Renesas R5F526TFBDFP#50

Overview

R5F526TFBDFP#50 from Renesas is a 32-bit RXv3 microcontroller optimized for motor control and industrial inverter applications, operating at up to 120 MHz with 709 CoreMark performance, integrated 512 KB code flash, 64 KB SRAM, 16 KB data flash, and hardware-accelerated 3-phase PWM generation with 260 ps timing resolution.

For engineers reviewing the R5F526TFBDFP#50 datasheet, R5F526TFBDFP#50 pinout, R5F526TFBDFP#50 application, or R5F526TFBDFP#50 equivalent, key selection criteria include CAN FD interface compliance, simultaneous sampling across three 12-bit A/D units, IEC60730 safety features, on-chip FPU, and support for 3-phase/5-phase complementary PWM waveforms in motor drive topologies.

Technical Context

The R5F526TFBDFP#50 implements the RXv3 CPU core with single-cycle instruction execution, IEEE 754-compliant single-precision FPU, memory protection unit (MPU), and Trusted Memory (TM) for secure code execution. It integrates dual-bank flash enabling background programming and bank-swapping during operation.

Its timer subsystem combines eight 32-bit GPTWa channels, nine 16-bit MTU3d channels, and four-channel HRPWM with PCLKC-synchronized 120 MHz reference clocks - enabling precise dead-time insertion, phase-counting, and synchronous PWM start/stop across multiple outputs for inverter gate driving.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin low-profile quad flat package, 14 mm × 14 mm body, 0.5 mm pitch, exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TFBDFP#50, the R5F526TDDFK#50 offers footprint reduction at the cost of analog channel count and PWM channel depth, while the R5F566TEBDFP#50 delivers higher safety certification readiness and computational headroom for advanced observer-based control - making R5F526TFBDFP#50 optimal for cost-sensitive, high-volume industrial inverter designs requiring full feature integration in a single chip.

Availability

R5F526TFBDFP#50 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 support, and traceable sourcing for production programs.

Supply support for R5F526TFBDFP#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 R5F526TFBDFP#50 - was designed specifically for high-performance, safety-aware motor control in industrial inverters and automotive auxiliary drives, integrating hardware acceleration for real-time FOC and robust functional safety features.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TFBDFP#50?

The R5F526TFBDFP#50 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark performance under benchmark conditions. This reflects its efficient RXv3 CPU architecture with single-cycle instruction execution and integrated FPU - critical for executing complex motor control algorithms within tight timing budgets. The R5F526TFBDFP#50 sustains this performance with no wait states across its 512 KB flash and 64 KB SRAM.

Does the R5F526TFBDFP#50 support CAN FD, and what standard does it comply with?

Yes, the R5F526TFBDFP#50 integrates a CAN FD module compliant with ISO 11898-1:2015, supporting both standard and extended frames with data rates up to 5 Mbps. It enables high-bandwidth diagnostics and parameter updates in motor control systems - essential for automotive HVAC and industrial drive commissioning. The R5F526TFBDFP#50 implements full protocol handling in hardware, reducing CPU overhead versus software-emulated CAN FD stacks.

How many A/D converter channels does the R5F526TFBDFP#50 support, and are they capable of simultaneous sampling?

The R5F526TFBDFP#50 supports 22 total 12-bit A/D channels across three independent S12ADH units: two units with 4 channels each (each featuring 3 sample-and-hold circuits), and one unit with 14 channels. Crucially, all three units support truly simultaneous sampling - enabling synchronized acquisition of three-phase motor currents without inter-channel skew. This capability is confirmed in the R01DS0407EJ0120 datasheet Section 1.1 and is a defining feature of the R5F526TFBDFP#50's motor control optimization.

What PWM resolution and complementary output capabilities does the R5F526TFBDFP#50 provide?

The R5F526TFBDFP#50 delivers 260 ps minimum timing resolution via its 4-channel HRPWM peripheral, synchronized to its 32-bit GPTWa timers. It supports single-phase (10 outputs), 3-phase (3 outputs), and 5-phase (2 outputs) complementary PWM modes with hardware-dead-time insertion and non-overlap enforcement. These features are explicitly documented for the R5F526TFBDFP#50 in the RX26T datasheet Section 1.1 and enable precise gate driver control in IGBT/SiC inverter stages without external logic.

Is the R5F526TFBDFP#50 qualified for IEC60730 safety compliance, and which features support it?

Yes, the R5F526TFBDFP#50 includes dedicated hardware features for IEC60730 Class B and C compliance, including oscillation-stop detection, A/D disconnection detection, clock accuracy measurement, independent watchdog timer (IWDTa), RAM test assist (DOC), and CRC calculator (CRCA). These are not generic MCU features but are explicitly implemented and validated for the R5F526TFBDFP#50 per Renesas' safety manual R01UM0577EJ0100. The R5F526TFBDFP#50 also supports register write protection to prevent unintended configuration changes during fault conditions.