Renesas R5F526TFBDFN#30

Overview

R5F526TFBDFN#30 from Renesas is a 32-bit RXv3 microcontroller optimized for motor control and industrial inverter applications, featuring a 120 MHz CPU core delivering 709 CoreMark, 512 KB on-chip code flash memory with dual-bank structure, 64 KB SRAM, and integrated CAN FD interface compliant with ISO 11898-1:2015. It supports real-time PWM generation with 3-phase complementary outputs and high-resolution timing down to 260 ps for precise gate drive control in brushless DC and PMSM motor drives.

For engineers reviewing the R5F526TFBDFN#30 datasheet, R5F526TFBDFN#30 pinout, R5F526TFBDFN#30 application, or R5F526TFBDFN#30 equivalent, key selection considerations include its 100-pin LFQFP package (PLQP0100KB-B), 12-bit simultaneous-sampling ADC with three sample-and-hold units, integrated HRPWM with sub-nanosecond resolution, Trusted Secure IP Lite encryption engine, and IEC 60730 safety support features including oscillation-stop detection and RAM self-test assistance.

Technical Context

The R5F526TFBDFN#30 implements the RXv3 CPU core with single-cycle instruction execution, 16 general-purpose 32-bit registers, and hardware FPU supporting IEEE 754 single-precision arithmetic. Its clock system integrates an 8–24 MHz external crystal oscillator, internal 240 kHz LOCO and selectable 16/18/20 MHz HOCO, and PLL for generating up to 120 MHz ICLK while maintaining independent peripheral clocks (PCLKA/PCLKC up to 120 MHz, PCLKB/PCLKD up to 60 MHz).

Motor control capability is enabled by tightly coupled peripherals: GPTWa (32-bit × 8 channels) and MTU3d (16-bit × 9 channels) support synchronous PWM generation with dead-time insertion, phase-counting, and A/D trigger synchronization; HRPWM extends timing resolution to 260 ps for fine-grained waveform shaping; ELC allows event-driven inter-module coordination without CPU intervention during sleep modes.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin Low-profile Quad Flat Package, 14 mm × 14 mm body, 0.5 mm lead pitch, exposed thermal pad, RoHS-compliant, rated for –40°C to +85°C operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TDDFK#30 and R5F523T5DDFK#30, the R5F526TFBDFN#30 delivers higher computational throughput, finer PWM timing control, broader analog acquisition capability, and certified safety/security features essential for industrial-grade inverter designs.

Availability

R5F526TFBDFN#30 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 across extended product lifecycles.

Supply support for R5F526TFBDFN#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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX26T Group, including R5F526TFBDFN#30, was designed specifically for high-performance motor control applications demanding real-time responsiveness, functional safety, and integrated analog/motor interface peripherals.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TFBDFN#30?

The R5F526TFBDFN#30 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark in benchmark testing. This performance level is enabled by the RXv3 CPU core's single-cycle instruction execution, 16 general-purpose 32-bit registers, and efficient pipeline architecture. The R5F526TFBDFN#30 sustains this speed across all memory accesses due to its 120 MHz no-wait flash and SRAM interfaces.

Does the R5F526TFBDFN#30 support CAN FD, and which standard does it comply with?

Yes, the R5F526TFBDFN#30 integrates a CAN FD module compliant with ISO 11898-1:2015, supporting both standard and extended frames with bit rates up to 5 Mbps in the data phase. It includes dedicated message RAM, flexible filtering, and error counters, making the R5F526TFBDFN#30 suitable for real-time diagnostics and networked motor control in industrial and automotive environments.

What ADC configuration does the R5F526TFBDFN#30 provide, and how many simultaneous sampling channels are supported?

The R5F526TFBDFN#30 includes the S12ADH 12-bit A/D converter with three independent sample-and-hold units: Unit 0 (4 channels), Unit 1 (4 channels), and Unit 2 (14 channels), totaling 22 configurable inputs. It supports true simultaneous sampling across all three units, enabling coordinated acquisition of motor phase currents and DC-link voltage without timing skew-critical for accurate FOC implementation in the R5F526TFBDFN#30.

What is the resolution and application of the High-Resolution PWM (HRPWM) in the R5F526TFBDFN#30?

The R5F526TFBDFN#30 features four HRPWM channels capable of controlling the rising/falling edges of GPTW0–GPTW3 outputs with a minimum resolution of 260 ps at 120 MHz operation. This enables precise dead-time tuning for SiC and GaN power stages, minimizing shoot-through risk while maximizing efficiency-making the HRPWM functionality central to high-frequency inverter designs using the R5F526TFBDFN#30.

Which safety and security features are integrated into the R5F526TFBDFN#30 for IEC 60730 compliance?

The R5F526TFBDFN#30 includes multiple IEC 60730 Class B support features: oscillation-stoppage detection, A/D converter disconnection detection, clock frequency accuracy measurement circuit, independent watchdog timer (IWDTa), RAM test-assisting function via DOC, CRC calculator (CRCA), and register write protection. These features are implemented in hardware and documented in Renesas' safety manual, directly supporting certification efforts for the R5F526TFBDFN#30 in safety-critical motor control applications.