Renesas R5F526TBBDNE#30

Overview

R5F526TBBDNE#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 high-resolution PWM with 260 ps timing resolution. It supports IEC60730 safety compliance and includes Trusted Secure IP Lite encryption.

For engineers reviewing the R5F526TBBDNE#30 datasheet, R5F526TBBDNE#30 pinout, R5F526TBBDNE#30 application, or R5F526TBBDNE#30 equivalent, key selection criteria include its 100-pin LQFP package, dual-bank flash for safe firmware updates, simultaneous sampling across three 12-bit ADC units, 3-phase/5-phase complementary PWM capability, and hardware-accelerated trigonometric functions (TFUv2) for real-time motor vector control.

Technical Context

The R5F526TBBDNE#30 implements the RXv3 CPU core with single-cycle instruction execution, IEEE 754-compliant single-precision FPU, and collective register bank save for fast context switching-critical for deterministic motor control loops. Its clock system integrates PLL, HOCO (16/18/20 MHz), LOCO (240 kHz), and IWDT-dedicated 120 kHz oscillator, enabling precise timing separation between CPU (ICLK @ 120 MHz), peripheral modules (PCLKA @ 120 MHz), and ADC (ADCLK @ 60 MHz).

Peripheral integration centers on motor control: GPTWa (8-channel 32-bit timer) and MTU3d (9-channel 16-bit timer) provide synchronized PWM generation, dead-time insertion, and phase-counting; HRPWM extends GPTW0–GPTW3 output resolution to 260 ps; S12ADH ADC supports simultaneous sampling across three units (4+4+14 channels); and ELC enables interrupt-free inter-module event chaining (e.g., timer-triggered ADC start).

Key Specifications

Pinout & Package

R5F526TBBDNE#30 is housed in a 100-pin LQFP package (PLQP0100KB-B, 14 × 14 mm, 0.5 mm pitch) with 82 general-purpose I/O pins, 2× 5-V tolerant inputs, 15 high-current outputs, and dedicated pins for CAN FD, GPTW/HRPWM waveform outputs, ADC analog inputs, and debug (JTAG/FINE).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TBBDNE#30, the R5F526TBBDFP#30 offers identical functionality in a smaller package but sacrifices ADC flexibility and I/O count, while the R5F523T5DDFK#30 provides a lower-cost, lower-performance alternative lacking HRPWM, TFUv2, and CAN FD-making it unsuitable for next-generation high-efficiency or safety-certified drives.

Availability

R5F526TBBDNE#30 is available at Aetrix Electronics and suitable for industrial motor drives, automotive EPS systems, home appliance inverters, and PLC I/O modules requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for R5F526TBBDNE#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 R5F526TBBDNE#30, was designed specifically for high-performance, safety-compliant motor control in industrial inverters and automotive electric power steering systems.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TBBDNE#30?

The R5F526TBBDNE#30 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark in benchmark testing. This performance level is enabled by the RXv3 CPU core's single-cycle instruction execution, 32-bit multiplier/divider, and barrel shifter - all critical for executing complex motor control algorithms such as field-oriented control (FOC) within tight timing constraints. The R5F526TBBDNE#30 maintains this speed across its full 512 KB flash and 64 KB SRAM with zero wait states.

Does the R5F526TBBDNE#30 support IEC60730 Class B safety certification?

Yes, the R5F526TBBDNE#30 includes multiple hardware features required for IEC60730 Class B compliance: oscillation-stop detection for main clock, self-diagnostic functions for ADC (including analog input disconnection detection), RAM test assist via DOC, CRC calculator (CRCA), register write protection, and independent watchdog timer (IWDTa) with window function. These capabilities are documented in the R01DS0407EJ0120 datasheet and enable streamlined safety certification for motor drive applications. The R5F526TBBDNE#30 implements these features without external components.

What ADC configuration does the R5F526TBBDNE#30 support, and how many simultaneous sampling channels are available?

The R5F526TBBDNE#30 supports three independent 12-bit S12ADH units: Unit 0 (4 channels with 3 sample-and-hold circuits), Unit 1 (4 channels with 3 sample-and-hold circuits), and Unit 2 (14 channels). This configuration enables true simultaneous sampling across up to 12 analog inputs - for example, three phase currents and DC-link voltage - which is essential for accurate space-vector modulation in 3-phase inverters. The R5F526TBBDNE#30 achieves a minimum conversion time of 0.9 µs per channel when ADCLK runs at 60 MHz.

What is the role of the Event Link Controller (ELC) in the R5F526TBBDNE#30, and how does it improve motor control performance?

The Event Link Controller (ELC) in the R5F526TBBDNE#30 allows 183 internal peripheral events - such as GPTWa timer overflow, MTU3d compare match, or ADC end-of-conversion - to trigger actions in other modules without CPU intervention. For example, a GPTWa PWM period match can directly initiate an ADC conversion and trigger a DMACA transfer of results to SRAM. This eliminates interrupt latency and jitter, enabling deterministic sub-microsecond timing in motor control loops. The R5F526TBBDNE#30 uses ELC to synchronize PWM, ADC, and DMA operations autonomously.

What package type and pin count does the R5F526TBBDNE#30 use, and what are its key mechanical specifications?

The R5F526TBBDNE#30 uses a 100-pin LQFP package designated PLQP0100KB-B, measuring 14 × 14 mm with 0.5 mm pin pitch. It provides 82 general-purpose I/O pins, 2× 5-V tolerant inputs, 15 high-current outputs, and dedicated signal groups for CAN FD, high-resolution PWM, analog inputs, and JTAG/FINE debug. This package is RoHS-compliant and rated for operation from –40°C to +85°C (D-version), making it suitable for industrial environments. The R5F526TBBDNE#30 requires standard LQFP reflow profiles and PCB layout per Renesas AN1900.