Renesas R5F526TBDDND#30

Overview

R5F526TBDDND#30 from Renesas is a 32-bit RXv3 microcontroller optimized for motor control and industrial inverter applications, featuring a 120 MHz CPU core, 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 dead-time control.

For engineers reviewing the R5F526TBDDND#30 datasheet, R5F526TBDDND#30 pinout, R5F526TBDDND#30 application, or R5F526TBDDND#30 equivalent, key selection criteria include its 120 MHz real-time PWM timing resolution (260 ps minimum), dual-bank flash for safe firmware updates, IEC60730-compliant safety features including oscillation-stop detection and RAM test assistance, and support for simultaneous sampling across three 12-bit A/D units.

Technical Context

The R5F526TBDDND#30 implements the RXv3 CPU core with single-cycle instruction execution, 113 instructions, and optional single-precision FPU compliant with IEEE754. It integrates dedicated motor control peripherals including GPTWa (32-bit × 8 channels), MTU3d (16-bit × 9 channels), HRPWM (4 channels with 260 ps resolution), and POE3D for output pin fault protection.

Clock architecture supports independent domain scaling: ICLK up to 120 MHz for CPU, PCLKA up to 120 MHz for timers and CAN FD, PCLKC up to 120 MHz for PWM reference clocks, and PCLKD up to 60 MHz for A/D conversion. Safety functions include MPU, Trusted Memory (TM), register write protection, CRCA, and IWDT with windowed refresh.

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, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TBDDND#30, R5F526TADDFP#30 reduces package size and memory but retains core motor control IP; R5F566TEBDFP#30 delivers higher PWM resolution and computational throughput at the cost of increased power and toolchain migration effort.

Availability

R5F526TBDDND#30 is available at Aetrix Electronics and suitable for industrial motor drives, home appliance inverters, automotive auxiliary systems, and PLC motion control applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F526TBDDND#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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The RX26T Group-including R5F526TBDDND#30-is designed specifically for high-efficiency, high-reliability motor control in inverters, targeting applications demanding real-time PWM precision, integrated safety, and compact system integration.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TBDDND#30?

The R5F526TBDDND#30 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark points under benchmark conditions. This performance stems from the RXv3 CPU core's single-cycle instruction execution, collective register bank save function, and optimized memory subsystem enabling no-wait access to both 512 KB flash and 64 KB SRAM at full speed. The R5F526TBDDND#30 maintains this throughput while running motor control algorithms with minimal interrupt latency.

Does the R5F526TBDDND#30 support IEC60730 Class B compliance out of the box?

Yes, the R5F526TBDDND#30 includes dedicated hardware features required for IEC60730 Class B compliance: oscillation-stop detection for main clock failure, self-diagnostic A/D converter functions, RAM test assistance via DOC, independent watchdog timer (IWDT) with windowing, CRC calculator (CRCA), and register write protection. These capabilities are documented in the R01DS0407EJ0120 datasheet and require no external components to implement certified safety routines. The R5F526TBDDND#30 leverages these to reduce software validation burden.

What PWM resolution does the R5F526TBDDND#30 achieve, and how is it implemented?

The R5F526TBDDND#30 achieves a minimum PWM timing resolution of 260 ps using its High-Resolution PWM (HRPWM) module, which fine-tunes the edge placement of waveforms generated by GPTW0–GPTW3. This resolution is realized at 120 MHz operation by leveraging internal PCLKC-synchronized counter logic with sub-cycle interpolation. The R5F526TBDDND#30 uses this capability to generate precise dead times and phase shifts essential for minimizing torque ripple in PMSM/BLDC motor drives.

How many A/D converter channels does the R5F526TBDDND#30 support, and what sampling configurations are available?

The R5F526TBDDND#30 supports 22 total A/D input channels across three 12-bit S12ADH units: Unit 0 (4 channels), Unit 1 (4 channels), and Unit 2 (14 channels). It enables simultaneous sampling across all three units using hardware triggers from MTU3d or GPTWa, critical for vector control. Each unit includes dedicated sample-and-hold circuits-Unit 0 and Unit 1 each have three, allowing concurrent acquisition of current, voltage, and temperature signals. The R5F526TBDDND#30 also supports group scan mode with priority control for multi-signal acquisition sequencing.

What package type and pin count does the R5F526TBDDND#30 use, and is it RoHS-compliant?

The R5F526TBDDND#30 uses the PLQP0100KB-B package: a 100-pin Low-Profile Quad Flat Package with 14 mm × 14 mm body size, 0.5 mm lead pitch, and exposed thermal pad. It is fully RoHS-compliant and designed for reflow soldering per JEDEC J-STD-020. This package provides dedicated pins for motor control peripherals-including 18 MTU3d waveform outputs, 8 GPTWa outputs, 6 comparator inputs, and CAN FD differential pairs-ensuring signal integrity in noisy inverter environments. The R5F526TBDDND#30's pin layout separates analog and digital grounds to minimize coupling.