Renesas R5F526TFADFM#30

Overview

R5F526TFADFM#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 functional safety compliance and operates across –40°C to +85°C.

For engineers reviewing the R5F526TFADFM#30 datasheet, R5F526TFADFM#30 pinout, R5F526TFADFM#30 application, or R5F526TFADFM#30 equivalent, key selection considerations include its 100-pin LQFP package, dual-bank flash architecture enabling background programming, 3-phase/5-phase complementary PWM capability, hardware-accelerated trigonometric functions (TFUv2), and Trusted Secure IP Lite encryption engine with AES-128/256 support.

Technical Context

The R5F526TFADFM#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 an 8–24 MHz external crystal oscillator, PLL frequency synthesizer, and dedicated 120 kHz IWDT oscillator - all supporting independent domain clocking (ICLK up to 120 MHz, PCLKA up to 120 MHz, PCLKB up to 60 MHz).

Peripheral integration centers on motor control: MTU3d (9-channel 16-bit timer) and GPTWa (8-channel 32-bit timer) provide synchronized 3-phase complementary PWM with automatic dead-time insertion; HRPWM extends timing resolution to 260 ps; S12ADH includes three 12-bit A/D units with simultaneous sampling across 22 channels; CMPCa offers six analog comparators with programmable reference inputs.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin Low-profile Quad Flat Package, 14 mm × 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 R5F526TFADFM#30, the R5F526TAAFDL#30 offers identical peripheral architecture in a smaller footprint but reduced memory and I/O - suitable for scaled-down implementations; the R5F566TEADFP#30 delivers higher performance and expanded resources but requires PCB redesign due to different package and pinout.

Availability

R5F526TFADFM#30 is available at Aetrix Electronics and suitable for industrial motor drives, home appliance inverters, PLC I/O modules, and EV onboard charger designs requiring stable component supply, long-term lifecycle support, and automotive-grade reliability.

Supply support for R5F526TFADFM#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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX26T Group - including R5F526TFADFM#30 - was designed specifically for high-precision motor control in industrial and consumer inverters, integrating advanced PWM, analog sensing, and functional safety features into a single chip.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TFADFM#30?

The R5F526TFADFM#30 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, 16 general-purpose 32-bit registers, and optimized pipeline architecture - enabling deterministic real-time response for motor control loops.

Does the R5F526TFADFM#30 support CAN FD, and what standard does it comply with?

Yes, the R5F526TFADFM#30 integrates a CAN FD module compliant with ISO 11898-1:2015, supporting both standard and extended frames with data rates up to 5 Mbps in the data phase. It provides full protocol handling including bit-rate switching, error confinement, and message filtering - essential for high-bandwidth diagnostics and control in industrial networks.

How many A/D converter channels does the R5F526TFADFM#30 support, and what is their resolution?

The R5F526TFADFM#30 supports 22 channels of 12-bit A/D conversion via the S12ADH peripheral, organized across three independent units (Unit 0: 4 channels, Unit 1: 4 channels, Unit 2: 14 channels). Each unit includes dedicated sample-and-hold circuits, enabling simultaneous sampling critical for accurate current/voltage vector measurement in motor control applications.

What is the purpose of the HRPWM feature in the R5F526TFADFM#30, and what timing resolution does it achieve?

The HRPWM (High-Resolution PWM) feature in the R5F526TFADFM#30 enables sub-nanosecond edge placement control - achieving a minimum resolution of 260 ps for rising and falling edges of PWM waveforms generated by GPTW0 through GPTW3. This allows precise dead-time adjustment and harmonic suppression in high-frequency inverter topologies, directly improving efficiency and EMI performance.

Is the R5F526TFADFM#30 qualified for functional safety standards like IEC60730?

Yes, the R5F526TFADFM#30 includes multiple hardware features certified for IEC60730 Class B compliance, including oscillation-stop detection, RAM test assist (DOC), CRC calculator (CRCA), register write protection, independent watchdog timer (IWDT), and self-diagnostic A/D functions. These reduce software verification burden and support certification of end equipment without external safety monitors.