Renesas R5F526T9BGFM#50

Overview

R5F526T9BGFM#50 from Renesas is a 32-bit RXv3 microcontroller optimized for motor control and industrial inverter applications, featuring a 120 MHz CPU core delivering 709 CoreMark, 512 KB on-chip code flash memory with dual-bank structure, 64 KB SRAM, 16 KB data flash (100,000 write cycles), and integrated CAN FD, HRPWM (260 ps resolution), and three 12-bit A/D converter units supporting simultaneous sampling.

For engineers reviewing the R5F526T9BGFM#50 datasheet, R5F526T9BGFM#50 pinout, R5F526T9BGFM#50 application, or R5F526T9BGFM#50 equivalent, this MCU is selected for high-precision timing-critical systems requiring deterministic PWM generation, IEC60730 safety compliance, real-time analog acquisition, and secure firmware execution via Trusted Secure IP Lite AES-256 encryption.

Technical Context

The R5F526T9BGFM#50 implements the RXv3 CPU core with single-cycle instruction execution, 16 general-purpose 32-bit registers, and IEEE 754-compliant single-precision FPU. It supports little-endian or big-endian data arrangement and includes a collective register bank save function for fast context switching in interrupt-heavy motor control loops.

Its clock system integrates an 8–24 MHz external crystal oscillator, internal 240 kHz LOCO and selectable 16/18/20 MHz HOCO, and a PLL synthesizer enabling 120 MHz operation. Peripheral clocks are independently configurable: PCLKA up to 120 MHz for MTU3d/GPTWa/HRPWM, PCLKB up to 60 MHz for most peripherals, and PCLKD up to 60 MHz for the 12-bit A/D converter (S12ADH).

Key Specifications

Pinout & Package

Package: PLQP0100KB-B (100-pin LQFP, 14 × 14 mm, 0.5 mm pitch). Pin count and I/O configuration match the 100-pin variant of the RX26T Group: 82 general-purpose I/O pins, 2 × 5-V tolerant inputs, 15 high-drive outputs, and dedicated signal routing for GPTWa/MTU3d waveform outputs, CAN FD transceiver, and analog subsystem interfaces.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526T9BGFM#50, the R5F526TADFGM#50 reduces package size and memory but retains HRPWM and CAN FD for compact inverters, while the R5F523T5ADFM#30 sacrifices resolution, safety features, and peripheral richness for lower cost in non-safety-critical applications.

Availability

R5F526T9BGFM#50 is available at Aetrix Electronics and suitable for industrial motor drives, home appliance inverters, electric power tools, and PLC I/O modules requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F526T9BGFM#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 R5F526T9BGFM#50, was designed specifically for high-efficiency motor control in industrial and consumer inverters, integrating precision PWM, safety-certified peripherals, and secure firmware execution in a single chip.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526T9BGFM#50?

The R5F526T9BGFM#50 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark performance. This benchmark reflects its RXv3 CPU core's efficiency in executing real-time motor control algorithms, including field-oriented control (FOC) and space-vector modulation, with deterministic timing essential for inverter stability.

Does the R5F526T9BGFM#50 support IEC60730 Class B compliance out of the box?

Yes, the R5F526T9BGFM#50 includes built-in IEC60730 Class B support features: oscillation-stop detection, A/D converter disconnection detection, clock accuracy measurement circuit, independent watchdog timer (IWDTa), RAM test-assisting function via DOC, CRCA, and register write protection - all documented in the R01DS0407EJ0120 datasheet.

What package type and pin count does the R5F526T9BGFM#50 use?

The R5F526T9BGFM#50 uses the PLQP0100KB-B package: a 100-pin LQFP measuring 14 × 14 mm with 0.5 mm pitch. It provides 82 general-purpose I/O pins, including 2 × 5-V tolerant inputs and 15 high-drive outputs, optimized for motor control signal routing and thermal dissipation in industrial environments.

How many A/D converter channels and units does the R5F526T9BGFM#50 include?

The R5F526T9BGFM#50 includes three 12-bit S12ADH units: Unit 0 (4 channels), Unit 1 (4 channels), and Unit 2 (14 channels), totaling 22 channels. All units support simultaneous sampling triggered by GPTWa or MTU3d events - critical for accurate three-phase current reconstruction in motor control.

What is the resolution and application of the HRPWM feature in the R5F526T9BGFM#50?

The R5F526T9BGFM#50 features 4-channel High-Resolution PWM (HRPWM) with a minimum timing resolution of 260 ps at 120 MHz operation. This enables nanosecond-level dead-time control for SiC and GaN power devices, directly improving inverter efficiency and reducing electromagnetic interference in high-frequency switching applications.