Renesas R5F526TFDGFL#50

Overview

R5F526TFDGFL#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 hardware-accelerated 3-phase/5-phase complementary PWM generation with 260 ps HRPWM resolution.

For engineers reviewing the R5F526TFDGFL#50 datasheet, R5F526TFDGFL#50 pinout, R5F526TFDGFL#50 application, or R5F526TFDGFL#50 equivalent, key selection criteria include real-time PWM timing precision (260 ps), dual-bank flash for safe firmware updates, IEC60730 safety features including oscillation-stop detection and RAM self-test, and support for simultaneous sampling across three 12-bit A/D units.

Technical Context

The R5F526TFDGFL#50 implements the RXv3 CPU core with single-cycle instruction execution, 113 instructions (including 11 single-precision FPU ops), and collective register bank save for fast context switching. Its clock system integrates an 8–24 MHz external crystal oscillator, 240 kHz LOCO, and 16/18/20 MHz HOCO, with PLL multiplication enabling full-speed 120 MHz operation across ICLK, PCLKA, and PCLKC domains.

Motor control execution relies on tightly coupled peripherals: GPTWa (32-bit × 8 channels) and MTU3d (16-bit × 9 channels) provide synchronized PWM output with dead-time compensation, while ELC enables event-triggered peripheral coordination without CPU intervention-critical for deterministic timing in field-oriented control (FOC) loops.

Key Specifications

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, RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TFDGFL#50, the R5F526TADGFL#50 reduces memory resources while maintaining identical motor control peripherals and safety features-ideal for cost-sensitive volume production. The R5F566TEBGFL#30 delivers significantly higher performance and memory but requires PCB redesign due to different pin count and layout footprint.

Availability

R5F526TFDGFL#50 is available at Aetrix Electronics and suitable for industrial motor drives, automotive HVAC systems, home appliance inverters, and PLC I/O modules requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F526TFDGFL#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 IoT markets.

The RX26T Group is designed specifically for high-performance motor control applications-including inverters, compressors, and industrial drives-with integrated PWM, analog, safety, and communication peripherals optimized for real-time deterministic execution.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TFDGFL#50?

The R5F526TFDGFL#50 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark in benchmark testing. This performance stems from the RXv3 CPU core's single-cycle instruction execution, 32-bit multiplier/divider, and barrel shifter-enabling efficient execution of motor control algorithms such as field-oriented control (FOC) and space vector modulation (SVM) without external acceleration.

Does the R5F526TFDGFL#50 support IEC60730 Class B compliance out of the box?

Yes, the R5F526TFDGFL#50 includes multiple hardware features required for IEC60730 Class B compliance: main clock oscillation-stop detection, A/D converter disconnection check, CRC calculator (CRCA), DOC-assisted RAM test, register write protection, and independent watchdog timer (IWDTa) with window function. These are implemented in silicon and documented in the R01DS0407EJ0120 datasheet for direct integration into safety-critical firmware.

What PWM resolution does the R5F526TFDGFL#50 achieve, and how is it used in motor control?

The R5F526TFDGFL#50 achieves a minimum PWM timing resolution of 260 ps using its HRPWM circuit on GPTW0–GPTW3 channels. This resolution enables precise dead-time control in high-frequency SiC/GaN inverter designs, where nanosecond-level accuracy prevents shoot-through while maximizing efficiency-critical for applications like EV traction inverters and high-speed spindle drives.

How many A/D converter channels does the R5F526TFDGFL#50 support, and what sampling capability does it offer?

The R5F526TFDGFL#50 supports 22 total A/D input channels across three 12-bit S12ADH units: Unit 0 (4 channels), Unit 1 (4 channels), and Unit 2 (14 channels). It provides simultaneous sampling across all three units with hardware-synchronized triggers from GPTW or MTU timers-enabling concurrent acquisition of three-phase currents and DC-link voltage within a single control cycle for accurate FOC implementation.

Is the R5F526TFDGFL#50 pin-compatible with other RX26T Group MCUs?

Yes, the R5F526TFDGFL#50 uses the PLQP0100KB-B (100-pin LFQFP) package and shares identical pinout with other 100-pin RX26T variants such as R5F526TADGFL#50 and R5F526TEDGFL#50. This allows direct substitution within the same footprint for memory or feature scaling-provided software is adapted to match flash/SRAM size and peripheral enablement settings defined in the option byte configuration.