Renesas R5F526TBDDFL#30

Overview

R5F526TBDDFL#30 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 supports IEC60730 safety compliance and operates across –40°C to +85°C.

For engineers reviewing the R5F526TBDDFL#30 datasheet, R5F526TBDDFL#30 pinout, R5F526TBDDFL#30 application, or R5F526TBDDFL#30 equivalent, key selection criteria include its 100-pin LFQFP package, dual-bank flash for safe firmware updates, simultaneous sampling across three 12-bit A/D units, 3-phase complementary PWM generation with automatic dead-time insertion, and Trusted Secure IP Lite encryption support.

Technical Context

The R5F526TBDDFL#30 implements the RXv3 CPU core with single-cycle instruction execution, IEEE 754-compliant single-precision FPU, and 16-register bank save capability. Its clock system integrates an 8–24 MHz external crystal oscillator, PLL for 120 MHz system clock, and dedicated 120 kHz IWDT oscillator.

Peripheral coordination is managed via the Event Link Controller (ELC), enabling 183 internal event signals to trigger timer starts/stops, A/D conversions, or port output changes without CPU intervention-critical for deterministic motor control loops. The GPTWa timer unit delivers 32-bit PWM with synchronous multi-channel operation and hardware-based dead-time compensation.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin Low-profile Quad Flat Package, 14 × 14 mm body, 0.5 mm pitch, exposed thermal pad, RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TBDDFL#30, the R5F526TADDFL#30 offers reduced memory and pin count for simpler applications, while the R5F566TEADFP#30 delivers higher performance and expanded safety certification - making the R5F526TBDDFL#30 the optimal balance of integration, cost, and industrial-grade motor control capability.

Availability

R5F526TBDDFL#30 is available at Aetrix Electronics and suitable for industrial motor drives, automotive HVAC systems, home appliance inverters, and renewable energy converters requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for R5F526TBDDFL#30 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 is designed specifically for high-performance motor control and power conversion applications, integrating precision analog peripherals, deterministic real-time processing, and functional safety features into a single chip.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TBDDFL#30?

The R5F526TBDDFL#30 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark in benchmark testing. This performance level enables real-time execution of complex motor control algorithms such as field-oriented control (FOC) and model predictive control (MPC) without external acceleration. The RXv3 core's single-cycle instruction execution and 16-register bank save function further reduce interrupt latency critical for high-speed PWM modulation.

Does the R5F526TBDDFL#30 support IEC60730 Class B or Class C compliance?

Yes, the R5F526TBDDFL#30 includes multiple hardware features required for IEC60730 Class C compliance, including oscillation-stop detection, RAM test-assisting function via DOC, CRC calculator (CRCA), independent watchdog timer with window function, and register write protection. These capabilities reduce software validation effort and support self-diagnostic routines needed for safety-critical motor control applications in household and industrial appliances.

What package type and pin count does the R5F526TBDDFL#30 use?

The R5F526TBDDFL#30 uses the PLQP0100KB-B package: a 100-pin Low-profile Quad Flat Package with 14 × 14 mm body size and 0.5 mm pitch. This package provides 82 general-purpose I/O pins with 5-V tolerance, open-drain capability, and programmable drive strength - ideal for interfacing with gate drivers, sensors, and communication transceivers in compact motor control boards.

How many A/D converter channels does the R5F526TBDDFL#30 support, and are they simultaneously sampled?

The R5F526TBDDFL#30 supports up to 22 channels across three independent 12-bit S12ADH units (4+4+14), and all units can be triggered simultaneously via hardware events from GPTWa or MTU3d. This simultaneous sampling capability ensures coherent acquisition of phase currents and DC-link voltage - essential for accurate torque estimation and harmonic suppression in 3-phase inverter systems.

What is the resolution and timing capability of the high-resolution PWM (HRPWM) in the R5F526TBDDFL#30?

The R5F526TBDDFL#30 integrates 4-channel HRPWM circuitry capable of controlling rising/falling edges of GPTWa-generated PWM waveforms with a minimum resolution of 260 ps at 120 MHz operation. This sub-nanosecond timing precision allows fine-grained dead-time adjustment to prevent shoot-through in SiC/GaN-based inverters and enables advanced modulation schemes like space-vector PWM with minimal distortion.