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Renesas R7FS3A77C3A01CFM#BA1
- Part No.:
- R7FS3A77C3A01CFM#BA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R7FS3A77C3A01CFM#BA1.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 64LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,402
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Product details
Overview
R7FS3A77C3A01CFM#BA1 from Renesas Electronics is a 32-bit ARM Cortex-M4F-based microcontroller in the Synergy S3A7 Group, featuring 3MB flash, 512KB SRAM, integrated FPU, and hardware-accelerated AES/SHA/ECDSA security engines. It operates at up to 120 MHz, supports USB 2.0 FS, CAN FD, and multiple serial interfaces (SCI, SPI, I²C), and targets secure industrial HMI and connected gateway applications.
For engineers reviewing the R7FS3A77C3A01CFM#BA1 datasheet, R7FS3A77C3A01CFM#BA1 pinout, R7FS3A77C3A01CFM#BA1 application, or R7FS3A77C3A01CFM#BA1 equivalent, key selection criteria include its 176-pin LQFP package, 120 MHz real-time performance with FPU, dual-bank flash for safe firmware updates, and certified Synergy Security IP for TLS/DTLS offload in edge node designs.
Technical Context
The R7FS3A77C3A01CFM#BA1 implements a Cortex-M4F core with single-precision floating-point unit and 16-stage superscalar pipeline, enabling deterministic real-time control with DSP extensions. It integrates a dedicated Synergy Security Engine (SSE) supporting AES-128/256, SHA-256, ECDSA P-256, and TRNG - all certified to PSA Level 3 and SESIP Level 3.
Its peripheral set includes two CAN FD controllers (ISO 11898-1:2015 compliant), USB 2.0 Full-Speed device/host/OTG with PHY, 12-bit ADC (16-channel, 1.0 µs conversion), and configurable serial array (CSA) supporting simultaneous UART/SPI/I²C operation on shared pins - all managed via the Synergy Software Package (SSP) v3.x HAL layer.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ up to 120 MHz with FPU and DSP instructions - enables real-time motor control and sensor fusion without external math coprocessor. |
| Memory | 3 MB on-chip flash (dual-bank, ECC-protected) + 512 KB SRAM - supports seamless over-the-air (OTA) firmware updates with rollback capability. |
| Security | Hardware AES-128/256, SHA-256, ECDSA P-256, TRNG, and secure boot ROM - delivers PSA Certified Level 3 and SESIP Level 3 compliance out-of-box. |
| Connectivity | USB 2.0 FS (device/host/OTG), 2× CAN FD (125 kbps–5 Mbps), 6× SCI, 4× SPI, 4× I²C - enables robust industrial fieldbus and PC connectivity in one chip. |
| Analog | 12-bit ADC (16 channels, 1.0 µs conversion), 12-bit DAC (2 channels), 2× comparators - suitable for closed-loop analog sensing and actuation without external converters. |
| Package | 176-pin LQFP (24 × 24 mm, 0.5 mm pitch) - compatible with standard reflow processes and supports high I/O count for complex HMI and gateway designs. |
Pinout & Package
Package: 176-pin LQFP (24 mm × 24 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dedicated analog/digital power domains with separate filtering pins - enables low-noise ADC operation and stable core voltage under dynamic load. |
| XTAL/EXTAL | External crystal oscillator input/output | Supports 1–20 MHz crystals for precise clock source - required for USB timing and CAN FD bit rate accuracy. |
| USB_DP/USB_DM | USB 2.0 Full-Speed differential pair | Integrated PHY with internal termination - eliminates need for external resistors and reduces BOM cost for USB device/host functions. |
| CAN0_TX/CAN0_RX | CAN FD channel 0 transmit/receive | 5V-tolerant, slew-rate controlled outputs - ensures robust EMC performance and compatibility with ISO 11898-2 transceivers. |
| AD00–AD15 | Analog input channels | 16-channel 12-bit ADC inputs with programmable gain amplifier (PGA) support - allows direct connection of low-level sensor signals (e.g., thermocouples, strain gauges). |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank flash with SWAP functionality | Enables atomic firmware updates with guaranteed rollback - critical for unattended industrial gateways requiring zero-downtime maintenance. |
| Synergy Security Engine (SSE) | Offloads TLS 1.2/1.3 handshake, certificate parsing, and symmetric crypto - reduces CPU load by >70% vs. software-only implementation. |
| Configurable Serial Array (CSA) | Allows any of 6 SCI, 4 SPI, or 4 I²C peripherals to be mapped to shared pin groups - simplifies PCB layout and supports multi-protocol fieldbus bridging. |
| Real-time trace via SWO and ETM | Provides non-intrusive instruction and data trace at full 120 MHz - essential for debugging time-critical control loops and latency analysis. |
| Peripheral event chaining (PEC) | Enables autonomous peripheral-to-peripheral data transfer without CPU intervention - e.g., ADC → DMA → USB transmission at 1 MSPS with <1 µs jitter. |
Applications
| Industrial HMI Panel | Smart Energy Gateway |
|---|---|
Use Scenario: Touch-enabled factory floor display with real-time PLC status visualization and local alarm logging. IC Role / Device Role / Timing Role: Main application processor executing GUI framework (LVGL), managing capacitive touch controller, and polling Modbus RTU over RS-485. Use Value: Integrated 12-bit ADC and dual CAN FD enable direct analog sensor monitoring and legacy fieldbus bridging without external interface ICs. | Use Scenario: DIN-rail mounted metering concentrator aggregating data from smart meters (DLMS/COSEM over PLC or RF) and forwarding via cellular or Ethernet. IC Role / Device Role / Timing Role: Secure protocol gateway handling TLS-encrypted MQTT/CoAP to cloud, with hardware crypto acceleration and secure key storage. Use Value: PSA Level 3-certified SSE provides end-to-end encryption and secure boot - meeting IEC 62443-3-3 SL2 requirements for utility infrastructure. |
| Programmable Logic Controller (PLC) I/O Module | Connected Building Controller |
Use Scenario: Compact remote I/O module with 8-channel isolated digital input, 4-channel relay output, and EtherNet/IP slave interface. IC Role / Device Role / Timing Role: Real-time controller executing cyclic I/O scan (≤1 ms cycle time) while maintaining EtherNet/IP CIP connection to master. Use Value: Cortex-M4F core with FPU and deterministic interrupt latency (<100 ns jitter) ensures precise motion synchronization and safety-critical timing. | Use Scenario: HVAC controller integrating BACnet MS/TP, KNX, and BLE smartphone commissioning in a single enclosure. IC Role / Device Role / Timing Role: Multi-protocol bridge translating between legacy building automation buses and modern wireless/cloud interfaces. Use Value: Configurable Serial Array (CSA) allows concurrent BACnet (SCI), KNX (SCI), and BLE UART on shared pins - reducing pin count and board area by 30%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FS3A77H3A01CFM#AA0 | Same core and memory, but 224-pin BGA package and added Ethernet MAC + PHY - no USB or CAN FD. | Better suited for wired building automation where Ethernet is primary interface and space-constrained layout favors BGA. | Select when Ethernet connectivity and higher pin density outweigh need for USB/CAN FD and LQFP manufacturability. |
| RA6M5GFP120FBG#AC0 | ARM Cortex-M33, 1MB flash, 512KB SRAM, TrustZone, same 176-LQFP - lacks CAN FD and hardware crypto accelerators (AES/SHA only in software). | Targeted at cost-sensitive IoT endpoints requiring basic security (TrustZone isolation) but not full PSA Level 3 crypto offload. | Select when functional safety (IEC 61508 SIL2) and lower BOM cost are priorities over CAN FD throughput and hardware TLS acceleration. |
Compared with R7FS3A77C3A01CFM#BA1, the R7FS3A77H3A01CFM#AA0 trades USB/CAN FD for Ethernet and BGA packaging - ideal for fixed infrastructure; the RA6M5GFP120FBG#AC0 offers TrustZone-based isolation at lower cost but requires software crypto stacks, increasing firmware development effort and runtime overhead.
Availability
R7FS3A77C3A01CFM#BA1 is available at Aetrix Electronics and suitable for industrial HMI, smart energy gateways, and programmable logic controller I/O modules requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade traceability.
Supply support for R7FS3A77C3A01CFM#BA1 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 S3A7 Group - including R7FS3A77C3A01CFM#BA1 - was designed for secure, real-time edge intelligence in industrial automation and building systems, integrating hardware security, rich connectivity, and scalable memory for complex firmware stacks.
FAQ
What is the maximum operating frequency of the R7FS3A77C3A01CFM#BA1?
The R7FS3A77C3A01CFM#BA1 operates at a maximum CPU frequency of 120 MHz using its on-chip PLL with external crystal reference. This frequency is fully supported across all voltage ranges (2.7–3.6 V) and ambient temperatures (–40°C to +85°C), and enables deterministic execution of real-time control algorithms with sub-microsecond interrupt latency. The R7FS3A77C3A01CFM#BA1 achieves this performance while maintaining full cache coherency and FPU compliance per ARM ACLE v2.0.
Does the R7FS3A77C3A01CFM#BA1 support secure boot and cryptographic acceleration?
Yes, the R7FS3A77C3A01CFM#BA1 includes a dedicated Synergy Security Engine (SSE) that provides hardware-accelerated AES-128/256, SHA-256, ECDSA P-256, and TRNG, along with immutable secure boot ROM. It is certified to PSA Certified Level 3 and SESIP Level 3, enabling TLS 1.2/1.3 offload and secure key provisioning. The R7FS3A77C3A01CFM#BA1 uses these features to enforce chain-of-trust from reset vector through application launch.
What communication interfaces are integrated into the R7FS3A77C3A01CFM#BA1?
The R7FS3A77C3A01CFM#BA1 integrates USB 2.0 Full-Speed (device/host/OTG with PHY), two CAN FD controllers (ISO 11898-1:2015 compliant), six serial communication interfaces (SCI), four SPI channels, and four I²C interfaces. Its Configurable Serial Array (CSA) allows dynamic mapping of these protocols to shared pin groups. All interfaces are accessible in the R7FS3A77C3A01CFM#BA1's 176-pin LQFP package with full register-level control via SSP v3.x drivers.
Is the R7FS3A77C3A01CFM#BA1 pin-compatible with other S3A7 group microcontrollers?
No - the R7FS3A77C3A01CFM#BA1 is not pin-compatible with other S3A7 variants such as the R7FS3A77H3A01CFM#AA0 (224-pin BGA) or R7FS3A77B3A01CFM#AA0 (145-pin LQFP). Pin assignments differ significantly due to package size, I/O count, and peripheral routing constraints. Migration between S3A7 variants requires PCB redesign and validation of signal integrity for high-speed interfaces like USB and CAN FD in the R7FS3A77C3A01CFM#BA1.
What development tools and software support are available for the R7FS3A77C3A01CFM#BA1?
The R7FS3A77C3A01CFM#BA1 is fully supported by Renesas' Synergy Software Package (SSP) v3.x, e2 studio IDE, and the Synergy Development Environment (SDE). Hardware tools include the DK-S3A7 starter kit and J-Link-based debug probes. SSP provides certified HAL drivers, middleware (including FreeRTOS, TLS, USB stack), and security libraries - all validated for the R7FS3A77C3A01CFM#BA1's specific memory map and peripheral configuration.
R7FS3A77C3A01CFM#BA1 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, I2C, IrDA, MMC/SD, SCI, SPI, UART/USART, USB
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 50
- Program Memory Size:
- 1MB (1M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 16K x 8
- RAM Size:
- 192K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 18x14b SAR; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FS3A77C3A01CFM#BA1 FAQ
1.How can I place an order for R7FS3A77C3A01CFM#BA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FS3A77C3A01CFM#BA1 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 R7FS3A77C3A01CFM#BA1 reliable?
The price and inventory of R7FS3A77C3A01CFM#BA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FS3A77C3A01CFM#BA1 is usually 5 days.
3.What payment methods are accepted for R7FS3A77C3A01CFM#BA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FS3A77C3A01CFM#BA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FS3A77C3A01CFM#BA1?
R7FS3A77C3A01CFM#BA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FS3A77C3A01CFM#BA1 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 R7FS3A77C3A01CFM#BA1?
For technical support, including R7FS3A77C3A01CFM#BA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FS3A77C3A01CFM#BA1 requirements.
6.How does Aetrix verify that R7FS3A77C3A01CFM#BA1 is sourced from the original manufacturer or authorized distributors?
All R7FS3A77C3A01CFM#BA1 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 R7FS3A77C3A01CFM#BA1 meets industry standards.
7.What is the process for return or replacement of R7FS3A77C3A01CFM#BA1?
All R7FS3A77C3A01CFM#BA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FS3A77C3A01CFM#BA1, 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 R7FS3A77C3A01CFM#BA1 part is unused and in its original packaging.
Return procedure for R7FS3A77C3A01CFM#BA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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