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Renesas R7FS3A6783A01CNB#AC0
- Part No.:
- R7FS3A6783A01CNB#AC0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-WFQFN Exposed Pad
- Datasheet:
-
R7FS3A6783A01CNB#AC0.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:131
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Product details
Overview
R7FS3A6783A01CNB#AC0 from Renesas is a 48-MHz Arm Cortex-M4 microcontroller with FPU, 256-KB code flash, 32-KB SRAM, USB 2.0 Full-Speed, CAN, 14-bit ADC, and integrated Segment LCD Controller and Capacitive Touch Sensing Unit - deployed in industrial HMI panels requiring low-power operation, real-time control, and embedded display/touch interfaces.
For engineers reviewing the R7FS3A6783A01CNB#AC0 datasheet, R7FS3A6783A01CNB#AC0 pinout, R7FS3A6783A01CNB#AC0 application, or R7FS3A6783A01CNB#AC0 equivalent, key selection considerations include its 64-pin QFN package (PWQN0064LA-A), -40°C to +105°C operating range, dual watchdog timers (WDT/IWDT), ECC-protected SRAM, and hardware security engine (SCE5) supporting AES128/256 and TRNG.
Technical Context
This MCU implements an Armv7E-M architecture with DSP extensions and single-precision FPU for deterministic signal processing. Its memory subsystem includes 256-KB code flash with 8-KB data flash (100k P/E cycles), 32-KB SRAM split into 16-KB parity and 16-KB ECC regions, and Flash Cache for instruction acceleration.
The peripheral set integrates time-critical and safety-aware functions: dual GPT32/GPT16 timers for motor control, AGT timers for low-power event timing, RTC with battery backup, ELC for CPU-free peripheral chaining, and SCE5 for cryptographic operations. Analog resources include ADC14 (25-channel, 14-bit), DAC12, dual ACMPLP, four OPAMPs, and TSN - all accessible via dedicated I/O pins in the 64-pin QFN layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4 with FPU, 48 MHz max - enables real-time DSP and floating-point math without external co-processor. |
| Memory | 256-KB code flash + 8-KB data flash + 32-KB SRAM (16-KB ECC, 16-KB parity) - supports firmware updates, parameter storage, and fault-tolerant runtime data. |
| USB | USB 2.0 Full-Speed with on-chip transceiver and Battery Charging 1.2 compliance - eliminates external PHY and supports direct USB device/host connectivity. |
| Analog | 14-bit ADC (25 channels), 12-bit DAC, dual ACMPLP, 4 OPAMPs, TSN - provides high-resolution sensor acquisition and analog signal conditioning in one chip. |
| Timers | GPT32 × 2, GPT16 × 6, AGT × 2, WDT/IWDT, RTC - delivers precise PWM generation, motor commutation, low-power wake-up, and calendar timekeeping. |
| Security | SCE5 crypto engine with AES128/256, GHASH, TRNG - enables secure boot, encrypted communication, and key generation without software overhead. |
| HMI | SLCDC (up to 38×4 segments), CTSU (27 electrodes) - drives segmented LCDs and detects touch through overlayed glass/plastic without mechanical buttons. |
| Package | 64-pin QFN (PWQN0064LA-A), 8 mm × 8 mm, 0.4 mm pitch, -40°C to +105°C - compact, thermally efficient, and suitable for space-constrained industrial enclosures. |
Pinout & Package
Package: 64-pin QFN (PWQN0064LA-A), 8 mm × 8 mm body, 0.4 mm pitch, exposed thermal pad, RoHS-compliant Sn-only termination.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: VCC powers core/peripherals; VSS is common reference - requires local 0.1-μF decoupling per VCC pin. |
| XTAL / EXTAL | Main clock oscillator interface | Supports 1–20 MHz crystal or external clock source - enables precise timing for USB, CAN, and real-time control loops. |
| USB_VBUS / USB_DP / USB_DM | USB 2.0 Full-Speed interface | Integrated transceiver with internal 3.3-V LDO - allows direct connection to USB connector without external level shifters or regulators. |
| GTIOC0A–GTIOC7A | GPT16 channel I/O | Configurable as input capture, output compare, or PWM output - used for encoder feedback, pulse-width measurement, and 3-phase BLDC drive signals. |
| CTSU0–CTSU26 | Capacitive touch sensing inputs | 27 dedicated CTSU electrode pins - support mutual/self-capacitance scanning for up to 27 touch keys or sliders with noise immunity. |
| SLCD0–SLCD37 | Segment LCD driver outputs | 38 segment outputs shared across 4 commons - drives multiplexed LCD glass with internal voltage boosting and contrast control. |
| ADC0–ADC24 | Analog input channels | 25-channel 14-bit ADC with selectable resolution (12/14-bit) - accommodates both high-speed and high-accuracy sampling requirements. |
| CAN_TX / CAN_RX | Controller Area Network interface | Differential CAN 2.0A/B compliant signals - connects directly to ISO 11898-2 transceiver for robust industrial fieldbus communication. |
Key Features
| Feature | Design Value |
|---|---|
| Arm Cortex-M4 with FPU | Enables real-time motor control algorithms and audio processing without software emulation overhead. |
| ECC-protected SRAM | Prevents silent data corruption in safety-critical applications by detecting and correcting single-bit errors in 16-KB RAM region. |
| USB Battery Charging 1.2 | Allows direct charging of connected devices (e.g., smartphones, sensors) from MCU-powered USB port without external charger IC. |
| SLCDC + CTSU integration | Eliminates external LCD driver and touch controller ICs - reduces BOM count and PCB area in HMI designs. |
| Independent Watchdog Timer (IWDT) | Operates on dedicated 15-kHz oscillator - ensures fail-safe reset even if main clock fails or software hangs in low-power mode. |
| Event Link Controller (ELC) | Chains peripheral events (e.g., ADC end-of-conversion → DMA trigger → GPT start) without CPU intervention - lowers latency and CPU load. |
Applications
| Industrial HMI Panels | Smart Sensor Nodes |
|---|---|
Use Scenario: Embedded operator interface in PLC cabinets with segmented LCD display, touch keys, and real-time process monitoring. IC Role / Device Role / Timing Role: Central controller managing display refresh, capacitive touch scan, CAN bus data acquisition, and USB configuration download. Use Value: Integrated SLCDC and CTSU eliminate external drivers; USBFS enables field firmware updates; CAN module interfaces with distributed I/O modules. | Use Scenario: Battery-powered environmental sensor node measuring temperature, humidity, and vibration in remote industrial locations. IC Role / Device Role / Timing Role: Low-power system-on-chip handling analog sensor conditioning (ADC14, OPAMP, TSN), secure data encryption (SCE5), and wireless gateway communication via USB or CAN. Use Value: AGT timers enable ultra-low-power wake-up; ECC SRAM ensures data integrity during long sleep cycles; TRNG supports secure key derivation. |
| Motor Control Systems | Medical Diagnostic Devices |
Use Scenario: Brushless DC motor drive in HVAC blowers or pump controllers requiring precise 3-phase PWM and current sensing. IC Role / Device Role / Timing Role: Real-time motor controller executing FOC algorithms using GPT32/GPT16 timers, ADC14 for current sampling, and OPAMPs for signal conditioning. Use Value: Hardware-accelerated PWM with dead-time insertion and hall sensor inputs (GTIU/GTIV/GTIW) simplifies BLDC commutation logic. | Use Scenario: Portable diagnostic tool with analog front-end for ECG/EEG signal acquisition, LCD display, and USB data export. IC Role / Device Role / Timing Role: Signal acquisition processor performing 14-bit ADC sampling, digital filtering (via FPU), secure data packaging (AES), and USB mass storage emulation. Use Value: High SNR ADC14 with internal reference and programmable gain OPAMPs reduce external signal chain components; SCE5 meets HIPAA-level data protection requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FS3A6783A01CFM#AC0 | Same core, memory, peripherals; differs only in 64-pin LQFP (PLQP0064KB-C) vs. QFN (PWQN0064LA-A) package. | LQFP offers easier prototyping and rework; QFN provides better thermal performance and smaller footprint. | Select R7FS3A6783A01CFM#AC0 for breadboarding or legacy PCB compatibility; choose R7FS3A6783A01CNB#AC0 for volume production where size and thermal efficiency are critical. |
| R7FS3A6773A01CNB#AC0 | Identical 64-pin QFN package and pinout, but reduced feature set: 128-KB flash, no USBFS, no CAN, no SLCDC, no CTSU. | Suitable for cost-sensitive, non-HMI, non-USB applications such as simple sensor concentrators or relay controllers. | Choose R7FS3A6773A01CNB#AC0 only when USB, CAN, LCD, and touch features are unnecessary - avoids over-specifying silicon and reduces BOM cost. |
Compared with R7FS3A6783A01CFM#AC0, the R7FS3A6783A01CNB#AC0 offers superior thermal dissipation and board-space efficiency in identical 64-pin I/O count; versus R7FS3A6773A01CNB#AC0, it delivers full S3A6 superset functionality including USB, CAN, and HMI peripherals - making it the only option for integrated display/touch/communication systems.
Availability
R7FS3A6783A01CNB#AC0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, motor control systems, medical diagnostic devices, and portable instrumentation requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for R7FS3A6783A01CNB#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The R7FS3A6783A01CNB#AC0 belongs to the Synergy S3A6 Microcontroller Group - designed specifically for scalable, secure, and low-power human-machine interface applications integrating display, touch, connectivity, and real-time control in a single chip.
FAQ
What is the maximum operating frequency of the R7FS3A6783A01CNB#AC0?
The R7FS3A6783A01CNB#AC0 operates at a maximum frequency of 48 MHz using its Arm Cortex-M4 core with FPU. This speed is achievable with the high-speed on-chip oscillator (HOCO) or external crystal (1–20 MHz), and is supported across its full -40°C to +105°C operating temperature range. The core maintains full specification compliance including DSP instructions and floating-point operations at this frequency.
Does the R7FS3A6783A01CNB#AC0 support USB device and host modes?
Yes, the R7FS3A6783A01CNB#AC0 USB 2.0 Full-Speed Module (USBFS) supports both device and host modes as defined in the USB Specification 2.0. It includes an on-chip transceiver and LDO regulator, enabling direct connection to USB connectors. The module supports full-speed (12 Mbps) and low-speed (1.5 Mbps, host only) transfers, and complies with USB Battery Charging Specification 1.2 for downstream port charging.
What analog peripherals are integrated into the R7FS3A6783A01CNB#AC0?
The R7FS3A6783A01CNB#AC0 integrates a comprehensive analog subsystem: a 14-bit successive approximation ADC (ADC14) with up to 25 channels, a 12-bit DAC (DAC12), two 8-bit DACs for analog comparator references (DAC8), two low-power analog comparators (ACMPLP), four operational amplifiers (OPAMP), and an on-die temperature sensor (TSN). All are accessible via dedicated pins in the 64-pin QFN package and support simultaneous operation under independent clock domains.
Is the R7FS3A6783A01CNB#AC0 pin-compatible with other S3A6 group members?
Within the same package type, yes - the R7FS3A6783A01CNB#AC0 shares identical pinout with other 64-pin QFN variants in the S3A6 family, including R7FS3A6783A01CNE#AC0 and R7FS3A6773A01CNB#AC0. However, feature availability differs: R7FS3A6773A01CNB#AC0 omits USBFS, CAN, SLCDC, and CTSU. Always verify peripheral mapping against the specific part number's datasheet before design reuse.
What security features does the R7FS3A6783A01CNB#AC0 provide?
The R7FS3A6783A01CNB#AC0 includes the Secure Crypto Engine 5 (SCE5), which provides hardware-accelerated AES128/256 encryption/decryption, GHASH for authentication, and a True Random Number Generator (TRNG). Additional security mechanisms include ECC-protected SRAM, flash area protection, register write protection, illegal memory access detection, and Clock Frequency Accuracy Measurement Circuit (CAC) for clock tampering detection - collectively supporting secure boot and trusted firmware execution.
R7FS3A6783A01CNB#AC0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-WFQFN Exposed Pad
- Series:
- Renesas Synergy™ S3
- Packaging:
- Tray
- Product Status:
- Obsolete
- 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:
- 52
- 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 18x14b; D/A 3x8b, 3x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FS3A6783A01CNB#AC0 FAQ
1.How can I place an order for R7FS3A6783A01CNB#AC0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FS3A6783A01CNB#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 R7FS3A6783A01CNB#AC0 reliable?
The price and inventory of R7FS3A6783A01CNB#AC0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FS3A6783A01CNB#AC0 is usually 5 days.
3.What payment methods are accepted for R7FS3A6783A01CNB#AC0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FS3A6783A01CNB#AC0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FS3A6783A01CNB#AC0?
R7FS3A6783A01CNB#AC0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FS3A6783A01CNB#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 R7FS3A6783A01CNB#AC0?
For technical support, including R7FS3A6783A01CNB#AC0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FS3A6783A01CNB#AC0 requirements.
6.How does Aetrix verify that R7FS3A6783A01CNB#AC0 is sourced from the original manufacturer or authorized distributors?
All R7FS3A6783A01CNB#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 R7FS3A6783A01CNB#AC0 meets industry standards.
7.What is the process for return or replacement of R7FS3A6783A01CNB#AC0?
All R7FS3A6783A01CNB#AC0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FS3A6783A01CNB#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 R7FS3A6783A01CNB#AC0 part is unused and in its original packaging.
Return procedure for R7FS3A6783A01CNB#AC0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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