Renesas R5F526TFBGFM#50

Overview

R5F526TFBGFM#50 from Renesas is a 32-bit RXv3 core microcontroller optimized for motor control and industrial inverter applications, operating at up to 120 MHz with 709 CoreMark performance, 512 KB on-chip flash, 64 KB SRAM, and integrated CAN FD, high-resolution PWM (260 ps min. resolution), and dual 12-bit D/A converters. It targets real-time closed-loop motor drive systems requiring IEC60730 compliance.

For engineers reviewing the R5F526TFBGFM#50 datasheet, R5F526TFBGFM#50 pinout, R5F526TFBGFM#50 application, or R5F526TFBGFM#50 equivalent, key selection criteria include its 120 MHz GPTWa timer with 3-phase/5-phase complementary PWM support, 12-bit S12ADH ADC with simultaneous sampling across three units, embedded Trusted Secure IP Lite AES-256 engine, and PLQP0100KB-B 100-pin QFP package with 5-V tolerant I/O.

Technical Context

The R5F526TFBGFM#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, 240-kHz LOCO, and 16/18/20 MHz HOCO, feeding a PLL to generate 120 MHz ICLK while supporting independent peripheral clocks (PCLKA/PCLKC up to 120 MHz, PCLKB/PCLKD up to 60 MHz).

Motor control functionality is enabled by tightly coupled peripherals: GPTWa (32-bit × 8 channels) and MTU3d (16-bit × 9 channels) provide synchronized PWM generation with dead-time insertion and phase-counting; HRPWM achieves 260 ps timing resolution on GPTW0–GPTW3 outputs; and S12ADH supports simultaneous sampling across three 12-bit A/D units with programmable gain amplifiers on two units.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin Low-profile Quad Flat Package (LFQFP), 14 mm × 14 mm body, 0.5 mm pin 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 R5F526TFBGFM#50, R5F526TDDFGM#50 reduces memory capacity but maintains identical pinout and peripheral set for cost-sensitive volume production, while R5F566TEBGFM#50 upgrades CPU speed and memory bandwidth at the expense of HRPWM precision-making it suitable for compute-bound rather than timing-critical applications.

Availability

R5F526TFBGFM#50 is available at Aetrix Electronics and suitable for industrial motor drives, home appliance inverters, and EV onboard charger designs requiring stable component supply, long-term lifecycle support, and full traceability for safety-critical deployments.

Supply support for R5F526TFBGFM#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power management ICs for industrial, automotive, and IoT applications.

The RX26T Group-including R5F526TFBGFM#50-is designed specifically for high-efficiency, safety-certifiable motor control in inverters, compressors, and industrial drives, integrating precision PWM, simultaneous analog capture, and IEC60730-ready diagnostics.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TFBGFM#50?

The R5F526TFBGFM#50 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark performance. This benchmark reflects real-world execution efficiency of the RXv3 CPU core with its 16 general-purpose 32-bit registers, single-cycle instruction execution, and integrated FPU-enabling deterministic motor control loop timing in the R5F526TFBGFM#50.

Does the R5F526TFBGFM#50 support simultaneous sampling across all A/D converter units?

Yes, the R5F526TFBGFM#50 supports simultaneous sampling across three S12ADH units (Unit 0: 4 channels, Unit 1: 4 channels, Unit 2: 14 channels) using hardware synchronization via MTU3d or GPTWa triggers. This capability is essential for vector control of 3-phase motors where current and voltage measurements must be time-aligned within <100 ns-confirmed in the R01DS0407EJ0120 datasheet for the R5F526TFBGFM#50.

What PWM resolution does the HRPWM feature deliver on the R5F526TFBGFM#50?

The HRPWM circuit in the R5F526TFBGFM#50 delivers a minimum timing resolution of 260 ps when operating at 120 MHz, applied to GPTW0 through GPTW3 outputs. This enables precise dead-time control for SiC and GaN power stages-verified in the "High-resolution PWM waveform generation circuit" section of the R5F526TFBGFM#50 datasheet (R01DS0407EJ0120 Rev.1.20).

Is the R5F526TFBGFM#50 certified for IEC60730 functional safety compliance?

The R5F526TFBGFM#50 includes dedicated hardware features for IEC60730 Class B compliance-including oscillation-stop detection, RAM test assist via DOC, CRC calculator (CRCA), independent watchdog timer (IWDTa), and register write protection. While the device itself is not pre-certified, these integrated functions reduce certification effort for end equipment-explicitly documented for the R5F526TFBGFM#50 in the "Useful functions for IEC60730 compliance" section.

What package type and pin count does the R5F526TFBGFM#50 use?

The R5F526TFBGFM#50 uses the PLQP0100KB-B package: a 100-pin low-profile quad flat package (LFQFP) with 14 mm × 14 mm body size and 0.5 mm pin pitch. It provides 82 general-purpose I/O pins, 2 of which are 5-V tolerant-matching the mechanical and thermal specifications defined in the official Renesas packaging documentation for the R5F526TFBGFM#50.