Renesas R5F526TFCDFL#50

Overview

R5F526TFCDFL#50 from Renesas is a 32-bit RXv3 microcontroller optimized for motor control and industrial inverter applications, operating at up to 120 MHz with 709 CoreMark performance, integrated 512 KB code flash, 64 KB SRAM, 16 KB data flash, and hardware-accelerated 3-phase/5-phase complementary PWM generation. It supports CAN FD, I3C, and dual high-resolution PWM channels with 260 ps timing resolution for precise gate drive control in BLDC/PMSM inverters.

For engineers reviewing the R5F526TFCDFL#50 datasheet, R5F526TFCDFL#50 pinout, R5F526TFCDFL#50 application, or R5F526TFCDFL#50 equivalent, this MCU delivers deterministic real-time motor control with on-chip FPU, Trusted Secure IP Lite encryption, IEC60730-compliant safety features, and simultaneous sampling across three 12-bit A/D units - critical for field-oriented control (FOC) loop execution and current sensing accuracy.

Technical Context

The R5F526TFCDFL#50 implements the RXv3 CPU core with single-cycle instruction execution, 16 general-purpose 32-bit registers, and IEEE 754-compliant single-precision FPU - enabling efficient trigonometric computation via TFUv2 for FOC algorithms. Its clock system integrates PLL-synthesized 120 MHz ICLK, independent PCLKA/PCLKC domains (up to 120 MHz), and dedicated IWDT oscillator for fail-safe timing.

Motor control is enabled by tightly coupled peripherals: GPTWa (32-bit × 8-channel) and MTU3d (16-bit × 9-channel) timers support synchronous PWM generation, dead-time insertion, and phase-counting; HRPWM provides 260 ps resolution on GPTW0–GPTW3 outputs; S12ADH offers three sample-and-hold units (4+4+14 channels) for simultaneous current/voltage acquisition.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B (100-pin LFQFP, 14 × 14 mm, 0.5 mm pitch). Pin count and I/O configuration match full-featured 100-pin variant: 82 general-purpose I/O pins (5-V tolerant, open-drain capable), 2 dedicated 5-V tolerant pins, 15 large-current output pins, and dedicated MTU/GPTW waveform output pins controlled by POE3D/POEG.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TFCDFL#50, R5F526TDDFL#50 trades memory and I/O for lower cost and footprint, while R5F566TEBDFL#50 extends real-time capability with higher clock rate, larger memory, and expanded ADC/timer resources - making the R5F526TFCDFL#50 the optimal balance of performance, integration, and cost for mainstream industrial motor control.

Availability

R5F526TFCDFL#50 is available at Aetrix Electronics and suitable for industrial motor drives, home appliance inverters, automotive EPS systems, and PLC motion controllers requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.

Supply support for R5F526TFCDFL#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 specializing in microcontrollers, analog, and power solutions for industrial, automotive, and IoT applications - with over 40 years of embedded systems expertise.

The RX26T Group is designed specifically for high-efficiency motor control in industrial and consumer inverters, integrating precision PWM, simultaneous sampling ADC, and safety features to replace discrete analog/motor control IC combinations.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TFCDFL#50?

The R5F526TFCDFL#50 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark performance. This benchmark reflects its RXv3 CPU core's efficiency in executing real-time motor control algorithms, including field-oriented control (FOC) loops, with minimal interrupt latency and deterministic timing - critical for maintaining torque stability in high-speed BLDC applications.

Does the R5F526TFCDFL#50 support simultaneous sampling across multiple ADC units?

Yes, the R5F526TFCDFL#50 supports simultaneous sampling across three independent 12-bit S12ADH units (4+4+14 channels) using shared ADTRG trigger inputs. This capability ensures zero phase skew between motor phase current and DC bus voltage measurements - a fundamental requirement for accurate vector control and torque ripple reduction in industrial inverters.

What PWM resolution does the R5F526TFCDFL#50 provide for high-precision motor control?

The R5F526TFCDFL#50 delivers 260 ps minimum timing resolution via its 4-channel HRPWM circuit, which enhances GPTWa outputs (GPTW0–GPTW3). This resolution enables nanosecond-level edge placement accuracy for advanced modulation techniques like space-vector PWM and dead-time optimization - directly improving inverter efficiency and reducing electromagnetic interference in sensitive environments.

Is the R5F526TFCDFL#50 certified for IEC60730 Class B compliance?

The R5F526TFCDFL#50 includes hardware features required for IEC60730 Class B compliance - including oscillation-stop detection, RAM test assist (DOC), CRC calculator (CRCA), analog input disconnection detection, and register write protection. These are implemented in silicon and documented in Renesas' functional safety manual R01UM0579EJ0100, enabling certified motor control designs without external safety monitors.

What package type and pin count does the R5F526TFCDFL#50 use?

The R5F526TFCDFL#50 uses the PLQP0100KB-B package: a 100-pin low-profile quad flat package (LFQFP) measuring 14 × 14 mm with 0.5 mm pitch. It provides 82 general-purpose I/O pins (5-V tolerant), 15 large-current outputs, and dedicated waveform output pins for MTU3d and GPTWa - supporting full-featured motor control with integrated gate driver interfacing and sensor connectivity.