Renesas R7FS3A17C3A01CNB#BA0
- Part No.:
- R7FS3A17C3A01CNB#BA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-WFQFN Exposed Pad
- Datasheet:
-
R7FS3A17C3A01CNB#BA0.pdf
- Description:
- SYNERGY MCU PLATFORM S3A1 1MB QF
- Quantity:
- Payment:

- Shipping:

Inventory:3,451
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Product details
Overview
R7FS3A17C3A01CNB#BA0 from Renesas Electronics is a 32-bit ARM Cortex-M4F-based microcontroller in the Synergy S3 Series, featuring 1 MB Flash, 256 KB SRAM, integrated FPU, and hardware AES/SHA/TRNG security accelerators. It operates at up to 48 MHz, supports USB 2.0 FS device/host/OTG, and targets secure industrial HMI and sensor-edge applications with real-time control.
For engineers reviewing the R7FS3A17C3A01CNB#BA0 datasheet, R7FS3A17C3A01CNB#BA0 pinout, R7FS3A17C3A01CNB#BA0 application, or R7FS3A17C3A01CNB#BA0 equivalent, key selection criteria include Flash/SRAM capacity, USB OTG support, cryptographic acceleration, operating voltage range (2.7–3.6 V), and QFN64 package compatibility with industrial temperature grade (−40°C to +85°C).
Technical Context
The R7FS3A17C3A01CNB#BA0 implements a Cortex-M4F core with single-precision floating-point unit and memory protection unit (MPU), enabling deterministic real-time execution. It integrates a multi-layer AHB/APB bus matrix, configurable GPIOs with programmable pull-up/down, and dual-channel 12-bit ADC with 1.1 μs conversion time.
Its system-level timing architecture includes an on-chip FLL and PLL for clock generation, supporting multiple clock sources (internal high-speed oscillator, external crystal up to 20 MHz, or USB SOF). Peripheral flexibility is enhanced by the Pin Function Select (PFS) register, allowing dynamic I/O remapping without hardware changes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F with FPU and MPU - enables deterministic floating-point math and memory isolation for safety-critical tasks. |
| Max Operating Frequency | 48 MHz - delivers sufficient throughput for real-time motor control and protocol stack processing. |
| Flash Memory | 1024 KB - supports dual-bank operation for safe over-the-air (OTA) firmware updates without runtime interruption. |
| SRAM | 256 KB - accommodates large buffers for USB audio streaming or encrypted data packet assembly. |
| USB Interface | USB 2.0 Full-Speed Device/Host/OTG - allows direct connection to PC peripherals or embedded host controllers without external transceivers. |
| Security Accelerators | AES-128/256, SHA-256, TRNG - offloads crypto operations from CPU, reducing latency and power in secure boot or TLS handshake. |
| Operating Voltage | 2.7 V to 3.6 V - compatible with standard 3.3 V industrial power rails and tolerant of brown-out conditions. |
| Temperature Range | −40°C to +85°C - qualified for deployment in factory automation, building controls, and outdoor edge nodes. |
Pinout & Package
This device is housed in a 64-pin QFN package (10 mm × 10 mm, 0.5 mm pitch) with wettable flanks, optimized for automated optical inspection (AOI) and thermal dissipation in compact industrial modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dedicated analog/digital power pins with separate decoupling requirements per datasheet section 9.2. |
| XTAL, EXTAL | External crystal oscillator input/output | Supports 1–20 MHz crystals for precise clock source; internal load capacitors configurable via registers. |
| USB_DP, USB_DM | USB differential data lines | Integrated PHY with internal termination; requires no external resistors for full-speed operation. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | Configurable as digital I/O, peripheral functions (UART, SPI, I²C, PWM), or analog inputs via PFS register. |
| ADC00–ADC15 | Analog-to-digital converter inputs | 16-channel 12-bit ADC with sample-and-hold; supports simultaneous sampling across two groups for motor current sensing. |
| SWDIO, SWCLK | Serial Wire Debug interface | Two-pin debug port supporting programming, breakpointing, and real-time trace via SWO pin if enabled. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank Flash | Enables seamless firmware updates with rollback capability-critical for unattended industrial gateways. |
| Hardware Crypto Engine | Accelerates AES-GCM encryption/decryption at >10 Mbps, reducing CPU load during TLS 1.2/1.3 session establishment. |
| USB OTG Controller | Supports role switching between device and host modes under software control-ideal for field-service tools that connect to sensors or PCs. |
| Configurable GPIO Matrix | Allows run-time remapping of peripheral signals to alternate pins-simplifies PCB layout reuse across product variants. |
| Low-power Modes | Includes Sleep, Deep Sleep, and Software Standby with wake-up from GPIO, RTC, or USB activity-extends battery life in portable HMIs. |
| Industrial Temp Grade | Qualified per JEDEC JESD22-A104 for −40°C to +85°C operation-ensures reliability in non-climate-controlled factory environments. |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
Use Scenario: Touch-enabled local operator interface for PLC-controlled machinery with real-time status display and alarm logging. IC Role / Device Role / Timing Role: Main application processor executing GUI framework, managing USB HID communication with touch controller, and driving SPI-connected LCD. Use Value: Integrated FPU accelerates graphics rendering; dual-bank Flash ensures zero-downtime firmware upgrades during scheduled maintenance windows. | Use Scenario: Battery-powered vibration/temperature sensor node transmitting encrypted telemetry via USB-C to gateway or PC. IC Role / Device Role / Timing Role: Edge data aggregator performing sensor fusion, AES-CTR encryption, and USB mass storage emulation for offline data retrieval. Use Value: Hardware TRNG seeds encryption keys; low-power Deep Sleep mode extends 2-year battery life with periodic wake-up for measurement bursts. |
| USB Field Programmer | Secure Gateway Controller |
Use Scenario: Handheld tool used by technicians to reprogram legacy industrial controllers via USB DFU or custom bootloader. IC Role / Device Role / Timing Role: USB host initiating firmware transfers, verifying signatures using SHA-256, and flashing external SPI NOR via QSPI interface. Use Value: On-chip crypto accelerators validate firmware authenticity in <50 ms; QSPI interface achieves 40 MB/s read speed for fast image loading. | Use Scenario: Protocol translation gateway connecting Modbus RTU field devices to cloud via TLS-secured MQTT over USB CDC ACM. IC Role / Device Role / Timing Role: Secure network edge controller handling TLS handshake, certificate validation, and packet forwarding with hardware-accelerated AES. Use Value: Offloaded crypto reduces CPU utilization below 15% during sustained 1 Mbps encrypted traffic-preserving cycles for real-time protocol parsing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FS3A17C3A01CFB#AA0 | Same core and memory, but in 64-pin LQFP package with exposed pad - different thermal profile and soldering process. | LQFP preferred for prototyping or manual rework; QFN (R7FS3A17C3A01CNB#BA0) better suited for high-volume automated assembly. | Select R7FS3A17C3A01CFB#AA0 only when board-level test access or hand-soldering is required. |
| R7FS5D57C3A01CNB#BA0 | Upgraded to Cortex-M4F @ 120 MHz, 2 MB Flash, 512 KB SRAM, and CAN FD interface - higher performance and connectivity. | Required for applications needing CAN FD bus integration or >100 kLines/s code execution (e.g., advanced motion control). | Choose R7FS5D57C3A01CNB#BA0 when future scalability, CAN FD, or increased memory headroom is mandatory. |
Compared with R7FS3A17C3A01CNB#BA0, the LQFP variant offers easier debugging and rework at the cost of larger footprint and lower thermal efficiency, while the S5D5 upgrade delivers significant compute headroom and CAN FD-but at higher BOM cost and power consumption.
Availability
R7FS3A17C3A01CNB#BA0 is available at Aetrix Electronics and suitable for industrial HMI development, smart sensor node production, and secure USB gateway design requiring stable component supply across multi-year product lifecycles.
Supply support for R7FS3A17C3A01CNB#BA0 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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and enterprise markets.
The Synergy S3 Series, including R7FS3A17C3A01CNB#BA0, was designed to deliver secure, scalable, and certified embedded solutions for industrial human-machine interfaces, sensor edge nodes, and USB-connected control systems.
FAQ
What is the maximum operating frequency of the R7FS3A17C3A01CNB#BA0?
The R7FS3A17C3A01CNB#BA0 operates at a maximum frequency of 48 MHz, achieved via its on-chip PLL driven by internal or external clock sources. This frequency is fully supported across the entire industrial temperature range (−40°C to +85°C) and voltage range (2.7–3.6 V), as verified in the Electrical Characteristics section of the official Renesas datasheet. The R7FS3A17C3A01CNB#BA0 maintains timing compliance without derating under worst-case conditions.
Does the R7FS3A17C3A01CNB#BA0 support USB device, host, and OTG modes simultaneously?
Yes, the R7FS3A17C3A01CNB#BA0 integrates a single USB 2.0 Full-Speed controller capable of dynamically switching between device, host, and OTG roles under software control. Mode selection is configured via the USBPHYCR and USBDMCR registers, and role negotiation follows USB 2.0 specification requirements. The R7FS3A17C3A01CNB#BA0 requires no external transceiver or level-shifting components for any of these modes.
What security features are implemented in hardware on the R7FS3A17C3A01CNB#BA0?
The R7FS3A17C3A01CNB#BA0 includes dedicated hardware accelerators for AES-128/256 (ECB/CBC/CTR/GCM), SHA-256, and a True Random Number Generator (TRNG) compliant with NIST SP800-90B. These blocks operate independently of the CPU, enabling cryptographic operations with deterministic latency and reduced power consumption. All security peripherals are accessible via the SSP (Synergy Software Package) drivers and validated in the R7FS3A17C3A01CNB#BA0's security certification documentation.
Is the R7FS3A17C3A01CNB#BA0 pin-compatible with other S3A1 group members?
No, the R7FS3A17C3A01CNB#BA0 is not universally pin-compatible across all S3A1 variants. While it shares the same 64-pin QFN package outline with several members (e.g., R7FS3A17C3A01CFB#AA0), pin functions differ significantly due to variations in peripheral enablement and I/O multiplexing. For example, USB_DP/DM placement and ADC channel mapping vary between part numbers. Always consult the specific "Pin Assignments" table in the R7FS3A17C3A01CNB#BA0 User's Manual before assuming compatibility.
What development tools are officially supported for the R7FS3A17C3A01CNB#BA0?
Renesas officially supports the E2 Studio IDE with SSP v1.7.0+, the Segger J-Link PRO debugger, and the Synergy Starter Kit (SK-S3A1). These tools provide full debug visibility, flash programming, and peripheral configuration for the R7FS3A17C3A01CNB#BA0. The R7FS3A17C3A01CNB#BA0 is also validated with IAR Embedded Workbench and Arm Keil MDK, though Renesas-provided middleware and HAL drivers are optimized for E2 Studio and SSP integration.
R7FS3A17C3A01CNB#BA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-WFQFN Exposed Pad
- Series:
- S3A1
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M4F
- Core Size:
- 32-Bit
- 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 2x8b, 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FS3A17C3A01CNB#BA0 FAQ
1.How can I place an order for R7FS3A17C3A01CNB#BA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FS3A17C3A01CNB#BA0 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#BA0 reliable?
The price and inventory of R7FS3A17C3A01CNB#BA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FS3A17C3A01CNB#BA0 is usually 5 days.
3.What payment methods are accepted for R7FS3A17C3A01CNB#BA0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FS3A17C3A01CNB#BA0 transactions.
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R7FS3A17C3A01CNB#BA0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FS3A17C3A01CNB#BA0 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#BA0?
For technical support, including R7FS3A17C3A01CNB#BA0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FS3A17C3A01CNB#BA0 requirements.
6.How does Aetrix verify that R7FS3A17C3A01CNB#BA0 is sourced from the original manufacturer or authorized distributors?
All R7FS3A17C3A01CNB#BA0 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#BA0 meets industry standards.
7.What is the process for return or replacement of R7FS3A17C3A01CNB#BA0?
All R7FS3A17C3A01CNB#BA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FS3A17C3A01CNB#BA0, 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#BA0 part is unused and in its original packaging.
Return procedure for R7FS3A17C3A01CNB#BA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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