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Renesas R5F526TBBDFN#10
- Part No.:
- R5F526TBBDFN#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F526TBBDFN#10.pdf
- Description:
- 32BIT MCU RX26T 256K LFQFP80 -40
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
R5F526TBBDFN#10 from Renesas is a 32-bit RXv3 microcontroller optimized for motor control and industrial inverter applications, operating at up to 120 MHz with 709 CoreMark performance, integrated 512 KB code flash, 64 KB SRAM, 16 KB data flash, CAN FD interface, and hardware-accelerated 3-phase/5-phase complementary PWM generation.
For engineers reviewing the R5F526TBBDFN#10 datasheet, R5F526TBBDFN#10 pinout, R5F526TBBDFN#10 application, or R5F526TBBDFN#10 equivalent, key selection criteria include its 120 MHz GPTWa timer with 260 ps HRPWM resolution, dual-bank flash for safe firmware updates, IEC60730-compliant safety features (IWDT, oscillation-stop detection, CRC, RAM test assist), and 100-pin LFQFP package with 82 general-purpose I/O pins including 5-V tolerant inputs.
Technical Context
The R5F526TBBDFN#10 implements the RXv3 CPU core with single-cycle instruction execution, 32×32→64-bit multiplier, IEEE 754-compliant FPU, and collective register bank save for fast context switching. Its clock system supports 8–24 MHz external crystal input to PLL, internal 240 kHz LOCO and selectable 16/18/20 MHz HOCO, and independent 120 kHz IWDT oscillator.
Peripheral integration centers on motor control: MTU3d provides 9-channel 16-bit timers with dead-time compensation and 3-phase PWM output; GPTWa delivers 8-channel 32-bit PWM with synchronous start/stop and ELC-triggered A/D conversion; HRPWM achieves 260 ps timing resolution on GPTW0–GPTW3 outputs. The S12ADH ADC includes three sample-and-hold units supporting simultaneous sampling across up to 22 channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv3 32-bit, 120 MHz max, 709 CoreMark, single-cycle execution, 16×32-bit GPRs + 2×72-bit accumulators |
| Memory | 512 KB code flash (dual-bank, BGO programming), 64 KB SRAM (no-wait), 16 KB data flash (100k write cycles) |
| PWM Capability | 8-channel 32-bit GPTWa + 9-channel 16-bit MTU3d + 4-channel HRPWM (260 ps min resolution at 120 MHz) |
| Analog Peripherals | Three 12-bit S12ADH ADC units (4+4+14 ch), 6-channel CMPCa comparator, 2-channel 12-bit R12DAb DAC |
| Communication | CAN FD (ISO11898-1:2015), 4× SCI, 3× RSCI (with Manchester/HBS), 1× RIIC (400 kbps), 1× RI3C, 2× RSPI |
| Safety & Security | IEC60730 support (IWDT, oscillation-stop detection, self-diagnostic ADC, CRCA, DOC-assisted RAM test, MPU, TM) |
| Package & I/O | 100-pin LFQFP (PLQP0100KB-B, 14×14 mm, 0.5 mm pitch), 82 GPIO, 2×5-V tolerant, 15 high-drive outputs |
Pinout & Package
Package: PLQP0100KB-B - 100-pin Low-profile Quad Flat Package, 14 mm × 14 mm body, 0.5 mm lead pitch, exposed thermal pad.
| 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 grounds required for noise-sensitive ADC operation |
| XTAL/EXTAL | Main clock oscillator interface | Connects to 8–24 MHz external crystal; enables PLL reference for 120 MHz system clock |
| RESET | Active-low reset input | Hardware reset assertion; combined with internal POR/LVD for robust power sequencing |
| MTIOC0A–MTIOC3B | MTU3d PWM output pins | Dedicated complementary PWM outputs for 3-phase inverter gate drive with programmable dead time |
| GTIOCA0–GTIOCB3 | GPTWa waveform I/O pins | High-resolution PWM outputs supporting single-/3-/5-phase modes; HRPWM fine-tuning enabled on GPTW0–GPTW3 |
| ADTRG0–ADTRG2 | A/D conversion trigger inputs | Accepts edge-triggered signals from MTU/GPTW for synchronized sampling of motor current/voltage |
| TXD0/RXD0 | SCI0 serial interface | Asynchronous UART for debug communication or host MCU coordination; supports LIN protocol via RSCI |
| CAN_TX/CAN_RX | CAN FD physical layer interface | Differential bus transceiver pins compliant with ISO11898-1:2015; supports data rates up to 5 Mbps |
Key Features
| Feature | Design Value |
|---|---|
| HRPWM Timing Resolution | 260 ps minimum step size on GPTW0–GPTW3 outputs enables precise dead-time control and reduced torque ripple in PMSM/Foc systems |
| Dual-Bank Flash Architecture | Enables background programming while executing from alternate bank-critical for seamless field firmware updates without runtime interruption |
| Event Link Controller (ELC) | 183 internal event signals routed without CPU intervention; allows MTU-triggered ADC sampling or comparator fault shutdown in <1 µs latency |
| IEC60730 Safety Hardware | Integrated IWDT with window function, oscillation-stop detection, CRC calculator (CRCA), and DOC-assisted RAM test reduce external safety component count |
| Simultaneous Sampling ADC | Three independent S12ADH units (Unit 0/1/2) allow concurrent acquisition of phase currents and DC-link voltage-essential for vector control accuracy |
| Trusted Memory (TM) Protection | Prevents unauthorized read access to critical boot code in flash; only CPU instruction fetch permitted-blocks firmware extraction attacks |
Applications
| Industrial Motor Drives | Home Appliance Inverters |
|---|---|
|
Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase PMSM motors in HVAC compressors or washing machine drum drives. IC Role / Device Role / Timing Role: Real-time PWM generation, synchronized current sensing, and torque calculation via FPU-accelerated trigonometric functions (TFUv2). Use Value: 260 ps HRPWM resolution minimizes dead-time distortion; simultaneous 3-unit ADC sampling ensures accurate current reconstruction at 20 kHz switching frequency. |
Use Scenario: Variable-speed BLDC motor control in refrigerator evaporator fans and dishwasher circulation pumps. IC Role / Device Role / Timing Role: Integrated MTU3d and GPTWa generate non-overlapping gate signals; RIIC interfaces with temperature sensors and EEPROM for adaptive speed profiles. Use Value: Dual-bank flash enables silent OTA updates; 5-V tolerant I/O simplifies connection to legacy appliance control panels without level shifters. |
| Industrial PLC I/O Modules | Renewable Energy Converters |
|
Use Scenario: High-density digital I/O expansion with integrated diagnostics and CAN FD fieldbus connectivity in modular PLC backplanes. IC Role / Device Role / Timing Role: Event-driven GPIO management via ELC; CAN FD handles distributed I/O status reporting at 2 Mbps with error confinement. Use Value: 82 GPIO with pull-up/pull-down and open-drain options reduce external discrete components; register write protection prevents accidental configuration corruption. |
Use Scenario: Grid-tied solar microinverters requiring precise synchronization, harmonic suppression, and anti-islanding detection. IC Role / Device Role / Timing Role: High-resolution PWM controls MOSFET/IGBT switching; temperature sensor + ADC monitors heatsink thermal margin; IWDT ensures fail-safe shutdown. Use Value: IEC60730-certified safety features eliminate need for external watchdog ICs; 120 MHz deterministic timing meets IEEE1547 grid-synchronization jitter requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar motor control microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F526TBDFA#30 | Same RX26T Group, identical peripherals and memory, but in 80-pin LFQFP (PLQP0080KB-B) with 62 GPIO and 48 KB SRAM | Reduced I/O count and RAM limit suitability for cost-sensitive single-motor drives without simultaneous multi-sensor sampling | Select when board space or BOM cost constraints favor smaller package and lower peripheral density is acceptable |
| R5F523T5DDFK#30 | RX23T Group part: 40 MHz max CPU, 256 KB flash, 32 KB SRAM, no HRPWM, single S12ADH unit (12 ch), no TFUv2 | Lacks 120 MHz timing precision and simultaneous sampling-suitable for basic BLDC commutation but not FOC-grade PMSM control | Choose for entry-level inverter designs where cost sensitivity outweighs advanced motor control feature requirements |
Compared with R5F526TBBDFN#10, R5F526TBDFA#30 offers identical functionality in a smaller footprint but fewer I/O and RAM, while R5F523T5DDFK#30 sacrifices HRPWM, FPU, and ADC parallelism for lower cost and power-making it viable only for less demanding motor algorithms.
Availability
R5F526TBBDFN#10 is available at Aetrix Electronics and suitable for industrial motor drives, home appliance inverters, PLC I/O modules, and renewable energy converters requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability under extended temperature operation.
Supply support for R5F526TBBDFN#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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and enterprise markets.
The RX26T Group-including R5F526TBBDFN#10-is designed specifically for high-performance motor control in industrial inverters and home appliances, integrating precision PWM, safety-certified peripherals, and real-time computation capabilities into a single chip.
FAQ
What is the maximum operating frequency and CoreMark score of the R5F526TBBDFN#10?
The R5F526TBBDFN#10 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark performance. This benchmark reflects its RXv3 CPU core efficiency, including single-cycle instruction execution, 32×32→64-bit hardware multiplier, and optimized pipeline design-enabling deterministic real-time response in motor control loops.
Does the R5F526TBBDFN#10 support IEC60730 functional safety compliance?
Yes, the R5F526TBBDFN#10 includes multiple hardware features for IEC60730 Class B compliance: independent watchdog timer (IWDT) with window function, main clock oscillation stop detection, CRC calculator (CRCA), DOC-assisted RAM test, register write protection, and self-diagnostic ADC functions-all documented in Renesas' safety manual R01UM0123EJ0200.
What package type and pin count does the R5F526TBBDFN#10 use?
The R5F526TBBDFN#10 uses a 100-pin Low-profile Quad Flat Package (LFQFP) designated PLQP0100KB-B, measuring 14 mm × 14 mm with 0.5 mm pitch. It provides 82 general-purpose I/O pins, including 2×5-V tolerant inputs and 15 high-drive outputs, making it suitable for high-density motor control PCB layouts.
How many ADC channels and sample-and-hold units does the R5F526TBBDFN#10 support?
The R5F526TBBDFN#10 supports up to 22 ADC input channels across three independent S12ADH units: Unit 0 (4 channels, 3 sample-and-hold circuits), Unit 1 (4 channels, 3 sample-and-hold circuits), and Unit 2 (14 channels). This architecture enables true simultaneous sampling-critical for accurate three-phase current reconstruction in FOC applications.
What is the resolution and minimum step size of the HRPWM on the R5F526TBBDFN#10?
The HRPWM on the R5F526TBBDFN#10 achieves a minimum timing resolution of 260 ps when operating at 120 MHz. This capability applies to GPTW0 through GPTW3 outputs and directly enables precise dead-time insertion, reduced switching losses, and improved torque linearity in high-efficiency inverter designs.
R5F526TBBDFN#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:
- 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 19x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F526TBBDFN#10 FAQ
1.How can I place an order for R5F526TBBDFN#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F526TBBDFN#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 R5F526TBBDFN#10 reliable?
The price and inventory of R5F526TBBDFN#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F526TBBDFN#10 is usually 5 days.
3.What payment methods are accepted for R5F526TBBDFN#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F526TBBDFN#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F526TBBDFN#10?
R5F526TBBDFN#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F526TBBDFN#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 R5F526TBBDFN#10?
For technical support, including R5F526TBBDFN#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F526TBBDFN#10 requirements.
6.How does Aetrix verify that R5F526TBBDFN#10 is sourced from the original manufacturer or authorized distributors?
All R5F526TBBDFN#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 R5F526TBBDFN#10 meets industry standards.
7.What is the process for return or replacement of R5F526TBBDFN#10?
All R5F526TBBDFN#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F526TBBDFN#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 R5F526TBBDFN#10 part is unused and in its original packaging.
Return procedure for R5F526TBBDFN#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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