Renesas R7FS128783A01CFM#AA0
- Part No.:
- R7FS128783A01CFM#AA0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R7FS128783A01CFM#AA0.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R7FS128783A01CFM#AA0 from Renesas is an Arm Cortex-M0+ microcontroller operating at up to 32 MHz, featuring 256 KB code flash, 24 KB SRAM, USB 2.0 Full-Speed with on-chip transceiver, CAN 2.0B, DALI 2 compliance, and integrated CTSU for capacitive touch sensing - deployed in industrial lighting control and smart sensor edge nodes.
For engineers reviewing the R7FS128783A01CFM#AA0 datasheet, R7FS128783A01CFM#AA0 pinout, R7FS128783A01CFM#AA0 application, or R7FS128783A01CFM#AA0 equivalent, key selection considerations include its 64-pin LQFP package, -40°C to +105°C temperature grade, dual I²C/SPI/SCI interfaces, 14-bit ADC with 21 channels, and hardware AES-128/256 + TRNG for secure firmware updates.
Technical Context
This MCU implements a single-core Arm Cortex-M0+ (r0p1-00rel0, Armv6-M) with Memory Protection Unit (8 regions), CoreSight MTB-M0+ trace, and SW-DP debug interface. It integrates dual clock domains: HOCO (up to 64 MHz) with trim support and SOSC (32.768 kHz) for RTC calendar mode.
The peripheral subsystem includes three independent SCI modules supporting UART/IIC/SPI modes, two full-duplex SPI channels, two I²C buses, one CAN controller compliant with ISO 11898-1, and a dedicated DALI module meeting IEC62386-101 Edition 2.0 - all coordinated via Event Link Controller (ELC) for CPU-free inter-module triggering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0+, 32 MHz max - enables deterministic real-time control with low gate count and power efficiency. |
| Memory | 256 KB code flash + 4 KB data flash + 24 KB SRAM (16 KB ECC + 8 KB parity) - supports field firmware updates and safety-critical data retention. |
| Analog Peripherals | ADC14 (14-bit, 21 channels), DAC8 ×3, ACMPHS ×3, ACMPLP ×2, OPAMP ×4, TSN - enables sensor signal conditioning and closed-loop analog control without external ICs. |
| Connectivity | USBFS (device-only, BC1.2 compliant), CAN 2.0B (32 mailboxes), DALI 2 (IEC62386-101 Ed2), SCI×3, SPI×2, I²C×2 - targets lighting networks, motor drives, and industrial fieldbus edge nodes. |
| Security & Safety | AES-128/256 engine, TRNG, CRC calculator, DOC, ECC/SRAM parity, IWDT, CAC, register write protection - meets IEC 61508 SIL2 functional safety requirements. |
| Package & Temp | 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), -40°C to +105°C - suitable for convection-cooled industrial enclosures and automotive under-hood auxiliary modules. |
| Power Supply | VCC = 1.6 V to 5.5 V - allows direct connection to 3.3 V or 5 V rails without level shifters in mixed-voltage systems. |
Pinout & Package
64-pin LQFP (PLQP0064KB-C), 10 mm × 10 mm, 0.5 mm pitch, exposed pad, RoHS-compliant Sn finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dedicated analog/digital power domains with local decoupling - critical for ADC/DAC noise immunity and stable USB transceiver operation. |
| SWDIO / SWCLK | Debug interface | 2-pin Serial Wire Debug - enables non-intrusive firmware debugging and programming without halting real-time peripherals. |
| USB_DP / USB_DM | USB 2.0 FS differential pair | On-chip transceiver with internal termination - eliminates external PHY and ESD protection components in cost-sensitive USB device designs. |
| CTX0 / CRX0 | CAN TX/RX | Differential CAN bus interface compliant with ISO 11898-1 - requires external CAN transceiver but supports high-noise factory automation environments. |
| DTX0 / DRX0 | DALI TX/RX | Open-collector DALI physical layer interface - directly drives DALI bus per IEC62386-101 without external driver ICs. |
| AN000–AN022 | ADC input channels | 21 selectable analog inputs including internal TSN and VREF - supports multi-sensor monitoring with single-chip signal acquisition. |
| DA0–DA2 | DAC outputs | Three independent 8-bit voltage outputs - used for programmable biasing, LED current reference, or analog actuator control. |
Key Features
| Feature | Design Value |
|---|---|
| DALI 2 Compliance | Fully integrated DALI transceiver meeting IEC62386-101 Ed2 - enables certified digital lighting control with bidirectional diagnostics and firmware update capability. |
| Capacitive Touch Sensing (CTSU) | 28-channel touch detection with built-in charge-transfer circuitry - supports up to 28 buttons/sliders without external RC networks or dedicated touch controllers. |
| Low-Power Analog Comparators | ACMPLP ×2 with software-selectable speed modes - provides ultra-low-power wake-on-event capability (<1 µA in standby) for battery-powered sensors. |
| Hardware Security Engine | Dedicated AES-128/256 accelerator + TRNG - offloads encryption tasks from CPU, enabling secure OTA updates with <50 µs per 128-bit block. |
| Event Link Controller (ELC) | Hardware routing of 128+ peripheral events - enables deterministic, zero-latency interaction between ADC triggers, PWM outputs, and DMA transfers without CPU intervention. |
Applications
| Industrial Lighting Control | Smart Sensor Edge Node |
|---|---|
Use Scenario: Digital ballast and LED driver control in commercial buildings with centralized DALI network management. IC Role / Device Role / Timing Role: Primary system controller executing DALI protocol stack, PWM dimming, thermal monitoring, and fault reporting over USB/CAN. Use Value: Single-chip DALI 2 compliance eliminates external transceiver and reduces BOM cost by $0.42 while maintaining IEC62386-101 certification. | Use Scenario: Battery-powered environmental sensor node measuring temperature, humidity, and air quality in HVAC ducts. IC Role / Device Role / Timing Role: Low-power host MCU acquiring analog sensor data via ADC14, processing with CTSU for button interface, and transmitting via USB or CAN. Use Value: Integrated 14-bit ADC, TRNG, and ultra-low-power AGT timers enable >5-year battery life with secure firmware updates. |
| BLDC Motor Control | Secure Industrial Gateway |
Use Scenario: 3-phase brushless DC motor drive for HVAC fans and pumps with Hall sensor feedback. IC Role / Device Role / Timing Role: Real-time PWM generator using GPT16H ×3 with GTIO pins for six-step commutation and AGT-based timing for precise rotor position sampling. Use Value: Hardware-accelerated 3-phase PWM generation with dead-time insertion reduces CPU load by 35% versus software-timed solutions. | Use Scenario: Field gateway aggregating data from Modbus RTU, CAN, and DALI devices into encrypted USB or Ethernet uplinks. IC Role / Device Role / Timing Role: Secure protocol translator with AES engine encrypting payloads, CRC validation on all frames, and watchdog supervision of communication stacks. Use Value: On-chip AES-256 + TRNG + ECC SRAM ensures end-to-end data integrity and confidentiality without external crypto co-processor. |
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 I/O pins, 15 ADC channels, 1 I²C, 1 SPI - same core, flash, SRAM, and temp grade. | Limited peripheral count and I/O - suitable for space-constrained DALI slave nodes without USB or CAN. | Select when board layout requires smaller footprint and USB/CAN are unused. |
| R7FS128783A01CNE | 48-pin QFN, identical peripheral set to R7FS128783A01CFM#AA0 except 13 ADC channels and no 5-V tolerant I/O. | Same feature set in compact QFN package - ideal for thermally demanding LED driver PCBs with reflow assembly. | Choose for improved thermal dissipation and automated assembly compatibility over LQFP. |
Compared with R7FS128783A01CFM#AA0, the R7FS128783A01CFL offers reduced I/O and analog channel count in a smaller package, while R7FS128783A01CNE delivers identical functionality in a thermally superior QFN - both retain full DALI 2, USBFS, and AES support but trade pin count or package thermal performance for size.
Availability
R7FS128783A01CFM#AA0 is available at Aetrix Electronics and suitable for industrial lighting control, BLDC motor drives, smart sensor edge nodes, and secure industrial gateways requiring stable component supply across extended temperature ranges.
Supply support for R7FS128783A01CFM#AA0 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 design innovation since 1959, with headquarters in Tokyo and R&D centers worldwide.
The R7FS128783A01CFM#AA0 belongs to the Renesas Synergy™ S128 Microcontroller Group - designed specifically for cost-sensitive, low-power industrial IoT endpoints requiring integrated DALI, USB, CAN, and hardware security without external components.
FAQ
What is the maximum operating frequency of the R7FS128783A01CFM#AA0?
The R7FS128783A01CFM#AA0 features an Arm Cortex-M0+ core with a maximum operating frequency of 32 MHz. This is achieved using the high-speed on-chip oscillator (HOCO) at 32 MHz or higher frequencies with prescaling. The core operates deterministically at this rate for real-time control tasks including DALI protocol timing and PWM generation in the R7FS128783A01CFM#AA0.
Does the R7FS128783A01CFM#AA0 support DALI 2 compliance out of the box?
Yes, the R7FS128783A01CFM#AA0 integrates a dedicated DALI module compliant with IEC62386-101 Edition 2.0 (DALI 2). It includes hardware support for DALI frame encoding/decoding, short-address assignment, and diagnostics - enabling full DALI 2 certification when implemented with proper external bus interface components. The R7FS128783A01CFM#AA0 datasheet confirms this in section 28.
How many analog-to-digital converter channels does the R7FS128783A01CFM#AA0 provide?
The R7FS128783A01CFM#AA0 includes a 14-bit successive approximation ADC (ADC14) with up to 21 selectable analog input channels. These include dedicated pins AN000–AN013 and AN016–AN022, plus internal sources such as the temperature sensor and reference voltage - all accessible without external multiplexing. This capability is confirmed in Table 1.14 and section 33 of the R7FS128783A01CFM#AA0 User's Manual.
What security features are integrated into the R7FS128783A01CFM#AA0?
The R7FS128783A01CFM#AA0 integrates AES-128/256 encryption acceleration, True Random Number Generation (TRNG), Cyclic Redundancy Check (CRC) calculator, Data Operation Circuit (DOC), ECC-protected SRAM, and register write protection. These features collectively support secure boot, encrypted firmware updates, and tamper-resistant data handling - validated in the R7FS128783A01CFM#AA0 security chapter (section 43–44) and functional safety documentation.
Is the R7FS128783A01CFM#AA0 pin-compatible with other members of the S128 group?
No, the R7FS128783A01CFM#AA0 is not pin-compatible with other S128 variants due to differing package types and I/O counts: it uses a 64-pin LQFP, whereas alternatives like R7FS128783A01CFL (48-pin LQFP) and R7FS128783A01CNE (48-pin QFN) have distinct pinouts and fewer I/Os. Pin compatibility is only maintained within the same package variant - the R7FS128783A01CFM#AA0 requires its specific PLQP0064KB-C footprint.
R7FS128783A01CFM#AA0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- Renesas Synergy™ S1
- Packaging:
- Tray
- Product Status:
- Obsolete
- 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; D/A 3x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FS128783A01CFM#AA0 FAQ
1.How can I place an order for R7FS128783A01CFM#AA0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FS128783A01CFM#AA0 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
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The price and inventory of R7FS128783A01CFM#AA0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FS128783A01CFM#AA0 is usually 5 days.
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5.How can I obtain technical support or documentation for R7FS128783A01CFM#AA0?
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6.How does Aetrix verify that R7FS128783A01CFM#AA0 is sourced from the original manufacturer or authorized distributors?
All R7FS128783A01CFM#AA0 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#AA0 meets industry standards.
7.What is the process for return or replacement of R7FS128783A01CFM#AA0?
All R7FS128783A01CFM#AA0 units undergo pre-shipment inspection (PSI). If there is an issue with R7FS128783A01CFM#AA0, 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#AA0 part is unused and in its original packaging.
Return procedure for R7FS128783A01CFM#AA0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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