Renesas R5F524TAADFF#31

Overview

R5F524TAADFF#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 single-precision FPU (IEEE754-compliant), 256 KB flash, 16 KB SRAM, and 8 KB data flash with 1M erase/write cycles. It integrates dual 12-bit ADC units (5+5 channels) with 3-channel simultaneous sample-and-hold, programmable gain amplifiers, and two 8-bit DACs for comparator reference generation.

For engineers reviewing the R5F524TAADFF#31 datasheet, R5F524TAADFF#31 pinout, R5F524TAADFF#31 application, or R5F524TAADFF#31 equivalent, this MCU delivers deterministic real-time PWM control (MTU3 ×9 + GPT ×4), ISO11898-1 CAN interface, IEC60730 safety support, and hardware-assisted CRC calculation - all in an 80-pin LQFP (0.65 mm pitch) package rated for –40°C to +85°C operation.

Technical Context

The R5F524TAADFF#31 implements the RXv2 CISC Harvard architecture with 5-stage pipeline, variable-length instructions, and ultra-compact code density. Its MTU3 timer unit supports three-phase complementary PWM with automatic dead-time insertion and phase counting modes, while GPT enables cascaded 32-bit timing and synchronized multi-channel PWM generation.

Clock management includes PLL (4–12.5 MHz input), on-chip high/low-speed oscillators, and dedicated IWDT oscillator (15 kHz). Safety features include MPU (8 regions), register write protection, DOC-based RAM self-test, and CAC for clock accuracy monitoring - all aligned with IEC60730 Class B requirements for motor drive firmware validation.

Key Specifications

Pinout & Package

Package: 80-pin LQFP (PLQP0080JA-A), 14 mm × 14 mm, 0.65 mm pitch, exposed pad for thermal dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F524TAADFF#31, R5F524TBADFP#31 offers expanded peripheral integration at the cost of board space, while R5F524T8ADFF#31 trades flash size and CAN capability for lower unit cost - making R5F524TAADFF#31 the optimal balance of motor control features, safety compliance, and compact packaging.

Availability

R5F524TAADFF#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 assurance, and traceable sourcing.

Supply support for R5F524TAADFF#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 management solutions for industrial, automotive, and IoT markets.

The RX24T Group, including R5F524TAADFF#31, was designed specifically for high-performance motor control applications - integrating precision PWM, synchronized analog capture, and IEC60730 safety features into a single chip.

FAQ

What is the maximum operating frequency and CPU performance of the R5F524TAADFF#31?

The R5F524TAADFF#31 operates at a maximum frequency of 80 MHz using the RXv2 32-bit CPU core, delivering 153.6 DMIPS of processing performance. Its on-chip single-precision floating-point unit (FPU) complies with IEEE754 and accelerates motor control math operations such as Park/Clarke transforms and PID calculations without software emulation overhead.

Does the R5F524TAADFF#31 support simultaneous sampling across multiple ADC channels?

Yes, the R5F524TAADFF#31 includes a 3-channel simultaneous sample-and-hold circuit in ADC unit 1, enabling concurrent acquisition of up to three analog inputs (e.g., motor phase currents). This hardware synchronization ensures phase-aligned data for accurate field-oriented control algorithms without software coordination delays.

What safety certifications or features does the R5F524TAADFF#31 provide for industrial applications?

The R5F524TAADFF#31 incorporates multiple IEC60730 Class B compliance features: memory protection unit (MPU), register write protection, clock frequency accuracy measurement circuit (CAC), data operation circuit (DOC) for RAM testing, and ADC self-diagnostic functions. These reduce external component count and simplify functional safety certification for motor control systems.

Which PWM timer modules are available on the R5F524TAADFF#31 and what motor control functions do they support?

The R5F524TAADFF#31 integrates MTU3 (9 channels) and GPT (4 channels). MTU3 supports three-phase complementary PWM with automatic dead-time insertion, phase counting, and A/D trigger generation. GPT provides single-phase complementary PWM and cascaded 32-bit timing - together enabling full 3-phase inverter control with hardware timing precision.

What communication interfaces are integrated into the R5F524TAADFF#31 and how are they typically used in motor control systems?

The R5F524TAADFF#31 includes CAN (ISO11898-1, 16 message boxes), SCI ×3 (asynchronous/clock-sync/I²C/SPI), RIIC (400 kbps), and RSPI (20 Mbps). CAN handles networked motor commands and status reporting; SCI/RSPI interface with position sensors or gate drivers; RIIC connects to temperature or voltage monitors - forming a complete motor subsystem communication stack.