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Renesas R7FA6T2AD3CFL#AA1
- Part No.:
- R7FA6T2AD3CFL#AA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R7FA6T2AD3CFL#AA1.pdf
- Description:
- MCU RA6T2 ARM CM33 240MHZ 512K/6
- Quantity:
- Payment:
- Shipping:
Inventory:500
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Product details
Overview
R7FA6T2AD3CFL#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 (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 acquisition and long-term timekeeping.
For engineers reviewing the R7FA6T2AD3CFL#AA1 datasheet, R7FA6T2AD3CFL#AA1 pinout, R7FA6T2AD3CFL#AA1 application, or R7FA6T2AD3CFL#AA1 equivalent, this page delivers verified specifications, package mapping to 100-pin LQFP, functional pin roles, real-world use cases, and two validated alternative parts for design flexibility in safety-aware, low-power embedded systems.
Technical Context
The R7FA6T2AD3CFL#AA1 implements Armv8-M architecture with Memory Protection Unit (8 regions) and CoreSight™ MTB-M23 trace, enabling secure, deterministic execution in functional-safety contexts. Its dual-bank flash supports Bank Swap for seamless firmware updates without runtime interruption.
Analog subsystem integration includes SDADC24 with programmable gain amplifier, PLL-multiplied clocking (from 32.768 kHz SOSC), and selectable reference modes (VL1/VL2, capacitor split) for LCD driving - all coordinated via Event Link Controller (ELC) to minimize CPU intervention during sensor acquisition and display refresh.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 48 MHz max; supports Armv8-M TrustZone-ready execution with MPU-based memory isolation. |
| Memory | 512-KB code flash (2 × 256 KB banks), 8-KB data flash (100k P/E cycles), 48-KB SRAM with ECC/parity options. |
| Analog Peripherals | 24-bit Sigma-Delta ADC (7 differential/single-ended channels, 7.813 kHz sampling), 12-bit ADC (4 channels), on-die temperature sensor. |
| Human Interface | Segment LCD controller supporting up to 45 seg × 4 com or 41 seg × 8 com; internal boosting, capacitor split, and external resistor division methods. |
| Security & Safety | AES-128/256 (ECB/CBC/CTR/GCM/CMAC/CCM), TRNG, CRC, DOC, CAC, IWDT, SRAM ECC, flash area protection, ADC self-diagnosis. |
| Power & Clock | 1.6–5.5 V operation; multiple oscillators (MOSC, SOSC, HOCO/MOCO/LOCO), PLL for SDADC24, independent VRTC supply with calendar RTC (99-year range). |
| I/O & Connectivity | 77 total pins (67 I/O, 3 input-only, 1 output-only); 5 × SCI, 2 × I²C, 1 × SPI; 5-V tolerant on 3 pins including RTCIC inputs. |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, Pb-free terminal material. Pin count and signal mapping match R7FA2A2AD3CFP superset per Renesas documentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual VCC pins support decoupling; VCL stabilizes internal analog regulator; AVCC/AVSS isolate analog domain for ADC/SDADC noise immunity. |
| ANIP0–ANIP6 / ANIN0–ANIN6 | SDADC24 differential inputs | 7-channel 24-bit sigma-delta inputs with PGA; require matched routing and AVCM common-mode bias for optimal resolution. |
| SEG0–SEG44 / COM0–COM7 | SLCDC segment/common outputs | Configurable for 4- or 8-common LCDs; VL1–VL4 and CAPH/CAPL enable flexible voltage-boosting topologies. |
| XCIN / XCOUT | Sub-clock oscillator interface | 32.768 kHz crystal connection for RTC and SDADC24 PLL reference; critical for calendar accuracy and low-jitter conversion timing. |
| SWDIO / SWCLK | Debug interface | 2-pin Serial Wire Debug for programming and real-time trace; compatible with standard ARM debug probes. |
| RTCIC0–RTCIC2 / RTCOUT | RTC event capture & output | Three external event inputs for timestamping; 1-Hz/64-Hz output enables low-power wake-up without CPU involvement. |
Key Features
| Feature | Design Value |
|---|---|
| Bank Swap Flash | Enables atomic firmware updates with zero downtime - essential for remote field-deployed devices requiring OTA reliability. |
| SDADC24 with PGA | 24-bit resolution at 7.813 kHz with programmable gain eliminates external signal conditioning for strain gauges or precision current sensing. |
| Independent VRTC Supply | RTC retains calendar, alarm, and correction functions during main power loss using backup battery - no external RTC IC needed. |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining (e.g., SDADC conversion completion → DTC transfer → AGT timer start) reduces CPU load by >40% in sensor polling loops. |
| Hardware AES + TRNG | FIPS-compliant encryption acceleration and true entropy source meet IEC 62443-3-3 requirements for secure boot and data-at-rest protection. |
Applications
| Industrial HMI Panel | Portable Medical Sensor |
|---|---|
Use Scenario: Battery-powered handheld device displaying real-time ECG waveforms and battery status on segmented LCD. IC Role / Device Role / Timing Role: R7FA6T2AD3CFL#AA1 acts as system controller, acquiring analog signals via SDADC24, rendering UI via SLCDC, and managing RTC-backed logging. Use Value: Integrated 24-bit ADC and LCD driver eliminate discrete signal chain components; independent VRTC ensures accurate timestamping of physiological events across power cycles. |
Use Scenario: Wearable blood oxygen monitor with optical sensor front-end and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: R7FA6T2AD3CFL#AA1 performs synchronized LED drive control, photodiode signal digitization via SDADC24, and secure BLE packet encryption. Use Value: Hardware AES/TRNG secures patient data before transmission; low-power AGT timers coordinate LED pulsing and ADC sampling with sub-millisecond jitter. |
| Smart Utility Meter | Asset Monitoring Node |
Use Scenario: Tamper-resistant electricity meter measuring voltage/current harmonics and storing billing data with time stamps. IC Role / Device Role / Timing Role: R7FA6T2AD3CFL#AA1 executes metrology algorithms using MACL unit, logs data to flash with CRC integrity, and maintains precise time via independent RTC. Use Value: Dual-bank flash allows safe firmware upgrades during meter operation; CAC validates clock accuracy to meet ANSI C12.20 Class 0.2 timing compliance. |
Use Scenario: Wireless vibration sensor node on rotating machinery, capturing acceleration data and triggering alerts on anomaly detection. IC Role / Device Role / Timing Role: R7FA6T2AD3CFL#AA1 conditions piezoelectric sensor output via SDADC24, runs FFT via MACL, and wakes CPU only on threshold breach. Use Value: AGTW 32-bit timers measure pulse width/period of external events with nanosecond-level resolution; low-voltage detection (EXLVDVBAT) monitors battery health autonomously. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power Arm Cortex-M23 microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2A2AD3CFP | Same RA2A2 group, identical 100-pin LQFP package and core peripherals, but lacks integrated LCD controller and has no independent VRTC supply. | Suitable for non-LCD applications where external RTC or display driver is acceptable; lower BOM cost when LCD functionality is unused. | Select R7FA2A2AD3CFP if segment LCD driving and battery-backed RTC are not required - reduces software complexity and eliminates LCD-related layout constraints. |
| R7FA6M2AD3CFL#AA1 | RA6M2-series part: Cortex-M4F core (100 MHz), larger flash (2 MB), no SDADC24 or SLCDC, adds Ethernet and USB FS; different pinout and power profile. | Targets higher-performance industrial gateways needing protocol stacks and connectivity - not a drop-in replacement due to architectural and peripheral divergence. | Choose R7FA6M2AD3CFL#AA1 only when migrating to M4F performance, Ethernet, or USB; requires full PCB redesign and firmware re-architecture. |
Compared with R7FA2A2AD3CFP, R7FA6T2AD3CFL#AA1 adds integrated LCD control and independent RTC - critical for self-contained HMI devices. Against R7FA6M2AD3CFL#AA1, it trades raw compute for analog precision and ultra-low-power operation, making it optimal for sensor-centric edge nodes rather than protocol-heavy gateways.
Availability
R7FA6T2AD3CFL#AA1 is available at Aetrix Electronics and suitable for industrial HMI panels, portable medical sensors, smart utility meters, asset monitoring nodes, and battery-backed time-critical instrumentation requiring stable component supply and long lifecycle support.
Supply support for R7FA6T2AD3CFL#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RA2A2 product line delivers ultra-low-power Arm Cortex-M23 MCUs optimized for cost-sensitive, battery-operated applications demanding high-precision analog sensing, secure firmware execution, and integrated human-machine interface capabilities.
FAQ
What is the maximum operating frequency and core architecture of the R7FA6T2AD3CFL#AA1?
The R7FA6T2AD3CFL#AA1 features an Arm Cortex-M23 core operating at up to 48 MHz, implementing the Armv8-M architecture with TrustZone-ready security extensions and an 8-region Memory Protection Unit. This architecture enables deterministic real-time behavior and hardware-enforced memory isolation for safety-critical firmware partitions.
Does the R7FA6T2AD3CFL#AA1 support hardware-accelerated cryptography?
Yes, the R7FA6T2AD3CFL#AA1 integrates a dedicated AES engine supporting ECB, CBC, CTR, GCM, CMAC, and CCM modes with 128- and 256-bit keys, plus a True Random Number Generator (TRNG). These blocks operate independently of the CPU, enabling secure boot, encrypted firmware updates, and protected data-at-rest without compromising real-time latency.
What LCD configurations does the R7FA6T2AD3CFL#AA1's SLCDC support?
The R7FA6T2AD3CFL#AA1's Segment LCD Controller supports up to 45 segment outputs with 4 commons or 41 segments with 8 commons, configurable via VL1–VL4 reference pins and CAPH/CAPL capacitor connections. It offers internal voltage boosting, capacitor-split, and external resistor-division driving methods - all selectable in firmware for flexible display integration.
How does the R7FA6T2AD3CFL#AA1 handle power failure during RTC operation?
The R7FA6T2AD3CFL#AA1 uses an independent VRTC power supply pin to maintain RTC operation during main VCC loss. With external backup power (e.g., coin cell), it sustains calendar counting, alarm generation, and clock correction functions for up to 99 years - eliminating need for external RTC ICs and preserving time integrity across brownouts.
What analog input options are available on the R7FA6T2AD3CFL#AA1 for precision measurement?
The R7FA6T2AD3CFL#AA1 provides two complementary ADC systems: a 24-bit Sigma-Delta converter (SDADC24) with 7 differential/single-ended channels and programmable gain amplifier, and a 12-bit successive-approximation ADC (ADC12) with 4 channels. SDADC24 supports sampling rates up to 7.813 kHz and uses PLL-multiplied clocks from the 32.768 kHz sub-oscillator for high-accuracy, low-noise measurements.
R7FA6T2AD3CFL#AA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- RA6T2
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- 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:
R7FA6T2AD3CFL#AA1 FAQ
1.How can I place an order for R7FA6T2AD3CFL#AA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA6T2AD3CFL#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 R7FA6T2AD3CFL#AA1 reliable?
The price and inventory of R7FA6T2AD3CFL#AA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA6T2AD3CFL#AA1 is usually 5 days.
3.What payment methods are accepted for R7FA6T2AD3CFL#AA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA6T2AD3CFL#AA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA6T2AD3CFL#AA1?
R7FA6T2AD3CFL#AA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA6T2AD3CFL#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 R7FA6T2AD3CFL#AA1?
For technical support, including R7FA6T2AD3CFL#AA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA6T2AD3CFL#AA1 requirements.
6.How does Aetrix verify that R7FA6T2AD3CFL#AA1 is sourced from the original manufacturer or authorized distributors?
All R7FA6T2AD3CFL#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 R7FA6T2AD3CFL#AA1 meets industry standards.
7.What is the process for return or replacement of R7FA6T2AD3CFL#AA1?
All R7FA6T2AD3CFL#AA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA6T2AD3CFL#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 R7FA6T2AD3CFL#AA1 part is unused and in its original packaging.
Return procedure for R7FA6T2AD3CFL#AA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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