| ANIP0–ANIP6 / ANIN0–ANIN6 | SDADC24 analog inputs | Differential pair inputs supporting 7-channel high-resolution metrology; require external RC filtering per datasheet layout guidelines |
| SEG0–SEG44 / COM0–COM7 | Segment LCD driver outputs | Configurable 45-segment × 4-common or 41-segment × 8-common drive; supports internal boost, capacitor-split, or resistor-divider bias methods |
| RTCIC0–RTCIC2 | RTC event capture inputs | Three dedicated 5-V-tolerant pins for external time-critical events (e.g., pulse-per-second from GPS or utility meter); operate independently of main VCC domain |
| SWDIO / SWCLK | Debug interface | 2-pin Serial Wire Debug (SWD) compliant with ARM CoreSight; enables non-intrusive debugging and flash programming during development and field updates |
Key Features
| Feature | Design Value |
|---|---|
| Memory Mirror Function (MMF) | Enables application code to be linked to fixed virtual address while loading into any physical flash bank-simplifies OTA update implementation without linker script changes |
| Event Link Controller (ELC) | Direct hardware routing of peripheral events (e.g., ADC conversion complete → DMA trigger) eliminates CPU polling and reduces latency by up to 3 µs |
| 32-bit MACL unit | 24-channel buffer with independent addressing supports real-time FIR/IIR filtering on SDADC24 output streams without CPU intervention |
| Low-power timers | 8× AGT (16-bit) and 2× AGTW (32-bit) timers run asynchronously from sub-clock (32.768 kHz), enabling wake-up from deep-sleep modes every 15.26 ms to 131 s with <1 µA current draw |
| SLCDC waveform control | Selectable Waveform A/B and VL1/VL2 reference modes allow optimization of LCD contrast and power consumption across varying temperature and battery voltage conditions |
Applications
| Smart Electricity Meter | Portable Gas Detector |
|---|---|
Use Scenario: Utility-grade meter measuring active/reactive energy with anti-tampering features and 10-year battery life. IC Role / Device Role / Timing Role: Primary metrology controller performing simultaneous 7-channel SDADC24 sampling at 7.813 kHz, real-time harmonic analysis via MACL, and calendar-synchronized billing data logging using independent RTC. Use Value: 24-bit resolution enables Class 0.2 accuracy per IEC 62053-22; dual-bank flash allows secure firmware updates during meter operation without service interruption. | Use Scenario: Handheld gas analyzer with electrochemical sensors, OLED/LCD display, and Bluetooth LE reporting. IC Role / Device Role / Timing Role: Sensor fusion hub acquiring low-noise analog signals from multiple gas sensors via SDADC24, driving segment LCD with SLCDC, and managing BLE coexistence using ELC-triggered SPI transfers. Use Value: Integrated 5-V-tolerant RTCIC pins accept external pulse inputs from gas sensor fault alerts; ultra-low-power AGT timers extend battery life beyond 12 months on 2× AA cells. |
| Industrial Panel Meter | Water Quality Monitor |
Use Scenario: DIN-rail mounted panel meter displaying flow, pressure, and temperature with Modbus RTU communication. IC Role / Device Role / Timing Role: Real-time process controller executing PID loops using ADC12 inputs and GPT16 PWM outputs, while maintaining accurate time-stamped Modbus logs via independent RTC and VRTC-supplied backup. Use Value: 48-KB SRAM with ECC ensures data integrity during brown-out events; 100-pin LQFP provides sufficient GPIO for isolated RS-485 transceivers and analog front-end calibration DACs. | Use Scenario: Submersible probe measuring pH, ORP, conductivity, and dissolved oxygen in wastewater treatment plants. IC Role / Device Role / Timing Role: Analog signal conditioner digitizing four sensor types simultaneously using SDADC24's programmable gain amplifier and ADC12's internal reference, with automatic temperature compensation via on-chip TSN. Use Value: 24-bit SDADC24 achieves 120 dB SNR for microvolt-level pH electrode signals; CAC validates oscillator accuracy to maintain ±1 ppm timing stability over temperature for sensor calibration intervals. |
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 512-KB flash, 48-KB SRAM, and SDADC24 7-channel; differs only in package (100-pin LQFP vs. 100-pin LQFP) and marking suffix | No functional difference; R7FA6T2AD3CNE#BA1 is Renesas' updated part number for same silicon die and revision | Select R7FA6T2AD3CNE#BA1 for new designs to ensure access to latest errata and long-term supply continuity |
| R7FA4M2AD3CFP | RA4M2 family: Arm Cortex-M33 core, 200 MHz, 1 MB flash, no SDADC24, adds USB FS and CAN FD; lacks independent RTC power domain and SLCDC | Suitable for higher-performance HMI or connectivity-focused applications but cannot replace R7FA6T2AD3CNE#BA1 in metrology or LCD-driven metering | Choose only if application requires USB/CAN and can sacrifice 24-bit precision analog and RTC autonomy |
Compared with R7FA2A2AD3CFP, R7FA6T2AD3CNE#BA1 offers identical metrology-grade analog performance and packaging but reflects Renesas' current production nomenclature; versus R7FA4M2AD3CFP, it trades raw compute throughput for superior low-power analog integration and autonomous timekeeping essential for battery-operated utility infrastructure.
Availability
R7FA6T2AD3CNE#BA1 is available at Aetrix Electronics and suitable for smart metering, portable instrumentation, industrial HMI, and water/gas quality monitoring requiring stable component supply across extended product lifecycles.
Supply support for R7FA6T2AD3CNE#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 design innovation for automotive, industrial, infrastructure, and IoT applications.
The RA2A2 group-including R7FA6T2AD3CNE#BA1-is engineered specifically for ultra-low-power, high-precision analog-intensive applications such as utility meters, portable medical devices, and environmental sensors where metrology-grade ADCs and autonomous RTC operation are critical.
FAQ
What is the maximum sampling rate of the 24-bit sigma-delta ADC in R7FA6T2AD3CNE#BA1?
The R7FA6T2AD3CNE#BA1 SDADC24 supports two selectable sampling rates: 7.813 kHz and 8.333 kHz when using the 12.0 MHz PLL clock, or 3.906 kHz and 4.166 kHz when using the 12.8 MHz PLL clock. These rates are fixed per clock configuration and apply across all 7 differential input channels simultaneously.
Does R7FA6T2AD3CNE#BA1 support true hardware-based AES encryption acceleration?
Yes, R7FA6T2AD3CNE#BA1 includes a dedicated hardware AES engine supporting ECB, CBC, CTR, GCM, CMAC, and CCM modes with 128-bit and 256-bit key lengths. Encryption/decryption operations execute independently of the CPU core, reducing latency and power consumption compared to software-only implementations.
How many general-purpose I/O pins does R7FA6T2AD3CNE#BA1 provide in its 100-pin LQFP package?
R7FA6T2AD3CNE#BA1 provides 67 general-purpose I/O pins in the 100-pin LQFP package, plus 3 dedicated input-only pins (RTCIC0–RTCIC2) and 1 output-only pin (P600), totaling 71 functional I/O terminals with configurable pull-up, open-drain, and 5-V tolerance on select signals.
Can R7FA6T2AD3CNE#BA1 operate from a single 3.3 V supply across its full temperature range?
Yes, R7FA6T2AD3CNE#BA1 operates from 1.6 V to 5.5 V, fully supporting 3.3 V nominal supply across its entire -40°C to +105°C industrial temperature range. Both digital (VCC) and analog (AVCC) domains function correctly at 3.3 V, and the independent RTC domain (VRTC) may be supplied separately at 1.8–3.6 V for extended backup operation.
What LCD segment drive capability does R7FA6T2AD3CNE#BA1 offer?
R7FA6T2AD3CNE#BA1's Segment LCD Controller (SLCDC) supports up to 45 segment outputs and 4 common outputs (or 41 segments × 8 commons) with selectable waveform A/B, internal voltage boosting, capacitor-split, or external resistor-divider bias methods-enabling direct drive of multiplexed LCDs in portable meters and industrial displays without external drivers.
R7FA6T2AD3CNE#BA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-WFQFN Exposed Pad
- Series:
- RA6T2
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- 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:
- 35
- 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 10x12b SAR; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA6T2AD3CNE#BA1 FAQ
1.How can I place an order for R7FA6T2AD3CNE#BA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA6T2AD3CNE#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 R7FA6T2AD3CNE#BA1 reliable?
The price and inventory of R7FA6T2AD3CNE#BA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA6T2AD3CNE#BA1 is usually 5 days.
3.What payment methods are accepted for R7FA6T2AD3CNE#BA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA6T2AD3CNE#BA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA6T2AD3CNE#BA1?
R7FA6T2AD3CNE#BA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA6T2AD3CNE#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 R7FA6T2AD3CNE#BA1?
For technical support, including R7FA6T2AD3CNE#BA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA6T2AD3CNE#BA1 requirements.
6.How does Aetrix verify that R7FA6T2AD3CNE#BA1 is sourced from the original manufacturer or authorized distributors?
All R7FA6T2AD3CNE#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 R7FA6T2AD3CNE#BA1 meets industry standards.
7.What is the process for return or replacement of R7FA6T2AD3CNE#BA1?
All R7FA6T2AD3CNE#BA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA6T2AD3CNE#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 R7FA6T2AD3CNE#BA1 part is unused and in its original packaging.
Return procedure for R7FA6T2AD3CNE#BA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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