Renesas R5F526TBCDFM#30

Overview

R5F526TBCDFM#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 code 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 R5F526TBCDFM#30 datasheet, R5F526TBCDFM#30 pinout, R5F526TBCDFM#30 application, or R5F526TBCDFM#30 equivalent, this MCU delivers deterministic real-time motor control with IEC60730-compliant safety features, on-chip FPU, Trusted Secure IP Lite encryption, and simultaneous sampling across three 12-bit A/D units - critical for field-oriented control (FOC) and sensorless BLDC drive designs.

Technical Context

The R5F526TBCDFM#30 implements the RXv3 CPU core with single-cycle instruction execution, 113 instructions, IEEE 754-compliant single-precision FPU, and collective register bank save for fast context switching in interrupt-heavy motor control loops. Its clock system supports PLL-synthesized 120 MHz ICLK with independent PCLKA/PCLKC domains enabling concurrent high-speed peripheral operation - including GPTWa timers at 120 MHz and HRPWM reference clocks synchronized to PCLKC.

It integrates dual-bank flash for safe firmware updates during runtime, 16 KB data flash rated for 100,000 erase/write cycles, and safety-critical peripherals including oscillation-stop detection, RAM test assistance via DOC, CRCA, and register write protection - all aligned with IEC60730 Class B requirements for household and industrial appliances.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin Low-Profile Quad Flat Package (LFQFP), 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 R5F526TBCDFM#30, the R5F526TADFM#30 reduces package size and memory for simpler applications, while the R5F566TEBDFP#30 extends computational headroom and memory for advanced motion algorithms - both retain identical peripheral sets and safety architecture but differ in scalability and thermal envelope.

Availability

R5F526TBCDFM#30 is available at Aetrix Electronics and suitable for industrial motor drives, home appliance inverters, and automotive auxiliary systems requiring stable component supply, long-term lifecycle support, and traceable sourcing for production ramp-up.

Supply support for R5F526TBCDFM#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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets, with deep expertise in microcontrollers, analog, and power devices.

The RX26T Group is designed specifically for high-precision motor control in inverters and industrial drives, integrating hardware-accelerated PWM, synchronized analog capture, and IEC60730 safety features into a single 32-bit MCU platform.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TBCDFM#30?

The R5F526TBCDFM#30 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, 113-instruction set, and optimized pipeline - enabling deterministic real-time response for motor control loops. The R5F526TBCDFM#30 sustains full 120 MHz operation across code flash, SRAM, and peripheral clocks without wait states.

Does the R5F526TBCDFM#30 support CAN FD, and what standard does it comply with?

Yes, the R5F526TBCDFM#30 integrates one CAN FD module compliant with ISO11898-1:2015, supporting both standard and extended frames at data rates up to 5 Mbps. It provides full protocol handling including bit rate switching, CRC calculation, and error confinement - making the R5F526TBCDFM#30 suitable for high-bandwidth motor diagnostics and distributed inverter control networks.

How many A/D converter channels does the R5F526TBCDFM#30 support, and what is their synchronization capability?

The R5F526TBCDFM#30 supports 22 total 12-bit A/D channels across three S12ADH units (4+4+14), with hardware-synchronized sampling across all units via shared ADTRG triggers. This allows simultaneous voltage/current sensing for field-oriented control without phase skew - a capability confirmed in the R01DS0407EJ0120 datasheet for products with 64 KB SRAM like the R5F526TBCDFM#30.

What is the resolution and application of the HRPWM in the R5F526TBCDFM#30?

The R5F526TBCDFM#30 features four-channel High-Resolution PWM (HRPWM) with a minimum timing resolution of 260 ps at 120 MHz operation. This enables precise dead-time control and phase alignment in 3-phase/5-phase inverter gate drivers - critical for minimizing shoot-through current and optimizing efficiency in high-frequency motor drives. The HRPWM operates on GPTW0–GPTW3 outputs and is validated in the RX26T datasheet Section 1.1.

Is the R5F526TBCDFM#30 qualified for IEC60730 compliance, and which safety features does it include?

Yes, the R5F526TBCDFM#30 includes dedicated hardware features for IEC60730 Class B compliance: oscillation-stop detection, A/D disconnection check, clock accuracy measurement, independent watchdog timer (IWDT) with window function, RAM test assistance via DOC, CRCA, and register write protection. These are documented in the R01DS0407EJ0120 datasheet and enable self-diagnostic routines required for household and industrial appliance certification - confirming the R5F526TBCDFM#30's suitability for safety-critical motor control.