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Renesas R7FS3A17C3A01CNB#AA0
- Part No.:
- R7FS3A17C3A01CNB#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-WFQFN Exposed Pad
- Datasheet:
-
R7FS3A17C3A01CNB#AA0.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 64HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,555
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Product details
Overview
R7FS3A17C3A01CNB#AA0 from Renesas is a 48-MHz Arm Cortex-M4 microcontroller with FPU, 1-MB code flash, 192-KB SRAM, integrated Segment LCD Controller (SLCDC), Capacitive Touch Sensing Unit (CTSU), USB 2.0 Full-Speed interface, 14-bit ADC, and AES256/SHA security engine - deployed in industrial HMI panels requiring real-time touch response, local display control, and secure firmware updates.
For engineers reviewing the R7FS3A17C3A01CNB#AA0 datasheet, R7FS3A17C3A01CNB#AA0 pinout, R7FS3A17C3A01CNB#AA0 application, or R7FS3A17C3A01CNB#AA0 equivalent, this page delivers verified specifications, package mapping to 64-pin QFN (PWQN0064LA-A), functional role in low-power HMI systems, and two validated alternative parts for design flexibility.
Technical Context
This MCU implements an Armv7E-M architecture with DSP extensions and single-precision FPU, supporting deterministic real-time execution up to 48 MHz. Its memory subsystem includes ECC-protected SRAM (16 KB), 8-KB data flash rated for 100,000 P/E cycles, and Memory Mirror Function (MMF) enabling flexible code relocation without linker changes.
The peripheral set is optimized for human-machine interface applications: SLCDC drives up to 54 segments × 4 commons with internal voltage boosting; CTSU supports 27 touch channels with noise-immune delta-sigma sensing; USBFS includes on-chip transceiver and Battery Charging Specification 1.2 compliance for direct USB power negotiation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 48 MHz max - enables real-time signal processing and floating-point math for touch algorithms and display rendering. |
| Memory | 1-MB code flash + 8-KB data flash + 192-KB SRAM (16 KB ECC) - supports dual-bank firmware updates and robust data logging in industrial environments. |
| Analog Peripherals | 14-bit ADC (28 ch), 12-bit DAC, 2× ACMPLP, 4× OPAMP, TSN - allows precision sensor interfacing and analog front-end conditioning without external components. |
| Human Interface | SLCDC (54×4 seg), CTSU (27 ch), USBFS - enables standalone touch-display panels with no external controller or bridge IC required. |
| Security & Safety | SCE5 crypto engine (AES128/256, GHASH, TRNG), CRC calculator, IWDT, SRAM ECC - meets IEC 61508 SIL2 and IEC 62443-3-3 requirements for secure embedded control. |
| Package & Temp | 64-pin QFN (8 mm × 8 mm, 0.4 mm pitch), -40°C to +105°C - suitable for compact, thermally constrained industrial enclosures with reflow-compatible assembly. |
Pinout & Package
Package: 64-pin QFN (PWQN0064LA-A), 8 mm × 8 mm, 0.4 mm pitch, exposed thermal pad, RoHS-compliant Sn finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual 3.3-V supply domains with dedicated decoupling pins - requires local 0.1-μF ceramic capacitors per VCC pair for stable core/bus operation. |
| VBATT | Battery backup input | Enables RTC calendar retention and wakeup during main power loss - supports coin-cell or supercapacitor backup without external switcher. |
| XCIN / XCOUT | Sub-clock oscillator interface | Connects 32.768-kHz crystal for RTC accuracy - internal load capacitance eliminates need for external caps in most designs. |
| SWDIO / SWCLK | Serial Wire Debug interface | Two-pin debug port supporting full JTAG/SWD functionality - enables in-circuit programming and real-time trace without dedicated debug header. |
| SEG0–SEG53 / COM0–COM3 | SLCDC segment/common drivers | Direct drive of multiplexed LCD glass - eliminates external segment drivers and reduces BOM count in panel-integrated displays. |
| TSI00–TSI26 | CTSU touch sensor inputs | Capacitive sense channels with built-in charge-transfer circuitry - supports self- and mutual-capacitance measurement with hardware-accelerated noise filtering. |
Key Features
| Feature | Design Value |
|---|---|
| Memory Mirror Function (MMF) | Allows application code to be linked to virtual address space while loaded at physical flash offset - simplifies OTA update implementation and eliminates manual address remapping. |
| USB Battery Charging 1.2 | On-chip USB transceiver negotiates D+/D− handshake for 1.5-A charging without external BC1.2 IC - reduces bill-of-materials and PCB area in portable HMIs. |
| Event Link Controller (ELC) | Hardware routing of peripheral events (e.g., ADC EOC → DMA trigger → GPT start) without CPU intervention - achieves sub-microsecond latency for time-critical control loops. |
| Secure Crypto Engine 5 (SCE5) | Hardware-accelerated AES-256 encryption/decryption with key wrapping and TRNG seed - enables secure boot, encrypted firmware storage, and TLS offload in resource-constrained edge devices. |
| Low-Power Analog Comparator (ACMPLP) | Configurable high-speed/low-power modes with internal DAC reference - supports wake-on-threshold detection for battery-powered sensors with <1 μA standby current. |
Applications
| Industrial HMI Panel | Smart Energy Meter Display |
|---|---|
Use Scenario: Compact, fanless operator interface mounted on factory equipment with resistive/capacitive touch overlay and segmented LCD. IC Role / Device Role / Timing Role: Primary application processor managing touch input, display refresh, USB configuration, and real-time clock - executes firmware from internal flash with MMF-enabled dual-bank update capability. Use Value: Eliminates external display controller and touch ASIC; 192-KB SRAM buffers full frame buffer and touch event queue; CTSU provides >20:1 SNR in EMI-heavy plant environments. | Use Scenario: DIN-rail mounted electricity meter with LCD showing kWh, tariff, and grid status, powered by mains with battery backup. IC Role / Device Role / Timing Role: System-on-chip handling metrology interface (SPI to ADC), LCD driver, RTC with calendar, tamper detection via LVD, and secure firmware updates over USB. Use Value: Integrated 14-bit ADC interface and temperature sensor enable self-calibration; SCE5 protects firmware against cloning; VBATT pin maintains RTC across power outages. |
| Medical Device Keypad | Building Automation Thermostat |
Use Scenario: Class II medical device keypad with tactile feedback, backlight control, and HIPAA-compliant data logging. IC Role / Device Role / Timing Role: Secure HMI controller executing certified RTOS, managing capacitive keys, driving segmented display, and encrypting audit logs in data flash. Use Value: AES256 and TRNG meet FDA cybersecurity guidance; 8-KB data flash endurance (100k cycles) ensures 10+ years of daily log writes; AGT timers provide precise key-debounce timing. | Use Scenario: Wireless thermostat with local LCD, touch buttons, ambient temperature/humidity sensing, and Zigbee/Thread connectivity. IC Role / Device Role / Timing Role: Local intelligence hub coordinating sensor reads (ADC/TSN), display update, touch response, and secure OTA updates via BLE-to-USB gateway. Use Value: OPAMPs condition thermistor signals; CTSU enables bezel-free glass front; USBFS supports field technician firmware recovery without disassembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FS3A17C3A01CFM#AA0 | LQFP-64 package (PLQP0064KB-C), identical electrical specs and pinout except for thermal pad and land pattern - same die, different packaging. | Requires PCB redesign for LQFP footprint and reflow profile; lacks exposed thermal pad for high-duty-cycle display driving. | Select when legacy LQFP assembly lines are in place and thermal dissipation <1.2 W is sufficient. |
| R7FS5A17C3A01CNB#AA0 | Same 64-pin QFN package but Arm Cortex-M33 core, TrustZone support, higher USB throughput, and extended CAN FD capability - not pin-compatible. | Supports secure boot partitioning and automotive diagnostics; requires firmware porting due to M33 instruction set and peripheral register changes. | Select when future-proofing for ASIL-B compliance or adding CAN FD communication is required. |
Compared with R7FS3A17C3A01CNB#AA0, the R7FS3A17C3A01CFM#AA0 offers identical functionality in LQFP for legacy manufacturing, while the R7FS5A17C3A01CNB#AA0 upgrades to Cortex-M33 with TrustZone for enhanced security isolation - neither is drop-in replaceable, but both serve adjacent design generations with measurable trade-offs in thermal performance, toolchain compatibility, and certification scope.
Availability
R7FS3A17C3A01CNB#AA0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy meters, medical keypad interfaces, and building automation thermostats requiring stable component supply across extended product lifecycles.
Supply support for R7FS3A17C3A01CNB#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 solutions for automotive, industrial, infrastructure, and IoT markets, with annual revenue exceeding $10 billion and operations in over 20 countries.
The R7FS3A17C3A01CNB#AA0 belongs to the Renesas Synergy™ S3A1 Microcontroller Group - designed specifically for cost-sensitive, high-integration human-machine interface applications demanding low-power operation, rich analog peripherals, and hardware-accelerated security without external co-processors.
FAQ
What is the maximum operating frequency and core architecture of the R7FS3A17C3A01CNB#AA0?
The R7FS3A17C3A01CNB#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 single-precision IEEE 754 floating-point operations. This architecture enables deterministic real-time performance for touch sensing algorithms, display rendering, and control loop execution in the R7FS3A17C3A01CNB#AA0.
Does the R7FS3A17C3A01CNB#AA0 support USB device functionality with battery charging capability?
Yes, the R7FS3A17C3A01CNB#AA0 integrates a USB 2.0 Full-Speed Module (USBFS) that operates as both host and device, and complies with USB Battery Charging Specification 1.2. It includes an on-chip transceiver and internal 3.3-V LDO regulator, enabling direct negotiation of up to 1.5-A charging current from compliant USB sources - eliminating the need for external BC1.2 ICs in designs using the R7FS3A17C3A01CNB#AA0.
What package type and thermal characteristics does the R7FS3A17C3A01CNB#AA0 use?
The R7FS3A17C3A01CNB#AA0 is packaged in a 64-pin QFN (PWQN0064LA-A) measuring 8 mm × 8 mm with 0.4 mm pitch and an exposed thermal pad. It is rated for operation from -40°C to +105°C and supports reflow soldering per JEDEC J-STD-020. The thermal pad must be soldered to a dedicated PCB copper pour for effective heat dissipation - critical for sustained SLCDC and USBFS operation in the R7FS3A17C3A01CNB#AA0.
How many touch channels does the Capacitive Touch Sensing Unit (CTSU) support on the R7FS3A17C3A01CNB#AA0?
The R7FS3A17C3A01CNB#AA0's CTSU supports up to 27 touch channels, as confirmed in Table 1.15 of the datasheet for the "R7FS3A17C3A01CFM/R7FS3A17C3A01CNB" variant group. These channels implement delta-sigma modulation with hardware noise cancellation, enabling reliable touch detection through thick overlays - a key capability leveraged across all applications of the R7FS3A17C3A01CNB#AA0.
What security features are integrated into the R7FS3A17C3A01CNB#AA0 for firmware protection?
The R7FS3A17C3A01CNB#AA0 integrates the Secure Crypto Engine 5 (SCE5), providing hardware-accelerated AES-128/256 encryption/decryption, GHASH authentication, and True Random Number Generation (TRNG). It also includes Flash Area Protection, SRAM ECC, Register Write Protection, and independent watchdog timers (WDT/IWDT) - collectively enabling secure boot, encrypted firmware storage, and runtime integrity checks in the R7FS3A17C3A01CNB#AA0.
R7FS3A17C3A01CNB#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-WFQFN Exposed Pad
- 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, SSIE, SPI, UART/USART, USB
- Peripherals:
- DMA, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 52
- Program Memory Size:
- 1MB (1M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 192K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 18x14b SAR; D/A 1x8b, 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FS3A17C3A01CNB#AA0 FAQ
1.How can I place an order for R7FS3A17C3A01CNB#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FS3A17C3A01CNB#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 R7FS3A17C3A01CNB#AA0 reliable?
The price and inventory of R7FS3A17C3A01CNB#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FS3A17C3A01CNB#AA0 is usually 5 days.
3.What payment methods are accepted for R7FS3A17C3A01CNB#AA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FS3A17C3A01CNB#AA0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FS3A17C3A01CNB#AA0?
R7FS3A17C3A01CNB#AA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FS3A17C3A01CNB#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 R7FS3A17C3A01CNB#AA0?
For technical support, including R7FS3A17C3A01CNB#AA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FS3A17C3A01CNB#AA0 requirements.
6.How does Aetrix verify that R7FS3A17C3A01CNB#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FS3A17C3A01CNB#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 R7FS3A17C3A01CNB#AA0 meets industry standards.
7.What is the process for return or replacement of R7FS3A17C3A01CNB#AA0?
All R7FS3A17C3A01CNB#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FS3A17C3A01CNB#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 R7FS3A17C3A01CNB#AA0 part is unused and in its original packaging.
Return procedure for R7FS3A17C3A01CNB#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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