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Renesas R7FA2A2AD3CFP#BA1
- Part No.:
- R7FA2A2AD3CFP#BA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
R7FA2A2AD3CFP#BA1.pdf
- Description:
- MCU RA2A2 ARM CM23 48MHZ 512K/48
- Quantity:
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Product details
Overview
R7FA2A2AD3CFP#BA1 from Renesas is an ultra-low-power 32-bit 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 (7-channel differential), 12-bit SAR ADC (4-channel), integrated segment LCD controller (45 seg × 4 com), and independent power supply RTC. It targets battery-powered industrial HMI, portable medical sensors, and smart utility meters requiring high-precision analog measurement and long-term timekeeping.
For engineers reviewing the R7FA2A2AD3CFP#BA1 datasheet, R7FA2A2AD3CFP#BA1 pinout, R7FA2A2AD3CFP#BA1 application, or R7FA2A2AD3CFP#BA1 equivalent, key selection criteria include its 7-channel SDADC24 with programmable gain amplifier, dual-bank flash for safe firmware updates, 100-pin LQFP package with 67 GPIOs, and hardware AES-128/256 + TRNG for secure edge node deployment.
Technical Context
The R7FA2A2AD3CFP#BA1 implements Armv8-M architecture with Memory Protection Unit (8 regions) and CoreSight™ MTB-M23 trace, enabling certified functional safety designs. Its analog subsystem integrates two independent A/D converters: a 24-bit Sigma-Delta ADC (SDADC24) with 7.813 kHz sampling and internal PLL clocking from 32.768 kHz SOSC, and a 12-bit SAR ADC (ADC12) with temperature sensor input.
Power management includes six low-voltage detectors (LVD0–LVD_VRTC), three low-power timer types (GPT16 × 6, AGT × 8, AGTW × 2), and Event Link Controller (ELC) for CPU-free peripheral coordination. Security relies on hardware AES engine (ECB/CBC/CTR/GCM/CMAC/CCM), True Random Number Generator, and CRC/DOC/MACL data integrity circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M23 @ 48 MHz max; supports Armv8-M security extensions and MPU for memory isolation. |
| Memory | 512-KB dual-bank code flash (256 KB × 2) enables bank-swap firmware updates without runtime interruption. |
| Analog Converters | 24-bit SDADC24 (7 ch diff/single) + 12-bit ADC12 (4 ch); TSN sensor feeds ADC12 for die temperature monitoring. |
| LCD Driver | Segment LCD controller supports 45 segments × 4 commons or 41 segments × 8 commons with internal voltage boosting. |
| Security | Hardware AES-128/256 (ECB/CBC/CTR/GCM/CMAC/CCM) + TRNG + ECC in 16-KB SRAM region. |
| Package & Temp | 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch); rated for -40°C to +105°C industrial operation. |
| I/O Count | 67 general-purpose I/O pins, including 3 input-only, 1 output-only, 5-V tolerant on 3 pins (RTCIC0–2). |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, tray-packed (#BA1 = tray). Pinout validated per Renesas R01DS0418EJ0130 Rev.1.30 Figure 1.3 and Table 1.14.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Core power / ground | Dual VCC pins (pins 26, 49) and multiple VSS (pins 25, 48, 75) enable low-noise power distribution for mixed-signal operation. |
| ANIP0–ANIP6 / ANIN0–ANIN6 | SDADC24 analog inputs | 7 differential pairs support precision weigh-scale or current-sense applications with PGA gain control and 24-bit resolution. |
| SEG0–SEG44 / COM0–COM7 | LCD segment/common outputs | Direct drive of 4-digit alphanumeric LCDs without external bias circuitry; VL1–VL4 configurable for contrast tuning. |
| SWDIO / SWCLK | Debug interface | 2-pin Serial Wire Debug enables in-circuit programming and real-time trace via standard ARM debug probes. |
| RTCIC0–RTCIC2 / VRTC | Independent RTC power domain | Enables calendar timekeeping and alarm functions during main power-off using coin-cell backup on VRTC pin. |
Key Features
| Feature | Design Value |
|---|---|
| 24-bit SDADC24 with PGA | 7-channel differential sigma-delta converter with programmable gain amplifier enables <1 µV RMS noise performance for strain-gauge or thermopile sensing. |
| Dual-bank flash with Bank Swap | Atomic firmware update capability: new image writes to inactive bank while active bank executes, eliminating boot-time downtime. |
| Independent Power Supply RTC | Calendar mode (2000–2099) with leap-year correction and VRTC-backed alarm/interrupt ensures accurate timekeeping during main power loss. |
| Hardware AES + TRNG | FIPS-compliant encryption acceleration and true entropy source enable secure OTA updates and device identity provisioning without software overhead. |
| Event Link Controller (ELC) | Configurable hardware routing between peripherals (e.g., SDADC24 EOC → AGT trigger → GPT PWM start) eliminates CPU polling latency. |
Applications
| Industrial HMI Panel | Portable Medical Sensor |
|---|---|
Use Scenario: Battery-powered handheld meter with 4-digit LCD display, push-button interface, and analog sensor inputs. IC Role / Device Role / Timing Role: Main system controller managing LCD refresh, SDADC24 acquisition, RTC timestamping, and button debouncing via AGT timers. Use Value: Integrated SLCDC and 24-bit SDADC24 eliminate external driver ICs and precision op-amps, reducing BOM cost by ≥$1.20/unit. | Use Scenario: Wearable blood oxygen saturation (SpO₂) monitor requiring low-noise photodiode signal conditioning and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: Analog front-end processor digitizing dual-wavelength LED/photodiode signals via SDADC24, then transmitting processed data over SCI UART to BLE SoC. Use Value: 24-bit resolution and built-in PGA allow direct connection of transimpedance amplifier outputs, avoiding external gain stages and improving SNR by 12 dB. |
| Smart Utility Meter | Low-Power Environmental Logger |
Use Scenario: DIN-rail mounted electricity meter with tamper detection, kWh accumulation, and LCD readout. IC Role / Device Role / Timing Role: Energy measurement co-processor interfacing with metrology IC via SPI, storing calibrated constants in data flash, and updating LCD every second via RTC interrupt. Use Value: Dual-bank flash allows field-upgradable tariff tables and firmware patches without meter replacement; ECC-protected SRAM prevents data corruption during brownouts. | Use Scenario: Solar-powered soil moisture and temperature logger deployed in remote agricultural fields for 5+ year operation. IC Role / Device Role / Timing Role: Ultra-low-power data aggregator sampling TSN and SDADC24 (capacitive moisture sensor) every 15 minutes, then waking radio only for scheduled transmission. Use Value: Sub-µA deep-sleep current (with RTC running on VRTC) extends battery life to >60 months; 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 |
|---|---|---|---|
| R7FA2A2BD3CFP | Same 100-pin LQFP package and core, but SDADC24 limited to 4 channels (vs. 7) and no SLCDC waveform B mode. | Suitable for simpler HMI or sensor nodes where fewer analog inputs and basic LCD drive suffice. | Select R7FA2A2BD3CFP when SDADC24 channel count and advanced LCD waveforms are not required-reduces cost by ~8%. |
| STM32L562VE | Arm Cortex-M33 core, 512-KB flash, 256-KB SRAM, but lacks integrated LCD driver and has only 16-bit ADC (no 24-bit SDADC). | Better for crypto-heavy applications needing TrustZone, but requires external LCD driver and external precision ADC for equivalent analog performance. | Choose STM32L562VE only if hardware TrustZone and larger SRAM are critical; R7FA2A2AD3CFP#BA1 delivers superior analog integration for sensor-centric designs. |
Compared with R7FA2A2BD3CFP and STM32L562VE, the R7FA2A2AD3CFP#BA1 uniquely combines 7-channel 24-bit SDADC24, segment LCD controller, and independent RTC in a single 100-pin package-enabling compact, low-BOM sensor HMI systems without external analog or display support ICs.
Availability
R7FA2A2AD3CFP#BA1 is available at Aetrix Electronics and suitable for industrial HMI panels, portable medical sensors, smart utility meters, environmental loggers, and battery-powered instrumentation requiring stable component supply across extended product lifecycles.
Supply support for R7FA2A2AD3CFP#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.
The RA2A2 Group is designed for ultra-low-power, high-integration applications demanding precision analog, secure firmware execution, and human-machine interface capabilities-targeting next-generation smart sensors and edge controllers.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2A2AD3CFP#BA1?
The R7FA2A2AD3CFP#BA1 features an Arm Cortex-M23 core compliant with Armv8-M architecture and operates at a maximum frequency of 48 MHz. It includes an Arm Memory Protection Unit (MPU) with 8 configurable regions and CoreSight™ MTB-M23 trace for debug visibility. This architecture enables certified functional safety implementations and efficient execution of real-time control algorithms within the R7FA2A2AD3CFP#BA1's power envelope.
Does the R7FA2A2AD3CFP#BA1 support secure firmware updates, and how is this implemented?
Yes, the R7FA2A2AD3CFP#BA1 supports secure firmware updates via its dual-bank 512-KB flash memory with Bank Swap functionality. The R7FA2A2AD3CFP#BA1 allows writing new firmware to the inactive bank while executing from the active bank, enabling atomic updates without system downtime. Combined with hardware AES encryption and TRNG, it secures update payloads against tampering and unauthorized access during download and installation.
How many analog input channels does the R7FA2A2AD3CFP#BA1 provide, and what are their key specifications?
The R7FA2A2AD3CFP#BA1 provides two independent analog subsystems: a 24-bit Sigma-Delta ADC (SDADC24) with up to 7 differential or single-ended channels, and a 12-bit SAR ADC (ADC12) with 4 channels. The SDADC24 supports 7.813 kHz sampling, internal PLL clocking from 32.768 kHz, and programmable gain amplifier-ideal for high-resolution sensor interfaces. The ADC12 includes dedicated inputs for the on-chip temperature sensor (TSN) and internal reference voltage.
What LCD driving capabilities does the R7FA2A2AD3CFP#BA1 offer, and which configurations are supported?
The R7FA2A2AD3CFP#BA1 integrates a Segment LCD Controller/Driver (SLCDC) supporting up to 45 segment outputs and 4 common outputs (or 41 segments × 8 commons). It offers selectable drive methods-including internal voltage boosting, capacitor split, and external resistance division-and supports waveform A or B for optimized contrast and power efficiency. These capabilities enable direct drive of multiplexed alphanumeric LCDs in the R7FA2A2AD3CFP#BA1-based designs without external bias generators.
What power supply and low-power features are available on the R7FA2A2AD3CFP#BA1?
The R7FA2A2AD3CFP#BA1 operates from 1.6 V to 5.5 V and includes six independent low-voltage detectors (LVD0–LVD_VRTC) with programmable thresholds. It supports multiple low-power modes, AGT/AGTW timers that operate asynchronously from main clocks, and an independent RTC powered by VRTC-enabling sub-µA sleep current while maintaining calendar time. These features make the R7FA2A2AD3CFP#BA1 ideal for battery-operated applications requiring multi-year operation.
R7FA2A2AD3CFP#BA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- -
- Core Size:
- -
- Speed:
- -
- Connectivity:
- -
- Peripherals:
- -
- Number of I/O:
- -
- Program Memory Size:
- -
- Program Memory Type:
- -
- EEPROM Size:
- -
- RAM Size:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Data Converters:
- -
- Oscillator Type:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
R7FA2A2AD3CFP#BA1 FAQ
1.How can I place an order for R7FA2A2AD3CFP#BA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2A2AD3CFP#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 R7FA2A2AD3CFP#BA1 reliable?
The price and inventory of R7FA2A2AD3CFP#BA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2A2AD3CFP#BA1 is usually 5 days.
3.What payment methods are accepted for R7FA2A2AD3CFP#BA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2A2AD3CFP#BA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2A2AD3CFP#BA1?
R7FA2A2AD3CFP#BA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2A2AD3CFP#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 R7FA2A2AD3CFP#BA1?
For technical support, including R7FA2A2AD3CFP#BA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2A2AD3CFP#BA1 requirements.
6.How does Aetrix verify that R7FA2A2AD3CFP#BA1 is sourced from the original manufacturer or authorized distributors?
All R7FA2A2AD3CFP#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 R7FA2A2AD3CFP#BA1 meets industry standards.
7.What is the process for return or replacement of R7FA2A2AD3CFP#BA1?
All R7FA2A2AD3CFP#BA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2A2AD3CFP#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 R7FA2A2AD3CFP#BA1 part is unused and in its original packaging.
Return procedure for R7FA2A2AD3CFP#BA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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