Renesas R5F526TFBGND#50

Overview

R5F526TFBGND#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 supports IEC60730 safety compliance and operates across –40°C to +85°C in industrial motor drives.

For engineers reviewing the R5F526TFBGND#50 datasheet, R5F526TFBGND#50 pinout, R5F526TFBGND#50 application, or R5F526TFBGND#50 equivalent, key selection criteria include its 120 MHz GPTWa timer with 3-phase/5-phase complementary PWM, dual-bank flash for safe firmware updates, Trusted Secure IP Lite encryption, and hardware-accelerated trigonometric functions (TFUv2) for real-time FOC algorithms.

Technical Context

The R5F526TFBGND#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 deterministic 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 isolation between control, communication, and safety domains.

Peripheral coordination is managed via Event Link Controller (ELC), supporting 183 internal event signals to trigger MTU3d, GPTWa, and S12ADH operations without CPU intervention-enabling synchronized PWM generation, ADC sampling, and dead-time compensation in sleep mode. The MPU enforces eight memory protection areas, while Trusted Memory (TM) restricts code flash read access to CPU instruction fetch only.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin Low-Profile Quad Flat Package, 14 mm × 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 R5F526TFBGND#50, R5F526TDDFD#50 reduces footprint and cost at the expense of PWM channel count and ADC resources, while R5F566TEBDFP#30 delivers greater processing bandwidth and peripheral integration for scalable platform architectures-but requires PCB redesign and toolchain migration.

Availability

R5F526TFBGND#50 is available at Aetrix Electronics and suitable for industrial motor drives, electric power steering systems, home appliance inverters, and renewable energy converters requiring stable component supply and long-term lifecycle support.

Supply support for R5F526TFBGND#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, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX26T Group-including R5F526TFBGND#50-is designed specifically for high-performance motor control and power conversion applications, integrating hardware acceleration for FOC, robust safety features, and CAN FD for real-time distributed systems.

FAQ

What is the maximum operating frequency and CPU architecture of the R5F526TFBGND#50?

The R5F526TFBGND#50 features a 32-bit RXv3 CPU core operating at up to 120 MHz, delivering 709 CoreMark performance. It supports single-cycle instruction execution, IEEE 754-compliant single-precision floating-point unit (FPU), and collective register bank save for low-latency context switching-essential for deterministic motor control loops. The R5F526TFBGND#50 achieves this performance with no wait-state access to both 512 KB flash and 64 KB SRAM.

Does the R5F526TFBGND#50 support IEC60730 Class B compliance for household appliances?

Yes, the R5F526TFBGND#50 includes dedicated hardware features for IEC60730 Class B compliance: oscillation-stoppage detection, self-diagnostic A/D converter functions, clock frequency accuracy measurement circuit, independent watchdog timer (IWDTa) with window function, RAM test-assisting function using DOC, and CRC calculator (CRCA). These capabilities are documented in Renesas Application Note R01AN3929JJ0100 and validated per the R5F526TFBGND#50 datasheet Section 1.10.

What PWM resolution and channel count does the R5F526TFBGND#50 provide for motor control?

The R5F526TFBGND#50 provides two complementary PWM subsystems: GPTWa (32-bit × 8 channels) for flexible waveform generation and HRPWM (4 channels) with 260 ps minimum timing resolution at 120 MHz. This enables precise dead-time control for SiC/GaN gate drivers and supports 3-phase, 5-phase, and single-phase complementary PWM modes-critical for minimizing switching losses in high-efficiency inverters.

How many analog-to-digital converter (ADC) channels does the R5F526TFBGND#50 support, and what is their resolution?

The R5F526TFBGND#50 integrates the S12ADH 12-bit A/D converter with three sample-and-hold units: Unit 0 (4 channels), Unit 1 (4 channels), and Unit 2 (14 channels), totaling 22 configurable input channels. Minimum conversion time is 0.9 µs per channel when ADCLK runs at 60 MHz. All units support simultaneous sampling triggered via ELC from GPTWa or MTU3d, enabling accurate current/voltage acquisition in motor control applications.

What package type and pin count does the R5F526TFBGND#50 use?

The R5F526TFBGND#50 uses the PLQP0100KB-B package: a 100-pin Low-Profile Quad Flat Package with 14 mm × 14 mm body size, 0.5 mm pitch, and exposed thermal pad. This package supports –40°C to +85°C operation (D-version) and provides 82 general-purpose I/O pins with 5-V tolerance, open-drain capability, and programmable drive strength-optimized for industrial noise immunity and thermal management in motor drive PCBs.