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Renesas R7FS3A37A3A01CFM#AA0
- Part No.:
- R7FS3A37A3A01CFM#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R7FS3A37A3A01CFM#AA0.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 64LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,349
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Product details
Overview
R7FS3A37A3A01CFM#AA0 from Renesas is a 48-MHz Arm Cortex-M4 microcontroller with FPU, 512-KB code flash, 96-KB SRAM, and integrated Segment LCD Controller (SLCDC), Capacitive Touch Sensing Unit (CTSU), USB 2.0 Full-Speed, 14-bit ADC, and AES256 security engine - designed for industrial HMI, smart meters, and battery-backed embedded control systems operating from –40°C to +105°C.
For engineers reviewing the R7FS3A37A3A01CFM#AA0 datasheet, R7FS3A37A3A01CFM#AA0 pinout, R7FS3A37A3A01CFM#AA0 application, or R7FS3A37A3A01CFM#AA0 equivalent, key selection criteria include its 64-pin LQFP package, 1.6–5.5 V operation, dual watchdog timers (WDT/IWDT), real-time clock with battery backup, and hardware-accelerated crypto (AES128/256, GHASH, TRNG).
Technical Context
This MCU implements an Armv7E-M architecture with DSP extensions and single-precision FPU, supporting up to 48 MHz operation and 4-GB address space. Its memory subsystem includes ECC-protected SRAM (16 KB), parity-protected SRAM (80 KB), 8-KB data flash rated for 100,000 erase/write cycles, and Memory Mirror Function (MMF) for flexible firmware load/link separation.
The system integrates multiple low-power peripherals: two AGT timers for asynchronous wake-up, RTC with calendar mode (2000–2099) and VBATT support, ELC for CPU-free peripheral chaining, and four DMAC channels plus DTC for autonomous data movement. Safety features include CAC for clock accuracy monitoring, SRAM parity/ECC error detection, and register write protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4 with FPU, 48 MHz max - enables deterministic real-time control with floating-point math for motor algorithms or sensor fusion. |
| Memory | 512-KB code flash + 8-KB data flash + 96-KB SRAM (80 KB parity + 16 KB ECC) - supports robust firmware updates and safety-critical data retention. |
| Analog | 14-bit ADC (28 ch), 12-bit DAC, 2× ACMPLP, 4× OPAMP, TSN - delivers high-precision sensing and analog signal conditioning without external components. |
| Connectivity | USB 2.0 FS (with on-chip transceiver & BC1.2), CAN 2.0B, 6× SCI, 3× I2C, 2× SPI, QSPI, SDHI - enables mixed wired/wireless field device communication. |
| HMI | SLCDC (up to 54 seg × 4 com), CTSU (27 sensors) - directly drives segment LCDs and detects touch through insulating overlays in harsh environments. |
| Security | SCE5 with AES128/256, GHASH, TRNG - provides certified cryptographic acceleration for secure boot, OTA updates, and data encryption. |
| Power & Temp | 1.6–5.5 V supply, –40°C to +105°C operation, 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch) - suitable for extended-temperature industrial and automotive under-hood applications. |
Pinout & Package
Package: 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant Sn terminal finish, rated for –40°C to +105°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: VCC powers core/peripherals; VSS is common reference - requires local 0.1-μF decoupling per VCC pin. |
| VBATT | Battery backup input | Supplies RTC, SOSC, LOCO, and backup registers during main power loss - enables calendar retention and wake-up from deep sleep. |
| RES | Active-low reset input | Hardware reset assertion resets all logic and initiates boot sequence - must be held low ≥100 ns for valid reset. |
| XTAL / EXTAL | Main crystal oscillator interface | Supports 1–20 MHz crystals (VCC ≥2.4 V); enables precise timing for USB, CAN, and real-time control loops. |
| SWDIO / SWCLK | Serial Wire Debug interface | Enables non-intrusive debug, flash programming, and trace via JTAG/SWD - no dedicated debug pins required beyond these two. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | Up to 49 configurable I/O pins including 7× 5-V tolerant inputs - supports GPIO, UART, I2C, SPI, and CTSU electrode routing. |
Key Features
| Feature | Design Value |
|---|---|
| Memory Mirror Function (MMF) | Maps flash load address to link address transparently - simplifies firmware update deployment without linker script changes or runtime relocation. |
| Event Link Controller (ELC) | Direct hardware-triggered peripheral-to-peripheral linking - eliminates CPU overhead for time-critical sequences like ADC→DMA→DAC waveform generation. |
| Capacitive Touch Sensing Unit (CTSU) | 27-channel self-capacitance measurement with noise immunity - enables reliable touch detection through glass, plastic, or metal overlays in industrial panels. |
| Secure Crypto Engine 5 (SCE5) | Hardware-accelerated AES128/256, GHASH, TRNG - reduces encryption latency by >10× vs. software-only implementation and prevents side-channel leakage. |
| Low Power Asynchronous Timers (AGT) | Two 16-bit independent timers with sub-μA current draw - sustains periodic wake-up or pulse generation during stop modes without waking the core. |
Applications
| Industrial HMI Panel | Smart Energy Meter |
|---|---|
Use Scenario: A wall-mounted factory control panel with segmented LCD display, tactile buttons, and environmental sensors. IC Role / Device Role / Timing Role: R7FS3A37A3A01CFM#AA0 serves as the central controller - driving the SLCDC, scanning CTSU electrodes, processing ADC readings, and managing USB-CDC communication with PLCs. Use Value: Integrated SLCDC and CTSU eliminate external driver ICs; 105°C rating ensures reliability in uncooled enclosures; USB FS enables field firmware updates without opening the panel. | Use Scenario: DIN-rail mounted electricity meter with tamper detection, real-time tariff calculation, and optical/IR communication. IC Role / Device Role / Timing Role: R7FS3A37A3A01CFM#AA0 executes metrology algorithms, logs consumption data to data flash, maintains accurate time via RTC+VBATT, and handles IR/USB host protocols. Use Value: 8-KB data flash endurance (100k cycles) supports daily logging for >27 years; AES256 secures firmware and tariff tables; CAC validates oscillator drift to maintain ±1 ppm timekeeping accuracy. |
| Automotive Body Control Module | Portable Medical Device |
Use Scenario: Under-hood junction box managing lighting, HVAC actuators, and CAN diagnostics in commercial vehicles. IC Role / Device Role / Timing Role: R7FS3A37A3A01CFM#AA0 acts as a CAN node controller - receiving commands, driving PWM outputs for fan speed control, monitoring temperature via TSN, and detecting overcurrent with ACMPLP. Use Value: –40°C to +105°C operation meets AEC-Q100 Grade 2 requirements; dual watchdogs (WDT + IWDT) ensure fail-safe recovery; CAN 2.0B mailbox FIFO prevents message loss during bus overload. | Use Scenario: Battery-powered patient monitor with ECG front-end, OLED display, and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: R7FS3A37A3A01CFM#AA0 acquires analog biosignals via ADC14+OPAMP, performs real-time filtering using FPU, manages low-power sleep states, and interfaces with BLE SoC via UART. Use Value: 1.6 V minimum supply extends battery life; 14-bit ADC resolution captures microvolt-level ECG signals; TRNG seeds secure BLE pairing keys; 96-KB SRAM buffers multi-second waveform history. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FS3A37A2A01CFM#AA0 | Same core, memory, and peripherals but rated for –40°C to +85°C; uses identical 64-pin LQFP package. | Not qualified for extended-temperature industrial or automotive under-hood use. | Select when ambient temperature stays below 85°C and cost optimization is prioritized over thermal margin. |
| R7FA4M1AB3CFM#AA0 | Arm Cortex-M4 at 48 MHz, 512-KB flash, but lacks SLCDC, CTSU, USBFS, and SCE5; adds TrustZone and higher-speed ADC (12-bit @ 10 MSPS). | Targeted at secure IoT edge nodes requiring MPU isolation and fast sampling, not HMI or USB-connected devices. | Choose when security partitioning (TrustZone) and high-speed analog acquisition outweigh integrated display/touch/USB needs. |
Compared with R7FS3A37A2A01CFM#AA0, the R7FS3A37A3A01CFM#AA0 adds extended temperature qualification and retains full feature parity; versus R7FA4M1AB3CFM#AA0, it trades TrustZone and ADC speed for built-in HMI, USB, and crypto acceleration - making it optimal for cost-sensitive, thermally demanding human-interface applications.
Availability
R7FS3A37A3A01CFM#AA0 is available at Aetrix Electronics and suitable for industrial HMI, smart energy metering, and automotive body control applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R7FS3A37A3A01CFM#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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets, with over 40 years of microcontroller innovation.
The R7FS3A37A3A01CFM#AA0 belongs to the Synergy S3A3 group - engineered specifically for high-integration, low-power human-machine interface applications requiring LCD/touch control, USB connectivity, and hardware security in extended-temperature environments.
FAQ
What is the maximum operating frequency and core architecture of the R7FS3A37A3A01CFM#AA0?
The R7FS3A37A3A01CFM#AA0 features an Arm Cortex-M4 core with Floating Point Unit (FPU), operating at a maximum frequency of 48 MHz. It implements the Armv7E-M architecture with DSP instruction set and supports a 4-GB address space. This configuration enables efficient execution of real-time control algorithms, digital signal processing, and floating-point computations essential for industrial and medical applications where the R7FS3A37A3A01CFM#AA0 is deployed.
Does the R7FS3A37A3A01CFM#AA0 support hardware-accelerated cryptography?
Yes, the R7FS3A37A3A01CFM#AA0 integrates the Secure Crypto Engine 5 (SCE5), which provides hardware acceleration for AES128 and AES256 encryption/decryption, GHASH authentication, and a True Random Number Generator (TRNG). These capabilities are critical for secure boot, encrypted firmware updates, and data confidentiality in applications such as smart meters and medical devices where the R7FS3A37A3A01CFM#AA0 serves as the trusted execution environment.
What display and touch interfaces does the R7FS3A37A3A01CFM#AA0 support?
The R7FS3A37A3A01CFM#AA0 includes a Segment LCD Controller (SLCDC) supporting up to 54 segments × 4 commons or 50 segments × 8 commons, and a Capacitive Touch Sensing Unit (CTSU) with up to 27 sensing channels. These peripherals enable direct drive of segmented displays and robust touch detection through insulating materials - key features for industrial control panels and consumer appliances where the R7FS3A37A3A01CFM#AA0 functions as the primary HMI controller.
What is the memory configuration of the R7FS3A37A3A01CFM#AA0?
The R7FS3A37A3A01CFM#AA0 contains 512-KB code flash memory, 8-KB data flash memory (rated for 100,000 erase/write cycles), and 96-KB SRAM - split into 80 KB with parity protection and 16 KB with Error Correction Code (ECC). This memory architecture supports safe firmware updates, long-term data logging, and fault-tolerant operation in mission-critical systems where the R7FS3A37A3A01CFM#AA0 is used for control and monitoring.
Is the R7FS3A37A3A01CFM#AA0 qualified for extended temperature operation?
Yes, the R7FS3A37A3A01CFM#AA0 is rated for operation from –40°C to +105°C and packaged in a 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch). This extended temperature range meets industrial and automotive under-hood requirements, enabling reliable deployment in environments such as factory automation cabinets, smart utility meters, and vehicle junction boxes where the R7FS3A37A3A01CFM#AA0 serves as the main system controller.
R7FS3A37A3A01CFM#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- Renesas Synergy™ S3
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, MMC/SD, QSPI, SCI, SPI, SSI, UART/USART, USB
- Peripherals:
- DMA, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 52
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 96K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 18x14b; D/A 3x8b, 3x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FS3A37A3A01CFM#AA0 FAQ
1.How can I place an order for R7FS3A37A3A01CFM#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FS3A37A3A01CFM#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 R7FS3A37A3A01CFM#AA0 reliable?
The price and inventory of R7FS3A37A3A01CFM#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FS3A37A3A01CFM#AA0 is usually 5 days.
3.What payment methods are accepted for R7FS3A37A3A01CFM#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FS3A37A3A01CFM#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FS3A37A3A01CFM#AA0?
R7FS3A37A3A01CFM#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FS3A37A3A01CFM#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 R7FS3A37A3A01CFM#AA0?
For technical support, including R7FS3A37A3A01CFM#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FS3A37A3A01CFM#AA0 requirements.
6.How does Aetrix verify that R7FS3A37A3A01CFM#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FS3A37A3A01CFM#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 R7FS3A37A3A01CFM#AA0 meets industry standards.
7.What is the process for return or replacement of R7FS3A37A3A01CFM#AA0?
All R7FS3A37A3A01CFM#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FS3A37A3A01CFM#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 R7FS3A37A3A01CFM#AA0 part is unused and in its original packaging.
Return procedure for R7FS3A37A3A01CFM#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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