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Renesas R7FA2A1AB3CNE#AC0
- Part No.:
- R7FA2A1AB3CNE#AC0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R7FA2A1AB3CNE#AC0.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 48HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:287
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Product details
Overview
R7FA2A1AB3CNE#AC0 from Renesas Electronics is an Arm Cortex-M23-based 32-bit microcontroller with 48 MHz maximum clock, 256 KB code flash, 32 KB SRAM, and integrated analog peripherals including 16-bit ADC, 24-bit sigma-delta ADC, dual DACs, three op-amps, and capacitive touch sensing-designed for low-power industrial HMI and sensor interface applications.
For engineers reviewing the R7FA2A1AB3CNE#AC0 datasheet, R7FA2A1AB3CNE#AC0 pinout, R7FA2A1AB3CNE#AC0 application, or R7FA2A1AB3CNE#AC0 equivalent, key selection considerations include its 48-pin QFN package, -40°C to +105°C operating range, USB FS with battery charging support, CAN 2.0B compliance, and dual ADC architecture enabling simultaneous high-resolution and high-speed signal acquisition.
Technical Context
The R7FA2A1AB3CNE#AC0 implements the Armv8-M architecture with Memory Protection Unit (MPU) and CoreSight™ debug infrastructure, supporting secure, deterministic real-time operation. Its system-level features include Event Link Controller (ELC) for peripheral-to-peripheral event routing without CPU intervention and Data Transfer Controller (DTC) for autonomous memory transfers triggered by interrupts.
Analog subsystem integration includes a programmable gain instrumentation amplifier feeding the SDADC24, configurable OPAMP routing with internal switch matrices, and independent high-speed/low-power comparators. The MCU supports multiple clock sources-including HOCO (up to 48 MHz), SOSC (32.768 kHz), and LVD with software-selectable thresholds-to enable adaptive power management across operational modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M23, 48 MHz max - enables deterministic real-time control with TrustZone security extensions |
| Memory | 256 KB code flash + 8 KB data flash + 32 KB SRAM - supports firmware updates, parameter storage, and real-time buffering |
| Analog Converters | 16-bit ADC16 (1.2 Msps) + 24-bit SDADC24 (15.6 ksps) - allows concurrent high-speed and high-precision sensor sampling |
| DACs | DAC12 (12-bit) + dual DAC8 (8-bit) - provides flexible analog output for calibration, biasing, and waveform generation |
| Connectivity | CAN 2.0B, USB 2.0 Full-Speed (with on-chip transceiver & BC 1.2), 3× SCI, 2× I2C, 2× SPI - enables robust industrial bus communication and host connectivity |
| Package | 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch) - compact footprint suitable for space-constrained industrial modules |
| Operating Range | -40°C to +105°C - qualified for extended temperature environments in motor drives and factory automation |
Pinout & Package
Package: 48-pin QFN (PWQN0048KB-A), 7 mm × 7 mm, 0.5 mm pitch, exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual-domain power pins requiring local 0.1-μF decoupling; VCL supports internal LDO stabilization |
| USB_DP / USB_DM | USB differential data lines | Integrated full-speed transceiver with internal termination; no external PHY required |
| CTX0 / CRX0 | CAN transmit/receive | Direct connection to CAN bus via external transceiver; supports ISO 11898-1 compliant messaging |
| ADC16_IN0–IN11 | Analog input channels | 12 single-ended or 3 differential inputs mapped to 16-bit successive-approximation converter |
| SDADC24_IN0–IN4 | Sigma-delta analog inputs | 5 single-ended or 2 differential inputs routed through programmable gain amplifier for high-resolution measurement |
| GTIOC0A–GTIOC6B | PWM capture/compare outputs | 14-channel timer I/O supporting brushless DC motor control with complementary PWM and dead-time insertion |
| CTSU_RX0–RX15 | Capacitive touch sense electrodes | 16-channel CTSU interface enabling proximity and touch detection without external components |
Key Features
| Feature | Design Value |
|---|---|
| Memory Mirror Function (MMF) | Enables application image relocation in flash without re-linking; simplifies OTA update implementation |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining (e.g., ADC conversion completion → DMA transfer → CRC calculation) reduces CPU load |
| Operational Amplifier Switch Matrix | Configurable internal routing of OPAMP inputs/outputs allows flexible signal conditioning topologies without PCB redesign |
| USB Battery Charging 1.2 | Supports D+–D− voltage detection for dedicated charging port identification; eliminates need for external BC detection IC |
| Security Accelerators | AES128/256 engine + TRNG enable secure boot, encrypted firmware storage, and cryptographic key generation |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
Use Scenario: Touch-enabled operator interface for PLC-connected machinery with real-time status display and configuration. IC Role / Device Role / Timing Role: Main controller executing GUI logic, managing CTSU touch events, driving display via SPI, and communicating over CAN/USB. Use Value: Integrated CTSU eliminates external touch controller; dual ADCs allow simultaneous reading of panel temperature (SDADC24) and button voltage (ADC16). | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and gas concentration in HVAC ducts. IC Role / Device Role / Timing Role: Low-power sensor fusion hub acquiring analog signals, performing local calibration, and transmitting data via USB or CAN. Use Value: 105°C rating ensures reliability near heat sources; ultra-low-power AGT timers enable precise wake-up scheduling between sensor reads. |
| Motor Control Gateway | Energy Meter Interface |
Use Scenario: Compact gateway translating Modbus RTU over RS-485 to CAN bus for BLDC motor drives in packaging equipment. IC Role / Device Role / Timing Role: Protocol bridge with real-time GPT-driven PWM generation, CAN message handling, and SCI-based serial communication. Use Value: Six GPT16 channels support three-phase motor control with complementary outputs; ELC links ADC current sampling to DTC-triggered filtering. | Use Scenario: Tamper-resistant utility meter front-end interfacing shunt-based current sensors and optical pulse outputs. IC Role / Device Role / Timing Role: High-accuracy metrology processor performing 24-bit sigma-delta conversion, CRC-protected data logging, and secure AES-encrypted communication. Use Value: SDADC24's 15.6 ksps sampling with SINC3 filter meets Class 0.5 accuracy requirements; ECC-protected SRAM prevents corruption of critical calibration data. |
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, 26-channel CTSU | Higher I/O count and analog channel density for complex HMI or multi-sensor systems | Select when board layout accommodates larger footprint and requires expanded peripheral access |
| R7FA2A1AB3CNF | 40-pin QFN, 22 GPIOs, reduced ADC16 (8 channels), 11-channel CTSU | Lower-cost option for simpler touch interfaces or sensor nodes with fewer analog inputs | Select when BOM cost sensitivity outweighs need for full analog feature set |
Compared with R7FA2A1AB3CNE#AC0, the R7FA2A1AB3CFM offers greater I/O and analog scalability in a larger package, while the R7FA2A1AB3CNF reduces pin count and analog resources for cost-optimized implementations-both share identical core, memory, security, and USB/CAN functionality.
Availability
R7FA2A1AB3CNE#AC0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, motor control gateways, and energy meter interfaces requiring stable component supply across extended temperature ranges.
Supply support for R7FA2A1AB3CNE#AC0 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, and power solutions for automotive, industrial, and IoT markets.
The RA2A1 Group, which includes R7FA2A1AB3CNE#AC0, was designed specifically for cost-sensitive, low-power industrial human-machine interfaces and sensor edge nodes-emphasizing analog integration, security, and USB/CAN connectivity in compact packages.
FAQ
What is the maximum operating frequency of the R7FA2A1AB3CNE#AC0?
The R7FA2A1AB3CNE#AC0 operates at a maximum frequency of 48 MHz using its Arm Cortex-M23 core. This speed is achievable with the high-speed on-chip oscillator (HOCO) at VCC = 1.8–5.5 V. Frequency stability is enhanced by the Clock Frequency Accuracy Measurement Circuit (CAC), which validates clock integrity in real time-critical for USB timing and CAN bit-rate accuracy in the R7FA2A1AB3CNE#AC0.
Does the R7FA2A1AB3CNE#AC0 support USB device functionality with battery charging detection?
Yes, the R7FA2A1AB3CNE#AC0 integrates a USB 2.0 Full-Speed module compliant with Battery Charging Specification 1.2. It includes an on-chip transceiver and LDO regulator, enabling direct USB connection without external components. The R7FA2A1AB3CNE#AC0 detects dedicated charging ports (DCP), standard downstream ports (SDP), and charging downstream ports (CDP) via D+–D− voltage analysis-supporting fast charging in portable industrial tools and diagnostic devices.
How many analog-to-digital converters does the R7FA2A1AB3CNE#AC0 include, and what are their key specifications?
The R7FA2A1AB3CNE#AC0 includes two independent ADCs: a 16-bit successive-approximation ADC16 with 1.2 Msps sampling rate and up to 12 single-ended inputs, and a 24-bit sigma-delta SDADC24 with 15.6 ksps and programmable gain amplifier. Both support differential and single-ended modes, internal reference selection, and calibration for offset/gain error-enabling the R7FA2A1AB3CNE#AC0 to simultaneously acquire high-speed motor current (ADC16) and high-resolution temperature (SDADC24) in industrial drives.
What safety and security features are implemented in the R7FA2A1AB3CNE#AC0?
The R7FA2A1AB3CNE#AC0 integrates hardware-based safety and security features including Error Correction Code (ECC) for SRAM, Flash area protection, ADC self-diagnosis, Independent Watchdog Timer (IWDT) with dedicated oscillator, and register write protection. Security features include AES128/256 acceleration and True Random Number Generation (TRNG). These capabilities make the R7FA2A1AB3CNE#AC0 suitable for IEC 61508 SIL2-compliant industrial controllers and secure firmware update implementations.
What is the pin count and package type of the R7FA2A1AB3CNE#AC0?
The R7FA2A1AB3CNE#AC0 uses a 48-pin QFN package (PWQN0048KB-A) measuring 7 mm × 7 mm with 0.5 mm pitch and an exposed thermal pad. This package provides 30 GPIOs, including 6 pins tolerant to 5 V, and supports reflow soldering per JEDEC J-STD-020. The compact footprint makes the R7FA2A1AB3CNE#AC0 ideal for space-constrained industrial modules where thermal performance and board area are critical constraints.
R7FA2A1AB3CNE#AC0 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#AC0 FAQ
1.How can I place an order for R7FA2A1AB3CNE#AC0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FA2A1AB3CNE#AC0 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#AC0 reliable?
The price and inventory of R7FA2A1AB3CNE#AC0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FA2A1AB3CNE#AC0 is usually 5 days.
3.What payment methods are accepted for R7FA2A1AB3CNE#AC0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FA2A1AB3CNE#AC0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FA2A1AB3CNE#AC0?
R7FA2A1AB3CNE#AC0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FA2A1AB3CNE#AC0 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#AC0?
For technical support, including R7FA2A1AB3CNE#AC0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FA2A1AB3CNE#AC0 requirements.
6.How does Aetrix verify that R7FA2A1AB3CNE#AC0 is sourced from the original manufacturer or authorized distributors?
All R7FA2A1AB3CNE#AC0 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#AC0 meets industry standards.
7.What is the process for return or replacement of R7FA2A1AB3CNE#AC0?
All R7FA2A1AB3CNE#AC0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FA2A1AB3CNE#AC0, 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#AC0 part is unused and in its original packaging.
Return procedure for R7FA2A1AB3CNE#AC0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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