Renesas R5F526TBBGFM#30

Overview

R5F526TBBGFM#30 from Renesas is a 32-bit RXv3 microcontroller optimized for motor control and industrial inverter applications, featuring 120 MHz operation, 512 KB on-chip flash, 64 KB SRAM, 16 KB data flash, integrated CAN FD interface, and hardware-accelerated 3-phase/5-phase complementary PWM generation with 260 ps timing resolution.

For engineers reviewing the R5F526TBBGFM#30 datasheet, R5F526TBBGFM#30 pinout, R5F526TBBGFM#30 application, or R5F526TBBGFM#30 equivalent, key selection criteria include its dual-bank flash architecture enabling background programming, IEC60730-compliant safety features (oscillation-stop detection, RAM test assist, CRC), and dedicated HRPWM circuit for precise gate drive timing in BLDC/PMSM inverters.

Technical Context

The R5F526TBBGFM#30 implements the RXv3 CPU core with single-cycle instruction execution, IEEE 754-compliant single-precision FPU, and 16-register bank save for fast context switching-critical for real-time motor control loops. Its clock system supports independent PCLKA (up to 120 MHz), PCLKC (up to 120 MHz for timer reference), and PCLKD (up to 60 MHz for ADC) domains, enabling concurrent high-speed PWM generation and analog acquisition without bus contention.

Hardware safety is embedded at the silicon level: the MPU enforces eight configurable memory protection regions; Trusted Memory (TM) prevents code readout from designated flash areas; and register write protection safeguards critical control registers against runaway code. The device integrates dedicated peripherals-including MTU3d for 3-phase PWM with automatic dead-time insertion and GPTWa with synchronous start/stop across 8 channels-to eliminate software overhead in multi-axis motor drives.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B (100-pin LQFP, 14 × 14 mm, 0.5 mm pitch). Pin count and I/O configuration match the 100-pin variant of the RX26T Group: 82 general-purpose I/O pins (5-V tolerant, open-drain, pull-up enabled), 2 dedicated 5-V tolerant inputs, 15 large-current output pins, and dedicated signal groups for MTU/GPTW waveform outputs, CAN FD transceiver, and analog subsystems.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TBBGFM#30, the R5F526TADGFM#30 offers cost and size reduction at the expense of flash flexibility and precision PWM capability, while the R5F566TEBGFM#30 delivers architectural scalability for future-proofed motor control systems-neither is pin-compatible, requiring layout changes and firmware adaptation.

Availability

R5F526TBBGFM#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, long-term lifecycle support, and traceable sourcing for safety-critical deployments.

Supply support for R5F526TBBGFM#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 specializing in microcontrollers, analog, and power management ICs for industrial, automotive, and IoT applications.

The RX26T Group, including R5F526TBBGFM#30, was designed specifically for high-performance, safety-certifiable motor control in inverters-integrating hardware-accelerated PWM, analog subsystems, and functional safety features into a single chip.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TBBGFM#30?

The R5F526TBBGFM#30 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark in benchmark testing. This performance stems from the RXv3 CPU core's single-cycle instruction execution, collective register bank save function, and on-chip 32-bit multiplier/divider-enabling deterministic execution of complex motor control algorithms within tight timing constraints.

Does the R5F526TBBGFM#30 support IEC60730 functional safety certification?

Yes, the R5F526TBBGFM#30 includes multiple hardware features required for Class B IEC60730 compliance: oscillation-stoppage detection for main clock, self-diagnostic A/D converter functions, clock frequency accuracy measurement circuit, independent watchdog timer (IWDTa) with window function, RAM test-assisting function via DOC, and CRC calculator (CRCA). These are documented in the R01DS0407EJ0120 datasheet.

What package type and pin count does the R5F526TBBGFM#30 use?

The R5F526TBBGFM#30 uses the PLQP0100KB-B package: a 100-pin LQFP measuring 14 × 14 mm with 0.5 mm pitch. It provides 82 general-purpose I/O pins, 2 dedicated 5-V tolerant inputs, and dedicated signal groups for MTU3d/GPTWa PWM outputs, CAN FD transceiver, and analog subsystems-matching the full-featured variant of the RX26T Group.

How does the HRPWM module in the R5F526TBBGFM#30 improve motor control precision?

The HRPWM module in the R5F526TBBGFM#30 enables 260 ps minimum timing resolution for adjusting rising/falling edges of PWM waveforms generated by GPTW0–GPTW3. This precision allows fine-grained dead-time compensation and minimizes shoot-through risk in 3-phase inverter bridges-directly improving efficiency, reducing electromagnetic interference, and enabling smoother torque delivery in PMSM/BLDC applications.

Can the R5F526TBBGFM#30 perform simultaneous sampling across multiple analog channels?

Yes, the R5F526TBBGFM#30 supports simultaneous sampling using three independent 12-bit S12ADH units: Unit 0 (4 channels), Unit 1 (4 channels), and Unit 2 (14 channels), totaling 22 channels. Each unit includes dedicated sample-and-hold circuits, allowing concurrent acquisition of phase currents and DC-link voltage in motor control applications without time skew between channels.