Renesas R5F526TFBGFL#50

Overview

R5F526TFBGFL#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 PWM generation with dead-time control.

For engineers reviewing the R5F526TFBGFL#50 datasheet, R5F526TFBGFL#50 pinout, R5F526TFBGFL#50 application, or R5F526TFBGFL#50 equivalent, key selection considerations include its 100-pin LFQFP package, dual-bank flash for safe firmware updates, 260 ps HRPWM timing resolution, IEC60730-compliant safety features, and support for simultaneous sampling across three 12-bit A/D units.

Technical Context

The R5F526TFBGFL#50 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-enabling deterministic real-time response in motor control loops. Its clock system integrates PLL-synthesized 120 MHz ICLK, independent PCLKA/PCLKC domains for peripheral timing isolation, and dedicated IWDT oscillator for fail-safe watchdog operation.

Peripheral coordination is managed via the Event Link Controller (ELC), which enables 183 internal event signals-including MTU3d timer triggers, GPTWa compare matches, and A/D conversion starts-to initiate module actions without CPU intervention, reducing latency and power consumption during sleep-mode operation.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin low-profile quad flat package (LFQFP), 14 mm × 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 R5F526TFBGFL#50, the R5F526TDDFK#50 offers footprint reduction at the cost of ADC channel count and interface options, while the R5F566TEBDFP#30 delivers higher performance and expanded safety features for demanding servo applications - neither is pin-compatible, requiring PCB redesign.

Availability

R5F526TFBGFL#50 is available at Aetrix Electronics and suitable for industrial motor drives, home appliance inverters, PLC I/O modules, and renewable energy converters requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for R5F526TFBGFL#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 automotive, industrial, and IoT markets.

The RX26T Group, including R5F526TFBGFL#50, was engineered specifically for high-precision motor control in industrial inverters and home appliances, integrating hardware-accelerated PWM, safety-certified peripherals, and real-time deterministic execution.

FAQ

What is the maximum operating frequency and CPU architecture of the R5F526TFBGFL#50?

The R5F526TFBGFL#50 operates at a maximum frequency of 120 MHz using the 32-bit RXv3 CPU core. It achieves 709 CoreMark performance and supports single-cycle instruction execution, collective register bank save, memory protection unit (MPU), and IEEE 754-compliant single-precision floating-point unit - all essential for real-time motor control algorithms in the R5F526TFBGFL#50.

Does the R5F526TFBGFL#50 support CAN FD, and what standard does it comply with?

Yes, the R5F526TFBGFL#50 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 enables high-bandwidth diagnostics and real-time motor status reporting in industrial networks - a confirmed feature of the R5F526TFBGFL#50 per its official datasheet Rev.1.20.

What is the resolution and timing capability of the HRPWM in the R5F526TFBGFL#50?

The R5F526TFBGFL#50 features a High-Resolution PWM (HRPWM) circuit with a minimum timing resolution of 260 ps when operating at 120 MHz. This capability applies to GPTW0 through GPTW3 outputs and is used to precisely control dead-time in SiC/GaN-based inverter gate drivers - a documented specification for the R5F526TFBGFL#50.

How many A/D converter units does the R5F526TFBGFL#50 include, and what is their configuration?

The R5F526TFBGFL#50 includes three independent 12-bit S12ADH A/D converter units: Unit 0 (4 channels), Unit 1 (4 channels), and Unit 2 (14 channels), each with dedicated sample-and-hold circuits. This configuration supports simultaneous sampling across all units using a shared trigger - a confirmed feature of the R5F526TFBGFL#50 for vector control applications.

Is the R5F526TFBGFL#50 qualified for IEC60730 Class B functional safety compliance?

Yes, the R5F526TFBGFL#50 includes multiple hardware features required for IEC60730 Class B compliance: oscillation-stop detection, RAM test assist (DOC), CRC calculator (CRCA), self-diagnostic A/D disconnection detection, independent watchdog timer (IWDT), and register write protection. These are explicitly listed in the R5F526TFBGFL#50 datasheet as part of its safety support framework.