Renesas R5F526TBBGNE#30

Overview

R5F526TBBGNE#30 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, 512 KB on-chip flash, 64 KB SRAM, and integrated CAN FD, high-resolution PWM (260 ps min. resolution), and dual-bank flash for safe firmware updates.

For engineers reviewing the R5F526TBBGNE#30 datasheet, R5F526TBBGNE#30 pinout, R5F526TBBGNE#30 application, or R5F526TBBGNE#30 equivalent, this MCU delivers deterministic real-time control for 3-phase and 5-phase motor drives, supports IEC60730 safety compliance via hardware self-test features, and integrates Trusted Secure IP Lite for AES-128/256 encryption and true random number generation.

Technical Context

The R5F526TBBGNE#30 implements the RXv3 CPU core with single-cycle instruction execution, 16 general-purpose 32-bit registers, and IEEE 754-compliant single-precision FPU. It supports little-endian data arrangement and includes a collective register bank save function for fast context switching in interrupt-heavy motor control loops.

Its clock system combines an 8–24 MHz external crystal oscillator with PLL synthesis for 120 MHz ICLK, plus independent 240 kHz LOCO and 120 kHz IWDT-dedicated oscillators. Peripheral clocks are decoupled: PCLKA (up to 120 MHz) drives MTU3d, GPTWa, and CAN FD; PCLKC (up to 120 MHz) serves HRPWM and timer reference clocks; PCLKD (up to 60 MHz) feeds the 12-bit S12ADH ADC.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin Low-Profile Quad Flat Package, 14 × 14 mm body, 0.5 mm pitch, lead-free, RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TBBGNE#30, the R5F526TBDGNE#30 offers identical functionality at lower thermal grade, while the R5F523T5DDFK#30 reduces memory, PWM precision, and safety features to meet entry-level motor control cost targets-neither is pin-compatible, requiring PCB redesign.

Availability

R5F526TBBGNE#30 is available at Aetrix Electronics and suitable for industrial motor drives, EV onboard chargers, home appliance inverters, and PLC I/O modules requiring stable component supply, long-term lifecycle support, and automotive-grade temperature resilience.

Supply support for R5F526TBBGNE#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, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX26T Group, including R5F526TBBGNE#30, was designed specifically for high-performance, safety-certifiable motor control in industrial inverters and appliance drives-integrating precision PWM, synchronized analog capture, and hardware safety accelerators.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TBBGNE#30?

The R5F526TBBGNE#30 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark performance. This benchmark reflects its RXv3 CPU core's efficient instruction pipeline and single-cycle execution capability. The R5F526TBBGNE#30 sustains full 120 MHz operation across all peripherals-including GPTWa timers, MTU3d, and CAN FD-without wait states, enabling deterministic real-time motor control loops.

Does the R5F526TBBGNE#30 support CAN FD, and what standard does it comply with?

Yes, the R5F526TBBGNE#30 integrates a CAN FD module compliant with ISO 11898-1:2015, supporting both standard and extended frames. It enables data rates up to 5 Mbps in FD mode for high-bandwidth inverter telemetry and diagnostics. The R5F526TBBGNE#30 implements hardware CRC, bit stuffing, and error confinement-ensuring robust communication in noisy industrial environments without CPU overhead.

What analog peripherals are included in the R5F526TBBGNE#30, and how are they configured for motor control?

The R5F526TBBGNE#30 includes three 12-bit S12ADH ADC units (4+4+14 channels), six CMPCa comparators, and two R12DAb DAC channels. For motor control, ADC units are synchronized via GPTWa or MTU3d triggers to sample all three phase currents simultaneously. The DACs provide programmable reference voltages for comparator-based overcurrent detection, and the comparators feed directly into POE3D for hardware-fast shutdown-bypassing software latency entirely.

How does the HRPWM feature of the R5F526TBBGNE#30 improve motor drive performance?

The R5F526TBBGNE#30's HRPWM circuit delivers 260 ps minimum timing resolution on GPTWa outputs-enabling precise dead-time insertion down to 1 ns increments. This eliminates shoot-through risk in high-frequency SiC/GaN inverter stages while maintaining optimal duty-cycle fidelity. The R5F526TBBGNE#30 applies HRPWM correction dynamically during runtime, allowing adaptive dead-time adjustment based on temperature and load conditions without sacrificing PWM carrier frequency.

Is the R5F526TBBGNE#30 qualified for IEC60730 Class B compliance, and which hardware features support it?

Yes, the R5F526TBBGNE#30 includes dedicated hardware for IEC60730 Class B compliance: oscillation-stop detection, CRCA for memory/data integrity, DOC-assisted RAM testing, A/D disconnection monitoring, and register write protection. These features execute autonomously-reducing software certification effort by offloading critical self-tests from firmware. The R5F526TBBGNE#30's Trusted Memory (TM) and MPU further enforce secure, verified boot and runtime memory partitioning.