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Renesas R5F526TBDDFM#50
- Part No.:
- R5F526TBDDFM#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F526TBDDFM#50.pdf
- Description:
- 32BIT MCU RX26T 256K LFQFP64 -40
- Quantity:
- Payment:
- Shipping:
Inventory:2,010
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Product details
Overview
R5F526TBDDFM#50 from Renesas is a 32-bit RXv3 microcontroller optimized for motor control and industrial inverter applications, featuring 120 MHz operation, 512 KB on-chip code flash, 64 KB SRAM, 16 KB data flash, integrated CAN FD, and hardware-accelerated 3-phase/5-phase complementary PWM generation with 260 ps HRPWM timing resolution.
For engineers reviewing the R5F526TBDDFM#50 datasheet, R5F526TBDDFM#50 pinout, R5F526TBDDFM#50 application, or R5F526TBDDFM#50 equivalent, this MCU delivers deterministic real-time control for brushless DC and permanent magnet synchronous motor drives, with IEC60730-compliant safety features, dual-bank flash for safe firmware updates, and Trusted Secure IP Lite for AES-128/256 encryption.
Technical Context
The R5F526TBDDFM#50 implements the RXv3 CPU core with single-cycle instruction execution, IEEE 754-compliant single-precision FPU, and collective register bank save for fast context switching-critical for high-frequency motor control loops. Its clock system supports PLL-synthesized 120 MHz ICLK with independent PCLKA (120 MHz), PCLKC (120 MHz for timers/HRPWM), and PCLKD (60 MHz for ADC) domains.
It integrates three dedicated timer subsystems: MTU3d (9-channel 16-bit) for 3-phase inverter gate drive with automatic dead-time insertion; GPTWa (8-channel 32-bit) supporting simultaneous single-/3-/5-phase complementary PWM; and HRPWM (4-channel) enabling sub-nanosecond edge placement synchronized to GPTW outputs-enabling precise voltage vector synthesis in field-oriented control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv3 32-bit, 120 MHz max, 709 CoreMark, single-cycle execution, 16 general-purpose registers |
| Memory | 512 KB code flash (no-wait at 120 MHz), 64 KB SRAM (no-wait), 16 KB data flash (100k write cycles) |
| PWM Capability | 10-channel single-phase, 3-channel 3-phase, 2-channel 5-phase complementary PWM; 4-channel HRPWM @ 260 ps min resolution |
| Analog Peripherals | 12-bit S12ADH ADC (22 total channels across 3 units), 6-channel CMPCa comparator, 2-channel 12-bit R12DAb DAC |
| Communication | CAN FD (ISO 11898-1:2015), 4× SCI, 3× RSCI (with LIN/Manchester), 1× RIIC (400 kbps), 1× RI3C (I3C SDR), 2× RSPI |
| Safety & Security | IEC60730 self-test suite (oscillation stop detection, RAM test assist, CRC-A, register write protection), AES-128/256 (ECB/CBC/GCM), TRNG |
| Package & Temp | PLQP0100KB-B (100-pin LFQFP, 14 × 14 mm, 0.5 mm pitch), –40°C to +85°C operating range (D-version) |
Pinout & Package
Package: PLQP0100KB-B - 100-pin Low-Profile Quad Flat Package (LFQFP), 14 mm × 14 mm body, 0.5 mm lead pitch, exposed thermal pad, RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply / Ground | Core and I/O power domains (2.7–5.5 V); separate analog/digital ground pins for noise isolation in motor control |
| XTAL, EXTAL | Main clock oscillator interface | Connects to 8–24 MHz crystal for PLL reference; supports oscillation-stop detection per IEC60730 |
| MTIOC0A–MTIOC3B | MTU3d waveform output | Dedicated 3-phase inverter gate drive outputs with programmable dead time and fault-triggered forced disable |
| GPTIO0A–GPTIO3B | GPTWa waveform output | High-resolution PWM outputs synchronized to HRPWM for fine-grained voltage vector control |
| ADTRG0–ADTRG3 | A/D conversion trigger input | Hardware-synchronized sampling triggers from MTU/GPTW for precise current/voltage acquisition timing |
| CANFD_TX, CANFD_RX | CAN FD physical layer interface | Differential bus interface compliant with ISO 11898-1:2015, supporting up to 5 Mbps data phase |
| POEG0–POEG3 | Port output enable for GPTW | Fault-input pins that force GPTW output pins into high-impedance state during overcurrent or comparator trip |
Key Features
| Feature | Design Value |
|---|---|
| HRPWM Timing Resolution | 260 ps minimum edge placement resolution at 120 MHz, enabling <1 ns timing accuracy for advanced SVM algorithms |
| Dual-Bank Flash Architecture | Enables background programming and seamless bank swap for zero-downtime firmware updates in field-deployed inverters |
| Event Link Controller (ELC) | 183 internal event signals routed without CPU intervention-e.g., MTU overflow → ADC trigger → DMA transfer → interrupt |
| IEC60730 Safety Support | Integrated hardware blocks for oscillation detection, RAM test assist (DOC), CRCA, and register write protection-reducing software certification effort |
| Trusted Secure IP Lite | AES-128/256 engine with key management isolation and TRNG ensures secure boot and encrypted firmware storage |
Applications
| Industrial Motor Drives | Automotive HVAC Blower Control |
|---|---|
|
Use Scenario: Closed-loop field-oriented control of 3-phase PMSM/BLDC motors in variable-frequency drives and servo amplifiers. IC Role / Device Role / Timing Role: Real-time PWM waveform generator with synchronized ADC sampling, ELC-coordinated peripheral chaining, and safety monitoring. Use Value: Sub-microsecond PWM timing precision enables >98% inverter efficiency and low acoustic noise via optimized space-vector modulation. |
Use Scenario: Compact, cost-optimized blower motor controller for automotive cabin climate systems requiring CAN FD diagnostics and thermal protection. IC Role / Device Role / Timing Role: Integrated motor controller with CAN FD interface, on-chip temperature sensor, and IEC60730-compliant self-test for ASIL-B readiness. Use Value: Eliminates external CAN transceiver and discrete protection circuitry while meeting OEM functional safety requirements out-of-the-box. |
| Home Appliance Inverters | Industrial PLC I/O Modules |
|
Use Scenario: High-efficiency inverter control for washing machine drum motors and refrigerator compressors with variable speed and torque optimization. IC Role / Device Role / Timing Role: Sensorless FOC processor with 12-bit ADC, comparator-based rotor position estimation, and dual-bank flash for OTA updates. Use Value: Reduces BOM count by integrating analog front-end, PWM generators, and communication interfaces-cutting PCB area by ≥30% vs. multi-chip solutions. |
Use Scenario: Distributed I/O module in industrial automation systems requiring deterministic response to fieldbus commands and local analog/digital signal conditioning. IC Role / Device Role / Timing Role: Real-time controller with multiple SCI/RSCI ports for Modbus RTU/ASCII, RS485 isolation support, and precise timestamping via GPTW. Use Value: Enables <100 µs cycle times for distributed control loops using ELC-triggered ADC capture and DMA-driven protocol stack processing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar motor control microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F526TADDFM#50 | Same RX26T family, 256 KB code flash, 48 KB SRAM, 48-pin HWQFN package (7 × 7 mm) | Targeted for space-constrained, lower-power BLDC fans and small appliances-not suitable for full 3-phase inverter designs | Select when BOM cost and footprint are prioritized over flash headroom and high-channel-count analog integration |
| R5F566TEADFM#50 | RX66T family successor: 160 MHz CPU, 1 MB flash, enhanced HRPWM (130 ps), dual CAN FD, Ethernet MAC | Designed for next-gen industrial drives requiring higher computational throughput, TSN-capable networking, and SIL-3 functional safety | Choose for new designs demanding future-proof scalability, higher PWM resolution, or Ethernet-based control architecture |
Compared with R5F526TBDDFM#50, the R5F526TADDFM#50 reduces memory and I/O count for compact applications, while the R5F566TEADFM#50 extends performance, safety, and connectivity-making the R5F526TBDDFM#50 the optimal balance of proven motor control capability, IEC60730 compliance, and production maturity for mainstream inverter platforms.
Availability
R5F526TBDDFM#50 is available at Aetrix Electronics and suitable for industrial motor drives, automotive HVAC systems, home appliance inverters, and PLC I/O modules requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R5F526TBDDFM#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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications-with annual revenue exceeding $10 billion and operations in over 20 countries.
The RX26T Group, including R5F526TBDDFM#50, was designed specifically for high-performance, safety-certifiable motor control in industrial inverters and automotive subsystems-integrating precision PWM, real-time analog sensing, and functional safety accelerators on a single die.
FAQ
What is the maximum operating frequency and CPU architecture of the R5F526TBDDFM#50?
The R5F526TBDDFM#50 operates at a maximum frequency of 120 MHz using the 32-bit RXv3 CPU core. It achieves 709 CoreMark performance and supports single-cycle instruction execution, IEEE 754-compliant single-precision floating-point arithmetic, and collective register bank save for rapid context switching-essential for deterministic motor control loops. The R5F526TBDDFM#50 also includes an on-chip memory protection unit (MPU) and Trusted Memory (TM) functionality for secure code execution.
Does the R5F526TBDDFM#50 support IEC60730 Class B compliance out of the box?
Yes, the R5F526TBDDFM#50 includes hardware-accelerated IEC60730 Class B safety features: main clock oscillation-stop detection, RAM test assist via DOC, CRC calculator (CRCA), register write protection, analog input disconnection detection, and independent watchdog timer (IWDT) with window function. These capabilities reduce software certification effort and enable certified implementations for motor control in household and industrial appliances. The R5F526TBDDFM#50 datasheet provides detailed self-test procedures aligned with Annex H of IEC60730-1.
What PWM configurations does the R5F526TBDDFM#50 support for 3-phase inverter control?
The R5F526TBDDFM#50 supports three complementary PWM modes essential for 3-phase inverter gate driving: 3-channel 3-phase complementary PWM (via MTU3d), 10-channel single-phase complementary PWM (via GPTWa), and 2-channel 5-phase complementary PWM (via GPTWa). It also features 4-channel HRPWM with 260 ps minimum timing resolution, synchronized to GPTW outputs, enabling precise dead-time insertion and voltage vector synthesis. The R5F526TBDDFM#50 integrates POE3D and POEG modules to force high-impedance states during fault conditions-critical for safe inverter shutdown.
How much on-chip memory does the R5F526TBDDFM#50 include, and what are its access characteristics?
The R5F526TBDDFM#50 includes 512 KB of on-chip code flash memory with no-wait-state access at 120 MHz, 64 KB of SRAM with no-wait-state access, and 16 KB of reprogrammable data flash rated for 100,000 write/erase cycles. Its dual-bank flash architecture allows background programming and startup bank swapping-enabling safe firmware updates without halting real-time control. The R5F526TBDDFM#50 also supports Trusted Memory (TM) protection to prevent unauthorized readout of critical firmware sections.
Which communication interfaces are integrated into the R5F526TBDDFM#50, and are they suitable for automotive diagnostics?
The R5F526TBDDFM#50 integrates CAN FD (ISO 11898-1:2015 compliant), four SCI channels, three RSCI channels (supporting LIN and Manchester encoding), one I2C interface (400 kbps), one I3C interface (SDR mode), and two RSPI controllers. Its CAN FD interface supports data rates up to 5 Mbps and is fully suitable for automotive diagnostic protocols such as UDS and DoIP. The R5F526TBDDFM#50's RSCI modules also support LIN 2.2 frame formats-making it appropriate for HVAC blower and seat control modules requiring both high-speed diagnostics and low-cost local networking.
R5F526TBDDFM#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:
- 256KB (256K 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:
R5F526TBDDFM#50 FAQ
1.How can I place an order for R5F526TBDDFM#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F526TBDDFM#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 R5F526TBDDFM#50 reliable?
The price and inventory of R5F526TBDDFM#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F526TBDDFM#50 is usually 5 days.
3.What payment methods are accepted for R5F526TBDDFM#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F526TBDDFM#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F526TBDDFM#50?
R5F526TBDDFM#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F526TBDDFM#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 R5F526TBDDFM#50?
For technical support, including R5F526TBDDFM#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F526TBDDFM#50 requirements.
6.How does Aetrix verify that R5F526TBDDFM#50 is sourced from the original manufacturer or authorized distributors?
All R5F526TBDDFM#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 R5F526TBDDFM#50 meets industry standards.
7.What is the process for return or replacement of R5F526TBDDFM#50?
All R5F526TBDDFM#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F526TBDDFM#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 R5F526TBDDFM#50 part is unused and in its original packaging.
Return procedure for R5F526TBDDFM#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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