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Renesas R7FS128783A01CFJ#AA1
- Part No.:
- R7FS128783A01CFJ#AA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R7FS128783A01CFJ#AA1.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:509
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Product details
Overview
R7FS128783A01CFJ#AA1 from Renesas is an Arm Cortex-M0+ microcontroller operating at up to 32 MHz, featuring 256 KB code flash, 24 KB SRAM, and integrated DALI, CTSU, USBFS, CAN, and 14-bit ADC-designed for lighting control, industrial HMI, and low-power embedded systems requiring functional safety and security.
For engineers reviewing the R7FS128783A01CFJ#AA1 datasheet, R7FS128783A01CFJ#AA1 pinout, R7FS128783A01CFJ#AA1 application, or R7FS128783A01CFJ#AA1 equivalent, this page delivers verified specifications, package mapping (32-pin LQFP), pin-level circuit roles, real-world use cases, and two validated alternative parts with documented technical and application differences.
Technical Context
This MCU implements a single-core Arm Cortex-M0+ (r0p1-00rel0, Armv6-M) with Memory Protection Unit (8 regions), ECC-protected SRAM (16 KB), and parity-protected SRAM (8 KB). It integrates dual watchdogs (WDT + IWDT), Clock Frequency Accuracy Measurement Circuit (CAC), and register write protection for IEC 61508-compliant system monitoring.
The peripheral set includes three SCI modules (UART/IIC/SPI), two SPI, two I2C, one CAN 2.0B controller (32 mailboxes), USB 2.0 Full-Speed with on-chip transceiver and Battery Charging Spec 1.2 compliance, and a dedicated DALI module compliant with IEC 62386-101 Edition 2.0.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M0+, 32 MHz max - enables deterministic real-time control in cost-sensitive, low-power applications. |
| Memory | 256 KB code flash / 4 KB data flash / 24 KB SRAM - supports firmware updates, parameter storage, and real-time buffer handling without external memory. |
| Analog | 14-bit ADC (21 ch), 8-bit DAC (3 ch), 4 OPAMP, 3 ACMPHS, 2 ACMPLP, TSN - enables sensor signal conditioning, closed-loop analog control, and temperature-aware operation. |
| Connectivity | DALI (IEC 62386-101 Ed. 2.0), CAN 2.0B, USBFS (BC1.2), 3×SCI, 2×SPI, 2×I2C - provides native lighting bus, industrial fieldbus, and host interface capability in one chip. |
| Timers & Control | GPT32 ×1, GPT16H ×3, GPT16 ×3, AGT ×2, RTC - supports BLDC motor PWM generation, precise timing, calendar-based scheduling, and low-power event counting. |
| Security & Safety | AES128/256, TRNG, CRC calculator, DOC, ECC/SRAM parity, CAC, IWDT - meets SIL2-capable design requirements for secure boot, data integrity, and fail-safe recovery. |
| Package & Environment | 32-pin LQFP (7 mm × 7 mm, 0.8 mm pitch), -40°C to +105°C - suitable for compact industrial PCB layouts with extended thermal range. |
Pinout & Package
Package: 32-pin LQFP (PLQP0032GB-A), 7 mm × 7 mm, 0.8 mm pitch, lead-free (Sn only), RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Primary digital power domain (1.6–5.5 V); decoupling required per datasheet layout guidelines. |
| XTAL / EXTAL | Main clock oscillator interface | Supports 1–20 MHz crystal or external clock input for high-accuracy system timing. |
| SWDIO / SWCLK | ARM Serial Wire Debug interface | Enables non-intrusive debug, flash programming, and real-time trace via standard JTAG/SWD tools. |
| USB_DP / USB_DM | USB 2.0 Full-Speed differential pair | Integrated transceiver eliminates external PHY; supports device-mode enumeration and BC1.2 charging detection. |
| DRX0 / DTX0 | DALI physical layer interface | Direct connection to DALI bus (250 kbps, current-loop compatible); no external line driver required. |
| AN000–AN013 | Analog input channels | 14 of 21 ADC14 inputs mapped to pins; supports internal reference, temperature sensor, and external signal acquisition. |
| DA0–DA2 | DAC analog outputs | Three independent 8-bit voltage outputs for analog setpoint generation or calibration signal injection. |
| P000–P004, P010–P015, etc. | General-purpose I/O | 21 total GPIOs (19 with pull-up, 8 N-ch open-drain, 1 5-V tolerant) - configurable for peripheral multiplexing or direct control. |
Key Features
| Feature | Design Value |
|---|---|
| Digital Addressable Lighting Interface (DALI) | Fully integrated DALI 2 (IEC 62386-101 Ed. 2.0) controller with hardware-level protocol support-eliminates need for external UART-to-DALI bridge ICs. |
| Capacitive Touch Sensing Unit (CTSU) | 28-channel touch sensing engine with built-in noise immunity and auto-tuning-enables robust front-panel HMI on up to 28 electrodes without external RC networks. |
| USB Battery Charging 1.2 Support | On-chip USB LDO regulator and VBUS detection enable self-powered device identification and charging port negotiation-no external charger IC needed. |
| Functional Safety Architecture | Dual watchdogs (WDT + IWDT), CAC, ECC/SRAM parity, and register write protection provide layered fault detection for IEC 61508 SIL2-targeted designs. |
| Low-Power Analog Subsystem | Configurable ACMPLP comparators (low-speed/high-speed modes), 4 OPAMPs, and TSN enable always-on sensor monitoring with sub-μA quiescent current. |
Applications
| Smart Lighting Control | Industrial HMI Panel |
|---|---|
|
Use Scenario: Digital ballast and LED driver control in commercial lighting systems with group addressing, scene recall, and dimming profiles. IC Role / Device Role / Timing Role: Primary DALI master node executing IEC 62386-101 command parsing, timing-critical PWM generation for dimming, and USB-based configuration. Use Value: Single-chip DALI + USB + CTSU integration reduces BOM count by 3–4 components versus discrete solutions while enabling over-the-air firmware updates. |
Use Scenario: Operator interface for PLC-connected machinery with touch buttons, status LEDs, and real-time diagnostics display. IC Role / Device Role / Timing Role: HMI controller managing capacitive touch decoding (CTSU), local display refresh via SPI, and CAN-based communication with main controller. Use Value: CTSU's 28-channel capability supports multi-button panels with proximity wake-up; CAN interface ensures noise-immune link to industrial backplane. |
| BLDC Motor Drive Monitor | Secure Sensor Node |
|
Use Scenario: Compact fan or pump controller with hall-effect commutation, thermal monitoring, and fault reporting over USB or CAN. IC Role / Device Role / Timing Role: Real-time motor control unit using GPT16H timers for 3-phase PWM, AGT for RPM measurement, and TSN for thermal derating decisions. Use Value: Integrated 3-phase PWM outputs (GTOUUP/GTOULO, etc.) and hall sensor inputs (GTIU/GTIV/GTIW) eliminate gate-driver logic and reduce layout complexity. |
Use Scenario: Tamper-resistant environmental sensor node logging temperature, humidity, and vibration in critical infrastructure. IC Role / Device Role / Timing Role: Secure edge processor performing AES-encrypted data packaging, TRNG-based key derivation, and CRC-verified sensor reads before transmission. Use Value: On-chip AES256 and TRNG enable end-to-end encryption without external crypto co-processor-meeting NIST SP 800-171 data-at-rest and in-transit requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FS128783A01CFL | 48-pin LQFP, 34 GPIOs, 15 ADC channels, 1 I2C channel - larger package, more I/O, reduced analog channel count. | Preferred for designs needing additional GPIOs or SPI/I2C peripherals but not requiring DALI or USB. | Select when board space allows larger footprint and higher I/O count is prioritized over compactness and DALI integration. |
| R7FS128782A01CLM | 36-pin LGA, -40°C to +85°C rating, 25 GPIOs, 13 ADC channels, no USBFS or DALI - smaller footprint, lower temp grade, reduced connectivity. | Suitable for cost-optimized consumer-grade lighting or appliance controls where USB/DALI are unused. | Choose for space-constrained, non-industrial applications where extended temperature and full feature set are unnecessary. |
Compared with R7FS128783A01CFJ#AA1, R7FS128783A01CFL offers greater I/O scalability at the expense of board area, while R7FS128782A01CLM trades connectivity and temperature range for minimal footprint-neither is pin-compatible, but both share identical core architecture and toolchain compatibility.
Availability
R7FS128783A01CFJ#AA1 is available at Aetrix Electronics and suitable for smart lighting control, industrial HMI, BLDC motor monitoring, and secure sensor node applications requiring stable component supply across automotive-qualified production cycles.
Supply support for R7FS128783A01CFJ#AA1 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 global semiconductor leader specializing in microcontrollers, analog, and power management solutions for industrial, automotive, and IoT markets.
R7FS128783A01CFJ#AA1 belongs to the S128 Microcontroller Group-a Renesas Synergy™ family product line engineered for ultra-low-power, functionally safe, and secure embedded control in lighting, building automation, and industrial HMI.
FAQ
What is the maximum operating frequency and core architecture of the R7FS128783A01CFJ#AA1?
The R7FS128783A01CFJ#AA1 features an Arm Cortex-M0+ core with Armv6-M architecture, operating at a maximum frequency of 32 MHz. It implements revision r0p1-00rel0 and includes a single-cycle integer multiplier. This core delivers deterministic real-time performance with low power consumption, making it ideal for battery-operated and thermally constrained applications where the R7FS128783A01CFJ#AA1 is deployed.
Does the R7FS128783A01CFJ#AA1 support DALI 2 compliance, and what does that mean for lighting system design?
Yes, the R7FS128783A01CFJ#AA1 integrates a DALI module compliant with IEC 62386-101 Edition 2.0 (DALI 2), supporting bidirectional communication, device certification, and extended commands like fade time and scene storage. This means lighting designers using the R7FS128783A01CFJ#AA1 can implement certified DALI master nodes without external protocol translation hardware-reducing latency, bill-of-materials, and validation effort.
What analog peripherals are included in the R7FS128783A01CFJ#AA1, and how are they applied in sensor interface designs?
The R7FS128783A01CFJ#AA1 includes a 14-bit ADC (21 channels), three 8-bit DACs, four operational amplifiers, three high-speed analog comparators, two low-power analog comparators, and an on-die temperature sensor. In sensor interface designs, the R7FS128783A01CFJ#AA1 uses these to condition signals (OPAMP), detect thresholds (ACMPHS/ACMPLP), generate calibration references (DAC8), and digitize environmental data (ADC14 + TSN)-all within a single chip.
How does the R7FS128783A01CFJ#AA1 handle functional safety requirements such as those in IEC 61508?
The R7FS128783A01CFJ#AA1 supports functional safety through ECC-protected SRAM (16 KB), parity-protected SRAM (8 KB), Clock Frequency Accuracy Measurement Circuit (CAC), Independent Watchdog Timer (IWDT), register write protection, and bus error detection. These features enable diagnostic coverage sufficient for SIL2-targeted subsystems-making the R7FS128783A01CFJ#AA1 suitable for safety-critical lighting and industrial control where the R7FS128783A01CFJ#AA1 serves as the primary controller.
Is USB functionality available on the R7FS128783A01CFJ#AA1, and what USB standards does it support?
Yes, the R7FS128783A01CFJ#AA1 includes a USB 2.0 Full-Speed (USBFS) module with an integrated transceiver and on-chip LDO regulator. It supports USB device mode, full-speed (12 Mbps) and low-speed (1.5 Mbps) transfers, all USB transfer types (control/bulk/interrupt/isochronous), and USB Battery Charging Specification 1.2. This allows the R7FS128783A01CFJ#AA1 to act as a self-powered USB peripheral with charging port detection-ideal for firmware updates and configuration interfaces.
R7FS128783A01CFJ#AA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- Renesas Synergy™ S1
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 32MHz
- Connectivity:
- CANbus, DALI, I2C, SCI, SPI, UART/USART, USB
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 24
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 24K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 10x14b; D/A 3x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FS128783A01CFJ#AA1 FAQ
1.How can I place an order for R7FS128783A01CFJ#AA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FS128783A01CFJ#AA1 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 R7FS128783A01CFJ#AA1 reliable?
The price and inventory of R7FS128783A01CFJ#AA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FS128783A01CFJ#AA1 is usually 5 days.
3.What payment methods are accepted for R7FS128783A01CFJ#AA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FS128783A01CFJ#AA1 transactions.
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R7FS128783A01CFJ#AA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FS128783A01CFJ#AA1 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 R7FS128783A01CFJ#AA1?
For technical support, including R7FS128783A01CFJ#AA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FS128783A01CFJ#AA1 requirements.
6.How does Aetrix verify that R7FS128783A01CFJ#AA1 is sourced from the original manufacturer or authorized distributors?
All R7FS128783A01CFJ#AA1 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 R7FS128783A01CFJ#AA1 meets industry standards.
7.What is the process for return or replacement of R7FS128783A01CFJ#AA1?
All R7FS128783A01CFJ#AA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FS128783A01CFJ#AA1, 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 R7FS128783A01CFJ#AA1 part is unused and in its original packaging.
Return procedure for R7FS128783A01CFJ#AA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FS128783A01CFJ#AA1 Tags
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