Renesas R5F526T9BDFN#30

Overview

R5F526T9BDFN#30 from Renesas is a 32-bit RXv3 microcontroller optimized for motor control, featuring 120 MHz operation, 512 KB on-chip flash, 64 KB SRAM, 16 KB data flash, integrated CAN FD, and high-resolution PWM with 260 ps timing resolution. It delivers 709 CoreMark performance and supports IEC60730 safety compliance in industrial motor drives.

For engineers reviewing the R5F526T9BDFN#30 datasheet, R5F526T9BDFN#30 pinout, R5F526T9BDFN#30 application, or R5F526T9BDFN#30 equivalent, key selection criteria include its 100-pin LFQFP package, dual-bank flash for safe firmware updates, 3-phase/5-phase complementary PWM capability, hardware-accelerated trigonometric functions (TFUv2), and Trusted Secure IP Lite encryption with AES-128/256.

Technical Context

The R5F526T9BDFN#30 implements the RXv3 CPU core with single-cycle instruction execution, 16 general-purpose 32-bit registers, and IEEE 754-compliant single-precision FPU. Its clock system integrates PLL, HOCO (16/18/20 MHz), LOCO (240 kHz), and IWDT-dedicated 120 kHz oscillator, enabling independent peripheral clock domains (PCLKA up to 120 MHz, PCLKB up to 60 MHz).

Motor control is enabled by tightly coupled peripherals: GPTWa (32-bit × 8 channels) and MTU3d (16-bit × 9 channels) support simultaneous 3-phase complementary PWM with automatic dead-time insertion, while HRPWM provides 260 ps edge placement resolution. The S12ADH ADC includes three sample-and-hold units for synchronized sampling across up to 22 channels.

Key Specifications

Pinout & Package

Package: LFQFP-100 (PLQP0100KB-B), 14 × 14 mm body, 0.5 mm pitch, lead-free, RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526T9BDFN#30, R5F526TADFN#30 offers reduced memory at lower cost for simpler implementations, while R5F523T5ADFP#30 sacrifices HRPWM precision and computational acceleration for footprint and price reduction-neither matches the full 120 MHz FOC capability and IEC60730 readiness of the R5F526T9BDFN#30.

Availability

R5F526T9BDFN#30 is available at Aetrix Electronics and suitable for industrial motor drives, automotive HVAC systems, home appliance inverter compressors, and renewable energy power converters requiring stable component supply and long-term lifecycle support.

Supply support for R5F526T9BDFN#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 applications.

The RX26T Group is designed specifically for high-performance motor control, integrating precision PWM, fast ADC, hardware math acceleration, and functional safety features to replace discrete analog/motor control ICs in inverter systems.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526T9BDFN#30?

The R5F526T9BDFN#30 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark performance. This benchmark reflects real-world execution efficiency of the RXv3 CPU core with its 16 general-purpose 32-bit registers, single-cycle instruction execution, and integrated FPU. The R5F526T9BDFN#30 sustains this performance with no wait states on its 512 KB on-chip flash memory.

Does the R5F526T9BDFN#30 support IEC60730 functional safety certification?

Yes, the R5F526T9BDFN#30 includes multiple hardware features required for IEC60730 Class B compliance: oscillation-stoppage detection, self-diagnostic A/D converter functions, clock frequency accuracy measurement, independent watchdog timer (IWDTa), RAM test-assisting function via DOC, CRC calculator (CRCA), and register write protection. These capabilities are documented in the R01DS0407EJ0120 datasheet and enable certified safety firmware development for the R5F526T9BDFN#30.

What PWM resolution does the R5F526T9BDFN#30 provide, and how is it achieved?

The R5F526T9BDFN#30 provides a minimum PWM edge placement resolution of 260 ps using its dedicated High-Resolution PWM (HRPWM) circuit. This resolution is achieved by leveraging the 120 MHz system clock and internal phase-shift logic within the HRPWM block, which controls the timing of rising/falling edges for GPTWa channels 0–3. This capability is critical for minimizing dead-time uncertainty in SiC/GaN-based inverter designs using the R5F526T9BDFN#30.

How many analog-to-digital converter channels does the R5F526T9BDFN#30 support, and what sampling architecture does it use?

The R5F526T9BDFN#30 supports up to 22 channels of 12-bit analog-to-digital conversion via the S12ADH module, organized across three sample-and-hold units: Unit 0 (4 channels), Unit 1 (4 channels), and Unit 2 (14 channels). This architecture enables true simultaneous sampling across all three units, essential for vector control algorithms requiring synchronized current and voltage measurements. The R5F526T9BDFN#30 achieves 0.9 µs minimum conversion time per channel when ADCLK runs at 60 MHz.

What communication interfaces are integrated into the R5F526T9BDFN#30, and which support automotive protocols?

The R5F526T9BDFN#30 integrates CAN FD (ISO11898-1:2015 compliant), 4× SCI, 3× RSCI (with LIN and Manchester encoding), RIICa (I2C/SMBus), RI3C (I3C SDR), and two RSPI modules (RSPId and RSPIA). CAN FD and RSCI channels 9 and 11 explicitly support LIN protocol, making the R5F526T9BDFN#30 suitable for automotive body electronics and HVAC subsystems requiring robust, standardized serial communication.