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Renesas R7FA6T2BB3CFM#BA1
- Part No.:
- R7FA6T2BB3CFM#BA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R7FA6T2BB3CFM#BA1.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,483
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Product details
Overview
R7FA6T2BB3CFM#BA1 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 RTC, and AES/ TRNG security. It targets battery-powered industrial HMI, portable medical sensors, and energy metering systems requiring high-precision analog acquisition and secure firmware updates.
For engineers reviewing the R7FA6T2BB3CFM#BA1 datasheet, R7FA6T2BB3CFM#BA1 pinout, R7FA6T2BB3CFM#BA1 application, or R7FA6T2BB3CFM#BA1 equivalent, key selection criteria include its 64-pin LQFP package, 4-channel SDADC24 with programmable gain amplifier, dual-bank flash for safe firmware updates, ECC-protected SRAM, and integrated segment LCD driver supporting up to 21 segments × 4 commons.
Technical Context
The R7FA6T2BB3CFM#BA1 implements Armv8-M architecture with Memory Protection Unit (8 regions) and CoreSight™ MTB-M23 trace. Its analog subsystem integrates two independent A/D converters: a 12-bit SAR ADC (4 channels) and a 24-bit sigma-delta ADC (4 differential/single-ended inputs) clocked via PLL-multiplied sub-oscillator (32.768 kHz).
System-level features include Event Link Controller (ELC) for CPU-free peripheral triggering, Data Transfer Controller (DTC) for autonomous data movement, and Security IP comprising AES-128/256 (ECB/CBC/CTR/GCM/CMAC/CCM) and True Random Number Generator (TRNG). Power management supports multiple low-power modes with independent RTC powered by VRTC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 48 MHz; supports Armv8-M security extensions and MPU with 8 memory regions. |
| Memory | 512-KB dual-bank code flash (256 KB × 2) enabling bank-swap firmware updates; 8-KB data flash (100k P/E cycles); 48-KB SRAM with ECC on 16 KB. |
| Analog Peripherals | 24-bit sigma-delta ADC (SDADC24) with 4-channel input, PGA, and 7.813/3.906 kHz sampling; 12-bit ADC (ADC12) with 4 channels and temperature sensor input. |
| Human Interface | Segment LCD controller (SLCDC) supporting 21 seg × 4 com or 17 seg × 8 com; internal voltage boosting and waveform-A/B selectable. |
| Security & Safety | AES-128/256 engine (ECB/CBC/CTR/GCM/CMAC/CCM); TRNG; CRC, DOC, CAC, IWDT, SRAM parity/ECC, flash area protection. |
| Package & Environment | 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch); operating temperature −40°C to +105°C; supply voltage 1.6–5.5 V. |
| I/O & Connectivity | 39 general-purpose I/O pins (3 input-only, 1 output-only); 5 × SCI (UART/SPI/IIC/smart card); 2 × I2C; 1 × SPI; 6 × GPT16 timers; 8 × AGT16; 2 × AGTW32. |
Pinout & Package
Package: 64-pin LQFP (PLQP0064KB-C), 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: VCC (1.6–5.5 V digital/analog core), VSS (digital ground), AVCC/AVSS (separate analog supply for ADC/SDADC/TSN). |
| XCIN / XCOUT | Sub-clock oscillator interface | Connects 32.768 kHz crystal for RTC and SDADC24 PLL reference; enables independent RTC operation during main power loss. |
| VRTC | Independent RTC power supply | Dedicated input for backup battery or supercapacitor to maintain RTC calendar, alarm, and clock correction functions during main power-off. |
| ANIP0–ANIP3 / ANIN0–ANIN3 | SDADC24 analog inputs | Four differential input pairs (±) for high-resolution sensor measurement; supports single-ended mode and programmable gain amplifier. |
| SEG0–SEG20 / COM0–COM3 | LCD segment/common outputs | Drives up to 21 segments and 4 commons directly; configurable voltage boosting and waveform timing for low-power LCD displays. |
| SWDIO / SWCLK | Debug interface | Two-pin Serial Wire Debug (SWD) for programming, real-time tracing, and non-intrusive debugging without halting CPU execution. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank flash with bank swap | Enables seamless firmware updates with zero downtime: new image written to inactive bank while active bank continues execution. |
| 24-bit SDADC24 with PGA | Delivers 110 dB SNR and <1 ppm THD for precision weight scales, gas sensors, and energy metering without external signal conditioning. |
| Independent-power RTC | Maintains accurate calendar (2000–2099), alarm, and clock correction over 99 years using VRTC-supplied backup power, even during main system shutdown. |
| Memory Mirror Function (MMF) | Allows application code to be linked to fixed virtual address while loading to any physical flash location-simplifies bootloader development and field updates. |
| AES-256 + TRNG | Hardware-accelerated encryption and cryptographically secure random number generation enable FIPS-compliant secure boot and OTA update authentication. |
Applications
| Industrial HMI Panels | Portable Medical Sensors |
|---|---|
|
Use Scenario: Battery-powered handheld devices displaying real-time vital signs (ECG, SpO₂) with segmented LCD and local data logging. IC Role / Device Role / Timing Role: Primary MCU executing sensor fusion algorithms, driving LCD segments, managing secure BLE data transmission, and maintaining RTC timestamping. Use Value: Integrated 24-bit SDADC24 eliminates external delta-sigma converter; independent VRTC ensures accurate event timestamps during battery brownouts. |
Use Scenario: Wearable glucose monitors requiring ultra-low-power continuous analog sensing and encrypted data storage. IC Role / Device Role / Timing Role: Low-power sensor hub acquiring from electrochemical transducers, performing baseline correction, and encrypting readings before storage in protected flash. Use Value: 48 MHz Cortex-M23 with DTC offloads ADC-to-memory transfers; AES-256 and TRNG meet HIPAA-compliant data-at-rest requirements. |
| Smart Energy Meters | Low-Power Industrial Controllers |
|
Use Scenario: DIN-rail mounted electricity meters measuring voltage/current harmonics and calculating kWh with metrology-grade accuracy. IC Role / Device Role / Timing Role: Metrology processor interfacing with isolated current/voltage sensors, computing RMS, THD, and power factor using MACL hardware accelerator. Use Value: 24-bit SDADC24 with programmable gain achieves >0.1% accuracy across 1000:1 dynamic range; ECC SRAM prevents corruption of billing data. |
Use Scenario: Remote PLC I/O modules monitoring temperature, pressure, and valve status in hazardous environments with limited power budget. IC Role / Device Role / Timing Role: Field controller executing deterministic logic, reading analog/digital inputs, driving relay outputs, and reporting via RS-485 SCI interface. Use Value: ELC links sensor interrupts directly to AGT timers for jitter-free pulse-width measurement; LVD_VRTC detects backup battery depletion before RTC failure. |
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 SLCDC and has reduced I/O count (39 vs 39 same, but fewer LCD pins allocated). | Targeted at cost-sensitive sensor nodes where LCD display is unnecessary; retains full analog/security/peripheral set except display driver. | Select R7FA2A2BD3CFM if segment LCD functionality is unused and BOM cost reduction is critical; verify pin compatibility for non-LCD signals. |
| R7FA6M2AD3CFM | RA6M2-series part: Cortex-M33 core (100 MHz), larger memory (1 MB flash/256 KB SRAM), no SDADC24, adds Ethernet MAC and USB FS, different security IP (TrustZone). | Suitable for connected edge gateways requiring network stack offload and higher compute throughput, but lacks metrology-grade analog front-end. | Choose R7FA6M2AD3CFM when connectivity (Ethernet/USB) and performance outweigh precision analog needs; not a drop-in replacement due to core, clock, and peripheral differences. |
Compared with R7FA6T2BB3CFM#BA1, R7FA2A2BD3CFM offers identical analog and security capabilities in the same footprint but omits LCD driver circuitry, while R7FA6M2AD3CFM trades SDADC24 and low-power design for higher performance and connectivity-making it suitable for gateway-tier rather than sensor-tier deployment.
Availability
R7FA6T2BB3CFM#BA1 is available at Aetrix Electronics and suitable for industrial HMI panels, portable medical sensors, and smart energy meters requiring stable component supply, long-term lifecycle support, and automotive-grade reliability under extended temperature conditions.
Supply support for R7FA6T2BB3CFM#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 solutions for automotive, industrial, infrastructure, and IoT applications, with deep expertise in microcontrollers, analog, and power management.
The RA2A2 product line is designed specifically for ultra-low-power, high-precision analog applications in industrial and healthcare equipment, integrating metrology-grade ADCs, secure firmware execution, and human interface peripherals in compact packages.
FAQ
What is the maximum operating frequency and core architecture of the R7FA6T2BB3CFM#BA1?
The R7FA6T2BB3CFM#BA1 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), DWT, FPB, and CoreSight™ MTB-M23 trace capability. This architecture enables secure, deterministic real-time control in resource-constrained applications while supporting modern firmware security practices.
Does the R7FA6T2BB3CFM#BA1 support dual-bank flash for safe firmware updates?
Yes, the R7FA6T2BB3CFM#BA1 includes 512-KB code flash organized as two 256-KB banks, enabling bank-swap firmware updates. This allows one bank to run the active application while the other receives and validates a new image-ensuring zero-downtime field upgrades and robust recovery from failed updates. The Memory Mirror Function (MMF) further simplifies bootloader design by decoupling link address from physical flash location.
How many analog input channels does the 24-bit sigma-delta ADC (SDADC24) support on the R7FA6T2BB3CFM#BA1?
The R7FA6T2BB3CFM#BA1's SDADC24 supports four differential analog input channels (ANIP0/ANIN0 through ANIP3/ANIN3), configurable for single-ended operation. Each channel includes a programmable gain amplifier (PGA), and sampling rates are selectable at 7.813 kHz or 3.906 kHz. This configuration delivers metrology-grade resolution for applications such as precision weight scales and energy metering without external signal conditioning.
What LCD driving capability does the R7FA6T2BB3CFM#BA1 provide?
The R7FA6T2BB3CFM#BA1 integrates a Segment LCD Controller/Driver (SLCDC) supporting up to 21 segment outputs and 4 common outputs (or 17 segments × 8 commons). It offers switchable drive methods (internal voltage boosting, capacitor split, external resistor division), selectable waveforms (A/B), and blink control. This eliminates external LCD driver ICs in compact HMI designs like portable test equipment and battery-powered instrumentation.
Is the RTC in the R7FA6T2BB3CFM#BA1 powered independently, and what features does it include?
Yes, the R7FA6T2BB3CFM#BA1 includes an independent-power RTC supplied via the VRTC pin, allowing continuous timekeeping during main power loss. It supports calendar mode (2000–2099 with leap-year correction), binary count mode, alarm interrupt, and clock correction function. The RTC operates from the 32.768 kHz sub-clock oscillator (SOSC), and its power-on-reset (RTCPOR) circuit ensures reliable initialization from backup power sources.
R7FA6T2BB3CFM#BA1 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#BA1 FAQ
1.How can I place an order for R7FA6T2BB3CFM#BA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA6T2BB3CFM#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 R7FA6T2BB3CFM#BA1 reliable?
The price and inventory of R7FA6T2BB3CFM#BA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA6T2BB3CFM#BA1 is usually 5 days.
3.What payment methods are accepted for R7FA6T2BB3CFM#BA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA6T2BB3CFM#BA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA6T2BB3CFM#BA1?
R7FA6T2BB3CFM#BA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA6T2BB3CFM#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 R7FA6T2BB3CFM#BA1?
For technical support, including R7FA6T2BB3CFM#BA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA6T2BB3CFM#BA1 requirements.
6.How does Aetrix verify that R7FA6T2BB3CFM#BA1 is sourced from the original manufacturer or authorized distributors?
All R7FA6T2BB3CFM#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 R7FA6T2BB3CFM#BA1 meets industry standards.
7.What is the process for return or replacement of R7FA6T2BB3CFM#BA1?
All R7FA6T2BB3CFM#BA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA6T2BB3CFM#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 R7FA6T2BB3CFM#BA1 part is unused and in its original packaging.
Return procedure for R7FA6T2BB3CFM#BA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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