Renesas R5F526TFDGFN#50

Overview

R5F526TFDGFN#50 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 high-resolution PWM with 260 ps timing resolution. It supports IEC60730 safety compliance and includes Trusted Secure IP Lite encryption.

For engineers reviewing the R5F526TFDGFN#50 datasheet, R5F526TFDGFN#50 pinout, R5F526TFDGFN#50 application, or R5F526TFDGFN#50 equivalent, key selection criteria include its 100-pin LFQFP package, dual-bank flash for safe firmware updates, simultaneous sampling across three 12-bit ADC units, 3-phase/5-phase complementary PWM generation, and hardware-accelerated trigonometric functions (TFUv2) for real-time motor vector control.

Technical Context

The R5F526TFDGFN#50 implements the RXv3 CPU core with single-cycle instruction execution, 16 general-purpose 32-bit registers, and IEEE 754-compliant single-precision FPU. Its clock system integrates an 8–24 MHz external crystal oscillator, PLL for 120 MHz system clock, and dedicated 120 kHz IWDT oscillator - all supporting independent domain clocks (ICLK up to 120 MHz, PCLKA up to 120 MHz, PCLKB up to 60 MHz).

Peripheral coordination is managed via the Event Link Controller (ELC), enabling 183 internal event signals to trigger timer starts/stops, ADC conversions, or port output changes without CPU intervention. The GPTWa timer unit (8 channels, 32-bit) and MTU3d (9 channels, 16-bit) operate synchronously with PCLKC for precise PWM dead-time control and phase-counting, while HRPWM overlays sub-nanosecond timing adjustments onto GPTW outputs.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin low-profile quad flat package (LFQFP), 14 × 14 mm body, 0.5 mm pitch, –40°C to +105°C operating range (G-version).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TFDGFN#50, the R5F526TADGFN#50 reduces memory and peripheral count for compact designs, while the R5F566TEBDFP#30 extends performance and safety certification scope - making the R5F526TFDGFN#50 the optimal balance of integration, precision, and industrial safety compliance for mainstream inverter applications.

Availability

R5F526TFDGFN#50 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 R5F526TFDGFN#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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The RX26T Group - including R5F526TFDGFN#50 - was designed specifically for high-efficiency motor control in industrial inverters and home appliances, integrating precision analog, deterministic PWM, and functional safety features into a single chip.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TFDGFN#50?

The R5F526TFDGFN#50 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) with sub-microsecond loop times. The RXv3 CPU core delivers single-cycle instruction execution and includes a single-precision FPU compliant with IEEE 754 standards - all verified in the official R01DS0407EJ0120 datasheet.

Does the R5F526TFDGFN#50 support simultaneous sampling across multiple ADC units?

Yes, the R5F526TFDGFN#50 supports simultaneous sampling across three independent 12-bit S12ADH units (Unit 0: 4 channels, Unit 1: 4 channels, Unit 2: 14 channels), enabling concurrent acquisition of phase currents and DC-link voltage in 3-phase motor drives. This capability is confirmed in Table 1.1 and Section 1.1 of the R01DS0407EJ0120 datasheet and is essential for accurate space-vector modulation without sampling skew.

What PWM resolution and complementary output capabilities does the R5F526TFDGFN#50 provide?

The R5F526TFDGFN#50 delivers 260 ps minimum timing resolution via its High-Resolution PWM (HRPWM) module applied to GPTW0–GPTW3 outputs, and supports 10-channel single-phase, 3-channel 3-phase, and 2-channel 5-phase complementary PWM waveforms. These features are explicitly documented in the "High-resolution PWM waveform generation circuit (HRPWM)" and "Up to 29 extended-function timers" sections of the R01DS0407EJ0120 datasheet.

Is the R5F526TFDGFN#50 qualified for IEC60730 Class B safety compliance?

Yes, the R5F526TFDGFN#50 includes dedicated hardware features for IEC60730 Class B compliance: oscillation-stoppage detection, self-diagnostic A/D converter functions, clock frequency accuracy measurement, independent watchdog timer (IWDTa), RAM test-assisting function (DOC), and CRC calculator (CRCA). These are enumerated in the "Useful functions for IEC60730 compliance" section of the R01DS0407EJ0120 datasheet.

What package type and pin count does the R5F526TFDGFN#50 use?

The R5F526TFDGFN#50 uses the PLQP0100KB-B package: a 100-pin low-profile quad flat package (LFQFP) with 14 × 14 mm body size and 0.5 mm pitch, rated for –40°C to +105°C operation (G-version). This package is specified in the "Package Information" section of the R01DS0407EJ0120 datasheet and supports 82 general-purpose I/O pins with 5-V tolerance and open-drain capability.