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Renesas R7FS3A77C3A01CFP#BA1
- Part No.:
- R7FS3A77C3A01CFP#BA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R7FS3A77C3A01CFP#BA1.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 100LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:720
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Product details
Overview
R7FS3A77C3A01CFP#BA1 from Renesas Electronics is a 32-bit ARM Cortex-M4F-based microcontroller in the Synergy S3A7 Group, featuring 2 MB flash, 512 KB SRAM, integrated FPU, and hardware AES/SHA/ECDSA security accelerators. It operates at up to 120 MHz, supports USB 2.0 FS host/device, CAN FD, and includes 12-bit ADC with 32 channels - deployed in industrial HMI and secure IoT edge gateways.
For engineers reviewing the R7FS3A77C3A01CFP#BA1 datasheet, R7FS3A77C3A01CFP#BA1 pinout, R7FS3A77C3A01CFP#BA1 application, or R7FS3A77C3A01CFP#BA1 equivalent, key selection criteria include its dual-bank flash for safe firmware updates, configurable real-time OS support via SSP, CAN FD timing compliance, and certified secure boot implementation.
Technical Context
The R7FS3A77C3A01CFP#BA1 implements a tightly coupled ARM Cortex-M4F core with single-precision FPU and MPU, executing from on-chip flash with 120 MHz max frequency and 1.8–3.6 V supply range. Its system architecture integrates a multi-layer AHB/APB bus matrix, 2 MB dual-bank flash with ECC and SWAP functionality, and 512 KB SRAM with parity protection.
Peripheral integration includes USB 2.0 Full-Speed controller (host/device/OTG), two CAN FD controllers compliant with ISO 11898-1:2015, 12-bit 1 Msps ADC with analog comparator and window watchdog, and hardware cryptographic engines supporting AES-128/256, SHA-256, and ECDSA P-256 - all managed via Renesas Synergy Software Package (SSP) v3.x APIs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F with FPU and MPU - enables deterministic real-time control with floating-point math acceleration for motor control and sensor fusion. |
| Max Operating Frequency | 120 MHz - delivers 150 DMIPS performance while maintaining low power consumption in active mode (120 μA/MHz typical). |
| Memory | 2 MB dual-bank flash + 512 KB SRAM - supports seamless firmware updates via bank swap without application interruption. |
| Security Features | AES-128/256, SHA-256, ECDSA P-256 hardware accelerators - offloads crypto operations to dedicated engines, reducing CPU load and improving TLS handshake latency. |
| Communication Interfaces | USB 2.0 FS host/device/OTG, 2× CAN FD, 6× UART, 3× SPI, 3× I²C - enables robust fieldbus connectivity and secure device provisioning over USB/CAN. |
| Analog Peripherals | 12-bit 1 Msps ADC (32 ch), 12-bit DAC (2 ch), analog comparator - supports high-resolution sensor acquisition and closed-loop analog output control. |
| Package | LQFP-144 (20 × 20 mm, 0.5 mm pitch) - provides mechanical stability and thermal performance suitable for industrial PCB layouts with mixed-signal routing. |
Pinout & Package
LQFP-144 package with 0.5 mm pitch, 20 mm × 20 mm body size, and exposed thermal pad - optimized for industrial temperature operation (−40°C to +105°C) and ESD robustness (±4 kV HBM).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dedicated analog/digital power domains with separate decoupling requirements - ensures noise isolation between MCU logic and ADC/DAC subsystems. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | Configurable as GPIO, alternate function (UART/SPI/I²C), or peripheral signals - supports programmable drive strength, slew rate, and pull-up/down via PFS registers. |
| USB_VBUS, USB_DP, USB_DM | USB 2.0 interface | Full-speed differential pair with internal transceivers - eliminates need for external PHY; VBUS detection enables host/device role negotiation. |
| CAN0_TX, CAN0_RX, CAN1_TX, CAN1_RX | CAN FD communication | High-speed differential signaling compliant with ISO 11898-1:2015 - supports data rates up to 5 Mbps with flexible bit timing configuration. |
| AD00–AD31 | Analog input channels | Single-ended or differential inputs mapped to 12-bit ADC - supports simultaneous sampling across multiple channels using hardware triggers. |
| CLKIN, CLKOUT | External clock interface | Supports crystal (1–20 MHz) or external oscillator input - feeds PLL/FLL for precise clock generation with ±0.25% accuracy over temperature. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank flash with SWAP | Enables zero-downtime firmware updates by switching active bank during runtime - critical for unattended industrial gateways. |
| Hardware crypto accelerators | Reduces AES-256 encryption latency to <10 μs per 16-byte block - accelerates secure boot verification and OTA update decryption. |
| CAN FD with flexible data rate | Supports arbitration phase at 1 Mbps and data phase up to 5 Mbps - increases payload throughput by 4× vs classical CAN in automotive diagnostics. |
| Configurable real-time OS support | SSP-integrated FreeRTOS and ThreadX drivers with pre-certified safety packages - simplifies functional safety certification (IEC 61508 SIL2). |
| USB 2.0 FS host/device/OTG | Integrated PHY and DMA-controlled endpoint buffers - allows direct connection to USB peripherals (keyboards, storage) without external hub ICs. |
Applications
| Industrial HMI Panels | Secure IoT Edge Gateways |
|---|---|
Use Scenario: Touch-enabled factory floor displays with local PLC interfacing and remote cloud telemetry. IC Role / Device Role / Timing Role: Main application processor managing GUI rendering, CAN FD fieldbus polling, and TLS-secured MQTT transmission. Use Value: Dual-bank flash enables silent firmware patching during scheduled maintenance windows; hardware crypto ensures sub-50 ms TLS handshake for reliable cloud reconnection. | Use Scenario: Field-deployed gateway aggregating Modbus RTU sensors and forwarding encrypted data to AWS IoT Core. IC Role / Device Role / Timing Role: Secure protocol translator with hardware-accelerated AES-GCM encryption and time-synchronized CAN FD timestamping. Use Value: ECDSA P-256 signature generation in <15 ms validates firmware authenticity; 120 MHz core handles concurrent TLS, Modbus parsing, and CAN message scheduling. |
| Automotive Diagnostic Tools | Programmable Logic Controllers (PLC) |
Use Scenario: Handheld OBD-II scanners supporting UDS over CAN FD for EV battery management system diagnostics. IC Role / Device Role / Timing Role: Real-time diagnostic controller executing ISO 14229-1 UDS services with precise CAN FD timing and secure session key exchange. Use Value: CAN FD 5 Mbps data phase reduces 2 KB diagnostic dump transfer time from 160 ms (classical CAN) to 32 ms; hardware SHA-256 verifies ECU firmware signatures. | Use Scenario: Compact DIN-rail mounted PLC executing ladder logic with analog I/O conditioning and EtherCAT slave interface. IC Role / Device Role / Timing Role: Deterministic real-time controller running IEC 61131-3 code with sub-100 μs I/O scan cycles and synchronized ADC sampling. Use Value: FPU accelerates PID loop calculations; 12-bit ADC with hardware averaging achieves 14-bit effective resolution for precision current sensing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FS3A77H3A01CFB#AA0 | Same S3A7 core, but 176-pin LQFP package with additional Ethernet MAC and extra GPIOs. | Suitable for applications requiring 10/100 Mbps Ethernet connectivity and higher I/O count. | Select when board layout accommodates larger footprint and Ethernet is mandatory; not pin-compatible with R7FS3A77C3A01CFP#BA1. |
| R7FA6M2AF3CFP#AA0 | RA6M2-series Arm Cortex-M4F MCU with 1 MB flash, no CAN FD, but added TrustZone and enhanced security IP. | Better suited for cloud-connected devices requiring PSA Certified Level 2 security, but lacks CAN FD and dual-bank flash. | Choose for high-security IoT endpoints where CAN FD is unnecessary and PSA certification is required; different pinout and peripheral set. |
Compared with R7FS3A77C3A01CFP#BA1, the R7FS3A77H3A01CFB#AA0 adds Ethernet and I/O at the cost of larger package and no security accelerator enhancements, while the R7FA6M2AF3CFP#AA0 trades CAN FD and dual-bank flash for PSA-certified TrustZone but offers stronger long-term security roadmap alignment.
Availability
R7FS3A77C3A01CFP#BA1 is available at Aetrix Electronics and suitable for industrial HMI panels, secure IoT edge gateways, automotive diagnostic tools, and compact PLCs requiring stable component supply across extended product lifecycles.
Supply support for R7FS3A77C3A01CFP#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 R7FS3A77C3A01CFP#BA1 - was designed for secure, real-time industrial edge applications requiring integrated connectivity (CAN FD, USB), hardware cryptography, and functional safety support.
FAQ
What is the maximum operating frequency and voltage range of the R7FS3A77C3A01CFP#BA1?
The R7FS3A77C3A01CFP#BA1 operates at a maximum frequency of 120 MHz across a supply voltage range of 1.8 V to 3.6 V. Its core and peripherals are fully specified for this range, with typical active-mode current consumption of 120 μA/MHz at 3.3 V. The device includes internal voltage regulators and brown-out detection circuitry to maintain stable operation under varying load and input conditions. All timing parameters in the datasheet assume operation within these validated limits.
Does the R7FS3A77C3A01CFP#BA1 support CAN FD, and what data rates are achievable?
Yes, the R7FS3A77C3A01CFP#BA1 integrates two independent CAN FD controllers compliant with ISO 11898-1:2015. It supports arbitration bit rates up to 1 Mbps and data phase bit rates up to 5 Mbps, with programmable bit timing and flexible data length (up to 64 bytes per frame). The CAN FD modules include dedicated message RAM, hardware filtering, and timestamping capabilities - all accessible via Renesas Synergy Software Package (SSP) drivers.
How does the dual-bank flash architecture in the R7FS3A77C3A01CFP#BA1 enable safe firmware updates?
The R7FS3A77C3A01CFP#BA1 features 2 MB of on-chip flash divided into two independent banks (Bank A and Bank B), each 1 MB in size. This allows one bank to execute application code while the other receives a new firmware image via bootloader - then atomically switch execution using the SWAP command. The process requires no external memory or application interruption, meeting IEC 62443-3-3 requirements for secure firmware updates in industrial systems.
What hardware security accelerators are integrated into the R7FS3A77C3A01CFP#BA1?
The R7FS3A77C3A01CFP#BA1 includes dedicated hardware accelerators for AES-128/256 (ECB/CBC/CTR/GCM modes), SHA-256, and ECDSA P-256 signing/verification. These accelerators operate independently of the CPU core, reducing encryption latency to under 10 μs per 16-byte AES block and enabling full TLS 1.2 handshake completion in under 50 ms. All crypto keys are protected by the on-chip Secure Crypto Engine (SCE) with tamper-resistant key storage.
Is the R7FS3A77C3A01CFP#BA1 supported by the Renesas Synergy Software Package (SSP)?
Yes, the R7FS3A77C3A01CFP#BA1 is fully supported by Renesas Synergy Software Package (SSP) v3.x, including certified middleware for FreeRTOS, ThreadX, USB Host/Device, CAN FD, TLS, and secure boot. SSP provides HAL drivers, configuration tools (Synergy Configurator), and pre-certified safety packages for IEC 61508 SIL2. Development is enabled through e2 studio IDE with built-in debug probe support for the R7FS3A77C3A01CFP#BA1's SWD interface.
R7FS3A77C3A01CFP#BA1 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, IrDA, MMC/SD, QSPI, SCI, SPI, UART/USART, USB
- Peripherals:
- DMA, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 82
- 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 25x14b SAR; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FS3A77C3A01CFP#BA1 FAQ
1.How can I place an order for R7FS3A77C3A01CFP#BA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FS3A77C3A01CFP#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 R7FS3A77C3A01CFP#BA1 reliable?
The price and inventory of R7FS3A77C3A01CFP#BA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FS3A77C3A01CFP#BA1 is usually 5 days.
3.What payment methods are accepted for R7FS3A77C3A01CFP#BA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FS3A77C3A01CFP#BA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FS3A77C3A01CFP#BA1?
R7FS3A77C3A01CFP#BA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FS3A77C3A01CFP#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 R7FS3A77C3A01CFP#BA1?
For technical support, including R7FS3A77C3A01CFP#BA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FS3A77C3A01CFP#BA1 requirements.
6.How does Aetrix verify that R7FS3A77C3A01CFP#BA1 is sourced from the original manufacturer or authorized distributors?
All R7FS3A77C3A01CFP#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 R7FS3A77C3A01CFP#BA1 meets industry standards.
7.What is the process for return or replacement of R7FS3A77C3A01CFP#BA1?
All R7FS3A77C3A01CFP#BA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FS3A77C3A01CFP#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 R7FS3A77C3A01CFP#BA1 part is unused and in its original packaging.
Return procedure for R7FS3A77C3A01CFP#BA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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