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Renesas R7FA6T2AD3CNB#BA1
- Part No.:
- R7FA6T2AD3CNB#BA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-WFQFN Exposed Pad
- Datasheet:
-
R7FA6T2AD3CNB#BA1.pdf
- Description:
- MCU RA6T2 ARM CM33 240MHZ 512K/6
- Quantity:
- Payment:
- Shipping:
Inventory:2,723
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Product details
Overview
R7FA6T2AD3CNB#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 (7-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 smart utility meters requiring high-precision analog measurement and secure real-time control.
For engineers reviewing the R7FA6T2AD3CNB#BA1 datasheet, R7FA6T2AD3CNB#BA1 pinout, R7FA6T2AD3CNB#BA1 application, or R7FA6T2AD3CNB#BA1 equivalent, this page delivers verified technical context, package-specific pin mapping, real-world use cases, and validated alternative options for design-in and BOM optimization.
Technical Context
The R7FA6T2AD3CNB#BA1 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 capability and ECC-protected SRAM to support safe firmware updates and runtime integrity checking.
Analog subsystem includes a 24-bit sigma-delta ADC (SDADC24) with programmable gain amplifier, differential input support across 7 channels, and PLL-multiplied clocking from 32.768 kHz SOSC - enabling high-resolution sensor signal acquisition without external precision oscillators. The segment LCD controller supports up to 45 segments × 4 commons or 41 segments × 8 commons with internal voltage boosting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M23 @ 48 MHz - enables deterministic real-time control with TrustZone-based security isolation |
| Memory | 512-KB dual-bank flash + 8-KB data flash + 48-KB SRAM (16 KB ECC, 32 KB parity) - supports robust OTA updates and fault-tolerant data logging |
| ADC | 24-bit sigma-delta ADC (7 ch, differential/single-ended) + 12-bit SAR ADC (4 ch) - delivers >100 dB SNR for precision current/voltage sensing in energy metering |
| LCD Driver | Segment LCD controller with 45 seg × 4 com or 41 seg × 8 com output - drives multiplexed displays without external bias circuitry |
| RTC | Independent power supply RTC with calendar mode (2000–2099), alarm, and VRTC voltage monitoring - maintains timekeeping during main power loss |
| Security | AES-128/256 (ECB/CBC/CTR/GCM/CMAC/CCM) + TRNG - enables secure boot, encrypted firmware storage, and key generation for IoT edge authentication |
| Low Power | Multiple low-power modes with AGT/AGTW timers running on sub-clock oscillator - achieves µA-level active current for battery life extension |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), operating temperature range −40°C to +105°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: digital (VCC/VSS) and analog (AVCC/AVSS) with dedicated decoupling requirements |
| ANIP0–ANIP6 / ANIN0–ANIN6 | SDADC24 analog inputs | Differential pair inputs for 7-channel sigma-delta conversion; require matched PCB routing and AVCM reference stability |
| SEG0–SEG44 / COM0–COM7 | LCD segment/common outputs | Direct drive of multiplexed LCD glass; configurable for 4- or 8-common operation with internal boost or capacitor-split bias |
| XCIN / XCOUT | Sub-clock oscillator interface | 32.768 kHz crystal connection for RTC and SDADC24 PLL reference - critical for timekeeping and ADC accuracy |
| SWDIO / SWCLK | Debug interface | 2-pin Serial Wire Debug for programming and real-time trace; requires pull-up on SWDIO per JTAG/SWD spec |
| RTCIC0–RTCIC2 / RTCOUT | RTC event capture & output | External time-event latching (e.g., pulse metering) and 1 Hz/64 Hz clock output for system synchronization |
Key Features
| Feature | Design Value |
|---|---|
| Memory Mirror Function (MMF) | Enables seamless firmware update by mirroring application image from flash load address to link address - eliminates relocation code overhead |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining (e.g., ADC conversion completion → DMA transfer → CRC calculation) without CPU intervention |
| On-chip 32-bit MACL | 24-channel buffer for multiply-accumulate results - accelerates FIR filtering and sensor fusion algorithms in real time |
| SDADC24 Clock Architecture | PLL multiplication from 32.768 kHz SOSC provides stable, jitter-free sampling clock - avoids external high-frequency crystal for precision metrology |
| Independent Watchdog (IWDT) | Dedicated 15 kHz oscillator ensures fail-safe reset even if main clock fails - meets IEC 61508 SIL-2 functional safety requirements |
Applications
| Industrial Energy Metering | Portable Medical Sensors |
|---|---|
Use Scenario: Three-phase electricity meter with anti-tampering detection and LCD display. IC Role / Device Role / Timing Role: Primary MCU executing metrology algorithm, managing SDADC24 oversampling, driving LCD, and enforcing secure firmware updates. Use Value: 24-bit SDADC24 achieves Class 0.2 accuracy per IEC 62053-22; dual-bank flash enables field-upgradable tariff logic without service interruption. |
Use Scenario: Handheld ECG monitor with battery operation and graphical LCD feedback. IC Role / Device Role / Timing Role: Signal acquisition MCU capturing biopotential signals via SDADC24, performing real-time noise filtering, and rendering waveforms on integrated LCD. Use Value: Ultra-low-power AGT timers maintain heartbeat timing during sleep; on-chip TRNG seeds encryption for HIPAA-compliant patient data transmission. |
| Smart Water/Gas Meters | Industrial HMI Panels |
Use Scenario: Battery-powered ultrasonic flow meter with 10-year lifespan and tamper alerts. IC Role / Device Role / Timing Role: System controller handling pulse counting (RTCIC pins), SDADC24 temperature compensation, and secure NB-IoT communication via SCI. Use Value: Independent VRTC supply preserves calendar and alarm functions during main power outage; LVD_VBAT monitors backup battery health. |
Use Scenario: Panel-mounted operator interface with segmented LCD, push-button inputs, and local data logging. IC Role / Device Role / Timing Role: HMI processor managing button debouncing, LCD refresh, real-time clock display, and non-volatile parameter storage in data flash. Use Value: Segment LCD controller eliminates external driver IC; 48-KB SRAM buffers UI state and logs while maintaining responsiveness. |
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, 512-KB flash, 7-ch SDADC24, but lacks SLCDC waveform B mode and has different pin mux for SEG/COM signals | Supports same LCD configurations but requires layout review for SEG/COM pin assignment compatibility | Select when full SLCDC waveform A/B flexibility is not required and existing R7FA2A2AD3CFP design reuse is prioritized |
| R7FA6M2AD3CFP | RA6M2 family part: Cortex-M33 core, 100 MHz, 1 MB flash, no SDADC24, adds Ethernet MAC and USB FS - different analog architecture | Targets higher-performance HMI with network connectivity; unsuitable for precision sigma-delta measurement applications | Choose only if application demands >48 MHz processing or Ethernet/USB, and can replace SDADC24 with external ADC or lower-resolution internal ADC |
Compared with R7FA2A2AD3CFP, R7FA6T2AD3CNB#BA1 offers enhanced SLCDC waveform control and tighter integration of RTCIC event capture with SDADC24 calibration; versus R7FA6M2AD3CFP, it trades raw performance for superior analog precision and ultra-low-power metrology capability.
Availability
R7FA6T2AD3CNB#BA1 is available at Aetrix Electronics and suitable for industrial energy metering, portable medical sensors, smart utility meters, battery-powered HMI, and secure IoT endpoint applications requiring stable component supply across long product lifecycles.
Supply support for R7FA6T2AD3CNB#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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RA2A2 group - including R7FA6T2AD3CNB#BA1 - is designed for cost-sensitive, ultra-low-power applications demanding high-precision analog measurement, secure firmware execution, and integrated human-machine interface capabilities.
FAQ
What is the maximum operating frequency and core architecture of the R7FA6T2AD3CNB#BA1?
The R7FA6T2AD3CNB#BA1 features an Arm Cortex-M23 core operating at up to 48 MHz, based on the Armv8-M architecture with TrustZone security extensions. It includes an 8-region Memory Protection Unit (MPU), DWT/FPB debug modules, and CoreSight MTB-M23 trace capability - all confirmed in the R01DS0418EJ0130 datasheet Rev.1.30. This configuration delivers deterministic real-time performance with hardware-enforced memory isolation for secure firmware execution in the R7FA6T2AD3CNB#BA1.
Does the R7FA6T2AD3CNB#BA1 support dual-bank flash for safe firmware updates?
Yes, the R7FA6T2AD3CNB#BA1 integrates 512-KB code flash organized as two 256-KB banks, enabling bank-swap functionality. This allows one bank to execute while the other is being reprogrammed - a critical feature for over-the-air (OTA) updates in field-deployed devices. The Memory Mirror Function (MMF) further simplifies firmware migration by abstracting load vs. link addresses, as documented in Section 1.2 of the R01DS0418EJ0130 datasheet for the R7FA6T2AD3CNB#BA1.
What analog peripherals are integrated into the R7FA6T2AD3CNB#BA1?
The R7FA6T2AD3CNB#BA1 integrates two distinct ADC subsystems: a 24-bit sigma-delta ADC (SDADC24) with 7 differential or single-ended input channels and a 12-bit successive approximation ADC (ADC12) with 4 input channels. It also includes an on-chip temperature sensor (TSN), programmable gain amplifier (PGA) for SDADC24, and dedicated analog supply pins (AVCC/AVSS/AVCM). These are fully specified in Tables 1.7 and 1.8 of the R01DS0418EJ0130 datasheet for the R7FA6T2AD3CNB#BA1.
How does the segment LCD controller (SLCDC) in the R7FA6T2AD3CNB#BA1 operate?
The R7FA6T2AD3CNB#BA1's SLCDC supports up to 45 segment outputs × 4 commons or 41 segments × 8 commons, with selectable bias methods (internal voltage boosting, capacitor split, or external resistor division) and waveform A/B selection. It includes dedicated VL1–VL4 and CAPH/CAPL pins for LCD voltage control and COM0–COM7/SEG0–SEG44 outputs mapped to specific package pins. This capability is detailed in Table 1.9 and Figure 1.3 of the R01DS0418EJ0130 datasheet for the R7FA6T2AD3CNB#BA1.
What security features are implemented in the R7FA6T2AD3CNB#BA1?
The R7FA6T2AD3CNB#BA1 includes hardware-accelerated AES-128/256 (supporting 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 (PRCR). These features enable secure boot, encrypted firmware storage, and cryptographic key generation - all verified in Sections 1.10 and 1.11 of the R01DS0418EJ0130 datasheet for the R7FA6T2AD3CNB#BA1.
R7FA6T2AD3CNB#BA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 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#BA1 FAQ
1.How can I place an order for R7FA6T2AD3CNB#BA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA6T2AD3CNB#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 R7FA6T2AD3CNB#BA1 reliable?
The price and inventory of R7FA6T2AD3CNB#BA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA6T2AD3CNB#BA1 is usually 5 days.
3.What payment methods are accepted for R7FA6T2AD3CNB#BA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA6T2AD3CNB#BA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA6T2AD3CNB#BA1?
R7FA6T2AD3CNB#BA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA6T2AD3CNB#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 R7FA6T2AD3CNB#BA1?
For technical support, including R7FA6T2AD3CNB#BA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA6T2AD3CNB#BA1 requirements.
6.How does Aetrix verify that R7FA6T2AD3CNB#BA1 is sourced from the original manufacturer or authorized distributors?
All R7FA6T2AD3CNB#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 R7FA6T2AD3CNB#BA1 meets industry standards.
7.What is the process for return or replacement of R7FA6T2AD3CNB#BA1?
All R7FA6T2AD3CNB#BA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA6T2AD3CNB#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 R7FA6T2AD3CNB#BA1 part is unused and in its original packaging.
Return procedure for R7FA6T2AD3CNB#BA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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