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Renesas R5F526TFADFM#50
- Part No.:
- R5F526TFADFM#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F526TFADFM#50.pdf
- Description:
- 32BIT MCU RX26T 512/64K 64LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,185
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Product details
Overview
R5F526TFADFM#50 from Renesas is a 32-bit RXv3 microcontroller targeting motor control and industrial inverter applications, operating at up to 120 MHz with 709 CoreMark performance, 512 KB on-chip flash, 64 KB SRAM, and integrated 3-phase complementary PWM (10-channel), CAN FD interface, and hardware encryption (AES-128/256). It supports IEC60730 safety compliance and operates across –40°C to +85°C.
For engineers reviewing the R5F526TFADFM#50 datasheet, R5F526TFADFM#50 pinout, R5F526TFADFM#50 application, or R5F526TFADFM#50 equivalent, key selection criteria include its 120-MHz GPTWa timer with 260-ps HRPWM resolution, dual-bank flash for safe firmware updates, 6-channel analog comparator, and 12-bit A/D converter with simultaneous sampling across three units - all critical for real-time motor phase current sensing and closed-loop control.
Technical Context
The R5F526TFADFM#50 implements the RXv3 CPU core with single-cycle instruction execution, IEEE 754-compliant FPU, and memory protection unit (MPU) for deterministic real-time operation. Its clock system integrates PLL, 240-kHz LOCO, and 120-kHz IWDT-dedicated oscillator, enabling independent timing domains: ICLK (up to 120 MHz), PCLKA (120 MHz for MTU/GPTW/HRPWM), PCLKB (60 MHz), PCLKC (120 MHz for counter references), and PCLKD (60 MHz for ADC).
Peripheral coordination is managed via Event Link Controller (ELC), supporting 183 internal event signals to trigger timer starts/stops, ADC conversions, or port output changes without CPU intervention - essential for low-latency motor commutation sequences and fault response in inverter gate drive systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv3 32-bit, 120 MHz max, 709 CoreMark - enables high-speed field-oriented control (FOC) loop execution within sub-µs deadlines. |
| Memory | 512 KB code flash (dual-bank, BGO-capable), 64 KB SRAM, 16 KB data flash (100k write cycles) - supports over-the-air updates and runtime parameter storage without halting execution. |
| PWM Capability | GPTWa: 32-bit × 8 channels; HRPWM: 4 channels with 260-ps resolution at 120 MHz - delivers precise dead-time control and phase-shift accuracy for SiC/GaN inverter gate drivers. |
| Analog Peripherals | S12ADH: 3× 12-bit A/D units (4+4+14 channels), CMPCa: 6-channel comparator, R12DAb: 2× 12-bit DAC - enables simultaneous current/voltage sensing and reference generation for analog feedback paths. |
| Communication | CAN FD (ISO 11898-1:2015), RIICa (400 kbps I²C), RI3C (I3C SDR), RSPId (30 Mbps SPI), 4× SCI - provides robust diagnostics, sensor fusion, and host MCU coordination in distributed motor drives. |
| Safety & Security | IEC60730 self-test functions (oscillation stop detection, RAM test, CRC calculator CRCA), Trusted Secure IP Lite (AES-128/256, TRNG), MPU, register write protection - meets Class B functional safety requirements. |
Pinout & Package
Package: PLQP0100KB-B, 100-pin LQFP, 14 × 14 mm, 0.5 mm pitch, –40°C to +85°C operating range.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply / Ground | Single 2.7–5.5 V supply; 100-pin layout separates analog/digital power domains to minimize noise coupling into ADC paths. |
| MTIOC0A–MTIOC3B | MTU3d PWM output | Dedicated 3-phase complementary PWM outputs with automatic dead-time insertion - directly drives external gate drivers for 3-phase inverter bridges. |
| GTIOCA0–GTIOCB3 | GPTWa waveform I/O | High-resolution PWM outputs with HRPWM linkage - used for auxiliary timing, encoder emulation, or resonant LLC control in hybrid topologies. |
| ADTRG0–ADTRG2 | ADC conversion trigger | Hardware-synchronized start inputs tied to MTU/GPTW events - ensures deterministic sampling aligned with PWM center-aligned switching points. |
| TXD0/RXD0 | SCI0 serial interface | Asynchronous UART channel for debug console or host communication; supports LIN protocol via SCIh modules (RSCI9/RSCI11). |
| CTX0/CRX0 | CAN FD transceiver interface | Differential CAN FD physical layer pins compliant with ISO 11898-1:2015 - enables high-bandwidth motor status reporting and firmware updates over vehicle networks. |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | 183 internal event sources linked without CPU overhead - reduces interrupt latency for time-critical actions like overcurrent shutdown or synchronous ADC sampling. |
| High-Resolution PWM (HRPWM) | 260-ps timing resolution on GPTW0–GPTW3 outputs - enables fine-grained dead-time adjustment to prevent shoot-through in high-frequency SiC inverters. |
| Dual-Bank Flash Memory | Independent read/write banks allow background programming during active execution - eliminates firmware update downtime in continuous-operation industrial drives. |
| Simultaneous Sampling A/D | Three independent 12-bit S12ADH units (4+4+14 channels) - captures motor phase currents and DC-link voltage concurrently for accurate FOC vector calculation. |
| Trusted Secure IP Lite | AES-128/256 encryption engine with TRNG and key isolation - secures firmware images and communication payloads against cloning or tampering in connected motor systems. |
Applications
| Industrial Motor Drives | Home Appliance Inverters |
|---|---|
|
Use Scenario: Closed-loop vector control of 3-phase PMSM/BLDC motors in HVAC compressors and washing machine drum drives. IC Role / Device Role / Timing Role: Real-time FOC computation engine with synchronized 12-bit ADC sampling, 3-phase PWM generation, and CAN FD diagnostics reporting. Use Value: Achieves <1 µs current-loop latency using ELC-triggered ADC and GPTWa PWM, enabling >20 kHz switching frequencies with stable torque ripple suppression. |
Use Scenario: Variable-speed inverter control for refrigerator compressors and fan motors with energy efficiency certification (e.g., ENERGY STAR). IC Role / Device Role / Timing Role: Integrated motor controller managing sensorless rotor position estimation, thermal monitoring, and user-interface communication via I²C. Use Value: On-chip temperature sensor (±1.0°C) and 12-bit DAC reference reduce BOM count while meeting IEC60730 Class B self-test requirements for safety-critical home appliances. |
| Automotive Auxiliary Systems | Industrial PLC Motion Control |
|
Use Scenario: Electric power steering (EPS) assist motor control with functional safety compliance (ASIL-B ready). IC Role / Device Role / Timing Role: Safety-certified MCU executing torque calculation, fault detection (via CMPCa comparators), and CAN FD communication with vehicle network. Use Value: MPU-enforced memory partitioning and CRC-accelerated data integrity checks ensure separation between safety-critical and non-safety software partitions. |
Use Scenario: Multi-axis servo drive coordination in CNC machines and packaging equipment using EtherCAT or CANopen. IC Role / Device Role / Timing Role: Deterministic motion controller with synchronized PWM outputs, encoder interface (via MTU3d quadrature input), and real-time Ethernet offload support. Use Value: 120-MHz GPTWa timers with phase-counting mode and ELC-linked event chaining enable sub-microsecond jitter in position loop updates across multiple axes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar motor control MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F526TAAFDL#50 | Same RX26T group, 64-pin HWQFN (7 × 7 mm), 256 KB flash, 48 KB SRAM, 48 I/O pins - smaller footprint, reduced peripheral count. | Limited to single-phase or low-power 3-phase drives; lacks second A/D unit and 4-channel HRPWM. | Select when board space is constrained and full 100-pin PWM/A/D capability is unnecessary. |
| R5F566TEADFP#30 | RX66T group, 100-pin LQFP, 160 MHz CPU, 1 MB flash, 256 KB SRAM, enhanced GPTW (16-bit × 16 ch), no HRPWM. | Higher compute throughput for AI-based predictive maintenance; lacks 260-ps PWM resolution but adds Ethernet MAC and USB. | Choose for next-generation drives requiring edge analytics or multi-protocol connectivity beyond CAN FD. |
Compared with R5F526TFADFM#50, R5F526TAAFDL#50 trades package size and memory for cost-sensitive compact inverters, while R5F566TEADFP#30 upgrades processing headroom and communication breadth at the expense of ultra-fine PWM timing - making R5F526TFADFM#50 optimal for cost-performance balanced, safety-certified motor control where 260-ps dead-time tuning is decisive.
Availability
R5F526TFADFM#50 is available at Aetrix Electronics and suitable for industrial motor drives, home appliance inverters, automotive auxiliary systems, and PLC motion control requiring stable component supply and long-term production continuity.
Supply support for R5F526TFADFM#50 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, and power solutions for automotive, industrial, and IoT markets.
The RX26T Group, including R5F526TFADFM#50, was designed specifically for high-efficiency, safety-compliant motor control in inverters - integrating precision PWM, real-time analog sensing, and functional safety features into a single chip.
FAQ
What is the maximum operating frequency and CoreMark score of the R5F526TFADFM#50?
The R5F526TFADFM#50 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark performance. This benchmark reflects its real-time computational capability for demanding motor control algorithms such as field-oriented control (FOC) and sensorless position estimation. The RXv3 CPU core's single-cycle instruction execution and integrated FPU further enhance deterministic loop timing in the R5F526TFADFM#50.
Does the R5F526TFADFM#50 support IEC60730 Class B compliance?
Yes, the R5F526TFADFM#50 includes dedicated hardware features for IEC60730 Class B compliance: oscillation-stoppage detection, RAM test-assisting function via DOC, CRC calculator (CRCA), independent watchdog timer (IWDTa), and register write protection. These are documented in the R01DS0407EJ0120 datasheet and enable certified self-diagnostic routines required for household appliance and industrial safety standards.
What PWM resolution does the R5F526TFADFM#50 provide, and how is it implemented?
The R5F526TFADFM#50 delivers 260-ps minimum timing resolution via its High-Resolution PWM (HRPWM) circuit, which enhances the 32-bit GPTWa timers (GPTW0–GPTW3). This resolution is achieved at 120 MHz system clock and enables precise dead-time control critical for SiC/GaN-based inverter designs. The HRPWM functionality is exclusive to R5F526TFADFM#50 within the RX26T family and is not available on lower-pin-count variants.
How many A/D converter channels does the R5F526TFADFM#50 support, and what is their configuration?
The R5F526TFADFM#50 supports 22 total 12-bit A/D converter channels across three independent S12ADH units: Unit 0 (4 channels), Unit 1 (4 channels), and Unit 2 (14 channels). Units 0 and 1 each include three sample-and-hold circuits for simultaneous sampling - essential for capturing three-phase motor currents without phase skew. This configuration is confirmed for the 64 KB RAM variant, which R5F526TFADFM#50 implements.
What package type and pin count does the R5F526TFADFM#50 use?
The R5F526TFADFM#50 uses the PLQP0100KB-B package: a 100-pin LQFP measuring 14 × 14 mm with 0.5 mm pitch. This package supports the full peripheral set of the RX26T Group, including all 83 general-purpose I/O pins, dual CAN FD interfaces, and complete analog subsystem routing. It is rated for operation from –40°C to +85°C (D-version).
R5F526TFADFM#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RX26T
- Packaging:
- Tape & Reel (TR)
- 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:
- 49
- 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 15x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F526TFADFM#50 FAQ
1.How can I place an order for R5F526TFADFM#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F526TFADFM#50 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 R5F526TFADFM#50 reliable?
The price and inventory of R5F526TFADFM#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F526TFADFM#50 is usually 5 days.
3.What payment methods are accepted for R5F526TFADFM#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F526TFADFM#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F526TFADFM#50?
R5F526TFADFM#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F526TFADFM#50 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 R5F526TFADFM#50?
For technical support, including R5F526TFADFM#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F526TFADFM#50 requirements.
6.How does Aetrix verify that R5F526TFADFM#50 is sourced from the original manufacturer or authorized distributors?
All R5F526TFADFM#50 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 R5F526TFADFM#50 meets industry standards.
7.What is the process for return or replacement of R5F526TFADFM#50?
All R5F526TFADFM#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F526TFADFM#50, 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 R5F526TFADFM#50 part is unused and in its original packaging.
Return procedure for R5F526TFADFM#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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