Renesas R5F526T9BDFN#50

Overview

R5F526T9BDFN#50 from Renesas is a 32-bit RXv3 microcontroller targeting 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 HRPWM timing resolution.

For engineers reviewing the R5F526T9BDFN#50 datasheet, R5F526T9BDFN#50 pinout, R5F526T9BDFN#50 application, or R5F526T9BDFN#50 equivalent, key selection considerations include its 100-pin LFQFP package, dual-bank flash for safe firmware updates, IEC60730-compliant safety features (oscillation-stop detection, RAM test assist, CRC), and dedicated motor control peripherals including MTU3d, GPTWa, and HRPWM.

Technical Context

The R5F526T9BDFN#50 implements the RXv3 CPU core with single-cycle instruction execution at 120 MHz, supporting 113 instructions and IEEE 754-compliant single-precision FPU. Its memory subsystem includes dual-bank 512 KB flash enabling background programming while executing from alternate bank, plus 64 KB zero-wait SRAM with SED error detection.

Motor control is enabled by tightly coupled timer subsystems: MTU3d (16-bit × 9 channels) and GPTWa (32-bit × 8 channels) operate synchronously with PCLKC up to 120 MHz, feeding HRPWM circuitry that achieves 260 ps minimum timing resolution for dead-time compensation and phase-shifted PWM edge placement in inverter gate drivers.

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 R5F526T9BDFN#50, the R5F526TADFN#50 reduces memory and analog resources for cost-sensitive applications, while the R5F566TEBDFN#50 delivers higher PWM precision and compute bandwidth at the expense of compatibility-making R5F526T9BDFN#50 the optimal balance of IEC60730 readiness, 3-phase control fidelity, and production maturity.

Availability

R5F526T9BDFN#50 is available at Aetrix Electronics and suitable for industrial motor drives, automotive HVAC systems, home appliance inverters, and PLC I/O modules requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F526T9BDFN#50 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 automotive, industrial, and IoT markets.

The RX26T Group-including R5F526T9BDFN#50-is designed specifically for high-performance, safety-aware motor control applications, integrating hardware-accelerated PWM, analog sensing, and functional safety features into a single chip for inverter and servo drive systems.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526T9BDFN#50?

The R5F526T9BDFN#50 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark points under benchmark conditions. This performance stems from its RXv3 CPU core with single-cycle instruction execution, 32-bit multiplier/divider, and barrel shifter-all running without wait states from its 512 KB on-chip flash memory. The CoreMark result reflects real-world integer processing capability relevant to motor control loop execution.

Does the R5F526T9BDFN#50 support IEC60730 Class B compliance out of the box?

Yes, the R5F526T9BDFN#50 includes multiple hardware features required for IEC60730 Class B compliance: oscillation-stop detection for the main clock, independent watchdog timer (IWDT) with window function, RAM test assist via Data Operation Controller (DOC), CRC calculator (CRCA), register write protection, and self-diagnostic A/D converter functionality. These are implemented in silicon and documented in Renesas' IEC60730 compliance guide for the RX26T Group.

What PWM configurations does the R5F526T9BDFN#50 support for 3-phase inverter control?

The R5F526T9BDFN#50 supports three complementary PWM modes essential for 3-phase inverter control: 10-channel single-phase, 3-channel 3-phase, and 2-channel 5-phase complementary PWM. It uses MTU3d and GPTWa timers synchronized to PCLKC (up to 120 MHz), with automatic dead-time insertion and non-overlap enforcement. The integrated HRPWM circuit further refines edge timing to 260 ps resolution for precise gate driver control in SiC/GaN-based inverters.

How many analog-to-digital converter channels does the R5F526T9BDFN#50 provide, and what is their architecture?

The R5F526T9BDFN#50 integrates the S12ADH 12-bit ADC with 22 total input channels distributed across three independent units: Unit 0 (4 channels), Unit 1 (4 channels), and Unit 2 (14 channels). Each of Units 0 and 1 includes three dedicated sample-and-hold circuits, enabling true simultaneous sampling across up to six channels-critical for synchronized current measurement in all three motor phases. Minimum conversion time is 0.9 µs per channel at 60 MHz ADCLK.

What communication interfaces are available on the R5F526T9BDFN#50 for industrial networking?

The R5F526T9BDFN#50 provides CAN FD (ISO 11898-1:2015 compliant), four SCI channels (with smart-card, SPI, and I²C emulation), three RSCI channels (supporting Manchester encoding and HBS), one I²C bus interface (RIICa, 400 kbps), one I³C bus interface (RI3C), and two RSPI channels (RSPId and RSPIA, up to 30 Mbps). These interfaces support deterministic real-time communication in industrial networks, including CAN FD for diagnostics and RSCI for encoder feedback in motor control loops.