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Renesas R7FA6T2AB3CFL#AA0
- Part No.:
- R7FA6T2AB3CFL#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R7FA6T2AB3CFL#AA0.pdf
- Description:
- MCU RA6T2 ARM CM33 240MHZ 256K/6
- Quantity:
- Payment:
- Shipping:
Inventory:500
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Product details
Overview
R7FA6T2AB3CFL#AA0 from Renesas is an Arm® Cortex®-M23 microcontroller operating at up to 48 MHz, featuring 512-KB dual-bank flash, 48-KB SRAM with ECC/parity split, 24-bit Sigma-Delta ADC (4-channel), 12-bit ADC (2-channel), and integrated Segment LCD controller supporting up to 45 segments × 4 commons - deployed in industrial metering, portable medical sensors, and low-power HMI systems.
For engineers reviewing the R7FA6T2AB3CFL#AA0 datasheet, R7FA6T2AB3CFL#AA0 pinout, R7FA6T2AB3CFL#AA0 application, or R7FA6T2AB3CFL#AA0 equivalent, key selection criteria include its 100-pin LQFP package with 5-V-tolerant I/O, independent RTC power domain, AES-128/256 encryption engine, and SDADC24's 7.813 kHz sampling rate with programmable gain amplifier for high-resolution sensor interfacing.
Technical Context
The R7FA6T2AB3CFL#AA0 implements an Armv8-M architecture core with Memory Protection Unit (8 regions), debug via SW-DP, and deterministic real-time execution enabled by Event Link Controller (ELC) and Data Transfer Controller (DTC). Its dual-bank flash supports Bank Swap for seamless firmware updates without runtime interruption.
Analog subsystem integration includes two independent A/D converters: the 12-bit ADC12 (2-channel, internal reference or temperature sensor input) and the 24-bit SDADC24 (4-channel differential/single-ended, PLL-multiplied 32.768 kHz clock source), both feeding into dedicated interrupt-driven result registers with phase adjustment and digital filtering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M23 @ 48 MHz, Armv8-M, MPU with 8 regions |
| Memory | 512-KB dual-bank code flash (256 KB × 2), 8-KB data flash (100k P/E cycles), 48-KB SRAM (32 KB parity + 16 KB ECC) |
| ADC | 24-bit Sigma-Delta (SDADC24, 4 ch, 7.813 kHz max sampling), 12-bit SAR (ADC12, 2 ch, internal ref/TSN) |
| LCD Driver | Segment LCD controller (SLCDC): 45 seg × 4 com or 41 seg × 8 com, internal boost/cap-split/ext-resistor modes |
| Clock Sources | MOSC (1–20 MHz), SOSC (32.768 kHz), HOCO (24/32/48/64 MHz), PLL for SDADC24 (12.0/12.8 MHz) |
| Security | AES-128/256 (ECB/CBC/CTR/GCM/CMAC/CCM), TRNG, CAC, CRC, DOC, register write protection |
| Power & Temp | VCC = 1.6–5.5 V; operating range −40°C to +105°C; 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 finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual-domain power: VCC powers digital/analog logic; VSS is common ground reference for all domains |
| XCIN / XCOUT | Sub-clock oscillator interface | Connects 32.768 kHz crystal for independent RTC and SDADC24 clock source; enables calendar mode with alarm |
| ANIP0–ANIP3 / ANIN0–ANIN3 | SDADC24 analog inputs | Differential pair inputs for 4-channel 24-bit sigma-delta conversion; PGA gain configurable per channel |
| SEG0–SEG44 / COM0–COM7 | LCD segment/common drivers | Direct drive outputs for up to 45 segments and 4 commons (or 41 seg × 8 com); supports blink, waveform A/B selection |
| SWDIO / SWCLK | Debug interface | 2-pin Serial Wire Debug (SW-DP) for programming, trace, and real-time debugging without halting CPU |
| P001 / P002 | ADC reference pins | VREFH0/VREFL0 for ADC12; must connect to AVCC/AVSS if external reference not used |
Key Features
| Feature | Design Value |
|---|---|
| Bank Swap Flash | Enables zero-downtime firmware updates by switching active code bank during runtime via software trigger |
| Memory Mirror Function (MMF) | Maps application image load address to fixed link address in 23-bit mirror space - simplifies bootloader development and relocation |
| SDADC24 Clock Independence | PLL-derived 12.0/12.8 MHz clock for SDADC24 ensures stable high-resolution conversion even when main system clock is gated or scaled |
| Independent Power RTC | VRTC domain powers RTC, SOSC, and RTCICn inputs separately - retains calendar, alarm, and correction across main power loss |
| ELC + DTC Co-processing | Event Link Controller triggers DTC transfers directly from peripheral events (e.g., ADC completion → DMA → memory), eliminating CPU polling overhead |
Applications
| Industrial Energy Metering | Portable Medical Sensor Hub |
|---|---|
Use Scenario: Three-phase electricity meter with harmonic analysis, tamper detection, and local LCD display. IC Role / Device Role / Timing Role: Primary MCU executing metrology algorithms, managing SDADC24 oversampling at 7.813 kHz, driving 45-segment LCD, and maintaining RTC-backed billing timestamps. Use Value: Dual-bank flash enables field-upgradable firmware; ECC SRAM ensures data integrity during long-term logging; 5-V-tolerant I/O interfaces directly with legacy metering ICs. |
Use Scenario: Battery-powered wearable ECG/temperature monitor with on-device signal conditioning and local display. IC Role / Device Role / Timing Role: Signal acquisition MCU acquiring differential biopotential signals via SDADC24, applying digital filtering, storing results in ECC-protected SRAM, and updating segmented LCD every 2 seconds. Use Value: Ultra-low-power operation down to 1.6 V extends battery life; independent RTC maintains time-of-event stamps during sleep; TRNG seeds secure BLE pairing. |
| Smart Building HVAC Controller | Low-Power Industrial HMI Panel |
Use Scenario: DIN-rail mounted HVAC node monitoring temperature, humidity, CO₂, and valve position while communicating via Modbus RTU over SCI. IC Role / Device Role / Timing Role: System controller running real-time PID loops, reading 2-channel ADC12 (temp/humidity) and SDADC24 (CO₂ sensor bridge), and managing 4-ch relay outputs via GPT PWM. Use Value: 48 MHz M23 core delivers sufficient compute headroom for multi-sensor fusion; LVD monitors VCC and EXLVDVBAT to detect brown-out and backup battery depletion. |
Use Scenario: Factory-floor operator panel displaying machine status, alarms, and setpoints using monochrome segment LCD. IC Role / Device Role / Timing Role: Dedicated HMI controller driving 41-segment × 8-common LCD, scanning tactile buttons via GPIO, and communicating with PLC via I²C or SCI. Use Value: Integrated SLCDC eliminates external LCD driver IC; 5-V-tolerant I/O interfaces directly with 5 V button matrices and indicator LEDs; AGT timers handle debouncing without CPU load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA6T2AB3CFP | Same RA2A2 family, identical 100-pin LQFP package and 512-KB flash, but uses standard tray packing (no #AA0 suffix); lacks production identification code for traceability-critical programs | Targeted at cost-sensitive volume production where full traceability and Renesas factory-programmed security keys are not required | Select R7FA6T2AB3CFP only when BOM-level traceability and pre-provisioned secure boot keys are unnecessary |
| R7FA4M2AB3CFL#AA0 | RA4M2 family part: Cortex-M33 core, 100 MHz, 512-KB flash, but no SDADC24 or SLCDC; adds USB FS, more GPT channels, and enhanced crypto accelerators | Suitable for higher-performance control applications requiring USB connectivity or advanced motor control, but cannot replace R7FA6T2AB3CFL#AA0 in SDADC24- or LCD-dependent designs | Choose R7FA4M2AB3CFL#AA0 only when migrating to M33 architecture and abandoning 24-bit sigma-delta or segment LCD requirements |
Compared with R7FA6T2AB3CFP, the R7FA6T2AB3CFL#AA0 provides full production traceability and factory-configured security features; compared with R7FA4M2AB3CFL#AA0, it retains essential analog front-end and HMI peripherals at lower power and cost - making it irreplaceable for precision sensor + LCD edge nodes.
Availability
R7FA6T2AB3CFL#AA0 is available at Aetrix Electronics and suitable for industrial energy metering, portable medical sensor hubs, and smart building HVAC controllers requiring stable component supply across extended product lifecycles.
Supply support for R7FA6T2AB3CFL#AA0 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 the R7FA6T2AB3CFL#AA0 - was designed for ultra-low-power, high-integration applications demanding precision analog sensing, secure firmware execution, and integrated human-machine interface capabilities in harsh industrial environments.
FAQ
What is the maximum sampling rate of the 24-bit Sigma-Delta ADC in the R7FA6T2AB3CFL#AA0?
The R7FA6T2AB3CFL#AA0's SDADC24 supports a maximum sampling rate of 7.813 kHz in its high-speed mode, achieved using the 12.0 MHz PLL clock derived from the 32.768 kHz sub-clock oscillator. This rate applies specifically to the 4-channel variant (denoted by 'B' in the part number) and enables high-resolution measurement of slow-varying sensor signals such as strain gauges or thermopiles without external oversampling hardware.
Does the R7FA6T2AB3CFL#AA0 support Bank Swap for firmware updates?
Yes, the R7FA6T2AB3CFL#AA0 supports Bank Swap functionality across its 512-KB dual-bank flash memory (256 KB × 2 banks). This allows one bank to execute active firmware while the other receives and validates a new image, enabling safe, atomic firmware updates without system downtime - critical for remote or safety-monitored deployments where reboot windows are constrained.
What LCD configuration does the R7FA6T2AB3CFL#AA0 support in its 100-pin LQFP package?
In its 100-pin LQFP package, the R7FA6T2AB3CFL#AA0's Segment LCD Controller (SLCDC) supports two configurations: 45 segment outputs with 4 common outputs (when 8-com mode is disabled), or 41 segment outputs with 8 common outputs (when 8-com mode is enabled). Both modes support internal voltage boosting, capacitor-split, or external resistor-divider biasing, and selectable waveform A/B for optimized contrast and power efficiency.
How is the independent power supply RTC implemented in the R7FA6T2AB3CFL#AA0?
The R7FA6T2AB3CFL#AA0 implements an independent power supply RTC using the VRTC pin, which accepts a separate backup power source (e.g., coin cell or supercapacitor). This domain powers the sub-clock oscillator (SOSC), RTC counter, calendar logic, and RTCICn event capture inputs - ensuring continuous timekeeping, alarm generation, and clock correction even when main VCC is removed or browned out.
What security features are factory-enabled on the R7FA6T2AB3CFL#AA0?
The R7FA6T2AB3CFL#AA0 ships with AES-128/256 cryptographic acceleration, True Random Number Generator (TRNG), Clock Frequency Accuracy Measurement Circuit (CAC), and register write protection pre-configured and verified. The #AA0 suffix indicates Renesas factory programming of unique device identifiers and optional secure boot keys - providing foundational trust anchors for secure firmware authentication and encrypted communication stack implementation.
R7FA6T2AB3CFL#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- 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:
- 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 10x12b SAR; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA6T2AB3CFL#AA0 FAQ
1.How can I place an order for R7FA6T2AB3CFL#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA6T2AB3CFL#AA0 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 R7FA6T2AB3CFL#AA0 reliable?
The price and inventory of R7FA6T2AB3CFL#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA6T2AB3CFL#AA0 is usually 5 days.
3.What payment methods are accepted for R7FA6T2AB3CFL#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA6T2AB3CFL#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA6T2AB3CFL#AA0?
R7FA6T2AB3CFL#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA6T2AB3CFL#AA0 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 R7FA6T2AB3CFL#AA0?
For technical support, including R7FA6T2AB3CFL#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA6T2AB3CFL#AA0 requirements.
6.How does Aetrix verify that R7FA6T2AB3CFL#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FA6T2AB3CFL#AA0 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 R7FA6T2AB3CFL#AA0 meets industry standards.
7.What is the process for return or replacement of R7FA6T2AB3CFL#AA0?
All R7FA6T2AB3CFL#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA6T2AB3CFL#AA0, 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 R7FA6T2AB3CFL#AA0 part is unused and in its original packaging.
Return procedure for R7FA6T2AB3CFL#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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