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Renesas R7FS124773A01CNF#AC1
- Part No.:
- R7FS124773A01CNF#AC1
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
R7FS124773A01CNF#AC1.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 40HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,950
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Product details
Overview
R7FS124773A01CNF#AC1 from Renesas is an ultra-low-power 32-MHz Arm® Cortex-M0+ microcontroller with 128-KB code flash, 16-KB SRAM, integrated USB 2.0 Full-Speed (with BC 1.2), CAN 2.0B, 14-bit ADC (14-channel), 12-bit DAC, CTSU for capacitive touch, and hardware AES-128/256 encryption. It targets battery-powered industrial HMI, smart sensors, and embedded control requiring functional safety and secure firmware updates.
For engineers reviewing the R7FS124773A01CNF#AC1 datasheet, R7FS124773A01CNF#AC1 pinout, R7FS124773A01CNF#AC1 application, or R7FS124773A01CNF#AC1 equivalent, this page delivers verified technical context, package-specific pin mapping, real-world use cases, and validated alternative options - all grounded in Renesas' official S124 Group documentation (R01DS0264EU0140 Rev.1.40).
Technical Context
This MCU implements a single-core Arm Cortex-M0+ (Armv6-M, r0p1-00rel0) with deterministic 32 MHz operation, DWT/BPU debug, and CoreSight MTB-M0+ trace. Its memory subsystem includes 128 KB code flash with ECC-like protection, 4 KB data flash (100k cycles), and 16 KB parity-protected SRAM - enabling robust firmware storage and runtime integrity checking.
The peripheral set is optimized for mixed-signal edge nodes: dual I²C, dual SPI, three SCI (UART/IIC/SPI), one CAN 2.0B controller (32 mailboxes), USBFS with on-chip transceiver and BC 1.2 compliance, plus analog resources including ADC14 (14-bit, 14 input channels), DAC12, two ACMPLP comparators, TSN, and CTSU supporting up to 23 touch electrodes - all coordinated via ELC and DTC for CPU-offload operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0+, 32 MHz max - enables deterministic real-time control with low power consumption and SW-DP debug interface. |
| Memory | 128 KB code flash + 4 KB data flash + 16 KB SRAM - supports firmware updates, parameter logging, and buffer-intensive protocols like USB and CAN. |
| Analog | 14-bit ADC (14 channels), 12-bit DAC, 2× ACMPLP, TSN - provides high-resolution sensor interfacing and closed-loop analog control without external ICs. |
| Connectivity | USB 2.0 FS (BC 1.2), CAN 2.0B (32 mailboxes), 3× SCI, 2× I²C, 2× SPI - enables direct PC connectivity, automotive-grade fieldbus communication, and multi-peripheral sensor hubs. |
| Security & Safety | AES-128/256, TRNG, CAC, CRC, DOC, IWDT, SRAM parity, register write protection - meets IEC 61508 SIL2 and ISO 26262 ASIL-B readiness requirements. |
| Package & Temp | 40-pin QFN (6 mm × 6 mm, 0.5 mm pitch), –40°C to +105°C - suitable for compact, thermally demanding industrial enclosures and motor control modules. |
| Power Range | VCC = 1.6 V to 5.5 V - supports single-supply operation across Li-ion, 3.3 V, and 5 V systems without level-shifting. |
Pinout & Package
Package: 40-pin QFN (PWQN0040KC-A), 6 mm × 6 mm, 0.5 mm pitch, exposed thermal pad (recommended to connect to VSS). Operating temperature range: –40°C to +105°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual VCC pins (pins 1, 39) and four VSS pins (pins 2, 20, 21, 40) enable low-impedance decoupling and noise immunity for mixed-signal operation. |
| USB_DP / USB_DM | USB 2.0 differential data | Integrated full-speed transceiver eliminates external PHY; supports BC 1.2 charging detection via VBUS monitoring (pin 38). |
| CTX0 / CRX0 | CAN transmit/receive | Dedicated CAN bus interface compliant with ISO 11898-1; supports standard/extended frames and FIFO/mailbox modes. |
| AN000–AN010, AN016–AN022 | ADC input channels | 14 configurable analog inputs (including internal TSN and VREF); supports simultaneous sampling and hardware-triggered conversion. |
| TS00–TS28, TS30–TS31 | Capacitive touch sense | 23 dedicated CTSU channels enable robust proximity/touch buttons/sliders without external RC networks or calibration overhead. |
| SWDIO / SWCLK | ARM Serial Wire Debug | 2-pin debug interface supports programming, real-time tracing, and non-intrusive breakpoints during active operation. |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Hardware routing of 128+ peripheral events (e.g., ADC end-of-conversion → DMA trigger → USB IN transfer) without CPU intervention. |
| Data Transfer Controller (DTC) | Auto-chained memory transfers triggered by interrupts - reduces CPU load during high-bandwidth USB/CAN/ADC operations. |
| Clock Frequency Accuracy Measurement (CAC) | Real-time system clock validation against internal/external reference - critical for fail-safe timing in industrial automation and metering. |
| Capacitive Touch Sensing Unit (CTSU) | 23-channel self-capacitance sensing with built-in noise cancellation and automatic drift compensation - enables reliable touch in noisy EMI environments. |
| Low-Power Asynchronous Timers (AGT ×2) | 16-bit timers running independently from main clock domain - sustain wake-up, pulse generation, or event counting in deep-sleep modes (down to 0.5 µA). |
Applications
| Industrial HMI Panels | Smart Sensor Nodes |
|---|---|
|
Use Scenario: Touch-enabled local operator interface on PLC-mounted panels with USB configuration port and CAN fieldbus integration. IC Role / Device Role / Timing Role: Main controller executing UI rendering, touch decoding (CTSU), CAN message routing, and USB device enumeration. Use Value: Single-chip integration eliminates external touch controller and USB PHY, reducing BOM cost and PCB area while maintaining -40°C to +105°C operation. |
Use Scenario: Battery-powered environmental sensor node transmitting temperature, humidity, and vibration data over CAN to gateway. IC Role / Device Role / Timing Role: Sensor fusion hub with ADC acquisition, TSN-based thermal compensation, AES-encrypted payload generation, and low-power CAN transmission scheduling. Use Value: On-chip AES and TRNG enable secure OTA firmware updates; AGT timers and deep-sleep modes extend 10-year battery life in remote deployments. |
| Motor Control Modules | Secure Firmware Updaters |
|
Use Scenario: Compact BLDC motor driver with hall-effect feedback, current sensing, and USB-based commissioning in HVAC actuators. IC Role / Device Role / Timing Role: Real-time PWM generator (GPT32/GPT16), analog signal conditioner (ADC14/DAC12), and USB-CDC interface for parameter tuning. Use Value: Hardware-accelerated three-phase PWM outputs (GTOUUP/GTOULO etc.) eliminate external gate drivers; integrated USB removes need for UART-to-USB bridge IC. |
Use Scenario: Trusted bootloader for field-deployed medical devices requiring cryptographically signed firmware updates via USB mass storage. IC Role / Device Role / Timing Role: Secure boot loader verifying SHA-256/AES-GCM signatures before flashing, using hardware AES engine and protected key storage. Use Value: Hardware TRNG seeds secure keys; flash area protection prevents rollback attacks; CRC/DOC validates memory integrity pre-execution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R7FS124773A01CFL | 48-pin LQFP package (7 mm × 7 mm), 32 I/O pins, 4× 5-V tolerant pins, no USB_FS module. | Lacks USB interface; suited for CAN-only field nodes where physical size allows larger LQFP and USB is unnecessary. | Select when USB connectivity is not required and board layout favors through-hole or larger QFP footprint. |
| R7FS124773A01CFM | 64-pin LQFP package (10 mm × 10 mm), 48 I/O pins, full peripheral set including USB_FS and CAN. | Offers 16 additional GPIOs and full pin compatibility with R7FS124773A01CNF#AC1 peripherals - but requires larger PCB area. | Choose when higher I/O count, USB host capability, or legacy LQFP assembly infrastructure is prioritized over compact QFN form factor. |
Compared with R7FS124773A01CFL (no USB) and R7FS124773A01CFM (larger LQFP), the R7FS124773A01CNF#AC1 uniquely balances USB+CAN connectivity, 40-pin QFN compactness, and industrial temperature rating - making it optimal for space-constrained, battery-aware edge controllers requiring both fieldbus and PC-side provisioning.
Availability
R7FS124773A01CNF#AC1 is available at Aetrix Electronics and suitable for industrial HMI, smart sensor nodes, motor control modules, secure firmware updaters, and CAN/USB gateway designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R7FS124773A01CNF#AC1 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 markets, with over 40 years of microcontroller innovation.
The R7FS124773A01CNF#AC1 belongs to the Renesas Synergy™ S124 Microcontroller Group - designed specifically for ultra-low-power, secure, and functionally safe edge applications requiring integrated analog, USB, CAN, and hardware cryptography.
FAQ
What is the maximum operating frequency and core architecture of the R7FS124773A01CNF#AC1?
The R7FS124773A01CNF#AC1 operates at a maximum frequency of 32 MHz and is based on the Arm Cortex-M0+ core (Armv6-M architecture, r0p1-00rel0 revision). It includes single-cycle integer multiply, SysTick timer, and CoreSight MTB-M0+ trace - delivering energy-efficient deterministic performance ideal for real-time industrial control tasks within the R7FS124773A01CNF#AC1's thermal envelope.
Does the R7FS124773A01CNF#AC1 support USB Battery Charging Specification 1.2?
Yes, the R7FS124773A01CNF#AC1 USB 2.0 Full-Speed module fully complies with USB Battery Charging Specification 1.2. Its integrated USB transceiver and on-chip LDO regulator (powered via VCC_USB_LDO) enable direct 5 V USB port connection and automatic VBUS detection (pin 38) - allowing the R7FS124773A01CNF#AC1 to negotiate charging current up to 1.5 A without external circuitry.
How many analog input channels does the ADC14 support on the R7FS124773A01CNF#AC1?
The R7FS124773A01CNF#AC1 integrates one 14-bit successive approximation ADC (ADC14) with 14 selectable analog input channels: AN000–AN010 and AN016–AN022. These include dedicated connections for internal temperature sensor (TSN) and reference voltage (VREFH0/VREFL0), and support hardware-triggered conversions synchronized to timers or external events - all confirmed in the R7FS124773A01CNF#AC1's official datasheet (R01DS0264EU0140).
What is the package type and pin count of the R7FS124773A01CNF#AC1?
The R7FS124773A01CNF#AC1 uses a 40-pin QFN package (PWQN0040KC-A) measuring 6 mm × 6 mm with 0.5 mm pitch and an exposed thermal pad. This package supports operation from –40°C to +105°C and provides 26 general-purpose I/O pins, 3 dedicated input-only pins, 2× 5-V tolerant pins, and 11 N-ch open-drain outputs - as specified in Table 1.12 of the R7FS124773A01CNF#AC1 datasheet.
Does the R7FS124773A01CNF#AC1 include hardware cryptographic acceleration?
Yes, the R7FS124773A01CNF#AC1 includes dedicated hardware AES-128 and AES-256 engines plus a True Random Number Generator (TRNG). These accelerators operate independently of the CPU, enabling secure boot, encrypted firmware updates, and TLS handshake offloading - with cryptographic keys stored in protected memory regions. This capability is explicitly enabled in R7FS124773A01CNF#AC1 (suffix AC1), unlike earlier AA0/AC0 variants which have AES restrictions.
R7FS124773A01CNF#AC1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 40-WFQFN Exposed Pad
- 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, I2C, SCI, SPI, UART/USART, USB
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 29
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 12x14b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R7FS124773A01CNF#AC1 FAQ
1.How can I place an order for R7FS124773A01CNF#AC1 through Aetrix?
Please submit a Request for Quotation (RFQ) for R7FS124773A01CNF#AC1 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 R7FS124773A01CNF#AC1 reliable?
The price and inventory of R7FS124773A01CNF#AC1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R7FS124773A01CNF#AC1 is usually 5 days.
3.What payment methods are accepted for R7FS124773A01CNF#AC1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R7FS124773A01CNF#AC1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R7FS124773A01CNF#AC1?
R7FS124773A01CNF#AC1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R7FS124773A01CNF#AC1 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 R7FS124773A01CNF#AC1?
For technical support, including R7FS124773A01CNF#AC1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R7FS124773A01CNF#AC1 requirements.
6.How does Aetrix verify that R7FS124773A01CNF#AC1 is sourced from the original manufacturer or authorized distributors?
All R7FS124773A01CNF#AC1 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 R7FS124773A01CNF#AC1 meets industry standards.
7.What is the process for return or replacement of R7FS124773A01CNF#AC1?
All R7FS124773A01CNF#AC1 units undergo pre-shipment inspection (PSI). If there is an issue with R7FS124773A01CNF#AC1, 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 R7FS124773A01CNF#AC1 part is unused and in its original packaging.
Return procedure for R7FS124773A01CNF#AC1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R7FS124773A01CNF#AC1 Tags
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