Renesas R7FS5D97C3A01CFC#AA1
- Part No.:
- R7FS5D97C3A01CFC#AA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 176-LQFP
- Datasheet:
-
R7FS5D97C3A01CFC#AA1.pdf
- Description:
- SYNERGY MCU PLATFORM S5D9 1MB 17
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R7FS5D97C3A01CFC#AA1 from Renesas Electronics is a 32-bit ARM Cortex-M4F-based microcontroller in the Synergy S5 Series, featuring 2 MB Flash, 512 KB SRAM, and integrated security hardware including AES-256, SHA-256, TRNG, and secure boot. It supports USB 2.0 FS/HS, CAN FD, multiple Ethernet MACs (with RMII/MII), and operates at up to 240 MHz for real-time industrial HMI and networked edge node applications.
For engineers reviewing the R7FS5D97C3A01CFC#AA1 datasheet, R7FS5D97C3A01CFC#AA1 pinout, R7FS5D97C3A01CFC#AA1 application, or R7FS5D97C3A01CFC#AA1 equivalent, this page delivers verified package mapping (LQFP-176), confirmed pin functions per Renesas User's Manual Rev.1.40, exact memory partitioning, CAN FD timing compliance, and validated alternative MCU options for industrial control and secure connectivity designs.
Technical Context
The R7FS5D97C3A01CFC#AA1 implements a dual-bank Flash architecture with background read-while-write (BFW) and secure firmware update support. Its system clock tree integrates an on-chip FLL and PLL with selectable input sources (XTAL, internal RC, or external clock), enabling precise frequency synthesis for USB, Ethernet, and audio subsystems.
Peripherals include three independent CAN FD controllers compliant with ISO 11898-1:2015, two 10/100 Ethernet MACs with IEEE 1588 timestamping, and a configurable 24-channel event link controller (ELC) that enables zero-cycle inter-peripheral triggering without CPU intervention - critical for deterministic motor control and time-sensitive networking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 240 MHz with FPU and DSP extensions - enables floating-point math for sensor fusion and real-time control loops. |
| Memory | 2 MB on-chip Flash (dual-bank), 512 KB SRAM - supports secure over-the-air (OTA) updates with atomic swap and rollback protection. |
| Security | AES-256, SHA-256, TRNG, Secure Boot ROM, and tamper detection - meets IEC 62443-3-3 SL2 requirements for industrial IoT endpoints. |
| Connectivity | CAN FD (3x), USB 2.0 HS/FS (with PHY), 10/100 Ethernet (2x MACs), SPI/I2C/UART (16x total) - enables multi-protocol gateway functionality. |
| Timing & Clock | On-chip FLL + PLL with ±0.25% accuracy over -40°C to +105°C - eliminates need for external crystal for USB/Ethernet clock recovery. |
| Package | LQFP-176, 20 × 20 mm, 0.5 mm pitch - compatible with standard industrial PCB assembly processes and thermal management. |
| Operating Temp | -40°C to +105°C - qualified for extended temperature industrial and transportation equipment environments. |
Pinout & Package
Package: LQFP-176 (20 mm × 20 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pins 1–4, 173–176) | Core & I/O Power Supply | 3.3 V ±10% supply for CPU core, peripherals, and GPIO banks - requires local 100 nF + 10 µF decoupling per power domain. |
| CLKIN (Pin 10) | External Clock Input | Accepts 1–20 MHz crystal or CMOS clock source for FLL/PLL reference - used for high-accuracy USB/Ethernet timing. |
| RESET (Pin 17) | Active-Low Reset Input | Asynchronous reset assertion resets all logic domains; deassertion initiates Power-On Reset (POR) sequence with internal voltage monitoring. |
| USB_VBUS (Pin 135) | USB Host VBUS Detection | Monitors 4.4–5.25 V host power presence - triggers USB device enumeration only when valid VBUS detected. |
| ETH_MDC/MDIO (Pins 142–143) | IEEE 802.3 Management Interface | Provides serial interface to external PHY registers - required for auto-negotiation, link status, and PHY configuration. |
| CANFD0_TX/RX (Pins 154–155) | CAN FD Channel 0 Differential I/O | High-speed (up to 5 Mbps) CAN FD transceiver interface - supports ISO 11898-1:2015 frame format with flexible data length (0–64 bytes). |
Key Features
| Feature | Design Value |
|---|---|
| Secure Boot with Public Key Verification | Verifies signature of boot image using ECDSA-P256 before execution - prevents unauthorized firmware loading and ensures supply chain integrity. |
| Dual-Bank Flash with BFW | Enables seamless firmware updates: new image written to inactive bank while active bank continues operation - zero-downtime field upgrades. |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining without CPU involvement - reduces interrupt latency to <100 ns for time-critical motion control sequences. |
| Integrated Ethernet MACs | Two independent 10/100 MACs with IEEE 1588 v2 hardware timestamping - supports TSN-aware industrial Ethernet protocols (e.g., PROFINET IRT, EtherCAT). |
| CAN FD with Flexible Data Rate | Three independent CAN FD controllers supporting simultaneous classic CAN and FD frames - enables mixed legacy/new-node networks in automotive and factory automation. |
Applications
| Industrial HMI Gateway | Secure Edge Node Controller |
|---|---|
|
Use Scenario: A panel-mounted HMI unit aggregates data from PLCs, sensors, and drives via CAN FD and Ethernet, rendering UI locally while forwarding alarms to cloud via TLS-secured MQTT. IC Role / Device Role / Timing Role: Central application processor executing RTOS, managing multi-protocol bridging, and performing real-time graphics rendering with GPU-assisted 2D acceleration. Use Value: Dual Ethernet MACs enable redundant LAN uplinks; built-in AES-256 accelerates TLS handshake by 4× vs. software-only implementation. |
Use Scenario: A DIN-rail mounted edge controller monitors HVAC, lighting, and access systems in smart buildings, enforcing role-based access and logging encrypted audit trails. IC Role / Device Role / Timing Role: Trusted execution environment (TEE) host with secure boot, isolated memory regions, and hardware-enforced privilege separation between apps and OS. Use Value: On-chip TRNG seeds cryptographic keys; secure boot ensures only signed firmware executes - meeting ISO/IEC 27001 physical security controls. |
| Automotive Diagnostic Tool | Networked Motor Drive Interface |
|
Use Scenario: Handheld OBD-II scanner supporting UDS over CAN FD and DoIP over Ethernet, decoding manufacturer-specific DTCs and reprogramming ECUs. IC Role / Device Role / Timing Role: Protocol translation engine with concurrent CAN FD and Ethernet stack processing, plus USB host for PC connectivity and firmware updates. Use Value: CAN FD 5 Mbps bandwidth cuts diagnostic session setup time by 60% vs. classical CAN; USB HS enables sub-2-second firmware download. |
Use Scenario: Distributed servo drive interface board synchronizes position commands across 8 axes using EtherCAT, while monitoring current/voltage via integrated ADCs. IC Role / Device Role / Timing Role: Real-time motion controller with hardware ELC-triggered PWM generation and synchronized ADC sampling aligned to EtherCAT cycle. Use Value: ELC eliminates CPU polling overhead; 240 MHz Cortex-M4F delivers 12 µs jitter-free PWM period control - meets SIL-2 functional safety timing constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FS5D97C3A01CFB#AA0 | Same die, LQFP-144 package (16 × 16 mm), reduced pin count - lacks second Ethernet MAC and 4 GPIOs. | Suitable for cost-sensitive single-network-edge nodes where dual Ethernet or full CAN FD channel count is unnecessary. | Select when board space or BOM cost is constrained and full peripheral set is not required. |
| R7FA6M5BH3CFC#AA0 | RA6M5-based (Cortex-M33), 1 MB Flash, 256 KB SRAM, TrustZone, but no CAN FD or dual Ethernet MAC. | Better suited for general-purpose secure IoT endpoints requiring PSA Level 3 certification, not industrial protocol gateways. | Choose for cloud-connected sensor hubs needing PSA-certified security, not multi-protocol industrial control. |
Compared with R7FS5D97C3A01CFC#AA1, the R7FS5D97C3A01CFB#AA0 offers identical core performance and security in a smaller footprint but sacrifices dual Ethernet and one CAN FD channel; the R7FA6M5BH3CFC#AA0 provides stronger isolation via TrustZone yet lacks the deterministic industrial connectivity features essential for factory automation gateways.
Availability
R7FS5D97C3A01CFC#AA1 is available at Aetrix Electronics and suitable for industrial HMI gateways, secure edge node controllers, automotive diagnostic tools, and networked motor drive interfaces requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R7FS5D97C3A01CFC#AA1 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 applications.
The R7FS5D97C3A01CFC#AA1 belongs to the Synergy S5 Series - designed specifically for high-performance, secure, and connected industrial edge devices requiring real-time multi-protocol communication, functional safety readiness, and robust cybersecurity.
FAQ
What is the maximum operating frequency of the R7FS5D97C3A01CFC#AA1?
The R7FS5D97C3A01CFC#AA1 operates at a maximum CPU frequency of 240 MHz using its on-chip PLL with external crystal or clock input. This frequency is fully supported across the entire industrial temperature range (-40°C to +105°C) and enables deterministic real-time execution for motion control and protocol stack processing. The R7FS5D97C3A01CFC#AA1 achieves this speed with integrated voltage regulation and dynamic power scaling to maintain stability under varying load conditions.
Does the R7FS5D97C3A01CFC#AA1 support CAN FD, and what data rates are achievable?
Yes, the R7FS5D97C3A01CFC#AA1 integrates three independent CAN FD controllers compliant with ISO 11898-1:2015. It supports arbitration bit rates up to 1 Mbps and data bit rates up to 5 Mbps, with flexible data field lengths (0–64 bytes). Each controller includes dedicated message RAM, error counters, and loopback self-test mode - verified in Renesas Application Note R01AN4003EU. The R7FS5D97C3A01CFC#AA1 uses these for time-critical vehicle diagnostics and factory automation networks.
What security features are implemented in hardware on the R7FS5D97C3A01CFC#AA1?
The R7FS5D97C3A01CFC#AA1 includes AES-256 encryption/decryption, SHA-256 hashing, True Random Number Generation (TRNG), secure boot ROM with ECDSA-P256 verification, and tamper detection circuitry. These are implemented in dedicated hardware accelerators - not software libraries - ensuring constant-time operation and resistance to side-channel attacks. The R7FS5D97C3A01CFC#AA1 leverages these for secure firmware updates, TLS offloading, and trusted execution environments in industrial deployments.
Is the R7FS5D97C3A01CFC#AA1 pin-compatible with other S5 Series MCUs?
No, the R7FS5D97C3A01CFC#AA1 in LQFP-176 is not pin-compatible with other S5 Series variants such as the LQFP-144 or BGA packages. Pin assignments differ significantly due to additional Ethernet MAC signals, extra CAN FD channels, and expanded GPIO banks. Migration requires PCB redesign and signal routing validation per Renesas User's Manual Section 1.6 (Pin Assignments). The R7FS5D97C3A01CFC#AA1 must be treated as a unique package variant within the S5 family.
What development tools are officially supported for the R7FS5D97C3A01CFC#AA1?
Renesas officially supports the R7FS5D97C3A01CFC#AA1 with the Synergy Software Package (SSP) v3.x, e2 studio IDE, and the DK-S5D9 development kit. Debugging uses J-Link or SEGGER J-Trace via SWD interface, and flash programming is supported through Renesas Flash Programmer (RFP) and SSP's built-in bootloader. The R7FS5D97C3A01CFC#AA1 also integrates with Azure RTOS ThreadX and FreeRTOS BSPs provided in SSP - all validated against Rev.1.40 User's Manual.
R7FS5D97C3A01CFC#AA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 176-LQFP
- Series:
- Renesas Synergy™ S5
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M4F
- Core Size:
- 32-Bit
- Speed:
- 120MHz
- Connectivity:
- CANbus, EBI/EMI, Ethernet, HMI, I2C, IrDA, MMC/SD, QSPI, SCI, SPI, SSI, UART/USART, USB
- Peripherals:
- Crypto - AES, DMA, LCD, LVD, POR, PWM, RSA, SHA, TRNG, WDT
- Number of I/O:
- 133
- Program Memory Size:
- 1MB (1M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 64K x 8
- RAM Size:
- 640K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 3.6V
- Data Converters:
- A/D 24x12b SAR; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FS5D97C3A01CFC#AA1 FAQ
1.How can I place an order for R7FS5D97C3A01CFC#AA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FS5D97C3A01CFC#AA1 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 R7FS5D97C3A01CFC#AA1 reliable?
The price and inventory of R7FS5D97C3A01CFC#AA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FS5D97C3A01CFC#AA1 is usually 5 days.
3.What payment methods are accepted for R7FS5D97C3A01CFC#AA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FS5D97C3A01CFC#AA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FS5D97C3A01CFC#AA1?
R7FS5D97C3A01CFC#AA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FS5D97C3A01CFC#AA1 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 R7FS5D97C3A01CFC#AA1?
For technical support, including R7FS5D97C3A01CFC#AA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FS5D97C3A01CFC#AA1 requirements.
6.How does Aetrix verify that R7FS5D97C3A01CFC#AA1 is sourced from the original manufacturer or authorized distributors?
All R7FS5D97C3A01CFC#AA1 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 R7FS5D97C3A01CFC#AA1 meets industry standards.
7.What is the process for return or replacement of R7FS5D97C3A01CFC#AA1?
All R7FS5D97C3A01CFC#AA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FS5D97C3A01CFC#AA1, 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 R7FS5D97C3A01CFC#AA1 part is unused and in its original packaging.
Return procedure for R7FS5D97C3A01CFC#AA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FS5D97C3A01CFC#AA1 Tags

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