Renesas R5F524TBADFP#31

Overview

R5F524TBADFP#31 from Renesas Electronics is a 32-bit RXv2 microcontroller optimized for motor control and industrial inverter applications, featuring an 80-MHz CPU core, integrated 256-Kbyte flash memory, 32-Kbyte SRAM, dual 12-bit ADC units with 3-channel synchronous sample-and-hold, and two independent 8-bit DACs for comparator reference generation.

For engineers reviewing the R5F524TBADFP#31 datasheet, R5F524TBADFP#31 pinout, R5F524TBADFP#31 application, or R5F524TBADFP#31 equivalent, this MCU delivers deterministic PWM timing (three-phase complementary ×2 channels + single-phase complementary ×4), CAN 2.0B compliance, IEC60730 safety support, and on-chip FPU for real-time field-oriented control (FOC) without external co-processing.

Technical Context

The R5F524TBADFP#31 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and IEEE 754-compliant 32-bit floating-point unit enabling high-precision motor vector calculations at 153.6 DMIPS. Its clock system integrates PLL, on-chip oscillators, and CAC for real-time clock accuracy monitoring critical to closed-loop timing integrity.

Peripheral integration centers on motor control: MTU3 provides nine 16-bit timer channels supporting dead-time compensated three-phase PWM, while GPT offers four additional PWM-capable channels with comparator interlocking. The S12ADF ADC includes programmable gain amplifiers (1+3 channels across two units), self-diagnostic functions, and analog disconnection detection aligned with IEC60730 Class B requirements.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin Low-Profile Quad Flat Package, 14 mm × 14 mm body, 0.5 mm pitch, exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F524TEADFP#31, the R5F524TBADFP#31 trades flash capacity for identical motor control peripheral set and safety features at lower BOM cost; versus R5F524TAADFP#31, it adds CAN, POE3A, and full IEC60730 support essential for certified industrial drives.

Availability

R5F524TBADFP#31 is available at Aetrix Electronics and suitable for industrial inverters, brushless DC motor drives, factory automation motion controllers, and renewable energy power converters requiring stable component supply and long-term lifecycle assurance.

Supply support for R5F524TBADFP#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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.

The RX24T Group, including R5F524TBADFP#31, was designed specifically for high-performance motor control in industrial inverters and appliance drives, integrating precision analog, deterministic PWM, and functional safety features on a single die.

FAQ

What is the maximum operating frequency and CPU performance of the R5F524TBADFP#31?

The R5F524TBADFP#31 operates at a maximum frequency of 80 MHz using the RXv2 32-bit CPU core and delivers 153.6 DMIPS of processing performance. Its on-chip FPU supports IEEE 754 single-precision floating-point operations, enabling efficient execution of motor control algorithms such as Park/Clarke transforms and PID loops without external math coprocessors. This performance level is sustained across the full –40°C to +85°C operating temperature range.

Does the R5F524TBADFP#31 support IEC60730 Class B compliance for household appliances?

Yes, the R5F524TBADFP#31 includes multiple hardware features to support IEC60730 Class B compliance: memory protection unit (MPU), data operation circuit (DOC), CRC calculator, independent watchdog timer (IWDT) with dedicated oscillator, clock frequency accuracy measurement circuit (CAC), and built-in self-test assist functions for the ADC and RAM. These features reduce the need for external safety components and simplify certification documentation for appliance manufacturers using the R5F524TBADFP#31.

How many PWM channels does the R5F524TBADFP#31 provide for motor control?

The R5F524TBADFP#31 provides nine 16-bit MTU3 timer channels and four 16-bit GPT timer channels, all capable of PWM generation. It supports up to two independent three-phase complementary PWM outputs (with automatic dead-time insertion) plus four single-phase complementary PWM outputs - sufficient for dual-motor control or advanced inverter topologies like three-level NPC converters. All PWM outputs are hardware-synchronized to ADC sampling triggers via ADSM0/ADSM1 signals.

What ADC capabilities does the R5F524TBADFP#31 offer for current sensing in motor drives?

The R5F524TBADFP#31 integrates three 12-bit S12ADF ADC units totaling 22 channels: two units with five channels each and one unit with twelve channels. Each unit includes a 3-channel synchronous sample-and-hold circuit, allowing simultaneous sampling of up to three phase currents. Programmable gain amplifiers (1 channel in unit 0, 3 channels in unit 1) support direct shunt resistor interfacing, and minimum conversion time is 1.0 µs per channel at 40-MHz ADCLK - meeting the timing demands of high-speed field-oriented control using the R5F524TBADFP#31.

Is the R5F524TBADFP#31 pin-compatible with other RX24T Group MCUs in the same package?

Yes, the R5F524TBADFP#31 uses the PLQP0100KB-B package (100-pin LFQFP, 0.5 mm pitch) and shares identical pinout with other RX24T Group devices in that footprint, including R5F524TEADFP#31, R5F524TCADFP#31, and R5F524TAADFP#31. This allows drop-in replacement within the same hardware design when scaling flash/RAM capacity or selecting different chip versions - provided peripheral usage aligns with the target variant's functional configuration as defined in Table 1.2 of the datasheet.