Renesas R5F524T8ADFP#31

Overview

R5F524T8ADFP#31 from Renesas Electronics is a 32-bit RXv2 core microcontroller optimized for motor control and industrial inverter applications, operating at up to 80 MHz (153.6 DMIPS), featuring integrated FPU (IEEE 754 compliant), 128 KB on-chip flash, 16 KB SRAM, 8 KB data flash, and dual 12-bit ADC units with 3-channel simultaneous sampling capability.

For engineers reviewing the R5F524T8ADFP#31 datasheet, R5F524T8ADFP#31 pinout, R5F524T8ADFP#31 application, or R5F524T8ADFP#31 equivalent, key selection criteria include its three-phase complementary PWM generation (MTU3 × 2 channels), CAN 2.0B interface (ISO 11898-1), IEC60730 safety support, and 100-pin LFQFP package with 5-V tolerant I/Os.

Technical Context

The R5F524T8ADFP#31 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions - enabling ultra-compact code and fast interrupt response. It integrates dedicated motor control peripherals including MTU3 (9-channel 16-bit timer with dead-time compensation and phase counting) and GPT (4-channel 16-bit general PWM timer with cascaded 32-bit mode).

Its clock system includes PLL (4–12.5 MHz input), on-chip oscillators (high/low-speed + IWDT-dedicated 15 kHz), and CAC for real-time clock accuracy monitoring. Power management supports Sleep, Deep Sleep, and Software Standby modes with LVD detection across three independent voltage detection circuits.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin Low-Profile Quad Flat Package, 14 mm × 14 mm, 0.5 mm pitch, lead-free (Sn only), RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F524T8ADFP#31, R5F524TAADFP#31 offers headroom for larger firmware and enhanced safety diagnostics, while R5F523T7ADFP#31 trades FPU, CAC, and POE3b for lower BOM cost - making the R5F524T8ADFP#31 optimal for mid-tier industrial inverters needing balanced performance, safety, and footprint.

Availability

R5F524T8ADFP#31 is available at Aetrix Electronics and suitable for industrial motor drives, home appliance inverters, and automotive auxiliary systems requiring stable component supply, long-term lifecycle support, and traceable sourcing for production ramp-up.

Supply support for R5F524T8ADFP#31 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 specializing in microcontrollers, analog, and power solutions for industrial, automotive, and IoT markets.

The RX24T Group - to which R5F524T8ADFP#31 belongs - was designed specifically for high-performance motor control in industrial inverters and appliances, integrating advanced PWM, synchronized ADC, and functional safety features on a single chip.

FAQ

What is the maximum operating frequency and CPU performance of the R5F524T8ADFP#31?

The R5F524T8ADFP#31 operates at a maximum frequency of 80 MHz using the RXv2 32-bit CPU core, delivering 153.6 DMIPS of processing performance. Its Harvard architecture with 5-stage pipeline, on-chip FPU (IEEE 754 compliant), and DSP instructions enable deterministic execution of motor control algorithms - critical for field-oriented control loops running at ≥20 kHz.

Does the R5F524T8ADFP#31 support IEC60730 Class B compliance?

Yes, the R5F524T8ADFP#31 includes hardware-assisted IEC60730 Class B safety features: ADC disconnection detection, RAM integrity testing via DOC, independent watchdog timer (IWDT) with dedicated oscillator, clock frequency accuracy measurement (CAC), and self-diagnostic routines for internal oscillators - all documented in Renesas' Functional Safety Manual R01UM0070EJ0200.

What PWM capabilities does the R5F524T8ADFP#31 provide for inverter control?

The R5F524T8ADFP#31 integrates MTU3 (9-channel 16-bit timer) and GPT (4-channel 16-bit timer) to deliver three-phase complementary PWM × 2 channels with automatic dead-time insertion, phase counting, and reset-synchronized PWM. It supports simultaneous output of six PWM signals (U/V/W + inverted) with hardware-controlled fault shutdown via POE3b - eliminating software latency in overcurrent events.

How many ADC channels and what sampling capability does the R5F524T8ADFP#31 offer?

The R5F524T8ADFP#31 integrates three 12-bit S12ADF ADC units: Unit 0 (5 channels), Unit 1 (5 channels), and Unit 2 (12 channels). Unit 1 includes a 3-channel simultaneous sample-and-hold circuit, enabling synchronized acquisition of motor phase currents. Each channel supports programmable sampling time, group scan priority, and programmable gain amplification (6-step scaling) for direct shunt resistor interfacing.

What package type and pin count does the R5F524T8ADFP#31 use?

The R5F524T8ADFP#31 uses the PLQP0100KB-B package: a 100-pin Low-Profile Quad Flat Package (LFQFP) with 14 mm × 14 mm body size and 0.5 mm pin pitch. It features 80 general-purpose I/O pins, 5-V tolerant inputs, open-drain outputs, and configurable drive strength - optimized for noise-immune motor control board layouts.