Renesas R5F526TFCDFM#50

Overview

R5F526TFCDFM#50 from Renesas is a 32-bit RXv3 microcontroller optimized for motor control and industrial inverter applications, featuring 120 MHz operation, 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 timing resolution.

For engineers reviewing the R5F526TFCDFM#50 datasheet, R5F526TFCDFM#50 pinout, R5F526TFCDFM#50 application, or R5F526TFCDFM#50 equivalent, this MCU delivers deterministic real-time motor control with IEC60730-compliant safety features, dual-bank flash for seamless firmware updates, and event-driven peripheral coordination via ELC-critical for high-efficiency BLDC/PMSM drive designs.

Technical Context

The R5F526TFCDFM#50 implements the RXv3 CPU core with single-cycle instruction execution at 120 MHz, supporting 113 instructions including DSP and single-precision FPU operations compliant with IEEE 754. It integrates a memory protection unit (MPU), Trusted Memory (TM) for secure code execution, and register bank save for fast context switching in interrupt-heavy motor control loops.

Its timing architecture separates system clock (ICLK up to 120 MHz), peripheral clocks (PCLKA/B/C/D), and flash interface clock (FCLK up to 60 MHz), enabling independent optimization of CPU performance, PWM timing precision (PCLKC-synchronized GPTWa/HRPWM), and analog conversion speed (ADCLK up to 60 MHz). The ELC enables direct inter-module triggering without CPU intervention-e.g., MTU3d timer events initiating A/D conversions or HRPWM edge adjustments.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin Low-Profile Quad Flat Package, 14 × 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 microcontroller applications.

Compared with R5F526TFCDFM#50, the R5F526TDDFK#50 reduces package size and memory but retains identical PWM/ADC safety features-ideal for cost-sensitive volume production. The R5F566TEBDFP#30 adds significant compute headroom and memory for next-generation adaptive control algorithms, though at higher power and BOM cost.

Availability

R5F526TFCDFM#50 is available at Aetrix Electronics and suitable for industrial motor drives, home appliance inverters, automotive auxiliary systems, and PLC motion control requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for safety-critical designs.

Supply support for R5F526TFCDFM#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 enterprise markets.

The RX26T Group, including R5F526TFCDFM#50, was designed specifically for high-efficiency motor control in inverters and industrial drives-integrating precision PWM, robust analog sensing, functional safety, and real-time communication in a single chip.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TFCDFM#50?

The R5F526TFCDFM#50 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark in benchmark testing. This performance stems from its RXv3 CPU core with single-cycle instruction execution, on-chip 32-bit multiplier/divider, and barrel shifter-enabling deterministic real-time response in motor control loops without pipeline stalls or wait states.

Does the R5F526TFCDFM#50 support IEC60730 Class B compliance out of the box?

Yes, the R5F526TFCDFM#50 includes multiple hardware features certified for IEC60730 Class B compliance: oscillation-stoppage detection, A/D converter disconnection detection, clock frequency accuracy measurement, independent watchdog timer (IWDT), RAM test-assisting function via DOC, and CRCA for data integrity. These are implemented in silicon-not software libraries-reducing certification effort.

How many analog-to-digital converter (ADC) channels does the R5F526TFCDFM#50 support, and what is their resolution?

The R5F526TFCDFM#50 integrates a 12-bit S12ADH ADC with 22 total input channels distributed across three sample-and-hold units: Unit 0 (4 channels), Unit 1 (4 channels), and Unit 2 (14 channels). Its minimum conversion time is 0.9 µs per channel when ADCLK runs at 60 MHz, enabling high-fidelity current sensing in multi-shunt motor control topologies.

What PWM capabilities does the R5F526TFCDFM#50 offer for 3-phase inverter control?

The R5F526TFCDFM#50 provides 3-phase complementary PWM via its MTU3d module (9 channels) and GPTWa timer (8 channels), with automatic dead-time insertion, synchronous update, and non-overlapping waveform generation. Combined with 4-channel HRPWM offering 260 ps timing resolution, it supports precise gate drive timing for SiC/GaN-based inverters operating above 100 kHz switching frequencies.

Is CAN FD supported on the R5F526TFCDFM#50, and which standard does it comply with?

Yes, the R5F526TFCDFM#50 includes one CAN FD module compliant with ISO 11898-1:2015, supporting both standard (11-bit) and extended (29-bit) frame formats with data rates up to 5 Mbps in the data phase. This enables high-bandwidth, low-latency communication between R5F526TFCDFM#50-based drives and host controllers in industrial automation networks.