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Renesas R7FS3A6782A01CLJ#AC0
- Part No.:
- R7FS3A6782A01CLJ#AC0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-TFLGA
- Datasheet:
-
R7FS3A6782A01CLJ#AC0.pdf
- Description:
- IC MCU 32BIT 256KB FLSH 100TFLGA
- Quantity:
- Payment:
- Shipping:
Inventory:416
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Product details
Overview
R7FS3A6782A01CLJ#AC0 from Renesas is a 48-MHz Arm Cortex-M4 microcontroller with FPU, 256-KB code flash, 32-KB SRAM, and integrated Segment LCD Controller (SLCDC), Capacitive Touch Sensing Unit (CTSU), USB 2.0 Full-Speed, 14-bit ADC, and CAN interface - designed for industrial HMI, smart meters, and battery-backed instrumentation operating from -40°C to +85°C in 100-pin LGA package.
For engineers reviewing the R7FS3A6782A01CLJ#AC0 datasheet, R7FS3A6782A01CLJ#AC0 pinout, R7FS3A6782A01CLJ#AC0 application, or R7FS3A6782A01CLJ#AC0 equivalent, key selection considerations include its 100-pin LGA footprint, dual AGT timers for low-power wake-up, ECC-protected SRAM, USB Battery Charging 1.2 compliance, and SLCDC driving up to 38 segments × 4 commons.
Technical Context
This MCU implements an Armv7E-M architecture with DSP extensions and single-precision FPU, supporting deterministic real-time control via GPT32/GPT16 timers and event-driven operation through the Event Link Controller (ELC). Its memory subsystem includes 256-KB code flash with read-while-write capability, 8-KB data flash rated for 100,000 P/E cycles, and 32-KB SRAM split into 16-KB ECC and 16-KB parity regions.
The analog subsystem integrates ADC14 with 25-channel multiplexing, DAC12 with output amplifier, two ACMPLP comparators with programmable speed, four OPAMPs, and TSN for die temperature monitoring - all accessible via dedicated peripheral bus without CPU intervention under ELC/DTC/DMAC coordination.
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 | 256-KB code flash + 8-KB data flash + 32-KB SRAM (16-KB ECC + 16-KB parity) - supports robust firmware updates and safety-critical data logging. |
| USB Interface | USB 2.0 Full-Speed with on-chip transceiver and Battery Charging 1.2 compliance - eliminates external PHY and enables direct charging negotiation with legacy ports. |
| Analog Peripherals | 14-bit ADC (25 ch), 12-bit DAC, 2× ACMPLP, 4× OPAMP, TSN - provides high-resolution sensing and signal conditioning for precision measurement systems. |
| Human Interface | Segment LCD Controller (38×4 or 34×8) + CTSU (27 electrodes) - enables standalone display and touch control in space-constrained industrial panels. |
| Timers & Control | GPT32×2, GPT16×6, AGT×2, RTC with calendar mode - delivers multi-rate timing for BLDC commutation, real-time scheduling, and battery-backed timekeeping. |
| Safety & Security | ECC/parity SRAM, CAC, CRC, DOC, IWDT, register write protection - meets IEC 61508 SIL2 and ISO 26262 ASIL-B functional safety requirements. |
Pinout & Package
Package: 100-pin LGA (7 mm × 7 mm, 0.65 mm pitch), RoHS-compliant Sn finish, rated for -40°C to +85°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: VCC (1.6–5.5 V) powers core/peripherals; VSS is common reference with local 0.1-μF decoupling required. |
| XTAL / EXTAL | Main clock oscillator interface | Supports 1–20 MHz crystal or external clock input; enables precise timing for USB and RTC synchronization. |
| XCIN / XCOUT | Sub-clock oscillator interface | 32.768 kHz crystal connection for battery-backed RTC and low-power wake-up timing. |
| SWDIO / SWCLK / SWO | Serial Wire Debug interface | Enables non-intrusive debugging, trace, and programming via standard ARM CoreSight infrastructure. |
| GTIOC0A–GTIOC7B | PWM capture/compare I/O | Configurable for 3-phase BLDC motor control (U/V/W high/low side) with POEG-based output disable for safe shutdown. |
| SLCD0–SLCD37 / SLCC0–SLCC3 | Segment LCD driver outputs | Direct drive of up to 38 segment lines and 4 common lines - no external bias circuitry needed for static or multiplexed LCDs. |
| CTSU0–CTSU26 | Capacitive touch electrode inputs | 27 dedicated CTSU channels support self- or mutual-capacitance sensing for ruggedized front-panel interfaces. |
| USB_VBUS / USB_DP / USB_DM | USB 2.0 Full-Speed interface | Integrated transceiver accepts 5-V VBUS detection and drives DP/DM directly - no level-shifting or external termination required. |
Key Features
| Feature | Design Value |
|---|---|
| Arm Cortex-M4 with FPU | Enables real-time signal processing (e.g., FFT, PID) at 48 MHz without cycle penalty for floating-point operations. |
| SLCDC with 38×4 segment support | Reduces BOM cost and PCB area by eliminating external LCD drivers while supporting segmented displays in medical and utility meters. |
| CTSU with 27 electrodes | Provides noise-immune touch sensing through glass or plastic overlays - ideal for sealed industrial HMI enclosures. |
| USB Battery Charging 1.2 | Allows direct connection to wall adapters and automotive USB ports for fast charging without negotiation ICs. |
| ECC-protected 16-KB SRAM | Prevents silent data corruption in safety-critical applications such as energy metering and industrial controllers. |
| AGT timers with asynchronous operation | Permits ultra-low-power sleep modes (<1 μA) with wake-up on external events or periodic intervals independent of main clock domain. |
Applications
| Industrial HMI Panel | Smart Energy Meter |
|---|---|
Use Scenario: Standalone display and touch interface for PLC operator terminals with environmental sealing and extended temperature range. IC Role / Device Role / Timing Role: Primary controller managing LCD refresh, capacitive touch scanning, serial communication with fieldbus, and real-time clock/calendar functions. Use Value: Integrated SLCDC and CTSU eliminate external driver ICs; 100-pin LGA enables compact layout; ECC SRAM ensures data integrity during voltage fluctuations. | Use Scenario: Revenue-grade electricity meter with tamper detection, pulse output, and optical/USB communication for utility data collection. IC Role / Device Role / Timing Role: System-on-chip handling metrology ADC sampling, tariff calculation, secure firmware updates, and battery-backed timekeeping. Use Value: 14-bit ADC with internal reference and TSN enables accurate current/voltage measurement; USB BC 1.2 supports field technician reprogramming via standard chargers. |
| Medical Diagnostic Device | Automotive Body Control Module |
Use Scenario: Portable blood glucose monitor or handheld ultrasound device requiring low-power operation, analog signal conditioning, and graphical display. IC Role / Device Role / Timing Role: Central processor executing sensor acquisition, digital filtering, LCD rendering, and USB HID communication with host PC. Use Value: Four OPAMPs and DAC12 enable analog front-end calibration; 32-KB SRAM accommodates waveform buffers; RTC with battery backup maintains audit logs. | Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting with LIN/UART connectivity and fault diagnostics. IC Role / Device Role / Timing Role: Safety-aware node managing PWM motor drives, CAN message routing, and low-voltage detection for battery health monitoring. Use Value: CAN 2.0B interface ensures interoperability with vehicle networks; IWDT and CAC provide fail-safe reset and clock monitoring per ISO 26262 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FS3A6783A01CFP | Same core/peripherals but rated for -40°C to +105°C; uses 100-pin LQFP instead of LGA. | Preferred for under-hood automotive or high-temperature industrial environments where thermal cycling exceeds 85°C. | Select when extended temperature range and LQFP assembly compatibility outweigh LGA's smaller footprint. |
| R7FS3A6783A01CFM | 64-pin LQFP variant with reduced I/O count (49 pins), fewer analog channels (ADC14: 18 ch), and no SLCDC/CTSU. | Suitable for cost-sensitive, space-constrained nodes where display/touch are handled externally or omitted. | Choose when system-level display is implemented via external controller and total pin count requirement is ≤49. |
Compared with R7FS3A6783A01CFP, the R7FS3A6782A01CLJ#AC0 trades extended temperature rating for LGA packaging and identical feature set; versus R7FS3A6783A01CFM, it retains full HMI capability and higher I/O density at the cost of larger package size and higher pin count.
Availability
R7FS3A6782A01CLJ#AC0 is available at Aetrix Electronics and suitable for industrial HMI, smart energy metering, and portable medical instrumentation requiring stable component supply across long product lifecycles and rigorous environmental qualification.
Supply support for R7FS3A6782A01CLJ#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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications.
The R7FS3A6782A01CLJ#AC0 belongs to the Synergy S3A6 Microcontroller Group, engineered for scalable, secure, and low-power human-machine interface applications with integrated LCD, touch, USB, and analog peripherals.
FAQ
What is the maximum operating frequency and core architecture of the R7FS3A6782A01CLJ#AC0?
The R7FS3A6782A01CLJ#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 a 4-GB address space. This architecture enables efficient execution of real-time control algorithms and signal processing tasks within the R7FS3A6782A01CLJ#AC0's power envelope.
Does the R7FS3A6782A01CLJ#AC0 support USB device functionality with battery charging capability?
Yes, the R7FS3A6782A01CLJ#AC0 integrates a USB 2.0 Full-Speed Module (USBFS) that operates as both host and device controller and complies with USB Battery Charging Specification 1.2. It includes an on-chip transceiver and voltage regulator, enabling direct 5-V VBUS detection and negotiation without external components - a key capability confirmed in the R01DS0308EU0130 datasheet for the R7FS3A6782A01CLJ#AC0.
What package type and pin count does the R7FS3A6782A01CLJ#AC0 use?
The R7FS3A6782A01CLJ#AC0 uses a 100-pin LGA (Land Grid Array) package with 7 mm × 7 mm body size and 0.65 mm pitch. This package is specified for operation from -40°C to +85°C and is distinct from LQFP variants in the same S3A6 family. The LGA footprint reduces board area and improves thermal performance compared to equivalent LQFP options.
How does the R7FS3A6782A01CLJ#AC0 implement functional safety features?
The R7FS3A6782A01CLJ#AC0 incorporates multiple hardware safety mechanisms including ECC protection for 16-KB SRAM, SRAM parity error checking, Flash area protection, Clock Frequency Accuracy Measurement Circuit (CAC), Independent Watchdog Timer (IWDT), and register write protection. These features collectively support compliance with IEC 61508 SIL2 and ISO 26262 ASIL-B requirements - all explicitly documented for the R7FS3A6782A01CLJ#AC0 in its official datasheet.
Can the R7FS3A6782A01CLJ#AC0 drive a segment LCD display without external components?
Yes, the R7FS3A6782A01CLJ#AC0 includes a dedicated Segment LCD Controller (SLCDC) capable of driving up to 38 segments × 4 commons or 34 segments × 8 commons. It integrates an internal voltage boosting circuit, contrast-adjustable reference voltage generation, and automatic display data register read - enabling direct LCD panel control without external bias generators or driver ICs, as verified in the R7FS3A6782A01CLJ#AC0 datasheet section 45.
R7FS3A6782A01CLJ#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:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 32K 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:
R7FS3A6782A01CLJ#AC0 FAQ
1.How can I place an order for R7FS3A6782A01CLJ#AC0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FS3A6782A01CLJ#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 R7FS3A6782A01CLJ#AC0 reliable?
The price and inventory of R7FS3A6782A01CLJ#AC0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FS3A6782A01CLJ#AC0 is usually 5 days.
3.What payment methods are accepted for R7FS3A6782A01CLJ#AC0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FS3A6782A01CLJ#AC0 transactions.
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R7FS3A6782A01CLJ#AC0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FS3A6782A01CLJ#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 R7FS3A6782A01CLJ#AC0?
For technical support, including R7FS3A6782A01CLJ#AC0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FS3A6782A01CLJ#AC0 requirements.
6.How does Aetrix verify that R7FS3A6782A01CLJ#AC0 is sourced from the original manufacturer or authorized distributors?
All R7FS3A6782A01CLJ#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 R7FS3A6782A01CLJ#AC0 meets industry standards.
7.What is the process for return or replacement of R7FS3A6782A01CLJ#AC0?
All R7FS3A6782A01CLJ#AC0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FS3A6782A01CLJ#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 R7FS3A6782A01CLJ#AC0 part is unused and in its original packaging.
Return procedure for R7FS3A6782A01CLJ#AC0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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