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Renesas R7FS3A37A3A01CFP#AA0
- Part No.:
- R7FS3A37A3A01CFP#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R7FS3A37A3A01CFP#AA0.pdf
- Description:
- IC MCU 32BIT 512KB FLSH 100LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:832
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Product details
Overview
R7FS3A37A3A01CFP#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, 12-bit DAC, and SCE5 security engine - deployed in industrial HMI panels requiring real-time touch response, battery-backed RTC, and secure firmware updates.
For engineers reviewing the R7FS3A37A3A01CFP#AA0 datasheet, R7FS3A37A3A01CFP#AA0 pinout, R7FS3A37A3A01CFP#AA0 application, or R7FS3A37A3A01CFP#AA0 equivalent, key selection criteria include its 100-pin LQFP package, –40°C to +105°C operating range, 18-channel ADC14, dual AGT timers for low-power wake-up, and USB Battery Charging Specification 1.2 compliance for embedded charging applications.
Technical Context
The R7FS3A37A3A01CFP#AA0 implements an Armv7E-M architecture with DSP extensions and single-precision FPU, supporting deterministic real-time execution at up to 48 MHz. Its memory subsystem includes ECC-protected SRAM (16 KB) and parity-protected SRAM (80 KB), alongside 8-KB data flash rated for 100,000 erase/write cycles.
Peripherals are orchestrated via the Event Link Controller (ELC), enabling autonomous module interaction without CPU intervention - critical for low-latency touch sensing (CTSU), LCD refresh (SLCDC), and CAN message handling. The SCE5 crypto engine provides hardware-accelerated AES128/256, GHASH, and TRNG for secure boot and OTA updates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4 with FPU, 48 MHz max - enables real-time signal processing and floating-point math for motor control or sensor fusion. |
| Memory | 512-KB code flash + 8-KB data flash + 96-KB SRAM (80 KB parity + 16 KB ECC) - supports robust firmware storage, parameter retention, and fault-tolerant runtime operation. |
| Analog | 14-bit ADC14 (18 channels), 12-bit DAC12, 2× ACMPLP, 4× OPAMP, TSN - delivers high-resolution sensor acquisition and analog actuation in compact industrial nodes. |
| Connectivity | USB 2.0 FS (with on-chip transceiver & BC 1.2), CAN 2.0B, 6× SCI, 3× I2C, 2× SPI, QSPI, SDHI - enables mixed wired/wireless gateway functionality with legacy bus support. |
| HMI | Segment LCD Controller (up to 4×54 or 8×50 segments), CTSU (27 electrodes) - directly drives multiplexed LCDs and detects capacitive touch through overlayed glass without external ICs. |
| Power & Safety | VCC = 1.6–5.5 V; Ta = –40°C to +105°C; IWDT, CAC, CRC, DOC, register write protection - certified for extended-temperature industrial control and fail-safe monitoring. |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 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, and backup registers during main power loss - enables calendar retention and wake-on-event without system reset. |
| XTAL / EXTAL | Main crystal oscillator interface | Supports 1–20 MHz crystals; enables precise timing for USB, CAN, and RTC - critical for protocol compliance and timestamp accuracy. |
| XCIN / XCOUT | Sub-clock oscillator interface | Connects 32.768 kHz crystal for RTC calendar mode and low-power AGT timer operation - maintains timekeeping during deep-sleep modes. |
| RES | Active-low reset input | Hardware reset assertion resets all peripherals and CPU - used for safe recovery after brownout or watchdog timeout. |
| SWDIO / SWCLK | Serial Wire Debug interface | Enables non-intrusive debug, flash programming, and real-time trace via standard ARM SWD - no JTAG header required. |
| MD | Mode configuration input | Defines boot source (flash vs. SCI/USB) at power-on - must be stable during reset release to avoid undefined startup behavior. |
| IRQ0–IRQ15 | Maskable interrupt inputs | Supports prioritized peripheral event handling (e.g., ADC EOC, CTSU scan complete, USB SOF) - routed to NVIC for low-latency response. |
Key Features
| Feature | Design Value |
|---|---|
| Memory Mirror Function (MMF) | Maps application image from flash load address to link address in unused 23-bit space - simplifies firmware updates without linker script changes or runtime relocation. |
| Event Link Controller (ELC) | Direct hardware routing of 128+ peripheral events (e.g., ADC conversion done → DMA trigger → CTSU scan start) - eliminates CPU polling and reduces latency by >90%. |
| Capacitive Touch Sensing Unit (CTSU) | 27-electrode scanning with noise immunity and auto-calibration - achieves <5-ms scan time and >60-dB noise rejection for glove-friendly front panels. |
| Secure Crypto Engine 5 (SCE5) | Hardware AES128/256 encryption/decryption, GHASH, TRNG - accelerates secure boot verification and encrypted firmware download by 10× vs. software-only implementation. |
| Low Power Asynchronous Timers (AGT) | Two independent 16-bit timers clocked by LOCO (32.768 kHz) - sustain accurate wake-up intervals down to 1 μA system current in stop mode. |
Applications
| Industrial HMI Panel | Smart Energy Meter |
|---|---|
Use Scenario: A wall-mounted display with segmented LCD, capacitive buttons, and USB-C charging port for field technicians. IC Role / Device Role / Timing Role: R7FS3A37A3A01CFP#AA0 serves as the central controller - driving LCD segments, scanning touch electrodes, managing USB battery charging, and logging metering data to internal flash. Use Value: Integrated SLCDC and CTSU eliminate external touch/LCD drivers; USB BC 1.2 enables direct smartphone-style charging; 105°C rating ensures reliability in enclosed enclosures. |
Use Scenario: DIN-rail mounted electricity meter with tamper detection, RTC-based billing, and CAN-based sub-meter communication. IC Role / Device Role / Timing Role: R7FS3A37A3A01CFP#AA0 acts as the metrology host - acquiring ADC samples, computing kWh, maintaining calendar-correct RTC, and relaying data over CAN to concentrators. Use Value: 14-bit ADC14 with self-diagnosis meets IEC 62053 accuracy requirements; ECC SRAM prevents data corruption in long-term logging; CAN 2.0B ensures interoperability with legacy infrastructure. |
| Medical Patient Monitor | Building Automation Controller |
Use Scenario: Portable vital sign monitor with OLED/LCD hybrid display, button-free touch UI, and USB data export. IC Role / Device Role / Timing Role: R7FS3A37A3A01CFP#AA0 manages biopotential signal conditioning (OPAMP + ADC14), touch-driven menu navigation (CTSU), and secure USB file transfer (SCE5 + USBFS). Use Value: Four integrated OPAMPs condition ECG/SpO₂ signals without external amplifiers; TRNG seeds cryptographic keys for HIPAA-compliant data export; 105°C rating supports sterilization validation. |
Use Scenario: HVAC zone controller with LCD status display, temperature/humidity sensing, and BACnet/IP over Ethernet (via external PHY). IC Role / Device Role / Timing Role: R7FS3A37A3A01CFP#AA0 executes control loops (GPT PWM for valve actuation), reads sensors (TSN + ADC14), updates LCD (SLCDC), and communicates via SCI UART to Ethernet bridge. Use Value: Dual AGT timers enable precise 1-s sensor polling while CPU sleeps; 5-V tolerant I/O interfaces directly with legacy 5-V sensors; RTC with battery backup maintains schedule across power outages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FS3A37A2A01CLJ | Same core, flash, and peripherals but rated for –40°C to +85°C and packaged in 100-pin LGA - lacks VBATT support and has reduced CTSU electrode count (24 vs. 27). | Suitable for commercial-grade HMI where extended temperature and battery backup are not required. | Select R7FS3A37A2A01CLJ only if ambient operating range stays below 85°C and RTC backup is handled externally. |
| R7FA4M1AB3CFP#AA0 | Arm Cortex-M4, 48 MHz, 512-KB flash, but uses RA4M1 platform - lacks CTSU, SLCDC, USBFS, and SCE5; adds TrustZone and more GPIOs. | Better suited for secure IoT edge nodes needing TLS offload and cloud connectivity, not touch/LCD-centric devices. | Choose R7FA4M1AB3CFP#AA0 when security isolation (TrustZone) and Ethernet/Wi-Fi coexistence outweigh integrated HMI features. |
Compared with R7FS3A37A3A01CFP#AA0, R7FS3A37A2A01CLJ trades extended temperature and battery backup for LGA packaging and lower cost, while R7FA4M1AB3CFP#AA0 shifts focus from integrated HMI to scalable secure connectivity - making R7FS3A37A3A01CFP#AA0 optimal for thermally demanding, self-contained touch-display applications.
Availability
R7FS3A37A3A01CFP#AA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy meters, medical patient monitors, and building automation controllers requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for R7FS3A37A3A01CFP#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 Corporation is a global semiconductor leader delivering trusted embedded design innovation for automotive, industrial, infrastructure, and IoT applications.
The R7FS3A37A3A01CFP#AA0 belongs to the Synergy S3A3 microcontroller group - designed specifically for high-integration human-machine interface applications requiring LCD/touch control, secure connectivity, and extended-temperature reliability in resource-constrained industrial environments.
FAQ
What is the maximum operating frequency and core architecture of the R7FS3A37A3A01CFP#AA0?
The R7FS3A37A3A01CFP#AA0 features an Arm Cortex-M4 core with Floating Point Unit (FPU), operating at a maximum frequency of 48 MHz under the Armv7E-M architecture with DSP instruction set. This enables efficient real-time signal processing and floating-point computation for applications such as motor control and sensor fusion - all within the R7FS3A37A3A01CFP#AA0's tightly integrated peripheral set.
Does the R7FS3A37A3A01CFP#AA0 support USB Battery Charging Specification 1.2?
Yes, the R7FS3A37A3A01CFP#AA0 USB 2.0 Full-Speed module fully complies with USB Battery Charging Specification 1.2. It includes an on-chip transceiver and voltage regulator, allowing direct 5-V-powered USB charging without external components - a key capability confirmed in the R01DS0307EU0120 datasheet for the R7FS3A37A3A01CFP#AA0.
How many analog input channels does the 14-bit ADC (ADC14) support on the R7FS3A37A3A01CFP#AA0?
The R7FS3A37A3A01CFP#AA0's 14-bit ADC14 supports 18 analog input channels, as specified in Table 1.15 (Function Comparison) of the R01DS0307EU0120 datasheet. This count is specific to the R7FS3A37A3A01CFP#AA0 variant and reflects its 100-pin LQFP package limitations versus higher-pin-count members of the S3A3 family.
What LCD segment drive capability does the R7FS3A37A3A01CFP#AA0 provide?
The R7FS3A37A3A01CFP#AA0 integrates a Segment LCD Controller (SLCDC) supporting up to 4 commons × 54 segments or 8 commons × 50 segments - matching the superset capability documented for the S3A3 group. This allows direct driving of multiplexed LCDs in industrial panel meters and medical displays without external segment drivers.
Is the R7FS3A37A3A01CFP#AA0 qualified for operation at 105°C ambient temperature?
Yes, the R7FS3A37A3A01CFP#AA0 is explicitly rated for operation from –40°C to +105°C, as confirmed in Table 1.14 (Product List) and Section 1.3 (Part Numbering) of the R01DS0307EU0120 datasheet. Its 100-pin LQFP package (PLQP0100KB-B) is qualified for this extended temperature range, making it suitable for sealed industrial enclosures and automotive under-hood proximity applications.
R7FS3A37A3A01CFP#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-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:
- 84
- 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 25x14b; D/A 3x8b, 3x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FS3A37A3A01CFP#AA0 FAQ
1.How can I place an order for R7FS3A37A3A01CFP#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FS3A37A3A01CFP#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 R7FS3A37A3A01CFP#AA0 reliable?
The price and inventory of R7FS3A37A3A01CFP#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FS3A37A3A01CFP#AA0 is usually 5 days.
3.What payment methods are accepted for R7FS3A37A3A01CFP#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FS3A37A3A01CFP#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FS3A37A3A01CFP#AA0?
R7FS3A37A3A01CFP#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FS3A37A3A01CFP#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 R7FS3A37A3A01CFP#AA0?
For technical support, including R7FS3A37A3A01CFP#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FS3A37A3A01CFP#AA0 requirements.
6.How does Aetrix verify that R7FS3A37A3A01CFP#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FS3A37A3A01CFP#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 R7FS3A37A3A01CFP#AA0 meets industry standards.
7.What is the process for return or replacement of R7FS3A37A3A01CFP#AA0?
All R7FS3A37A3A01CFP#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FS3A37A3A01CFP#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 R7FS3A37A3A01CFP#AA0 part is unused and in its original packaging.
Return procedure for R7FS3A37A3A01CFP#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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