Renesas R5F526TBDDND#10

Overview

R5F526TBDDND#10 from Renesas is a 32-bit RXv3 microcontroller optimized for motor control and industrial inverter applications, featuring a 120 MHz CPU core, 512 KB on-chip code flash, 64 KB SRAM, 16 KB data flash, integrated CAN FD interface, and hardware-accelerated 3-phase/5-phase complementary PWM generation with 260 ps timing resolution.

For engineers reviewing the R5F526TBDDND#10 datasheet, R5F526TBDDND#10 pinout, R5F526TBDDND#10 application, or R5F526TBDDND#10 equivalent, key selection criteria include its dual-bank flash architecture for safe firmware updates, IEC60730-compliant safety features (oscillation-stop detection, RAM test assist, CRC), and dedicated HRPWM circuitry enabling precise gate drive timing in high-efficiency motor drives.

Technical Context

The R5F526TBDDND#10 implements the RXv3 CPU core with single-cycle instruction execution, IEEE 754-compliant single-precision FPU, and 16-register bank save for fast context switching-critical for real-time motor control loop execution. Its clock system integrates PLL, 240-kHz LOCO, and 120-kHz IWDT-dedicated oscillator to support independent timing domains for CPU (ICLK), peripherals (PCLKA–D), and flash (FCLK).

Peripheral coordination is managed via the Event Link Controller (ELC), which enables 183 internal event signals-including MTU3d/GPTWa timer triggers and A/D conversion starts-to initiate module operations without CPU intervention, reducing latency and power consumption during sleep-mode operation.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B, 100-pin Low-Profile Quad Flat Package (LQFP), 14 × 14 mm body, 0.5 mm pitch, exposed pad for thermal dissipation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar motor control MCU applications.

Compared with R5F526TBDDND#10, the R5F526TADDFP#30 offers reduced footprint and cost at the expense of I/O count and memory-suitable for simplified motor control, while the R5F566TEBDFP#30 delivers higher performance and scalability but requires full hardware and firmware redesign.

Availability

R5F526TBDDND#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 support, and traceable sourcing.

Supply support for R5F526TBDDND#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 automotive, industrial, and IoT markets.

The RX26T Group, including R5F526TBDDND#10, was designed specifically for high-precision motor control in industrial inverters and home appliances-integrating advanced PWM, safety features, and real-time processing in a single chip.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TBDDND#10?

The R5F526TBDDND#10 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark in benchmark testing. This performance level enables real-time execution of field-oriented control (FOC) algorithms with minimal interrupt latency. The RXv3 CPU core supports single-cycle instruction execution and includes a single-precision FPU compliant with IEEE 754, making the R5F526TBDDND#10 well-suited for computationally intensive motor control tasks.

Does the R5F526TBDDND#10 support IEC60730 Class B compliance for safety-critical applications?

Yes, the R5F526TBDDND#10 includes multiple hardware features required for IEC60730 Class B certification: oscillation-stop detection, RAM test assist using the DOC function, CRC calculator (CRCA), self-diagnostic A/D converter disconnection detection, and register write protection. These capabilities reduce the need for external safety monitors and simplify certification efforts for industrial motor drives and home appliance inverters using the R5F526TBDDND#10.

What PWM resolution and channel count does the R5F526TBDDND#10 provide for motor control?

The R5F526TBDDND#10 provides 8-channel 32-bit GPTWa timers plus 4-channel High-Resolution PWM (HRPWM) with a minimum timing resolution of 260 ps at 120 MHz operation. It supports single-phase (10 outputs), 3-phase (3 outputs), and 5-phase (2 outputs) complementary PWM modes. This capability allows precise dead-time control and phase alignment critical for minimizing shoot-through current and EMI in inverter gate driver circuits using the R5F526TBDDND#10.

How does the Event Link Controller (ELC) enhance real-time performance in the R5F526TBDDND#10?

The ELC in the R5F526TBDDND#10 enables 183 internal event signals-including timer compare matches, ADC conversion completions, and comparator outputs-to directly trigger peripheral actions without CPU intervention. For example, a GPTWa timer event can automatically start an ADC conversion or update a PWM duty cycle, reducing interrupt latency and CPU load. This hardware-based coordination improves determinism and efficiency in time-critical motor control loops executed on the R5F526TBDDND#10.

What package type and pin count does the R5F526TBDDND#10 use, and what are its key mechanical attributes?

The R5F526TBDDND#10 uses the PLQP0100KB-B package: a 100-pin Low-Profile Quad Flat Package (LQFP) with 14 × 14 mm body size and 0.5 mm pitch. It features an exposed thermal pad for enhanced heat dissipation and supports up to 83 general-purpose I/O pins, including 5-V tolerant inputs and large-current outputs. This package balances high I/O density with manufacturability and thermal performance in industrial inverter applications using the R5F526TBDDND#10.