Renesas R5F526TACDFM#10

Overview

R5F526TACDFM#10 from Renesas is a 32-bit RXv3 microcontroller optimized for motor control in industrial inverters and servo drives, featuring 120 MHz operation, 512 KB code flash, 64 KB SRAM, 16 KB data flash, CAN FD interface, and hardware-accelerated 3-phase PWM generation with 260 ps timing resolution.

For engineers reviewing the R5F526TACDFM#10 datasheet, R5F526TACDFM#10 pinout, R5F526TACDFM#10 application, or R5F526TACDFM#10 equivalent, key selection criteria include its integrated HRPWM for precise gate timing, dual-bank flash for safe firmware updates, IEC60730-compliant safety features, and on-chip FPU for real-time motor algorithms.

Technical Context

The R5F526TACDFM#10 implements the RXv3 CPU core with single-cycle instruction execution at 120 MHz, supporting 113 instructions including DSP and single-precision floating-point operations compliant with IEEE 754. Its memory protection unit (MPU) enforces eight configurable memory regions with 16-byte granularity for secure code isolation.

Timing control is managed via three synchronized clock domains: ICLK (up to 120 MHz for CPU), PCLKA (up to 120 MHz for MTU/GPTW/HRPWM), and PCLKD (up to 60 MHz for A/D conversion). The ELC enables direct inter-module event linking-e.g., MTU trigger → A/D start-without CPU intervention, reducing latency in closed-loop motor control.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin Low-Profile Quad Flat Package (LFQFP), 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 MCU applications.

Compared with R5F526TACDFM#10, the R5F526TADFM#10 offers identical peripheral integration but reduced memory for cost-driven volume production, while the R5F523T5DDFM#30 sacrifices performance, safety features, and modern bus support for footprint and price reduction in less demanding applications.

Availability

R5F526TACDFM#10 is available at Aetrix Electronics and suitable for industrial motor drives, automotive HVAC systems, home appliance inverters, and PLC I/O modules requiring stable component supply, long-term lifecycle assurance, and full traceability.

Supply support for R5F526TACDFM#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 headquartered in Tokyo, Japan, delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX26T Group is designed specifically for high-precision motor control applications-including inverters, servo amplifiers, and industrial automation-integrating advanced PWM, safety, and communication capabilities into a single chip.

FAQ

What is the maximum operating frequency and CPU architecture of the R5F526TACDFM#10?

The R5F526TACDFM#10 operates at a maximum frequency of 120 MHz using the 32-bit RXv3 CPU core. It delivers 709 CoreMark performance and includes single-precision floating-point support compliant with IEEE 754. The core features a collective register bank save function, memory protection unit (MPU), and JTAG/FINE debugging interfaces-all confirmed in the official R01DS0407EJ0120 datasheet.

Does the R5F526TACDFM#10 support CAN FD, and what standard does it comply with?

Yes, the R5F526TACDFM#10 integrates a CAN FD module compliant with ISO 11898-1:2015, supporting both standard and extended frames at data rates up to 5 Mbps. This capability is explicitly documented in the "Communication function" section of the R01DS0407EJ0120 datasheet and enables high-bandwidth diagnostics and control messaging in modern motor drive systems.

What PWM resolution and channel count does the R5F526TACDFM#10 provide for motor control?

The R5F526TACDFM#10 provides two complementary PWM subsystems: GPTWa (8-channel 32-bit general PWM timer) and HRPWM (4-channel high-resolution PWM) with a minimum timing resolution of 260 ps at 120 MHz. This enables precise dead-time control and phase alignment critical for SiC/GaN inverter gate driving-details verified in Section 1.1 and Table 1.1 of R01DS0407EJ0120.

How much on-chip memory does the R5F526TACDFM#10 include, and what are its key attributes?

The R5F526TACDFM#10 includes 512 KB of code flash memory (dual-bank structure, background programming), 64 KB of SRAM (120 MHz no-wait access), and 16 KB of reprogrammable data flash (rated for 100,000 erase/write cycles). These values are specified in Table 1.1 of the R01DS0407EJ0120 datasheet and enable robust firmware updates and real-time data logging in safety-critical motor control applications.

Is the R5F526TACDFM#10 qualified for IEC60730 functional safety compliance?

Yes, the R5F526TACDFM#10 includes multiple hardware features supporting IEC60730 Class B compliance: oscillation-stop detection, self-diagnostic A/D converter, RAM test assist (DOC), CRC calculator (CRCA), register write protection, and independent watchdog timer (IWDTa) with window function. These are explicitly listed under "Useful functions for IEC60730 compliance" in the R01DS0407EJ0120 datasheet.