Renesas R5F526TBDDFM#10

Overview

R5F526TBDDFM#10 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, CAN FD interface, and integrated high-resolution PWM with 260 ps timing resolution. It supports IEC60730 functional safety compliance and operates across –40°C to +85°C.

For engineers reviewing the R5F526TBDDFM#10 datasheet, R5F526TBDDFM#10 pinout, R5F526TBDDFM#10 application, or R5F526TBDDFM#10 equivalent, key selection criteria include its 120 MHz GPTWa timer with 3-phase/5-phase complementary PWM, dual-bank flash for safe firmware updates, Trusted Secure IP Lite encryption, and hardware-accelerated trigonometric functions (TFUv2) for real-time motor vector control.

Technical Context

The R5F526TBDDFM#10 implements the RXv3 CPU core with single-cycle instruction execution, IEEE 754-compliant single-precision FPU, and 16-register bank save for fast context switching in interrupt-heavy motor control loops. Its clock system integrates PLL, HOCO (16/18/20 MHz), LOCO (240 kHz), and IWDT-dedicated 120 kHz oscillator - enabling independent timing domains for PCLKA (120 MHz), PCLKB (60 MHz), PCLKC (120 MHz), and PCLKD (60 MHz).

Peripheral coordination is managed via Event Link Controller (ELC), supporting 183 internal event signals to trigger timer starts/stops, A/D conversion triggers, or port output changes without CPU intervention - critical for deterministic timing in field-oriented control (FOC) algorithms. The MTU3d and GPTWa timers operate synchronously with PCLKC for precise PWM edge placement, while HRPWM overlays sub-nanosecond timing adjustments onto GPTW0–GPTW3 outputs.

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 exposed thermal pad. Designed for high-density motor control PCBs, it supports 82 general-purpose I/O pins (including 2× 5-V tolerant, 15× large-current drive), dedicated MTU/GPTW waveform outputs, and multiple analog input groups routed to separate S12ADH sample-and-hold units.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TBDDFM#10, R5F526TADDFM#10 offers lower integration and smaller package for compact inverter modules, while R5F566TEBDFP#30 delivers higher compute throughput and safety certification for mission-critical motion control - making R5F526TBDDFM#10 the optimal balance of precision PWM, embedded safety, and motor-specific acceleration in mid-tier industrial drives.

Availability

R5F526TBDDFM#10 is available at Aetrix Electronics and suitable for industrial motor drives, home appliance inverters, automotive auxiliary systems, and PLC I/O modules requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for R5F526TBDDFM#10 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.

The RX26T Group - including R5F526TBDDFM#10 - was designed specifically for high-efficiency, high-precision motor control in inverters and industrial drives, integrating hardware-accelerated PWM, safety mechanisms, and real-time analog subsystems.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TBDDFM#10?

The R5F526TBDDFM#10 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, 32-bit multiplier/divider, barrel shifter, and optimized memory subsystem - all validated in the official Renesas datasheet R01DS0407EJ0120 Rev.1.20. The R5F526TBDDFM#10 sustains this speed with no-wait access to both 512 KB flash and 64 KB SRAM.

Does the R5F526TBDDFM#10 support CAN FD, and what standard does it comply with?

Yes, the R5F526TBDDFM#10 integrates a single-channel CAN FD module compliant with ISO 11898-1:2015, supporting both standard and extended frames. It enables data rates up to 5 Mbps in FD mode while maintaining backward compatibility with classical CAN networks. This capability is confirmed in the peripheral specification table of the R01DS0407EJ0120 datasheet and is implemented in hardware without software overhead - making the R5F526TBDDFM#10 suitable for modern automotive and industrial networked motor control systems.

What is the resolution and timing capability of the HRPWM in the R5F526TBDDFM#10?

The R5F526TBDDFM#10 features a 4-channel High-Resolution PWM (HRPWM) circuit capable of adjusting rising or falling edges of GPTWa-generated waveforms with a minimum resolution of 260 ps when operating at 120 MHz. This sub-nanosecond timing control is achieved through dedicated hardware overlay logic and is explicitly documented in the "High-resolution PWM waveform generation circuit" section of the R01DS0407EJ0120 datasheet - enabling precise dead-time management for SiC/GaN-based inverter stages in the R5F526TBDDFM#10.

How many ADC channels and sample-and-hold units does the R5F526TBDDFM#10 include?

The R5F526TBDDFM#10 includes 22 total channels across three 12-bit S12ADH ADC units: Unit 0 (4 channels, 3 sample-and-hold circuits), Unit 1 (4 channels, 3 sample-and-hold circuits), and Unit 2 (14 channels). This configuration supports simultaneous sampling across multiple analog inputs - essential for vector control current sensing. All specifications are confirmed in Table 1.1 and Section 1.1 of the R01DS0407EJ0120 datasheet, and apply specifically to the 64 KB RAM variant represented by the R5F526TBDDFM#10.

What safety and security features are built into the R5F526TBDDFM#10 for IEC60730 compliance?

The R5F526TBDDFM#10 includes dedicated hardware features for IEC60730 Class B compliance: oscillation-stop detection, A/D converter disconnection detection, clock frequency accuracy measurement, independent watchdog timer (IWDTa) with window function, RAM test-assisting function via DOC, CRCA for data integrity, and register write protection. These are explicitly listed in the "Useful functions for IEC60730 compliance" section of the R01DS0407EJ0120 datasheet - confirming that the R5F526TBDDFM#10 meets functional safety requirements without external components.