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Renesas R7FA2A1AB3CNE#AA0
- Part No.:
- R7FA2A1AB3CNE#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R7FA2A1AB3CNE#AA0.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 48HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:420
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Product details
Overview
R7FA2A1AB3CNE#AA0 from Renesas Electronics is an Arm Cortex-M23-based 32-bit microcontroller designed for low-power, cost-sensitive industrial and human-machine interface applications. It operates at up to 48 MHz, integrates 256 KB code flash, 32 KB SRAM, dual ADCs (16-bit SAR and 24-bit sigma-delta), USB 2.0 Full-Speed with on-chip transceiver, CAN 2.0B, and Capacitive Touch Sensing Unit (CTSU) - enabling compact, secure, sensor-rich edge nodes.
For engineers reviewing the R7FA2A1AB3CNE#AA0 datasheet, R7FA2A1AB3CNE#AA0 pinout, R7FA2A1AB3CNE#AA0 application, or R7FA2A1AB3CNE#AA0 equivalent, key selection considerations include its 48-pin QFN package, -40°C to +105°C operating range, integrated analog front-end (OPAMP ×3, DAC12/DAC8 ×2, TSN), hardware security (AES128/256, TRNG), and safety features (ECC SRAM, IWDT, CAC).
Technical Context
The R7FA2A1AB3CNE#AA0 implements the Armv8-M architecture with TrustZone-enabled Cortex-M23 core, supporting memory protection via 8-region MPU and dual watchdogs (WDT + independent IWDT). Its clock system includes HOCO (up to 48 MHz), SOSC (32.768 kHz), and trimmable oscillators for precision timing across voltage ranges (1.6–5.5 V).
Analog subsystem integration includes ADC16 (1.2 Msps, 17-channel), SDADC24 (15.6 ksps, PGA-equipped), and configurable OPAMPs with switch matrices - all coordinated via Event Link Controller (ELC) to enable autonomous signal chain operation without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M23, 48 MHz max - enables real-time deterministic control with TrustZone security isolation. |
| Memory | 256 KB code flash + 8 KB data flash + 32 KB SRAM (16 KB ECC + 16 KB parity) - supports robust firmware updates and data logging. |
| ADC | 16-bit SAR ADC (1.2 Msps, 12 channels) + 24-bit sigma-delta ADC (15.6 ksps, 6 channels) - delivers high-resolution sensor acquisition with programmable gain. |
| Connectivity | CAN 2.0B (32 mailboxes), USB 2.0 FS (with internal transceiver & BC1.2 support), SCI ×3, I2C ×2, SPI ×2 - enables mixed-protocol industrial communication. |
| Analog Peripherals | DAC12 ×1, DAC8 ×2, OPAMP ×3, ACMPHS ×1, ACMPLP ×2, TSN - forms complete analog signal conditioning and feedback path. |
| Package & Temp | 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), -40°C to +105°C - suitable for space-constrained, thermally demanding environments. |
| Security | AES128/256 engine + True Random Number Generator (TRNG) - provides cryptographic acceleration and entropy for secure boot and key generation. |
Pinout & Package
Package: 48-pin QFN (PWQN0048KB-A), 7 mm × 7 mm, 0.5 mm pitch, exposed thermal pad. Pin count and I/O allocation match RA2A1 Group specification for R7FA2A1AB3CNE: 30 I/O pins, 3 input-only, 28 pull-up resistors, 17 N-ch open-drain outputs, 6 5-V tolerant pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual-domain power pins: VCC powers digital logic; AVCC0/AVSS0 required separately for analog peripherals to ensure noise immunity. |
| USB_DP / USB_DM | USB differential data | Integrated full-speed transceiver eliminates external PHY; requires 1.5-kΩ pull-up on DP for device enumeration. |
| CTX0 / CRX0 | CAN transmit/receive | Direct connection to CAN bus via external transceiver; supports ISO 11898-1 compliant messaging with mailbox FIFO mode. |
| GTIOC0A–GTIOC6B | PWM I/O | Configurable general-purpose timer outputs for motor control (BLDC U/V/W phase) or LED dimming with dead-time insertion. |
| CTSU_Sx | Capacitive touch channel | 26-channel CTSU supports self- and mutual-capacitance sensing; dedicated pins enable robust proximity/touch detection without external components. |
| ADC16_IN0–IN11 | Analog input | 12 single-ended or 4 differential inputs routed to 16-bit SAR ADC; reference selectable from internal VREF, TSN, or SDADC24 output. |
Key Features
| Feature | Design Value |
|---|---|
| Memory Mirror Function (MMF) | Enables seamless firmware update by mapping load address in flash to link address in mirrored memory space - no runtime relocation required. |
| Event Link Controller (ELC) | Hardware routing of peripheral events (e.g., ADC EOC → DMA trigger → CTSU scan start) eliminates CPU polling and reduces latency. |
| Operational Amplifier Switch Matrix | Each of 3 OPAMPs has configurable input routing and OPAMP0 supports output pin selection - simplifies analog signal path reconfiguration in firmware. |
| Low-Power Analog Comparators | ACMPLP ×2 with software-selectable speed modes (high/low current) - enables adaptive wake-up from deep sleep based on analog thresholds. |
| Clock Frequency Accuracy Measurement (CAC) | Measures HOCO/MOCO/LOCO accuracy against SOSC reference and generates interrupt on deviation - critical for time-critical USB/CAN synchronization. |
Applications
| Industrial Sensor Node | Smart Home Control Panel |
|---|---|
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and gas concentration in factory settings. IC Role / Device Role / Timing Role: Central controller managing multi-sensor acquisition (ADC16 + SDADC24), local processing, CAN bus reporting, and ultra-low-power sleep scheduling via AGT timers. Use Value: Integrated TSN, dual ADCs, and 105°C rating eliminate external signal conditioning and enable direct die-temperature compensation in harsh environments. | Use Scenario: Touch-enabled wall-mounted HVAC controller with display backlight dimming and relay actuation. IC Role / Device Role / Timing Role: HMI processor handling capacitive touch (CTSU), PWM-driven LED dimming (GPT), relay control (GPIO), and USB-CDC configuration interface. Use Value: On-chip USB transceiver and CTSU reduce BOM count; DAC8 outputs drive analog backlight control without external DAC. |
| Medical Vital Sign Monitor | Automotive Body Control Module |
Use Scenario: Portable pulse oximeter acquiring photoplethysmography (PPG) signals with analog front-end filtering and digitization. IC Role / Device Role / Timing Role: Analog signal conditioner using OPAMP ×3 (transimpedance + filtering), SDADC24 (24-bit resolution), and DAC12 (reference biasing) - all synchronized via ELC. Use Value: Sigma-delta ADC's 15.6 ksps sampling and PGA support high-SNR PPG acquisition; TRNG enables secure patient data encryption. | Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting with LIN/UART diagnostics. IC Role / Device Role / Timing Role: CAN node interfacing with vehicle network while locally managing brushed DC motors (GPT PWM), analog sensors (ADC16), and EEPROM-less data logging (data flash). Use Value: 8 KB data flash endurance (100,000 P/E cycles) supports reliable parameter storage; 5-V tolerant GPIOs interface directly with legacy automotive signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FA2A1AB3CFM | 64-pin LQFP package, 46 GPIOs, full 17-channel ADC16 and 8-channel SDADC24 support - no pin-to-pin compatibility with R7FA2A1AB3CNE#AA0. | Higher I/O count and analog channel count suit complex HMI or multi-sensor gateway designs where board space allows larger package. | Select when needing maximum peripheral channel count and standard LQFP assembly compatibility over QFN miniaturization. |
| R7FA2E1A93CNE | Same 48-pin QFN package and pinout; Cortex-M23 core at 48 MHz but reduced memory (128 KB flash, 16 KB SRAM) and no CAN or USBFS modules. | Targeted at cost-optimized, non-networked sensor endpoints where CAN/USB are unnecessary and flash footprint is constrained. | Choose for simplified, lower-cost variants where R7FA2A1AB3CNE#AA0's full feature set exceeds requirements - verified pin-compatible alternative. |
Compared with R7FA2A1AB3CNE#AA0, R7FA2A1AB3CFM offers expanded I/O and analog resources in a larger LQFP package, while R7FA2E1A93CNE provides identical QFN pinout and core performance at reduced memory and peripheral count - enabling scalable platform design across performance tiers.
Availability
R7FA2A1AB3CNE#AA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart home control panels, medical vital sign monitors, and automotive body control modules requiring stable component supply across extended temperature ranges.
Supply support for R7FA2A1AB3CNE#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 industrial, automotive, and enterprise markets.
The RA2A1 Group, including R7FA2A1AB3CNE#AA0, was designed for ultra-low-power, cost-sensitive embedded applications requiring rich analog integration, USB connectivity, and functional safety features - targeting smart sensors and HMI devices.
FAQ
What is the maximum operating frequency and core architecture of the R7FA2A1AB3CNE#AA0?
The R7FA2A1AB3CNE#AA0 features an Arm Cortex-M23 core compliant with the Armv8-M architecture and operates at a maximum frequency of 48 MHz. This core includes TrustZone security extensions, an 8-region Memory Protection Unit (MPU), and debug support via SW-DP. The R7FA2A1AB3CNE#AA0 achieves deterministic real-time performance while maintaining low power consumption - essential for battery-operated and thermally constrained applications.
Does the R7FA2A1AB3CNE#AA0 support USB device functionality without external components?
Yes, the R7FA2A1AB3CNE#AA0 integrates a USB 2.0 Full-Speed transceiver with an internal LDO regulator, enabling standalone USB device operation. It supports USB Battery Charging Specification 1.2 and provides five configurable pipes. No external PHY or level-shifting components are required - only standard USB termination (1.5-kΩ pull-up on DP) and proper PCB layout per Renesas guidelines are needed to implement USB CDC or HID functions with R7FA2A1AB3CNE#AA0.
How many analog-to-digital converters does the R7FA2A1AB3CNE#AA0 include, and what are their key specifications?
The R7FA2A1AB3CNE#AA0 integrates two independent ADCs: a 16-bit successive approximation (SAR) ADC (ADC16) with 1.2 Msps sampling rate and up to 12 input channels, and a 24-bit sigma-delta ADC (SDADC24) with 15.6 ksps and up to 6 input channels. Both support differential and single-ended modes, programmable gain (SDADC24), and calibration for offset/gain error - enabling high-accuracy sensor measurement across R7FA2A1AB3CNE#AA0-based designs.
What safety and reliability features are implemented in the R7FA2A1AB3CNE#AA0?
The R7FA2A1AB3CNE#AA0 includes ECC for 16 KB of SRAM, parity checking for the remaining 16 KB, independent watchdog timer (IWDT) with dedicated oscillator, Clock Frequency Accuracy Measurement (CAC), SRAM/flash error detection, register write protection, and illegal memory access monitoring. These features collectively support IEC 61508 SIL2 and ISO 26262 ASIL-B readiness - making R7FA2A1AB3CNE#AA0 suitable for industrial control and automotive body electronics where functional safety is required.
Is the R7FA2A1AB3CNE#AA0 pin-compatible with other members of the RA2A1 family?
No, the R7FA2A1AB3CNE#AA0 is not universally pin-compatible across the RA2A1 family. While it shares the same 48-pin QFN footprint with R7FA2E1A93CNE (verified pin-compatible), it differs from R7FA2A1AB3CFM (64-pin LQFP) and R7FA2A1AB3CNF (40-pin QFN) in pin count, signal assignment, and peripheral channel availability. Always consult the specific pin function tables and package drawings for R7FA2A1AB3CNE#AA0 before migration or replacement.
R7FA2A1AB3CNE#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-WFQFN Exposed Pad
- Series:
- RA2A1
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M23
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, SCI, SPI, UART/USART, USB
- Peripherals:
- Capacitive Touch, DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 30
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 12x16b, 7x24b SAR, Sigma-Delta; D/A 2x8b, 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FA2A1AB3CNE#AA0 FAQ
1.How can I place an order for R7FA2A1AB3CNE#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2A1AB3CNE#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 R7FA2A1AB3CNE#AA0 reliable?
The price and inventory of R7FA2A1AB3CNE#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2A1AB3CNE#AA0 is usually 5 days.
3.What payment methods are accepted for R7FA2A1AB3CNE#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2A1AB3CNE#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2A1AB3CNE#AA0?
R7FA2A1AB3CNE#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2A1AB3CNE#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 R7FA2A1AB3CNE#AA0?
For technical support, including R7FA2A1AB3CNE#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2A1AB3CNE#AA0 requirements.
6.How does Aetrix verify that R7FA2A1AB3CNE#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FA2A1AB3CNE#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 R7FA2A1AB3CNE#AA0 meets industry standards.
7.What is the process for return or replacement of R7FA2A1AB3CNE#AA0?
All R7FA2A1AB3CNE#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2A1AB3CNE#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 R7FA2A1AB3CNE#AA0 part is unused and in its original packaging.
Return procedure for R7FA2A1AB3CNE#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FA2A1AB3CNE#AA0 Tags
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