Renesas R5F526TBBDFM#50

Overview

R5F526TBBDFM#50 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, 16 KB data flash (100,000 write cycles), and integrated CAN FD interface compliant with ISO 11898-1:2015.

For engineers reviewing the R5F526TBBDFM#50 datasheet, R5F526TBBDFM#50 pinout, R5F526TBBDFM#50 application, or R5F526TBBDFM#50 equivalent, key selection criteria include its 3-phase/5-phase complementary PWM capability, 260 ps HRPWM timing resolution, IEC60730 safety support, AES-128/256 encryption, and 100-pin LFQFP package with 82 general-purpose I/O pins including 5-V tolerant inputs.

Technical Context

The R5F526TBBDFM#50 implements the RXv3 CPU core with single-cycle instruction execution, 113 instructions, IEEE 754-compliant single-precision FPU, and collective register bank save function supporting 16 banks. Its clock system integrates PLL with 8–24 MHz external crystal reference, internal 240-kHz LOCO and selectable 16/18/20 MHz HOCO, and dedicated 120-kHz IWDT oscillator.

Peripheral architecture features event-driven operation via ELC (183 internal signals), synchronized timer operation across PCLKA/PCLKC domains, and safety-critical functions including MPU, Trusted Memory (TM), CRC calculator (CRCA), oscillation-stop detection, and RAM test-assisting function by DOC - all aligned to IEC60730 Class B compliance requirements.

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.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TBBDFM#50, the R5F526TADFM#50 reduces package size and memory but sacrifices HRPWM precision and multi-unit ADC concurrency, while the R5F566TEBDFM#50 extends performance into servo-class applications with higher clock speed, larger memory, and additional connectivity - making R5F526TBBDFM#50 the optimal balance for mainstream inverter designs needing IEC60730 compliance and 3-phase PWM fidelity.

Availability

R5F526TBBDFM#50 is available at Aetrix Electronics and suitable for industrial motor drives, home appliance inverters, automotive auxiliary systems, and PLC I/O modules requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F526TBBDFM#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and IoT applications.

The RX26T Group, including R5F526TBBDFM#50, was designed specifically for high-efficiency motor control in inverters and industrial drives, integrating precision PWM, safety-certified peripherals, and real-time processing capabilities.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TBBDFM#50?

The R5F526TBBDFM#50 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark in benchmark testing. This performance stems from its RXv3 CPU core with single-cycle instruction execution, 32-bit multiplier/divider, and barrel shifter - all validated under the conditions specified in the R01DS0407EJ0120 datasheet Rev.1.20. The R5F526TBBDFM#50 maintains this speed across its full 2.7–5.5 V supply range.

Does the R5F526TBBDFM#50 support IEC60730 Class B compliance out of the box?

Yes, the R5F526TBBDFM#50 includes hardware features required for IEC60730 Class B certification: oscillation-stop detection, A/D converter self-test and disconnection detection, RAM test-assisting function via DOC, register write protection, CRC calculator (CRCA), and independent watchdog timer (IWDTa) with windowing. These are documented in the R01DS0407EJ0120 datasheet and do not require external components to implement baseline safety checks for the R5F526TBBDFM#50.

What PWM resolution does the R5F526TBBDFM#50 achieve with its HRPWM feature?

The R5F526TBBDFM#50 achieves a minimum PWM edge placement resolution of 260 ps using its High-Resolution PWM (HRPWM) circuit, which operates in conjunction with GPTW0–GPTW3 timers at 120 MHz. This resolution is measured and guaranteed per the R01DS0407EJ0120 datasheet Rev.1.20 and enables precise timing control for advanced motor control algorithms such as predictive current control and harmonic injection in the R5F526TBBDFM#50.

How many analog-to-digital converter channels does the R5F526TBBDFM#50 support, and what is their configuration?

The R5F526TBBDFM#50 supports 22 total 12-bit ADC channels across three units: Unit 0 (4 channels), Unit 1 (4 channels), and Unit 2 (14 channels). Units 0 and 1 each include three dedicated sample-and-hold circuits, enabling true simultaneous sampling of up to six analog signals - critical for three-shunt current reconstruction in motor control. This configuration is confirmed for the 64 KB RAM variant in the R5F526TBBDFM#50 datasheet.

What package type and pin count does the R5F526TBBDFM#50 use?

The R5F526TBBDFM#50 uses a 100-pin Low-Profile Quad Flat Package (LFQFP) designated PLQP0100KB-B, measuring 14 mm × 14 mm with 0.5 mm lead pitch and an exposed thermal pad. It provides 82 general-purpose I/O pins, including two 5-V tolerant inputs and 15 high-drive outputs - as specified in Table 1.2 of the R01DS0407EJ0120 datasheet Rev.1.20 for the 100-pin RX26T variants like the R5F526TBBDFM#50.