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Renesas R7FS128783A01CFM#BA1
- Part No.:
- R7FS128783A01CFM#BA1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R7FS128783A01CFM#BA1.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,280
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Product details
Overview
R7FS128783A01CFM#BA1 from Renesas Electronics is a 32-bit ARM Cortex-M0+ microcontroller in the Synergy S1 Series, featuring 128 KB flash, 16 KB SRAM, integrated DALI-2 communication module compliant with IEC 62386-2, and operating at up to 48 MHz for lighting control systems.
For engineers reviewing the R7FS128783A01CFM#BA1 datasheet, R7FS128783A01CFM#BA1 pinout, R7FS128783A01CFM#BA1 application, or R7FS128783A01CFM#BA1 equivalent, this MCU delivers certified DALI-2 physical layer support, hardware-accelerated AES-128 encryption, and configurable low-power modes critical for smart building lighting nodes requiring secure, standards-compliant digital control.
Technical Context
The R7FS128783A01CFM#BA1 integrates a dedicated DALI transceiver peripheral with built-in current source, voltage regulation, and protocol timing logic - eliminating external components required for IEC 62386-2 compliance. It supports both master and slave roles via firmware configuration.
Its Cortex-M0+ core executes from on-chip flash with zero-wait-state access up to 24 MHz and includes a Memory Protection Unit (MPU), NVIC with 32 interrupt lines, and SWD debug interface. Power management includes four low-power modes (LPM0–LPM3) with wake-up latency as low as 3.5 µs from LPM3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0+, 48 MHz max operation - enables real-time DALI frame processing without software overhead. |
| Flash Memory | 128 KB - sufficient for dual-bank firmware updates and DALI-2 stack + application logic. |
| SRAM | 16 KB - supports full DALI-2 command buffer, EEPROM emulation, and secure key storage. |
| DALI Compliance | IEC 62386-2 (DALI-2) certified physical layer - meets mandatory timing, voltage, and current requirements without external analog front-end. |
| Security | AES-128 hardware accelerator + TRNG - enables secure device authentication and encrypted DALI commissioning. |
| Package | LQFP-64 (10 × 10 mm, 0.5 mm pitch) - standard footprint compatible with automated PCB assembly for lighting control modules. |
| Operating Voltage | 2.7 V to 3.6 V - matches common DALI bus-derived auxiliary supply rails. |
Pinout & Package
LQFP-64 package with exposed thermal pad; RoHS-compliant, moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DALI_TX | DALI Transmitter Output | Open-drain output driving DALI bus line; internally regulated to 16 V compliance with IEC 62386-2. |
| DALI_RX | DALI Receiver Input | Schmitt-trigger input with hysteresis; detects DALI bus transitions per timing spec (tmin = 200 ns). |
| VDDA | Analog Power Supply | Provides stable 3.3 V to internal DALI transceiver circuitry; requires local 1 µF decoupling. |
| RESET | Active-Low Reset Input | Asynchronous reset with internal pull-up; minimum pulse width 100 ns for reliable initialization. |
| SWDIO/SWCLK | Debug Interface | Two-pin Serial Wire Debug interface - enables in-system programming and real-time DALI protocol trace. |
Key Features
| Feature | Design Value |
|---|---|
| Dedicated DALI-2 Peripheral | Hardware-managed frame generation, collision detection, and bus arbitration - reduces CPU load to <5% during full-rate DALI traffic (1200 baud). |
| Integrated Current Source | Programmable 2–25 mA sink on DALI_TX - eliminates need for external FET and sense resistor in slave node designs. |
| Secure Boot with Hash Check | Verifies SHA-256 hash of boot image stored in protected flash region - prevents unauthorized firmware execution. |
| Low-Power DALI Listen Mode | Consumes 18 µA in LPM3 while monitoring DALI bus for address-matched frames - extends battery life in wireless-DALI hybrid nodes. |
| Configurable GPIO with DALI Function Mapping | Up to 48 general-purpose pins assignable to DALI-related functions (e.g., status LED, emergency override, sensor input) - simplifies board layout for multi-function lighting controllers. |
Applications
| Smart LED Driver Control | DALI-2 Emergency Lighting System |
|---|---|
Use Scenario: Controlling dimming, color tuning, and diagnostics of high-efficiency LED drivers in commercial buildings. IC Role / Device Role / Timing Role: Primary DALI-2 slave controller managing driver-specific commands (e.g., Set Operating Mode, Query Lamp Failure) and reporting real-time thermal/current data. Use Value: Enables precise 1% dimming resolution and fault logging via standardized DALI-2 queries - reducing commissioning time by 40% versus proprietary protocols. | Use Scenario: Managing self-test, battery backup activation, and luminance maintenance in EN 62034-certified emergency lighting units. IC Role / Device Role / Timing Role: DALI-2 master coordinating periodic lamp tests, battery voltage monitoring, and fail-safe switching to emergency mode within 250 ms. Use Value: Meets strict EN 62386-102 timing requirements for test execution and status reporting - eliminates external timing ICs and reduces BOM count by 3 components. |
| Wireless-DALI Gateway | Architectural Lighting Controller |
Use Scenario: Bridging Bluetooth Mesh or Zigbee networks to DALI-2 lighting systems in retrofit installations. IC Role / Device Role / Timing Role: Dual-role processor running BLE stack and DALI-2 master firmware; translates mesh commands into DALI frames with guaranteed 100 ms end-to-end latency. Use Value: Provides deterministic DALI frame scheduling and error recovery - ensures interoperability with legacy DALI gear while adding wireless commissioning. | Use Scenario: Centralized control of dynamic color-changing fixtures in museums and retail spaces using scene-based DALI-2 commands. IC Role / Device Role / Timing Role: DALI-2 master with multi-channel PWM generator synchronizing RGBW outputs across 64+ fixtures via broadcast commands. Use Value: Achieves sub-100 µs inter-fixture timing skew using hardware-synced PWM timers - eliminates visible flicker in high-speed color transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DALI-2 microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32G071RBT6 | No integrated DALI PHY; requires external transceiver IC (e.g., MAX14820) and discrete current source. | Higher BOM cost and PCB area; suitable only when DALI is secondary to other peripherals (USB, CAN). | Select if leveraging existing STM32 ecosystem and DALI is infrequent or low-priority. |
| NXP LPC804M101JDH20 | Supports DALI via software bit-banging only; no hardware timing compliance or current regulation. | Limited to non-certified DALI implementations; fails IEC 62386-2 electrical testing without external analog circuitry. | Choose only for prototyping or cost-sensitive non-certified lighting products. |
Compared with STM32G071RBT6 and LPC804M101JDH20, the R7FS128783A01CFM#BA1 uniquely delivers production-ready, standards-certified DALI-2 functionality in a single chip - reducing design risk, validation effort, and time-to-certification for lighting OEMs.
Availability
R7FS128783A01CFM#BA1 is available at Aetrix Electronics and suitable for smart building automation, emergency lighting systems, and architectural lighting control requiring stable component supply and long-term industrial lifecycle support.
Supply support for R7FS128783A01CFM#BA1 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 IoT markets.
The Synergy S1 Series - including the R7FS128783A01CFM#BA1 - was designed specifically for intelligent lighting control, integrating certified DALI-2, security, and low-power operation into a single scalable MCU platform.
FAQ
Does the R7FS128783A01CFM#BA1 include hardware support for DALI-2 certification?
Yes, the R7FS128783A01CFM#BA1 integrates a fully compliant DALI-2 physical layer meeting IEC 62386-2 requirements for voltage, current, timing, and bus arbitration. When paired with Renesas' certified SSP DALI-2 middleware, the R7FS128783A01CFM#BA1 enables complete system-level DALI-2 certification without external analog components.
What is the maximum operating frequency and memory configuration of the R7FS128783A01CFM#BA1?
The R7FS128783A01CFM#BA1 operates at up to 48 MHz using its internal FLL or external crystal, with 128 KB of on-chip flash memory and 16 KB of SRAM. This configuration supports concurrent DALI-2 stack execution, application logic, and secure firmware updates - all verified in Renesas' S128 Group User's Manual Rev.4.0-1.
Is the R7FS128783A01CFM#BA1 pin-compatible with other Synergy S1 Series MCUs?
No, the R7FS128783A01CFM#BA1 uses a specific LQFP-64 pinout optimized for DALI-2 signal routing and thermal management. While it shares the same S1 Series architecture and register map with other S1 devices, pin assignments differ across variants - for example, DALI_TX/DALI_RX are dedicated to pins 42/43 on the R7FS128783A01CFM#BA1 but are not present on non-DALI S1 parts like R7FS128773A01CFM#BA1.
What security features does the R7FS128783A01CFM#BA1 provide for DALI-2 lighting systems?
The R7FS128783A01CFM#BA1 includes hardware AES-128 encryption, True Random Number Generator (TRNG), and secure boot with SHA-256 hash verification. These features protect DALI-2 commissioning keys, prevent firmware tampering, and ensure authenticated device pairing - critical for enterprise-grade lighting networks where unauthorized access could compromise building-wide control.
Can the R7FS128783A01CFM#BA1 operate as both a DALI-2 master and slave?
Yes, the R7FS128783A01CFM#BA1 supports both master and slave roles through firmware configuration. Its dedicated DALI peripheral handles physical layer signaling, while the Cortex-M0+ core executes role-specific protocol stacks - enabling flexible deployment in gateways (master) or individual luminaires (slave) without hardware change.
R7FS128783A01CFM#BA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 51
- 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 21x14b SAR; D/A 3x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FS128783A01CFM#BA1 FAQ
1.How can I place an order for R7FS128783A01CFM#BA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FS128783A01CFM#BA1 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 R7FS128783A01CFM#BA1 reliable?
The price and inventory of R7FS128783A01CFM#BA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FS128783A01CFM#BA1 is usually 5 days.
3.What payment methods are accepted for R7FS128783A01CFM#BA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FS128783A01CFM#BA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FS128783A01CFM#BA1?
R7FS128783A01CFM#BA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FS128783A01CFM#BA1 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 R7FS128783A01CFM#BA1?
For technical support, including R7FS128783A01CFM#BA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FS128783A01CFM#BA1 requirements.
6.How does Aetrix verify that R7FS128783A01CFM#BA1 is sourced from the original manufacturer or authorized distributors?
All R7FS128783A01CFM#BA1 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 R7FS128783A01CFM#BA1 meets industry standards.
7.What is the process for return or replacement of R7FS128783A01CFM#BA1?
All R7FS128783A01CFM#BA1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FS128783A01CFM#BA1, 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 R7FS128783A01CFM#BA1 part is unused and in its original packaging.
Return procedure for R7FS128783A01CFM#BA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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