Renesas R5F526TBCDFP#10

Overview

R5F526TBCDFP#10 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 operates across –40°C to +85°C.

For engineers reviewing the R5F526TBCDFP#10 datasheet, R5F526TBCDFP#10 pinout, R5F526TBCDFP#10 application, or R5F526TBCDFP#10 equivalent, key selection criteria include its 100-pin LFQFP package, dual-bank flash architecture enabling background programming, simultaneous sampling across three 12-bit A/D units, and hardware-accelerated trigonometric functions (TFUv2) for real-time motor vector control.

Technical Context

The R5F526TBCDFP#10 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 deterministic motor control loops. Its clock system integrates PLL, HOCO (16/18/20 MHz), LOCO (240 kHz), and IWDT-dedicated 120 kHz oscillator, enabling independent domain clocking (ICLK up to 120 MHz, PCLKA up to 120 MHz, PCLKB up to 60 MHz).

Peripheral integration centers on precision timing: GPTWa (32-bit × 8 channels) and MTU3d (16-bit × 9 channels) support complementary PWM for 3-phase inverters with automatic dead-time insertion, while HRPWM refines edge placement to ±260 ps. The ELC enables CPU-free inter-module event chaining-e.g., MTU trigger → A/D conversion start → CRCA checksum → DTC transfer-reducing interrupt latency in safety-critical sequences.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin Low-Profile Quad Flat Package, 14 × 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 R5F526TBCDFP#10, R5F526TADFP#30 offers smaller size and lower cost at the expense of CAN FD and simultaneous triple A/D sampling, while R5F566TEBDFP#30 delivers greater processing bandwidth and memory but requires additional safety qualification effort for IEC60730 deployment.

Availability

R5F526TBCDFP#10 is available at Aetrix Electronics and suitable for industrial motor drives, home appliance inverters, PLC I/O modules, and EV onboard chargers requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for R5F526TBCDFP#10 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 over 40 years of MCU innovation.

The RX26T Group is designed specifically for high-efficiency motor control in industrial and consumer inverters, integrating precision PWM, safety features, and real-time computation to replace discrete analog/motor control ICs with a single programmable solution.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TBCDFP#10?

The R5F526TBCDFP#10 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, on-chip FPU, and zero-wait-state 512 KB flash memory. The R5F526TBCDFP#10 sustains this speed across full memory and peripheral operation, making it suitable for demanding real-time motor control algorithms.

Does the R5F526TBCDFP#10 support IEC60730 safety compliance out of the box?

Yes, the R5F526TBCDFP#10 includes dedicated hardware features required for IEC60730 Class B compliance: oscillation-stop detection, independent watchdog timer (IWDTa) with window function, memory protection unit (MPU), register write protection, CRCA for data integrity, and self-diagnostic A/D disconnection detection. These are documented in the R01DS0407EJ0120 datasheet and require no external components to implement basic safety monitoring in the R5F526TBCDFP#10.

What package type and pin count does the R5F526TBCDFP#10 use?

The R5F526TBCDFP#10 uses a 100-pin Low-Profile Quad Flat Package (LFQFP) designated PLQP0100KB-B, measuring 14 × 14 mm with 0.5 mm pitch and an exposed thermal pad. It provides 82 general-purpose I/O pins, including 2 with 5-V tolerance and 15 with large-current drive capability-optimized for direct connection to gate drivers and sensors in motor control systems.

How many A/D converter channels and sample-and-hold units does the R5F526TBCDFP#10 support?

The R5F526TBCDFP#10 integrates three 12-bit S12ADH A/D converter units: Unit 0 (4 channels, 3 sample-and-hold circuits), Unit 1 (4 channels, 3 sample-and-hold circuits), and Unit 2 (14 channels). This configuration enables true simultaneous sampling across all 22 channels-critical for capturing instantaneous phase voltages and currents in 3-phase motor control without time skew. The R5F526TBCDFP#10 supports 0.9 µs minimum conversion time per channel at 60 MHz ADCLK.

What is the role of the Event Link Controller (ELC) in the R5F526TBCDFP#10?

The Event Link Controller (ELC) in the R5F526TBCDFP#10 enables direct hardware-level interconnection between 183 internal peripheral events-such as MTU overflow, GPTW compare match, or A/D conversion completion-without CPU intervention. For example, an MTU timer event can directly trigger A/D conversion start, followed by CRCA checksum generation and DMACA data transfer, forming a deterministic, low-latency signal chain. This reduces interrupt overhead and improves real-time responsiveness in the R5F526TBCDFP#10.