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Renesas R5F526TFDDFN#50
- Part No.:
- R5F526TFDDFN#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F526TFDDFN#50.pdf
- Description:
- 32BIT MCU RX26T 512/64K 80LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,356
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Product details
Overview
R5F526TFDDFN#50 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 R5F526TFDDFN#50 datasheet, R5F526TFDDFN#50 pinout, R5F526TFDDFN#50 application, or R5F526TFDDFN#50 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, RAM test assist), and 5-V tolerant I/O for robust interfacing in noisy motor environments.
Technical Context
The R5F526TFDDFN#50 implements the RXv3 CPU core with single-cycle instruction execution, IEEE 754-compliant FPU, and collective register bank save for fast context switching in motor control loops. Its clock system integrates PLL, HOCO (16/18/20 MHz), LOCO (240 kHz), and IWDT-dedicated 120 kHz oscillator - enabling precise timing separation between control logic (ICLK @ 120 MHz), PWM reference clocks (PCLKC @ 120 MHz), and analog subsystems (ADCLK @ 60 MHz).
Peripheral integration centers on deterministic real-time control: GPTWa (8-channel 32-bit timer) and MTU3d (9-channel 16-bit timer) operate synchronously with PCLKC for sub-nanosecond PWM edge placement; HRPWM extends GPTW0–GPTW3 output resolution to 260 ps; ELC enables hardware-triggered event chaining (e.g., MTU capture → A/D start → DTC transfer) without CPU intervention during sleep modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv3 32-bit, 120 MHz max - delivers 709 CoreMark; supports single-cycle instructions and 16 register banks for fast ISR context save/restore in motor control loops. |
| Memory | 512 KB code flash (dual-bank, no-wait @ 120 MHz), 64 KB SRAM (no-wait), 16 KB data flash (100k write cycles) - enables background programming and safe firmware updates without halting execution. |
| PWM Capability | GPTWa: 8 channels × 32-bit, supporting 10-channel single-phase, 3-channel 3-phase, or 2-channel 5-phase complementary PWM; HRPWM adds 260 ps minimum edge resolution - critical for precise dead-time control in SiC/GaN inverters. |
| Analog Subsystem | 12-bit S12ADH ADC with 3 sample-and-hold units (4+4+14 channels), 0.9 µs min conversion time @ 60 MHz ADCLK; 6-channel CMPCa comparator; 2-channel 12-bit R12DAb DAC - supports simultaneous current/voltage sensing and closed-loop feedback. |
| Communication | CAN FD (ISO 11898-1:2015, 1 channel), RIICa (I²C/SMBus @ 400 kbps), RI3C (I3C SDR), RSPId (SPI @ 30 Mbps), 4× SCI/SCIh, 3× RSCI with Manchester/HBS - meets industrial fieldbus and sensor interface requirements. |
| Safety & Security | IEC60730 compliance features: independent watchdog (IWDTa), oscillation-stop detection, CRCA (8/32-bit CRC), DOC-assisted RAM test, register write protection, Trusted Memory (TM) - enables Class B certification for motor drive applications. |
Pinout & Package
R5F526TFDDFN#50 is housed in a 64-pin HWQFN package (PWQN0064KF-A), measuring 9 mm × 9 mm with 0.5 mm pitch, exposing 49 general-purpose I/O pins (2× 5-V tolerant, 14× large-current drive), plus dedicated pins for GPTW/MTU waveform outputs, CAN FD transceiver, and analog inputs/outputs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Supports single 2.7–5.5 V operation; decoupling required per Renesas layout guidelines to maintain 120 MHz stability and analog noise immunity. |
| XTAL/EXTAL | Main clock oscillator terminals | Accepts 8–24 MHz crystal; feeds PLL for 120 MHz system clock - essential for synchronous PWM and ADC sampling timing accuracy. |
| MTIOC0A–MTIOC5B | MTU3d input/output waveform pins | Drive 3-phase inverter gate drivers; support complementary PWM with programmable dead time and phase counting for rotor position tracking. |
| GTIOCA0–GTIOCB3 | GPTWa waveform output pins | Deliver high-resolution PWM (260 ps) to power stage; POEG logic disables outputs on short-circuit or comparator fault for fail-safe shutdown. |
| AD00–AD13 | Analog input channels | Connect to current shunts, DC-link voltage dividers, and temperature sensors; routed to S12ADH units with sample-and-hold for simultaneous multi-channel acquisition. |
| DA00, DA01 | D/A converter outputs | Provide programmable reference voltages for CMPCa comparators - used in overcurrent trip thresholds and adaptive control references. |
| CANH/CANL | CAN FD differential bus interface | Direct connection to ISO 11898-1 transceiver; supports data rates up to 5 Mbps in FD mode for real-time motor status reporting and diagnostics. |
Key Features
| Feature | Design Value |
|---|---|
| High-Resolution PWM (HRPWM) | Extends GPTW0–GPTW3 output timing resolution to 260 ps at 120 MHz - enables precise dead-time adjustment for SiC MOSFETs and reduced switching losses in high-frequency inverters. |
| Event Link Controller (ELC) | Hardware interconnects 183 internal events (e.g., MTU capture → A/D trigger → DTC transfer) - eliminates CPU overhead and jitter in time-critical motor control sequences. |
| Dual-Bank Flash Architecture | Allows background programming of one bank while executing from the other - ensures zero-interrupt firmware updates and seamless failover in safety-critical drives. |
| IEC60730 Safety Suite | Includes IWDTa with window function, oscillation-stop detection, CRCA, DOC-assisted RAM test, and register write protection - reduces external safety component count for Class B certification. |
| Trusted Secure IP Lite | Integrated AES-128/256 (ECB/CBC/GCM), true random number generator, and key management - secures firmware updates and protects proprietary motor control algorithms. |
Applications
| Industrial Motor Drives | HVAC Compressor Control |
|---|---|
|
Use Scenario: Closed-loop vector control of 3-phase PMSM/IM motors in variable-frequency drives (VFDs) with <1 µs current loop update. IC Role / Device Role / Timing Role: Real-time PWM generation, simultaneous ADC sampling of phase currents and DC-link voltage, and CAN FD-based command/status exchange with PLC. Use Value: GPTWa + HRPWM delivers 260 ps edge placement for accurate dead-time compensation; dual-bank flash enables field-upgradable control algorithms without downtime. |
Use Scenario: High-efficiency inverter-driven scroll compressors in commercial air conditioning systems requiring rapid load response and soft-start. IC Role / Device Role / Timing Role: Coordination of 3-phase PWM, temperature-compensated PID control, and refrigerant pressure monitoring via analog inputs and I²C sensors. Use Value: Integrated 12-bit ADC with 3 sample-and-hold units enables simultaneous current/voltage/temperature acquisition; ELC links MTU capture to ADC triggers for jitter-free sampling alignment. |
| Home Appliance Inverters | Renewable Energy Converters |
|
Use Scenario: Washing machine drum motor control with sensorless FOC, vibration suppression, and acoustic noise reduction. IC Role / Device Role / Timing Role: Execution of trigonometric functions (TFUv2) for FOC math, high-resolution PWM for low-noise commutation, and CAN FD for UI communication. Use Value: On-chip TFUv2 accelerates sine/cosine/arctangent calculations; 5-V tolerant I/O interfaces directly with legacy appliance control boards without level shifters. |
Use Scenario: Grid-tied solar microinverters requiring UL 1741 SA compliance, anti-islanding detection, and reactive power control. IC Role / Device Role / Timing Role: Real-time grid synchronization (PLL), isolated current sensing, and high-speed PWM for MPPT and inverter switching. Use Value: IEC60730 safety features (IWDT, CRC, RAM test) satisfy functional safety requirements; CAN FD supports remote firmware updates and grid operator telemetry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar motor control MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F526TADDFN#50 | Same RX26T family, identical 64-pin HWQFN package and pinout, but with 256 KB code flash and 48 KB SRAM instead of 512 KB/64 KB. | Targeted at cost-sensitive, lower-complexity motor control where full 512 KB flash and 64 KB SRAM are unnecessary - e.g., single-motor fans or pumps. | Select R5F526TADDFN#50 when firmware size and real-time buffer requirements are lower; retains identical peripheral set and safety features. |
| R5F523T7DDFN#50 | RX23T family part in same 64-pin HWQFN; operates at 40 MHz (vs. 120 MHz), has 256 KB flash, 32 KB SRAM, no HRPWM, and only 1× CAN FD channel. | Suitable for basic BLDC control or low-end inverters where 120 MHz processing, 260 ps PWM resolution, and advanced safety features are not required. | Choose R5F523T7DDFN#50 for legacy design migration or applications with relaxed performance/safety needs - not pin-compatible due to different peripheral register mapping. |
Compared with R5F526TADDFN#50, the R5F526TFDDFN#50 provides double flash/SRAM capacity and full HRPWM capability for next-gen SiC designs; versus R5F523T7DDFN#50, it delivers 3× CPU speed, deterministic sub-nanosecond PWM, and certified IEC60730 features - making it the only choice for high-fidelity, safety-certified motor control.
Availability
R5F526TFDDFN#50 is available at Aetrix Electronics and suitable for industrial motor drives, HVAC compressor control, home appliance inverters, and renewable energy converters requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for R5F526TFDDFN#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 is a global semiconductor leader specializing in microcontrollers, analog, and power management solutions for automotive, industrial, and IoT markets.
The RX26T Group - including the R5F526TFDDFN#50 - was designed specifically for high-performance, safety-compliant motor control in industrial drives and inverter-based appliances, integrating precision PWM, real-time analog acquisition, and IEC60730-certifiable safety features.
FAQ
What is the maximum operating frequency and CPU architecture of the R5F526TFDDFN#50?
The R5F526TFDDFN#50 features a 32-bit RXv3 CPU core with a maximum operating frequency of 120 MHz, achieving 709 CoreMark performance. It supports single-cycle instruction execution, IEEE 754-compliant floating-point operations, and collective register bank save for deterministic interrupt latency - all critical for real-time motor control loops. The R5F526TFDDFN#50 uses this architecture to execute complex FOC algorithms with minimal jitter.
Does the R5F526TFDDFN#50 support CAN FD, and what standard does it comply with?
Yes, the R5F526TFDDFN#50 integrates a CAN FD module compliant with ISO 11898-1:2015, supporting both standard and extended frames at data rates up to 5 Mbps. This enables high-bandwidth communication for motor status reporting, diagnostics, and firmware updates in industrial networks. The R5F526TFDDFN#50's CAN FD interface is fully hardware-accelerated and supports error handling and filtering without CPU intervention.
What PWM resolution and capabilities does the R5F526TFDDFN#50 offer for motor control?
The R5F526TFDDFN#50 provides two-tiered PWM capability: GPTWa (32-bit, 8-channel) supports 10-channel single-phase, 3-channel 3-phase, or 2-channel 5-phase complementary PWM; HRPWM extends GPTW0–GPTW3 timing resolution to 260 ps at 120 MHz. This allows precise dead-time control for SiC/GaN power stages. The R5F526TFDDFN#50 uses these features to minimize switching losses and electromagnetic interference in high-frequency inverters.
How does the R5F526TFDDFN#50 support IEC60730 functional safety compliance?
The R5F526TFDDFN#50 includes dedicated hardware for IEC60730 Class B compliance: independent watchdog timer (IWDTa) with window function, main clock oscillation-stop detection, CRCA for memory/data integrity, DOC-assisted RAM test, register write protection, and self-diagnostic A/D and comparator functions. These features reduce external component count and simplify certification. The R5F526TFDDFN#50 leverages them to meet safety requirements without software-only workarounds.
What package type and pin count does the R5F526TFDDFN#50 use?
The R5F526TFDDFN#50 is packaged in a 64-pin HWQFN (PWQN0064KF-A), measuring 9 mm × 9 mm with 0.5 mm pitch. It exposes 49 general-purpose I/O pins (including 2× 5-V tolerant and 14× large-current drive), plus dedicated pins for GPTW/MTU waveform outputs, CAN FD transceiver, analog inputs/outputs, and debug interfaces. This package balances compactness with signal integrity for motor control PCB layouts. The R5F526TFDDFN#50's pinout is shared with other RX26T 64-pin variants like R5F526TADDFN#50.
R5F526TFDDFN#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-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:
- 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:
R5F526TFDDFN#50 FAQ
1.How can I place an order for R5F526TFDDFN#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F526TFDDFN#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 R5F526TFDDFN#50 reliable?
The price and inventory of R5F526TFDDFN#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F526TFDDFN#50 is usually 5 days.
3.What payment methods are accepted for R5F526TFDDFN#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F526TFDDFN#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F526TFDDFN#50?
R5F526TFDDFN#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F526TFDDFN#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 R5F526TFDDFN#50?
For technical support, including R5F526TFDDFN#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F526TFDDFN#50 requirements.
6.How does Aetrix verify that R5F526TFDDFN#50 is sourced from the original manufacturer or authorized distributors?
All R5F526TFDDFN#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 R5F526TFDDFN#50 meets industry standards.
7.What is the process for return or replacement of R5F526TFDDFN#50?
All R5F526TFDDFN#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F526TFDDFN#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 R5F526TFDDFN#50 part is unused and in its original packaging.
Return procedure for R5F526TFDDFN#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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