Renesas R5F526TFBGFP#50

Overview

R5F526TFBGFP#50 from Renesas is a 32-bit RXv3 core microcontroller optimized for motor control and industrial inverter applications, operating at up to 120 MHz with 709 CoreMark performance, 512 KB on-chip code flash, 64 KB SRAM, and integrated 3-phase/5-phase complementary PWM generation with 260 ps HRPWM timing resolution.

For engineers reviewing the R5F526TFBGFP#50 datasheet, R5F526TFBGFP#50 pinout, R5F526TFBGFP#50 application, or R5F526TFBGFP#50 equivalent, key selection considerations include CAN FD compliance (ISO 11898-1:2015), simultaneous sampling across three 12-bit A/D units, IEC60730 safety features, Trusted Secure IP Lite encryption, and 100-pin LFQFP package with 82 general-purpose I/O pins including 5-V tolerant inputs.

Technical Context

The R5F526TFBGFP#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. It integrates dual-bank code flash enabling background programming and startup bank swapping during operation.

Its timer subsystem combines eight 32-bit GPTWa channels, nine 16-bit MTU3d channels, and four HRPWM channels synchronized to PCLKC for sub-nanosecond PWM edge control. The S12ADH A/D converter supports simultaneous sampling across three units (4+4+14 channels) with programmable gain amplifiers and self-diagnostic functions required for IEC60730 Class B compliance.

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.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TDDFK#50, the R5F526TFBGFP#50 delivers higher PWM precision, full ADC concurrency, and larger memory for complex observer-based control; versus R5F566TEBDFP#50, it offers lower system cost and power while retaining sufficient compute for most industrial inverter applications.

Availability

R5F526TFBGFP#50 is available at Aetrix Electronics and suitable for industrial motor drives, home appliance inverters, automotive auxiliary systems, and industrial PLC I/O modules requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for R5F526TFBGFP#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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications, with over 40 years of microcontroller innovation.

The RX26T Group is designed specifically for high-performance motor control and inverter systems, integrating precision analog, deterministic PWM, safety features, and real-time communication to replace discrete analog + FPGA + MCU architectures.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TFBGFP#50?

The R5F526TFBGFP#50 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark performance. This benchmark reflects its RXv3 CPU core efficiency, including single-cycle instruction execution, 32×32→64-bit multiplier, and barrel shifter. The R5F526TFBGFP#50 sustains this performance with no wait states on its 512 KB code flash memory, enabling deterministic real-time motor control loop execution.

Does the R5F526TFBGFP#50 support CAN FD, and what standard does it comply with?

Yes, the R5F526TFBGFP#50 integrates a CAN FD module compliant with ISO 11898-1:2015 for both standard and extended frames. It supports data rates up to 5 Mbps in FD mode and includes dedicated message RAM with configurable FIFOs and filtering. The R5F526TFBGFP#50's CAN FD interface is validated for use in industrial drive feedback networks and automotive auxiliary systems requiring high-bandwidth diagnostics and control messaging.

How many A/D converter channels does the R5F526TFBGFP#50 support, and what sampling capability does it offer?

The R5F526TFBGFP#50 supports 22 total 12-bit A/D converter channels across three S12ADH units: Unit 0 (4 channels), Unit 1 (4 channels), and Unit 2 (14 channels). It enables true simultaneous sampling across all three units using independent sample-and-hold circuits - essential for capturing phase currents and DC-link voltage at identical instants in field-oriented control. The R5F526TFBGFP#50 achieves 0.9 µs minimum conversion time per channel when ADCLK runs at 60 MHz.

What PWM resolution and configurations are supported by the R5F526TFBGFP#50?

The R5F526TFBGFP#50 supports multiple PWM configurations: 10 single-phase, 3 three-phase, or 2 five-phase complementary outputs via its GPTWa and MTU3d timers. Its four-channel HRPWM circuit achieves a minimum timing resolution of 260 ps at 120 MHz - enabling precise dead-time control and reduced switching losses. The R5F526TFBGFP#50 also provides automatic dead-time insertion, synchronous counter clearing, and hardware fault response via POE3D for motor protection.

Is the R5F526TFBGFP#50 qualified for IEC60730 Class B safety compliance?

Yes, the R5F526TFBGFP#50 includes dedicated hardware features for IEC60730 Class B compliance: oscillation-stop detection, RAM test assist (DOC), CRC calculator (CRCA), register write protection, and self-diagnostic functions for A/D converter disconnection and clock accuracy. These capabilities are documented in Renesas' RX26T Functional Safety Manual (R01UM0154EJ0100) and eliminate the need for external safety monitors in certified motor control designs using the R5F526TFBGFP#50.