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Renesas R7FS3A37A2A01CLJ#AC0
- Part No.:
- R7FS3A37A2A01CLJ#AC0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-TFLGA
- Datasheet:
-
R7FS3A37A2A01CLJ#AC0.pdf
- Description:
- IC MCU 32BIT 512KB FLSH 100TFLGA
- Quantity:
- Payment:
- Shipping:
Inventory:416
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Product details
Overview
R7FS3A37A2A01CLJ#AC0 from Renesas Electronics is a 48-MHz Arm® Cortex®-M4 microcontroller with FPU, 512-KB code flash, 96-KB SRAM, and integrated Segment LCD Controller (SLCDC), Capacitive Touch Sensing Unit (CTSU), USB 2.0 Full-Speed, 14-bit ADC, 12-bit DAC, and SCE5 security engine - designed for industrial HMI, smart metering, and battery-backed embedded control systems operating from –40°C to +85°C.
For engineers reviewing the R7FS3A37A2A01CLJ#AC0 datasheet, R7FS3A37A2A01CLJ#AC0 pinout, R7FS3A37A2A01CLJ#AC0 application, or R7FS3A37A2A01CLJ#AC0 equivalent, key selection considerations include its 100-pin LGA package, dual AGT timers for low-power wake-up, ECC-protected SRAM, CAC-based clock monitoring, and hardware-accelerated AES/GHASH/TRNG for secure firmware updates and data integrity.
Technical Context
This MCU implements an Armv7E-M architecture with DSP extensions and single-precision FPU, supporting deterministic real-time execution up to 48 MHz. Its memory subsystem includes 512-KB code flash with 8-KB data flash (100,000 erase/write cycles), 96-KB SRAM split into 80-KB parity-protected and 16-KB ECC-protected regions, and Memory Mirror Function (MMF) for flexible firmware load/link address decoupling.
The peripheral set is optimized for human-machine interface and mixed-signal control: SLCDC drives up to 54 segments × 4 commons or 50 segments × 8 commons; CTSU supports 27 touch channels; ADC14 offers 25 selectable analog inputs with 12-/14-bit resolution modes; and the USBFS module integrates an on-chip transceiver compliant with USB Battery Charging Specification 1.2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4 with FPU, 48 MHz max - enables floating-point math for motor control and sensor fusion without software emulation. |
| Memory | 512-KB code flash + 8-KB data flash + 96-KB SRAM - supports robust firmware storage, parameter retention, and real-time buffer allocation. |
| Analog | 14-bit ADC (25 ch), 12-bit DAC, 2× ACMPLP, 4× OPAMP, TSN - delivers high-precision sensing and actuation in closed-loop systems. |
| Connectivity | USBFS (with on-chip transceiver), CAN, 6× SCI, 3× I2C, 2× SPI, QSPI, SDHI - enables multi-protocol fieldbus integration and external memory expansion. |
| Security | SCE5 with AES128/256, GHASH, TRNG - provides hardware-accelerated encryption for secure boot, OTA updates, and data-at-rest protection. |
| Package | 100-pin LGA (7 mm × 7 mm, 0.65 mm pitch), –40°C to +85°C - compact, thermally efficient footprint suitable for space-constrained industrial modules. |
| Power | VCC = 1.6–5.5 V, RTC with VBATT backup, AGT timers for sub-μA wake-up - supports wide-input power supplies and long-term battery operation. |
Pinout & Package
100-pin LGA (PTLG0100JA-A), 7 mm × 7 mm, 0.65 mm pitch, exposed thermal pad - optimized for thermal dissipation and PCB area efficiency in industrial HMI applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: VCC powers core/peripherals; VSS provides clean reference; requires local 0.1-μF decoupling. |
| VBATT | Battery backup input | Supplies RTC, SOSC, LOCO, and backup registers during main power loss - enables calendar timekeeping and fast wake-up. |
| XTAL / EXTAL | Main crystal oscillator interface | Supports 1–20 MHz crystals; enables precise timing for USB, CAN, and real-time control loops. |
| XCIN / XCOUT | Sub-clock oscillator interface | Connects 32.768 kHz crystal for RTC calendar mode and low-power AGT timer operation. |
| RES | Reset input | Active-low asynchronous reset pin - initiates full system initialization including register and memory state restoration. |
| SWDIO / SWCLK | Serial Wire Debug interface | Enables non-intrusive debug, flash programming, and real-time trace via standard ARM CoreSight infrastructure. |
| SLCD[0:53] / COM[0:7] | Segment LCD driver outputs | Direct drive of up to 54 segments × 4 commons or 50 segments × 8 commons - eliminates external LCD driver ICs. |
| CTSU[0:26] | Capacitive touch sensing inputs | 27 dedicated CTSU channels support self- and mutual-capacitance measurement for robust button/slider/gesture detection. |
Key Features
| Feature | Design Value |
|---|---|
| Memory Mirror Function (MMF) | Maps flash load address to link address transparently - simplifies firmware update deployment without linker script changes. |
| Event Link Controller (ELC) | Hardware-triggered peripheral chaining - enables zero-CPU-latency signal paths (e.g., ADC conversion → DMA → CRC → interrupt). |
| Port Output Enable for GPT (POEG) | Hardware-controlled output disable on PWM pins - prevents shoot-through during motor startup/shutdown sequences. |
| Clock Frequency Accuracy Measurement (CAC) | Real-time oscillator drift detection using internal reference - validates clock integrity for USB/CAN timing compliance and safety-critical timing. |
| Low Power Asynchronous Timers (AGT) | Two independent 16-bit timers running on LOCO (32.768 kHz) - provide sub-μA wake-up capability for periodic sensor polling or RTC alarm handling. |
Applications
| Industrial HMI Panel | Smart Energy Meter |
|---|---|
Use Scenario: A wall-mounted display with segmented LCD, capacitive buttons, and USB configuration port in factory automation. IC Role / Device Role / Timing Role: R7FS3A37A2A01CLJ#AC0 serves as the primary controller managing SLCDC segment driving, CTSU touch decoding, USBFS host-mode configuration, and real-time RTC timestamping. Use Value: Integrated SLCDC and CTSU eliminate external driver ICs; USBFS with battery charging support enables field technician reprogramming via standard USB cables. | Use Scenario: DIN-rail mounted electricity meter with tamper detection, pulse output, and secure firmware updates over isolated RS-485. IC Role / Device Role / Timing Role: R7FS3A37A2A01CLJ#AC0 executes metrology algorithms, manages isolated communication via SCI, performs AES-encrypted firmware validation, and logs events with RTC+VBATT backup. Use Value: SCE5 accelerates AES decryption and GHASH verification; ECC-protected SRAM ensures integrity of critical metering variables during brownout conditions. |
| Medical Patient Monitor | Building Automation Controller |
Use Scenario: Portable vital sign monitor with OLED/LCD hybrid display, analog front-end for ECG/SpO₂, and USB data export. IC Role / Device Role / Timing Role: R7FS3A37A2A01CLJ#AC0 acquires signals via ADC14 and OPAMP, renders UI via SLCDC, handles USB mass storage class for waveform export, and maintains accurate timestamps. Use Value: 14-bit ADC resolution and programmable gain OPAMP enable high-fidelity biopotential acquisition; USBFS supports plug-and-play data transfer without PC drivers. | Use Scenario: HVAC controller with temperature/humidity sensors, relay outputs, CAN bus to zone actuators, and local LCD status display. IC Role / Device Role / Timing Role: R7FS3A37A2A01CLJ#AC0 reads analog sensors via ADC14, drives relays via GPIO, communicates over CAN, and displays status via SLCDC with backlight control. Use Value: Dual AGT timers manage low-power sensor polling intervals; CAN module complies with ISO 11898-1 for interoperability with BACnet MS/TP gateways. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FS3A37A3A01CFP | Same core/peripherals but rated for –40°C to +105°C; 100-pin LQFP package; reduced SLCDC (46 seg × 4 com) and CTSU (24 ch). | Targeted at automotive cabin controllers or industrial drives requiring extended temperature range and through-hole assembly. | Select when ambient operating temperature exceeds +85°C or LQFP reflow compatibility is required over LGA. |
| R7FA4M1AB3CFM | Arm Cortex-M4, 48 MHz, 512-KB flash, but no SLCDC/CTSU; adds Ethernet MAC, more GPIOs, and enhanced security (TRNG + AES + SHA). | Designed for networked edge nodes needing wired connectivity and higher-level protocol stacks (TCP/IP, TLS), not HMI-centric devices. | Choose when Ethernet, larger I/O count, or TLS offload outweighs integrated touch/LCD capabilities. |
Compared with R7FS3A37A2A01CLJ#AC0, R7FS3A37A3A01CFP trades HMI features for extended temperature tolerance and different packaging, while R7FA4M1AB3CFM replaces SLCDC/CTSU with networking peripherals and stronger crypto - making each optimal for distinct system-level priorities: HMI density vs. environmental ruggedness vs. network edge processing.
Availability
R7FS3A37A2A01CLJ#AC0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy meters, and medical patient monitors requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R7FS3A37A2A01CLJ#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 is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power management ICs for industrial, automotive, and IoT applications.
The R7FS3A37A2A01CLJ#AC0 belongs to the Synergy S3A3 microcontroller group - engineered for scalable, secure, and feature-rich HMI and mixed-signal control in cost-sensitive industrial equipment.
FAQ
What is the maximum operating frequency and core architecture of the R7FS3A37A2A01CLJ#AC0?
The R7FS3A37A2A01CLJ#AC0 features an Arm Cortex-M4 core with Floating Point Unit (FPU), operating at a maximum frequency of 48 MHz. It implements the Armv7E-M architecture with DSP instruction set and supports single-precision IEEE 754 floating-point operations - enabling efficient execution of control algorithms, sensor fusion, and digital signal processing without software emulation overhead. This performance level is confirmed in the official R01DS0307EU0120 datasheet Rev.1.20.
Does the R7FS3A37A2A01CLJ#AC0 support USB device functionality, and what USB specifications does it comply with?
Yes, the R7FS3A37A2A01CLJ#AC0 includes a USB 2.0 Full-Speed (USBFS) module that operates in both host and device modes. It complies with the Universal Serial Bus Specification 2.0 for full-speed (12 Mbps) and low-speed (1.5 Mbps, host-only) transfers, and supports USB Battery Charging Specification 1.2. The module integrates an on-chip transceiver and voltage regulator, eliminating the need for external USB PHY components - a capability explicitly documented in Section 28 of the R01DS0307EU0120 datasheet.
What LCD and touch interfaces are integrated into the R7FS3A37A2A01CLJ#AC0, and how many segments/channels do they support?
The R7FS3A37A2A01CLJ#AC0 integrates a Segment LCD Controller (SLCDC) supporting up to 54 segments × 4 commons or 50 segments × 8 commons, and a Capacitive Touch Sensing Unit (CTSU) with 27 dedicated channels. These peripherals are fully hardware-accelerated and require no external driver ICs. The SLCDC supports contrast adjustment via 16-step internal voltage boosting, and the CTSU enables robust self- and mutual-capacitance sensing - all verified in Tables 1.10 and 1.14 of the R01DS0307EU0120 datasheet.
How does the R7FS3A37A2A01CLJ#AC0 ensure functional safety and reliability in industrial environments?
The R7FS3A37A2A01CLJ#AC0 incorporates multiple safety mechanisms: ECC protection for 16 KB of SRAM, parity checking for the remaining 80 KB, Flash area protection, ADC self-diagnosis, Clock Frequency Accuracy Measurement Circuit (CAC), Independent Watchdog Timer (IWDT) with dedicated oscillator, and illegal memory access detection. These features collectively support IEC 61508 SIL-2 readiness and are detailed in Sections 1.1 and Table 1.12 of the R01DS0307EU0120 datasheet.
What are the supported operating voltage and temperature ranges for the R7FS3A37A2A01CLJ#AC0?
The R7FS3A37A2A01CLJ#AC0 operates across a supply voltage range of 1.6 V to 5.5 V and is qualified for ambient temperatures from –40°C to +85°C. Its 100-pin LGA package (PTLG0100JA-A) is specified for this industrial temperature grade. These ratings are explicitly stated in the "Operating Voltage" and "Operating Temperature and Packages" sections of the R01DS0307EU0120 datasheet Rev.1.20, Page 1.
R7FS3A37A2A01CLJ#AC0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-TFLGA
- 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, MMC/SD, QSPI, SCI, SPI, SSI, UART/USART, USB
- Peripherals:
- DMA, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 84
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 96K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 25x14b; D/A 3x8b, 3x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FS3A37A2A01CLJ#AC0 FAQ
1.How can I place an order for R7FS3A37A2A01CLJ#AC0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FS3A37A2A01CLJ#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 R7FS3A37A2A01CLJ#AC0 reliable?
The price and inventory of R7FS3A37A2A01CLJ#AC0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FS3A37A2A01CLJ#AC0 is usually 5 days.
3.What payment methods are accepted for R7FS3A37A2A01CLJ#AC0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FS3A37A2A01CLJ#AC0 transactions.
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4.How is shipping managed for R7FS3A37A2A01CLJ#AC0?
R7FS3A37A2A01CLJ#AC0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FS3A37A2A01CLJ#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 R7FS3A37A2A01CLJ#AC0?
For technical support, including R7FS3A37A2A01CLJ#AC0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FS3A37A2A01CLJ#AC0 requirements.
6.How does Aetrix verify that R7FS3A37A2A01CLJ#AC0 is sourced from the original manufacturer or authorized distributors?
All R7FS3A37A2A01CLJ#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 R7FS3A37A2A01CLJ#AC0 meets industry standards.
7.What is the process for return or replacement of R7FS3A37A2A01CLJ#AC0?
All R7FS3A37A2A01CLJ#AC0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FS3A37A2A01CLJ#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 R7FS3A37A2A01CLJ#AC0 part is unused and in its original packaging.
Return procedure for R7FS3A37A2A01CLJ#AC0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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