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Renesas R5F526TFADFN#10
- Part No.:
- R5F526TFADFN#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F526TFADFN#10.pdf
- Description:
- 32BIT MCU RX26T 512K 80LFQFP -40
- Quantity:
- Payment:
- Shipping:
Inventory:4,336
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Product details
Overview
R5F526TFADFN#10 from Renesas is a 32-bit RXv3 microcontroller optimized for motor control and power conversion, featuring a 120 MHz CPU core, 512 KB on-chip code flash, 64 KB SRAM, 16 KB data flash, integrated CAN FD interface, and high-resolution PWM with 260 ps timing resolution. It targets real-time inverter control in industrial drives and HVAC compressors.
For engineers reviewing the R5F526TFADFN#10 datasheet, R5F526TFADFN#10 pinout, R5F526TFADFN#10 application, or R5F526TFADFN#10 equivalent, key selection criteria include its 120 MHz GPTWa timer with 3-phase/5-phase complementary PWM support, dual-bank flash for safe firmware updates, IEC60730-compliant safety features (IWDT, oscillation-stop detection, CRC, MPU), and hardware-accelerated trigonometric functions (TFUv2) for field-oriented control.
Technical Context
The R5F526TFADFN#10 implements the RXv3 CPU core with single-cycle instruction execution, IEEE 754-compliant single-precision FPU, and collective register bank save for fast interrupt response. Its clock system integrates PLL, HOCO (16/18/20 MHz), LOCO (240 kHz), and IWDT-dedicated 120 kHz oscillator - enabling precise timing across PCLKA (120 MHz), PCLKB (60 MHz), PCLKC (120 MHz), and PCLKD (60 MHz) domains.
Motor control is enabled by tightly coupled peripherals: MTU3d (9-channel 16-bit timer) and GPTWa (8-channel 32-bit timer) both synchronized to PCLKC for sub-nanosecond PWM edge placement; HRPWM (4 channels) overlays 260 ps resolution on GPTW0–GPTW3 outputs; S12ADH (12-bit ADC with 3 sample-and-hold units) supports simultaneous sampling of up to 7 analog inputs for current/voltage sensing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv3 32-bit, 120 MHz max, 709 CoreMark, single-cycle instruction execution |
| Memory | 512 KB code flash (dual-bank, no-wait at 120 MHz), 64 KB SRAM (no-wait), 16 KB data flash (100k write cycles) |
| PWM Capability | GPTWa: 8×32-bit channels; MTU3d: 9×16-bit channels; HRPWM: 4 channels @ 260 ps min resolution |
| Analog Peripherals | S12ADH: 12-bit ADC with 3 sample-and-hold units (7 ch + 8 ch configuration); CMPCa: 6-channel comparator; R12DAb: 2×12-bit DAC |
| Communication | CAN FD (ISO 11898-1:2015), 4×SCI, 3×RSCI (with Manchester/HBS), RIICa (400 kbps I²C/SMBus), RI3C (I3C SDR), RSPId (30 Mbps SPI) |
| Safety & Security | IEC60730 support: IWDT with window function, oscillation-stop detection, CRCA (8/32-bit CRC), MPU (8 regions), Trusted Memory (TM), register write protection |
| Package | PWQN0064KF-A: 64-pin HWQFN, 9 × 9 mm, 0.5 mm pitch, –40°C to +85°C (D-version) |
Pinout & Package
PWQN0064KF-A is a 64-pin, 9 × 9 mm, 0.5 mm pitch HWQFN package with exposed thermal pad. Pin functions are defined per Renesas R01DS0407EJ0120 Rev.1.20, pages 42–47 (pin assignment tables for 64-pin variants).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply / Ground | Core and I/O supply pins; multiple VCC/VSS pairs ensure low-noise operation and robust decoupling for motor control noise immunity |
| XTAL/EXTAL | Main clock oscillator interface | Connects to 8–24 MHz crystal; enables PLL reference for stable 120 MHz system clock and jitter-free PWM generation |
| MTIOC0A–MTIOC0D | MTU3d waveform output | Drive 3-phase inverter gate drivers; support complementary PWM with programmable dead time and synchronous clearing |
| GTIOCA0–GTIOCB3 | GPTWa waveform I/O | 8-channel high-resolution PWM outputs; HRPWM overlay enables 260 ps edge placement for precise phase alignment in FOC |
| ADTRG0–ADTRG2 | A/D conversion trigger inputs | Synchronize ADC sampling to PWM center-aligned or edge-aligned events for accurate current reconstruction |
| TXD0/RXD0 | SCI0 serial interface | Asynchronous UART for host communication, debug logging, or parameter upload without interrupting real-time control loops |
| CTX0/CRX0 | CAN FD transceiver interface | Differential CAN bus connection supporting 2 Mbps FD frames for distributed motor control networks |
Key Features
| Feature | Design Value |
|---|---|
| High-resolution PWM timing | HRPWM achieves 260 ps minimum edge resolution on GPTW0–GPTW3 outputs, enabling <1 ns timing precision for advanced FOC and space-vector modulation |
| Simultaneous ADC sampling | S12ADH includes three independent sample-and-hold units allowing concurrent acquisition of up to 7 analog signals (e.g., 3-phase currents + DC bus + temperature) |
| Hardware trigonometric acceleration | TFUv2 unit computes sine/cosine and arctangent/hypotenuse in parallel, reducing FOC loop latency by >80% vs. software-only implementation |
| IEC60730 Class B compliance support | Integrated IWDT with window function, oscillation-stop detection, RAM test assist (DOC), CRCA, and MPU eliminate need for external safety monitors |
| Dual-bank flash with background operation | Enables seamless firmware updates during runtime: new code writes to inactive bank while active bank executes; bank swap occurs on reset with zero downtime |
Applications
| Industrial Motor Drives | HVAC Compressor Control |
|---|---|
|
Use Scenario: Real-time field-oriented control (FOC) of 3-phase PMSM/IM motors in variable-frequency drives. IC Role / Device Role / Timing Role: Primary motor control MCU executing FOC algorithm, generating 3-phase complementary PWM, sampling current/voltage via S12ADH, and managing CAN FD network commands. Use Value: HRPWM's 260 ps resolution and TFUv2 hardware acceleration reduce torque ripple and enable >20 kHz switching frequencies with deterministic sub-microsecond loop timing. |
Use Scenario: Closed-loop speed and refrigerant pressure control in inverter-driven HVAC compressors. IC Role / Device Role / Timing Role: System controller handling sensor fusion (temperature, pressure, current), inverter gate driving, and communication with building management systems via CAN FD or RS-485 (SCI). Use Value: Integrated 12-bit DAC provides stable reference voltage for analog comparators monitoring overcurrent/overtemperature faults, while dual-bank flash ensures safe field firmware updates without service interruption. |
| Home Appliance Inverters | Industrial Power Supplies |
|
Use Scenario: High-efficiency BLDC motor control in washing machines, dryers, and dishwashers. IC Role / Device Role / Timing Role: Dedicated motor controller interfacing with hall sensors or encoder feedback, executing sensorless FOC, and managing user interface via SCI/I²C. Use Value: 64 KB SRAM supports complex observer algorithms; 5-V tolerant I/O simplifies connection to legacy appliance control boards and front-panel displays. |
Use Scenario: Digital control of resonant LLC and phase-shifted full-bridge topologies in telecom/server PSUs. IC Role / Device Role / Timing Role: Digital power controller synchronizing PWM outputs to resonant tank zero-crossings, measuring output voltage/current via S12ADH, and implementing adaptive loop compensation. Use Value: MTU3d's phase-counting mode and GPTWa's synchronous start/stop enable precise timing alignment between primary-side switching and secondary-side synchronous rectification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar motor control MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F526TAAFDN#10 | Same RX26T family, identical 64-pin HWQFN package, but with 256 KB code flash and 48 KB SRAM instead of 512 KB/64 KB | Targeted at cost-sensitive motor control where reduced memory footprint suffices (e.g., simpler BLDC fans vs. full FOC drives) | Select when application firmware size ≤256 KB and RAM usage ≤48 KB; retains same peripheral set and pin compatibility |
| R5F523T7ADFP#30 | RX23T family part in 64-pin LQFP; 40 MHz CPU, 256 KB flash, 32 KB SRAM; lacks HRPWM, TFUv2, and CAN FD | Suitable for basic AC induction motor control or low-cost inverter designs without advanced FOC or high-speed networking | Choose for legacy designs requiring LQFP packaging or lower cost, accepting trade-offs in PWM resolution, computational throughput, and communication bandwidth |
Compared with R5F526TAAFDN#10, the R5F526TFADFN#10 delivers double flash/SRAM capacity and HRPWM for higher-fidelity motor control; versus R5F523T7ADFP#30, it enables 3× faster computation, sub-nanosecond PWM timing, and CAN FD networking - critical for next-generation industrial inverters.
Availability
R5F526TFADFN#10 is available at Aetrix Electronics and suitable for industrial motor drives, HVAC compressor control, home appliance inverters, and digital power supplies requiring stable component supply, long-term lifecycle support, and automotive-grade reliability.
Supply support for R5F526TFADFN#10 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 specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.
The RX26T Group, including R5F526TFADFN#10, is engineered specifically for high-performance motor control and power conversion applications - integrating high-resolution PWM, real-time analog signal processing, and functional safety features into a single chip.
FAQ
What is the maximum operating frequency and CoreMark score of the R5F526TFADFN#10?
The R5F526TFADFN#10 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark points under benchmark conditions. This performance stems from its RXv3 CPU core with single-cycle instruction execution, on-chip FPU, and efficient memory subsystem - enabling deterministic real-time response in motor control loops. The R5F526TFADFN#10 sustains this speed with no-wait access to both 512 KB flash and 64 KB SRAM.
Does the R5F526TFADFN#10 support CAN FD, and what standard does it comply with?
Yes, the R5F526TFADFN#10 integrates a CAN FD module compliant with ISO 11898-1:2015, supporting both standard and extended frames at data rates up to 2 Mbps. This allows high-bandwidth communication in distributed motor control systems, such as multi-axis servo networks or HVAC system controllers. The R5F526TFADFN#10's CAN FD peripheral includes message filtering, FIFO buffering, and error confinement - essential for robust industrial networking.
What PWM resolution and channel count does the R5F526TFADFN#10 provide for motor control?
The R5F526TFADFN#10 delivers three-tiered PWM capability: 8-channel 32-bit GPTWa timers, 9-channel 16-bit MTU3d timers, and 4-channel HRPWM with 260 ps minimum edge resolution. This enables precise 3-phase, 5-phase, or single-phase complementary PWM generation with programmable dead time and synchronous start/stop - critical for minimizing switching losses and torque ripple. All PWM resources are accessible on the R5F526TFADFN#10's 64-pin HWQFN package.
How does the R5F526TFADFN#10 support IEC60730 Class B compliance for safety-critical motor control?
The R5F526TFADFN#10 includes dedicated hardware for IEC60730 Class B: an independent watchdog timer (IWDT) with window function, main clock oscillation-stop detection, CRC calculator (CRCA), memory protection unit (MPU), register write protection, and self-test assist functions (e.g., RAM test via DOC). These features allow developers to implement certified safety routines without external components - a key requirement for R5F526TFADFN#10-based industrial drives and compressors.
What analog peripherals are integrated into the R5F526TFADFN#10 for current and voltage sensing?
The R5F526TFADFN#10 integrates a 12-bit S12ADH ADC with three independent sample-and-hold units (supporting up to 7 + 8 channel configuration), six-channel CMPCa analog comparators, and two 12-bit R12DAb DACs. The ADC supports simultaneous sampling triggered by PWM events, while DAC outputs serve as stable references for comparator-based overcurrent detection. This analog subsystem is fully synchronized to the R5F526TFADFN#10's real-time control engine for accurate motor phase current reconstruction.
R5F526TFADFN#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RX26T
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RXv3
- Core Size:
- 32-Bit
- Speed:
- 120MHz
- Connectivity:
- CANbus, I2C, SCI, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 62
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 16K x 8
- RAM Size:
- 64K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 19x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F526TFADFN#10 FAQ
1.How can I place an order for R5F526TFADFN#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F526TFADFN#10 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 R5F526TFADFN#10 reliable?
The price and inventory of R5F526TFADFN#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F526TFADFN#10 is usually 5 days.
3.What payment methods are accepted for R5F526TFADFN#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F526TFADFN#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F526TFADFN#10?
R5F526TFADFN#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F526TFADFN#10 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 R5F526TFADFN#10?
For technical support, including R5F526TFADFN#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F526TFADFN#10 requirements.
6.How does Aetrix verify that R5F526TFADFN#10 is sourced from the original manufacturer or authorized distributors?
All R5F526TFADFN#10 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 R5F526TFADFN#10 meets industry standards.
7.What is the process for return or replacement of R5F526TFADFN#10?
All R5F526TFADFN#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F526TFADFN#10, 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 R5F526TFADFN#10 part is unused and in its original packaging.
Return procedure for R5F526TFADFN#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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