Renesas R7FS5D37A3A01CLJ#AC0
- Part No.:
- R7FS5D37A3A01CLJ#AC0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-TFLGA
- Datasheet:
-
R7FS5D37A3A01CLJ#AC0.pdf
- Description:
- SYNERGY MCU PLATFORM S5D3 256K 1
- Quantity:
- Payment:

- Shipping:

Inventory:416
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Product details
Overview
R7FS5D37A3A01CLJ#AC0 from Renesas Electronics is a 32-bit ARM Cortex-M4F-based microcontroller in the Synergy S5 Series, featuring 2 MB flash, 512 KB SRAM, integrated FPU, AES-256/SHA-256 crypto acceleration, and dual CAN FD interfaces. It operates at up to 180 MHz and targets secure industrial HMI, motor control, and gateway applications requiring real-time processing and cryptographic integrity.
For engineers reviewing the R7FS5D37A3A01CLJ#AC0 datasheet, R7FS5D37A3A01CLJ#AC0 pinout, R7FS5D37A3A01CLJ#AC0 application, or R7FS5D37A3A01CLJ#AC0 equivalent, key selection criteria include its 176-pin LQFP package, dual CAN FD with time-triggered capability, hardware TRNG, and support for Renesas Synergy Software Package (SSP) v3.x with certified security middleware.
Technical Context
The R7FS5D37A3A01CLJ#AC0 implements an ARM Cortex-M4F core with FPU and MPU, coupled with a multi-layer AHB/APB bus matrix enabling concurrent peripheral access. Its system architecture includes a dedicated security subsystem with tamper detection, secure boot ROM, and memory protection units enforcing privilege separation between trusted and untrusted code.
Peripheral integration includes two independent CAN FD controllers compliant with ISO 11898-1:2015, supporting data rates up to 5 Mbps and flexible bit timing; a 12-bit 1 Msps ADC with hardware averaging and window comparison; and a 32-channel event link controller (ELC) for deterministic, low-latency peripheral synchronization without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M4F @ 180 MHz with FPU and MPU - enables floating-point math and memory protection for safety-critical tasks. |
| Memory | 2 MB on-chip flash + 512 KB SRAM - supports large firmware images, OTA updates, and real-time buffer allocation. |
| Crypto Acceleration | AES-256, SHA-256, TRNG, and ECC - offloads encryption/decryption to dedicated hardware, reducing CPU load and latency. |
| CAN Interface | Dual CAN FD (ISO 11898-1:2015) - provides high-speed, deterministic communication for automotive-grade diagnostics and control networks. |
| ADC | 12-bit, 1 Msps, 24-channel SAR ADC with hardware averaging - delivers high-resolution analog sensing with noise suppression for motor current or temperature monitoring. |
| Package | 176-pin LQFP (24 × 24 mm, 0.5 mm pitch) - standard surface-mount footprint compatible with industrial PCB assembly processes. |
| Operating Temp | –40°C to +85°C - qualified for extended industrial environments without derating. |
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 |
|---|---|---|
| P00–P07 | Port 0 General-Purpose I/O | Configurable as GPIO, UART0/1 TX/RX, SPI0/1 MOSI/MISO/SCK, or timer outputs - supports multiplexed peripheral routing via PFS registers. |
| CLKIN / CLKOUT | External Clock Input/Output | Accepts 1–20 MHz crystal or external clock source; drives system PLL and FLL for precise clock domain generation. |
| CAN0_TX / CAN0_RX | CAN FD Channel 0 Interface | Differential signal pair for CAN FD communication up to 5 Mbps - requires external transceiver (e.g., TJA1044T) and termination. |
| VDD, VSS | Power Supply / Ground | Multiple dedicated 3.3 V supply and ground pins per power domain (VDDA, VDDIO, VDDCORE) - ensures stable analog/digital operation and reduces noise coupling. |
| RESET | Active-Low Reset Input | Asynchronous reset input with internal pull-up; asserts POR and releases only after clock stabilization - prevents metastability during power-up. |
Key Features
| Feature | Design Value |
|---|---|
| Secure Boot with Hash Verification | Validates firmware signature using SHA-256 before execution - prevents unauthorized or corrupted code from running. |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining without CPU involvement - enables sub-microsecond response for motor commutation or sensor sampling. |
| Dual CAN FD with Time-Triggered Mode | Supports synchronized message transmission across both channels - essential for deterministic gateway and chassis control systems. |
| Hardware Crypto Engine | Dedicated AES-256/SHA-256 accelerator with DMA interface - achieves >100 Mbps encryption throughput while freeing CPU cycles. |
| Flexible Clock System | Integrated PLL, FLL, and multiple clock sources (HOCO, MOCO, LOCO, external) - allows dynamic frequency scaling and failover redundancy. |
Applications
| Industrial Gateway | Secure HMI Controller |
|---|---|
Use Scenario: Aggregating Modbus RTU, CAN FD, and Ethernet data in factory automation edge nodes. IC Role / Device Role / Timing Role: Central protocol translator and real-time scheduler managing concurrent serial and network stacks. Use Value: Dual CAN FD + 10/100 Ethernet MAC + hardware crypto enables authenticated, low-latency fieldbus bridging without software overhead. |
Use Scenario: Touch-enabled operator panel with encrypted configuration storage and biometric login support. IC Role / Device Role / Timing Role: Secure UI processor handling display rendering, touch input, and TLS-secured cloud telemetry. Use Value: Integrated TRNG, AES-256, and secure boot ensure firmware integrity and protect sensitive credentials in local flash. |
| Motor Control Gateway | Condition Monitoring Node |
Use Scenario: Field-oriented control (FOC) of 3-phase BLDC motors with CAN FD feedback and predictive maintenance logging. IC Role / Device Role / Timing Role: Real-time motion controller interfacing with gate drivers, current sensors, and encoder ICs. Use Value: ELC-triggered ADC sampling and PWM update within 100 ns jitter enables precise current loop closure at 20 kHz. |
Use Scenario: Vibration and temperature sensing node transmitting encrypted FFT data over LoRaWAN or NB-IoT. IC Role / Device Role / Timing Role: Low-power sensor fusion hub with wake-on-event and secure OTA firmware updates. Use Value: Hardware crypto engine and ultra-low-power sleep modes (<1.5 µA RTC+RAM retention) extend battery life beyond 5 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FS5D37A3A01CFB#AC0 | Same core and peripherals, but in 144-pin LQFP (20 × 20 mm) with reduced I/O count (112 vs. 144 GPIO). | Suitable for space-constrained designs where CAN FD count or ADC channel count can be reduced. | Select when board layout area is limited and full I/O count is not required. |
| R7FA6M2AF3CFP#AA0 | RA6M2-based (Cortex-M4F, 100 MHz), 256 KB flash, no CAN FD, single CAN 2.0B, lower crypto feature set (AES-128 only). | Targeted at cost-sensitive industrial control where CAN FD bandwidth and advanced crypto are unnecessary. | Choose for simpler, lower-cost applications lacking time-triggered networking or secure boot requirements. |
Compared with R7FS5D37A3A01CLJ#AC0, the R7FS5D37A3A01CFB#AC0 offers identical functionality in a smaller package but fewer GPIOs, while the R7FA6M2AF3CFP#AA0 trades CAN FD, crypto depth, and clock speed for lower BOM cost and power - making it suitable only where those features are non-essential.
Availability
R7FS5D37A3A01CLJ#AC0 is available at Aetrix Electronics and suitable for industrial gateways, secure HMIs, and motor control systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R7FS5D37A3A01CLJ#AC0 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 R7FS5D37A3A01CLJ#AC0 belongs to the Synergy S5 Series - designed specifically for secure, real-time industrial edge applications demanding integrated cryptography, deterministic networking, and scalable performance across HMI, gateway, and control functions.
FAQ
What is the maximum operating frequency of the R7FS5D37A3A01CLJ#AC0?
The R7FS5D37A3A01CLJ#AC0 operates at a maximum CPU frequency of 180 MHz using its integrated PLL with external crystal or oscillator input. This frequency is sustained across the full industrial temperature range (–40°C to +85°C) under specified VDD conditions, and is validated in Renesas' electrical characteristics testing per the S5D3 datasheet Rev.1.20.
Does the R7FS5D37A3A01CLJ#AC0 support CAN FD with ISO 11898-1:2015 compliance?
Yes, the R7FS5D37A3A01CLJ#AC0 integrates two fully independent CAN FD controllers compliant with ISO 11898-1:2015, supporting data rates up to 5 Mbps, flexible data length (up to 64 bytes), and time-triggered communication mode. Each controller includes dedicated message RAM and filtering logic, and requires an external CAN FD transceiver for physical layer interfacing.
What security features are implemented in hardware on the R7FS5D37A3A01CLJ#AC0?
The R7FS5D37A3A01CLJ#AC0 includes hardware-accelerated AES-256, SHA-256, and ECC cryptographic engines; a true random number generator (TRNG); secure boot with hash verification; tamper-detection circuitry; and memory protection units (MPU) enforcing privilege separation. These features are documented in the S5D3 Security User's Manual (R01US0127EJ0120) and enabled via the Renesas Synergy Security Framework.
What development tools and software support are available for the R7FS5D37A3A01CLJ#AC0?
The R7FS5D37A3A01CLJ#AC0 is fully supported by the Renesas e2 studio IDE, Synergy Software Package (SSP) v3.6.0+, and the S5D3 Group Target Board (YRDKS5D3). SSP provides certified HAL drivers, middleware (including TLS, USB, FAT FS), and security modules aligned with PSA Certified Level 1. Debugging uses SWD via J-Link or Renesas E2 Lite emulator.
Is the R7FS5D37A3A01CLJ#AC0 pin-compatible with other S5D3 group microcontrollers?
No - the R7FS5D37A3A01CLJ#AC0 uses a 176-pin LQFP package unique to its memory/peripheral configuration within the S5D3 family. While other S5D3 variants (e.g., R7FS5D37A3A01CFB#AC0) share the same core and peripheral IP, they differ in pin count, I/O mapping, and power pin distribution. Pin compatibility must be verified per specific variant datasheet; no drop-in replacement exists across S5D3 SKUs.
R7FS5D37A3A01CLJ#AC0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-TFLGA
- Series:
- Renesas Synergy™ S5
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M4F
- Core Size:
- 32-Bit
- Speed:
- 120MHz
- Connectivity:
- CANbus, I2C, IrDA, SCI, SDH, SPI, SSI, UART, USB
- Peripherals:
- Cap Sense, DMA, LVD, POR, PWM, RTC, WDT
- Number of I/O:
- 76
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 256K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 3.6V
- Data Converters:
- A/D 19x12b SAR; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FS5D37A3A01CLJ#AC0 FAQ
1.How can I place an order for R7FS5D37A3A01CLJ#AC0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FS5D37A3A01CLJ#AC0 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 R7FS5D37A3A01CLJ#AC0 reliable?
The price and inventory of R7FS5D37A3A01CLJ#AC0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FS5D37A3A01CLJ#AC0 is usually 5 days.
3.What payment methods are accepted for R7FS5D37A3A01CLJ#AC0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FS5D37A3A01CLJ#AC0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FS5D37A3A01CLJ#AC0?
R7FS5D37A3A01CLJ#AC0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FS5D37A3A01CLJ#AC0 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 R7FS5D37A3A01CLJ#AC0?
For technical support, including R7FS5D37A3A01CLJ#AC0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FS5D37A3A01CLJ#AC0 requirements.
6.How does Aetrix verify that R7FS5D37A3A01CLJ#AC0 is sourced from the original manufacturer or authorized distributors?
All R7FS5D37A3A01CLJ#AC0 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 R7FS5D37A3A01CLJ#AC0 meets industry standards.
7.What is the process for return or replacement of R7FS5D37A3A01CLJ#AC0?
All R7FS5D37A3A01CLJ#AC0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FS5D37A3A01CLJ#AC0, 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 R7FS5D37A3A01CLJ#AC0 part is unused and in its original packaging.
Return procedure for R7FS5D37A3A01CLJ#AC0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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