Renesas R5F524T8ADFN#31

Overview

R5F524T8ADFN#31 from Renesas Electronics is a 32-bit RXv2 core MCU optimized for motor control and industrial inverter applications, operating at up to 80 MHz (153.6 DMIPS), featuring integrated FPU (IEEE 754 compliant), 128-Kbyte on-chip flash, 16-Kbyte SRAM, and dual 8-bit D/A converters for comparator reference generation. It supports three-phase complementary PWM with automatic dead-time insertion via MTU3 and GPT modules.

For engineers reviewing the R5F524T8ADFN#31 datasheet, R5F524T8ADFN#31 pinout, R5F524T8ADFN#31 application, or R5F524T8ADFN#31 equivalent, key selection criteria include its 80-MHz PWM timing precision, 12-bit ADC with 3-channel simultaneous sampling (S/H), IEC60730 safety support, CAN interface compliance with ISO11898-1, and LFQFP-80 0.5-mm-pitch package compatibility with industrial temperature range (–40°C to +85°C).

Technical Context

The R5F524T8ADFN#31 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions-enabling ultra-compact code and fast interrupt response. Its clock system integrates PLL (4–12.5 MHz input), on-chip high/low-speed oscillators, and CAC for real-time clock accuracy monitoring.

Motor control execution relies on tightly coupled peripherals: MTU3 provides nine 16-bit channels supporting three-phase complementary PWM ×2 + single-phase complementary ×4 outputs, while GPT delivers four 16-bit channels with cascaded 32-bit operation, comparator interlocking, and programmable dead-time generation-all synchronized to PCLKA at 80 MHz.

Key Specifications

Pinout & Package

Package: PLQP0080KB-B - 80-pin LFQFP, 14 mm × 14 mm, 0.5 mm pitch, –40°C to +85°C operating range.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F524T8ADFN#31, R5F524TAADFN#31 offers higher memory headroom and expanded safe-shutdown control, while R5F523T5ADFP#31 trades CAN and advanced PWM density for lower cost and simpler thermal design-making each viable only where their specific feature gaps do not impact functional safety or system scalability.

Availability

R5F524T8ADFN#31 is available at Aetrix Electronics and suitable for industrial motor drives, home appliance inverters, PLC I/O modules, and energy monitoring gateways requiring stable component supply across extended product lifecycles.

Supply support for R5F524T8ADFN#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 ICs for automotive, industrial, and IoT applications.

The RX24T Group-including R5F524T8ADFN#31-is designed specifically for high-precision motor control, integrating enhanced PWM timing, simultaneous ADC sampling, and IEC60730 safety features into a single 80-MHz 32-bit MCU platform.

FAQ

What is the maximum PWM frequency supported by R5F524T8ADFN#31?

R5F524T8ADFN#31 supports PWM output frequencies up to 40 MHz using MTU3's 80-MHz PCLKA clock with 2× prescaling. This enables 25-ns resolution for precise dead-time insertion and high-frequency inverter switching-critical for reducing acoustic noise in HVAC and appliance motors.

Does R5F524T8ADFN#31 include hardware support for IEC60730 Class B compliance?

Yes, R5F524T8ADFN#31 includes dedicated hardware for IEC60730 Class B: memory protection unit (MPU), clock accuracy measurement circuit (CAC), independent watchdog timer (IWDT) with dedicated oscillator, RAM test assistance via DOC, and ADC self-diagnostic/disconnection detection-enabling certified safety firmware implementation without external components.

Can R5F524T8ADFN#31 perform simultaneous sampling across all 22 ADC channels?

No-R5F524T8ADFN#31 supports simultaneous sampling only on unit 1 (3 channels via built-in sample-and-hold). Units 0 and 2 operate sequentially. Total channel count is 22 (5+5+12), but true concurrent acquisition is limited to the 3-channel S/H circuit in unit 1-optimized for three-phase current sensing in motor control.

What package type and pin pitch does R5F524T8ADFN#31 use?

R5F524T8ADFN#31 uses the PLQP0080KB-B package: an 80-pin low-profile quad flat package (LFQFP) with 14 mm × 14 mm body size and 0.5 mm pin pitch. It is lead-free (Sn-only surface finish) and rated for industrial temperature range (–40°C to +85°C).

Is CAN communication supported on R5F524T8ADFN#31, and what protocol versions are compliant?

Yes, R5F524T8ADFN#31 integrates one RSCAN module compliant with ISO11898-1 for standard (11-bit) and extended (29-bit) frame formats. It supports bit rates up to 1 Mbps and includes 16 configurable message boxes with hardware acceptance filtering-suitable for industrial automation networks and automotive subsystems.