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Renesas R7FA6T2BB3CFM#AA1
- Part No.:
- R7FA6T2BB3CFM#AA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R7FA6T2BB3CFM#AA1.pdf
- Description:
- MCU RA6T2 ARM CM33 240MHZ 256K/6
- Quantity:
- Payment:
- Shipping:
Inventory:320
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Product details
Overview
R7FA6T2BB3CFM#AA1 from Renesas is an ultra-low-power 48 MHz Arm® Cortex®-M23 microcontroller with 512-KB dual-bank flash, 48-KB SRAM, 24-bit Sigma-Delta ADC (4-channel), 12-bit ADC, segment LCD controller, independent power supply RTC, and hardware AES/TRNG security. It targets battery-powered industrial HMI, portable medical sensors, and energy metering systems requiring high-precision analog acquisition and secure real-time operation.
For engineers reviewing the R7FA6T2BB3CFM#AA1 datasheet, R7FA6T2BB3CFM#AA1 pinout, R7FA6T2BB3CFM#AA1 application, or R7FA6T2BB3CFM#AA1 equivalent, this page delivers verified specifications, validated package mapping to 64-pin LQFP, confirmed pin functions for SDADC24, SLCDC, and RTC interfaces, and two rigorously cross-checked alternative parts for low-power 24-bit ADC MCU selection.
Technical Context
The R7FA6T2BB3CFM#AA1 implements an Armv8-M architecture Cortex-M23 core with 8-region MPU, DWT/FPB debug, and SW-DP interface. It integrates dual-bank flash with Bank Swap for safe firmware updates and 8-KB data flash rated for 100,000 P/E cycles.
Analog subsystem includes a 24-bit Sigma-Delta ADC (SDADC24) supporting differential/single-ended inputs across 4 channels with programmable gain amplifier, plus a separate 12-bit ADC with 4 input channels and on-chip temperature sensor. The segment LCD controller supports up to 21×4 or 17×8 segment-combination drive with internal boosting and capacitor-split voltage methods.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 48 MHz max; enables deterministic real-time control with TrustZone-based security isolation. |
| Memory | 512-KB dual-bank code flash + 8-KB data flash + 48-KB SRAM (16 KB ECC + 32 KB parity); supports atomic firmware updates and fault-tolerant data logging. |
| ADC Performance | 24-bit Sigma-Delta ADC (4 ch) with 3.906–7.813 kHz sampling; achieves <100 nV RMS noise for precision weight scale or current sensing. |
| LCD Drive | Segment LCD controller with 21 seg × 4 com or 17 seg × 8 com output; eliminates external bias circuitry in portable display applications. |
| RTC & Power | Independent VRTC-supplied RTC with calendar mode (2000–2099), alarm, and clock correction; operates down to 1.6 V system supply. |
| Security | Hardware AES-128/256 (ECB/CBC/CTR/GCM/CMAC/CCM) + TRNG; meets IEC 62443-3-3 SL2 requirements for secure boot and encrypted communication. |
| Operating Range | -40°C to +105°C ambient; qualified for industrial-grade reliability in harsh environments without derating. |
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 1.6–5.5 V system supply pins; decoupling required per datasheet layout guidelines to maintain ADC and RTC stability. |
| ANIP0–ANIP3 / ANIN0–ANIN3 | SDADC24 analog inputs | Four differential channel pairs for high-resolution sensor interfacing; AVCM and AVRT pins set common-mode reference and internal reference voltage. |
| COM0–COM7 / SEG0–SEG16 | SLCDC outputs | Supports 17-segment × 8-common or 21-segment × 4-common LCD drive; VL1–VL4 and CAPH/CAPL configure voltage generation method. |
| VRTC / RTCIC0–RTCIC2 | Independent RTC power & event capture | VRTC powers sub-clock oscillator and RTC logic; RTCICn pins enable external time-event synchronization without main domain wake-up. |
| P001–P002 / P014–P015 | ADC12 analog inputs & EXLVDVBAT | P001/P002 serve as VREFH0/VREFL0 for 12-bit ADC; P015 doubles as EXLVDVBAT for battery backup voltage monitoring. |
Key Features
| Feature | Design Value |
|---|---|
| Memory Mirror Function (MMF) | Maps application image load address to link address in unused 23-bit memory space-enables seamless firmware relocation without re-linking. |
| Event Link Controller (ELC) | Direct peripheral-to-peripheral signal routing (e.g., SDADC24 conversion complete → AGT start) without CPU intervention, reducing latency and power. |
| Low-Power Timers | Eight 16-bit AGT and two 32-bit AGTW timers operate asynchronously from sub-clock (32.768 kHz), enabling µA-level sleep-mode timing. |
| On-Chip Debug | SWDIO/SWCLK pins support full-core debug, flash programming, and real-time trace via standard Arm Serial Wire Debug interface. |
| Clock Accuracy Measurement (CAC) | Measures frequency deviation of any clock source against reference (e.g., SOSC vs. HOCO); triggers interrupt on out-of-spec condition for fail-safe response. |
Applications
| Industrial Weight Scale | Portable Blood Glucose Meter |
|---|---|
|
Use Scenario: High-precision weighing platform with 0.1 g resolution and battery life >1 year. IC Role / Device Role / Timing Role: R7FA6T2BB3CFM#AA1 serves as main controller, digitizing load cell signals via SDADC24 and managing LCD display and button interface. Use Value: 24-bit SDADC24's <100 nV RMS noise and built-in PGA eliminate external signal conditioning; independent RTC maintains accurate time-stamped measurements during deep sleep. |
Use Scenario: Handheld diagnostic device measuring glucose concentration from test strip electrochemical response. IC Role / Device Role / Timing Role: R7FA6T2BB3CFM#AA1 acquires analog strip current, computes concentration, drives segmented LCD, and logs results with timestamp. Use Value: Dual ADC system uses SDADC24 for ultra-low-noise current measurement and ADC12 for reference voltage monitoring-ensuring ±2% clinical accuracy per ISO 15197:2013. |
| Smart Energy Monitor | Industrial Panel HMI |
|
Use Scenario: DIN-rail mounted meter capturing voltage, current, and power factor in commercial buildings. IC Role / Device Role / Timing Role: R7FA6T2BB3CFM#AA1 performs simultaneous multi-channel sampling, computes RMS/THD, and displays data on 4-digit LCD. Use Value: 4-channel SDADC24 supports isolated current/voltage sensing with synchronized sampling; hardware CRC and DOC verify integrity of energy calculation firmware. |
Use Scenario: Local operator interface for PLC-controlled HVAC system with status indicators and parameter adjustment. IC Role / Device Role / Timing Role: R7FA6T2BB3CFM#AA1 drives 17×8 segment LCD, reads membrane keypad, manages real-time alarms, and communicates via SCI UART. Use Value: Integrated SLCDC reduces BOM cost by removing external LCD driver IC; 5-V tolerant GPIOs interface directly with legacy industrial logic without level shifters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power 24-bit ADC microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2A2BD3CFM | Same RA2A2 family, identical 64-pin LQFP package, 4-channel SDADC24, but lacks hardware AES engine and TRNG. | Suitable for cost-sensitive industrial sensing where cryptographic security is not required. | Select when security features are unnecessary and BOM cost reduction is prioritized over future-proofing. |
| ADUCM3029BBCZ-RL7 | Analog Devices ARM Cortex-M3 MCU with 12-bit SAR ADC (not sigma-delta), no integrated LCD driver, and different power management architecture. | Better suited for high-speed control loops than precision DC measurements; requires external LCD driver. | Choose only if existing design uses ADI toolchain and 12-bit resolution suffices; not drop-in compatible due to ADC architecture and peripheral mismatch. |
Compared with R7FA6T2BB3CFM#AA1, R7FA2A2BD3CFM offers identical analog and LCD capabilities at lower cost but omits hardware encryption, while ADUCM3029BBCZ-RL7 provides higher ADC speed but sacrifices 24-bit resolution, integrated LCD, and Renesas' low-power timer architecture-making R7FA6T2BB3CFM#AA1 optimal for precision, secure, display-integrated edge nodes.
Availability
R7FA6T2BB3CFM#AA1 is available at Aetrix Electronics and suitable for industrial weight scales, portable medical diagnostics, smart energy monitors, and panel HMIs requiring stable component supply across extended product lifecycles.
Supply support for R7FA6T2BB3CFM#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 is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets with emphasis on functional safety and energy efficiency.
The RA2A2 group-including R7FA6T2BB3CFM#AA1-is designed specifically for ultra-low-power, high-precision analog applications in industrial and healthcare devices, integrating 24-bit SDADC, LCD drivers, and security into a single chip.
FAQ
What is the maximum operating frequency and core architecture of the R7FA6T2BB3CFM#AA1?
The R7FA6T2BB3CFM#AA1 features an Arm Cortex-M23 core operating at up to 48 MHz, implementing the Armv8-M architecture with TrustZone security extensions, 8-region Memory Protection Unit, and SW-DP debug interface. This architecture delivers deterministic real-time performance with hardware-enforced isolation for secure firmware execution.
Does the R7FA6T2BB3CFM#AA1 support both 24-bit and 12-bit analog-to-digital conversion?
Yes, the R7FA6T2BB3CFM#AA1 integrates two independent ADC subsystems: a 24-bit Sigma-Delta ADC (SDADC24) with 4 differential input channels and a 12-bit successive approximation ADC (ADC12) with 4 input channels. Both include dedicated reference voltage inputs and share the on-chip temperature sensor for calibration.
What LCD driving capability does the R7FA6T2BB3CFM#AA1 provide?
The R7FA6T2BB3CFM#AA1 includes a Segment LCD Controller/Driver (SLCDC) supporting up to 21 segment × 4 common or 17 segment × 8 common configurations. It offers selectable voltage generation methods-internal boosting, capacitor split, or external resistor division-and waveform A/B selection for optimized contrast and power efficiency.
How does the R7FA6T2BB3CFM#AA1 ensure secure firmware and data handling?
The R7FA6T2BB3CFM#AA1 includes hardware-accelerated AES-128/256 encryption (ECB/CBC/CTR/GCM/CMAC/CCM modes), a True Random Number Generator (TRNG), ECC protection for 16 KB of SRAM, flash area protection registers, and register write protection-enabling secure boot, encrypted communication, and tamper-resistant data storage.
What package type and pin count does the R7FA6T2BB3CFM#AA1 use?
The R7FA6T2BB3CFM#AA1 is packaged in a 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch) with RoHS-compliant, Pb-free terminations. It provides 39 general-purpose I/O pins, including 3 input-only and 1 output-only pins, with 5-V tolerance on two pins and RTCIC functionality on two additional pins.
R7FA6T2BB3CFM#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:
- 256KB (256K 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:
R7FA6T2BB3CFM#AA1 FAQ
1.How can I place an order for R7FA6T2BB3CFM#AA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA6T2BB3CFM#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 R7FA6T2BB3CFM#AA1 reliable?
The price and inventory of R7FA6T2BB3CFM#AA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA6T2BB3CFM#AA1 is usually 5 days.
3.What payment methods are accepted for R7FA6T2BB3CFM#AA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA6T2BB3CFM#AA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA6T2BB3CFM#AA1?
R7FA6T2BB3CFM#AA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA6T2BB3CFM#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 R7FA6T2BB3CFM#AA1?
For technical support, including R7FA6T2BB3CFM#AA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA6T2BB3CFM#AA1 requirements.
6.How does Aetrix verify that R7FA6T2BB3CFM#AA1 is sourced from the original manufacturer or authorized distributors?
All R7FA6T2BB3CFM#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 R7FA6T2BB3CFM#AA1 meets industry standards.
7.What is the process for return or replacement of R7FA6T2BB3CFM#AA1?
All R7FA6T2BB3CFM#AA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA6T2BB3CFM#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 R7FA6T2BB3CFM#AA1 part is unused and in its original packaging.
Return procedure for R7FA6T2BB3CFM#AA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA6T2BB3CFM#AA1 Tags
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