Renesas R5F524T8AGFM#31

Overview

R5F524T8AGFM#31 from Renesas Electronics is a 32-bit RXv2 microcontroller optimized for motor control and industrial inverter applications, featuring an 80 MHz CPU core (153.6 DMIPS), on-chip FPU compliant with IEEE754, 128 KB code flash, 16 KB SRAM, and 8 KB data flash rated for 1,000,000 erase/write cycles. It integrates dual 12-bit ADC units with 3-channel simultaneous sampling, three-phase complementary PWM generation via MTU3, and CAN 2.0B compliance per ISO11898-1.

For engineers reviewing the R5F524T8AGFM#31 datasheet, R5F524T8AGFM#31 pinout, R5F524T8AGFM#31 application, or R5F524T8AGFM#31 equivalent, this device supports real-time motor phase current sensing, high-precision PWM dead-time control, IEC60730-compliant self-diagnostic functions, and deterministic interrupt response for safety-critical embedded control loops.

Technical Context

The R5F524T8AGFM#31 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions-enabling ultra-compact code and single-cycle instruction execution at 80 MHz. Its memory protection unit (MPU) supports eight configurable protection areas down to 16-byte granularity, while the CAC circuit continuously monitors clock accuracy against reference sources including main oscillator, PLL, and on-chip oscillators.

Peripheral timing is segmented across four clock domains: ICLK (80 MHz for CPU), PCLKA (80 MHz for MTU3/GPT), PCLKB (40 MHz for most peripherals), and PCLKD (40 MHz for S12AD). The MTU3 unit delivers nine 16-bit channels with hardware-accelerated three-phase complementary PWM, automatic dead-time insertion, and A/D trigger synchronization-critical for field-oriented control (FOC) of brushless DC and AC induction motors.

Key Specifications

Pinout & Package

Package: PLQP0064KB-C - 64-pin LFQFP, 10 mm × 10 mm body, 0.5 mm pitch, –40°C to +85°C operating range, 5 V supply.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F524T8AGFM#31, R5F524TAADFM#31 offers greater code space for advanced motor algorithms but requires revalidation of flash layout, while R5F524T8ADFM#31 provides identical functionality with guaranteed compatibility for production continuity.

Availability

R5F524T8AGFM#31 is available at Aetrix Electronics and suitable for industrial motor drives, inverter power stage controllers, appliance motor control systems, and factory automation nodes requiring stable component supply and long-term lifecycle support.

Supply support for R5F524T8AGFM#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, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX24T Group targets high-performance motor control applications, integrating specialized timers, analog peripherals, and safety features to accelerate development of IEC60730-compliant inverters and drives.

FAQ

What is the maximum operating frequency and CPU performance of the R5F524T8AGFM#31?

The R5F524T8AGFM#31 operates at a maximum frequency of 80 MHz using its RXv2 32-bit CPU core, delivering 153.6 DMIPS of processing performance. This enables real-time execution of field-oriented control (FOC) algorithms, sensorless position estimation, and fast-response current regulation loops without software bottlenecks. The R5F524T8AGFM#31 achieves this performance with zero-wait-state access to 16 KB SRAM and optimized instruction throughput via its 5-stage pipeline and variable-length encoding.

Does the R5F524T8AGFM#31 support simultaneous sampling for motor current measurement?

Yes, the R5F524T8AGFM#31 includes a 12-bit S12ADF ADC with a dedicated 3-channel simultaneous sample-and-hold circuit in Unit 1-designed specifically for accurate three-phase motor current acquisition. This feature allows synchronized sampling of all three shunt resistors within a single ADC conversion cycle, minimizing phase error and enabling precise torque calculation. The R5F524T8AGFM#31 supports programmable sampling time per channel and group scan priority control to further optimize timing alignment with PWM switching events.

What motor control-specific peripherals are integrated into the R5F524T8AGFM#31?

The R5F524T8AGFM#31 integrates MTU3 (9-channel 16-bit multi-function timer) and GPT (4-channel 16-bit general PWM timer) with hardware-accelerated three-phase complementary PWM generation, automatic dead-time insertion, and phase counting modes. It also includes a programmable gain amplifier (4 channels), comparator C (4 channels), and ADSM-triggered ADC start capability-all coordinated to support closed-loop motor control without CPU intervention. These peripherals are tightly coupled to minimize jitter and ensure deterministic timing in the R5F524T8AGFM#31's motor control implementation.

Is the R5F524T8AGFM#31 certified or supported for IEC60730 safety compliance?

Yes, the R5F524T8AGFM#31 includes built-in hardware features explicitly designed to assist IEC60730 Class B compliance, including self-diagnostic functions for the ADC, clock frequency accuracy measurement (CAC), independent watchdog timer (IWDT), RAM test assistance via DOC, and analog input disconnection detection. These capabilities reduce reliance on external components and simplify certification documentation. The R5F524T8AGFM#31 datasheet documents each function's coverage and diagnostic coverage metrics per IEC60730 Annex H requirements.

What package type and pin count does the R5F524T8AGFM#31 use?

The R5F524T8AGFM#31 uses the PLQP0064KB-C package: a 64-pin LFQFP with 10 mm × 10 mm body size and 0.5 mm pin pitch. It provides 48 general-purpose I/O pins, including 37 open-drain outputs and 2 pins with 5-V tolerance. This compact, thermally efficient package supports high-density PCB layouts typical in motor drive modules and is qualified for industrial temperature range (–40°C to +85°C). All signal and power pin assignments for the R5F524T8AGFM#31 are defined in Table 1.4 of the official Renesas datasheet R01DS0257EJ0200.