Renesas R5F526TFBDFM#30

Overview

R5F526TFBDFM#30 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 complementary PWM generation with dead-time control.

For engineers reviewing the R5F526TFBDFM#30 datasheet, R5F526TFBDFM#30 pinout, R5F526TFBDFM#30 application, or R5F526TFBDFM#30 equivalent, key selection criteria include its 120 MHz real-time PWM timing resolution (260 ps minimum), dual-bank flash for safe firmware updates, IEC60730-compliant safety features, and support for simultaneous sampling across three 12-bit A/D units - critical for high-fidelity current/voltage sensing in servo drives.

Technical Context

The R5F526TFBDFM#30 implements the RXv3 CPU core with single-cycle instruction execution, IEEE 754-compliant single-precision FPU, and collective register bank save for fast context switching in interrupt-heavy motor control loops. Its clock system supports independent domain scaling: ICLK at 120 MHz for CPU execution, PCLKA at 120 MHz for GPTW/MTU/HRPWM peripherals, and PCLKD at 60 MHz for S12ADH conversion.

Real-time control is enhanced by the Event Link Controller (ELC), which enables 183 internal event signals to trigger peripheral operations-including A/D conversion start, PWM waveform updates, and comparator output toggling-without CPU intervention, even during sleep mode. The HRPWM circuit synchronizes with GPTWa channels to achieve sub-nanosecond edge placement accuracy using dedicated 120 MHz reference clocks.

Key Specifications

Pinout & Package

PLQP0100KB-B is a 100-pin low-profile quad flat package (LFQFP) with 0.5 mm pitch, 14 × 14 mm body size, and operating temperature range of –40°C to +85°C (D-version). It supports 82 general-purpose I/O pins, including 2× 5-V tolerant inputs and 15× large-current outputs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TFBDFM#30, the R5F526TDDFK#30 offers identical real-time control capabilities in a smaller footprint but fewer I/Os, while the R5F523T5DDFK#30 sacrifices HRPWM precision and safety features for cost reduction - making it suitable only for less demanding motor control tasks.

Availability

R5F526TFBDFM#30 is available at Aetrix Electronics and suitable for industrial servo drives, automotive electric power steering (EPS), home appliance inverters, and uninterruptible power supplies (UPS) requiring stable component supply, long-term lifecycle support, and traceable sourcing for safety-critical designs.

Supply support for R5F526TFBDFM#30 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, power, and SoC solutions for automotive, industrial, and IoT markets, with deep expertise in real-time control and functional safety.

The RX26T Group, including R5F526TFBDFM#30, was designed specifically for high-performance motor control applications requiring deterministic PWM timing, integrated safety mechanisms, and multi-protocol connectivity in industrial and automotive environments.

FAQ

What is the maximum operating frequency and CPU architecture of the R5F526TFBDFM#30?

The R5F526TFBDFM#30 operates at a maximum frequency of 120 MHz using the 32-bit RXv3 CPU core. It delivers 709 CoreMark performance and supports single-cycle instruction execution, IEEE 754-compliant floating-point arithmetic, and collective register bank save for rapid interrupt handling - all critical for real-time motor control algorithms executed on the R5F526TFBDFM#30.

Does the R5F526TFBDFM#30 support IEC60730 functional safety compliance?

Yes, the R5F526TFBDFM#30 includes multiple hardware features certified for IEC60730 Class B compliance: oscillation-stop detection, self-diagnostic A/D converter functions, RAM test assistance via DOC, CRC calculator (CRCA), independent watchdog timer (IWDT) with window function, and register write protection. These capabilities are integral to the R5F526TFBDFM#30's safety architecture and reduce external component dependencies.

What PWM resolution and configuration options does the R5F526TFBDFM#30 provide for motor control?

The R5F526TFBDFM#30 supports three-tiered PWM generation: 8-channel 32-bit GPTWa, 9-channel 16-bit MTU3d, and 4-channel HRPWM with a minimum resolution of 260 ps at 120 MHz. It enables single-phase (10 outputs), 3-phase (3 outputs), and 5-phase (2 outputs) complementary PWM modes with automatic dead-time insertion - all configurable through the R5F526TFBDFM#30's peripheral registers and ELC-triggered updates.

How many analog-to-digital converter channels does the R5F526TFBDFM#30 support, and what is their sampling capability?

The R5F526TFBDFM#30 integrates three 12-bit S12ADH units totaling 22 input channels: Unit 0 (4 channels), Unit 1 (4 channels), and Unit 2 (14 channels). Each unit includes dedicated sample-and-hold circuits, supports simultaneous sampling, and achieves a minimum conversion time of 0.9 µs per channel at 60 MHz ADCLK - enabling precise, phase-aligned current sensing across all motor phases in the R5F526TFBDFM#30.

What communication interfaces are integrated into the R5F526TFBDFM#30 for industrial networking?

The R5F526TFBDFM#30 integrates CAN FD (ISO11898-1:2015 compliant, up to 5 Mbps), four SCI channels, three RSCI channels (with LIN and Manchester encoding), one I2C (RIICa, 400 kbps), one I3C (RI3C, SDR mode), and two SPI interfaces (RSPId and RSPIA). This multi-protocol support enables robust, high-speed communication between the R5F526TFBDFM#30 and host controllers, sensors, and battery management systems in industrial and automotive networks.