Renesas R5F523T3ADFL#10

Overview

R5F523T3ADFL#10 from Renesas is a 32-bit RX CPU-based microcontroller optimized for motor control and industrial inverter applications, operating at up to 40 MHz with 65.6 DMIPS performance, integrated FPU (IEEE 754 single-precision), 64 KB on-chip flash, 12 KB SRAM, and a 12-bit A/D converter with three sample-and-hold circuits - deployed in HVAC compressors, servo drives, and BLDC motor controllers.

For engineers reviewing the R5F523T3ADFL#10 datasheet, R5F523T3ADFL#10 pinout, R5F523T3ADFL#10 application, or R5F523T3ADFL#10 equivalent, this page delivers verified technical context, package-specific pin mapping, IEC60730-compliant self-diagnostic features, PWM timing accuracy for three-phase inverter gate driving, and validated alternative MCU options for motor control firmware migration.

Technical Context

The R5F523T3ADFL#10 implements the RX v2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions, supporting 32-bit multiply-accumulate and 16-bit multiply-subtract DSP operations. Its MTU3c timer unit delivers 40 MHz three-phase complementary PWM with automatic dead-time insertion and reset-synchronized output modes.

It integrates dual SCI interfaces (SCI1/SCI5) supporting asynchronous, clock-synchronous, smart card, simplified SPI/I²C modes; one RIIC bus interface (up to 400 kbps); one RSPI master/slave interface with 128-bit TX/RX buffers; and a 12-bit S12ADE ADC with per-channel sampling time control, double data registers, and analog input disconnection detection compliant with IEC60730 Class B.

Key Specifications

Pinout & Package

48-pin LFQFP (PLQP0048KB-B), 7 mm × 7 mm body, 0.5 mm pitch, exposed pad not present. Pin functions validated per Renesas R01DS0248EJ0110 Rev.1.10 Table 1.8 (48-pin LFQFP).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F523T3ADFL#10, R5F523T5ADFL#10 offers scalable flash capacity without layout change, while STM32G474RET6 trades Renesas' IEC60730-ready diagnostics for higher raw compute and analog integration - making the former ideal for certified inverter upgrades and the latter for new designs prioritizing ADC throughput over functional safety certification effort.

Availability

R5F523T3ADFL#10 is available at Aetrix Electronics and suitable for industrial motor drives, HVAC inverter modules, and factory automation I/O systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for ISO 13849/IEC 61800-5-2 compliance programs.

Supply support for R5F523T3ADFL#10 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 RX23T Group - including R5F523T3ADFL#10 - was designed specifically for high-precision, safety-aware motor control in industrial inverters and home appliance drives, integrating IEC60730 diagnostic features directly into the MCU silicon.

FAQ

What is the maximum operating frequency and core type of the R5F523T3ADFL#10?

The R5F523T3ADFL#10 features a 32-bit RX v2 CPU core with a maximum operating frequency of 40 MHz, delivering 65.6 DMIPS performance. It uses a Harvard architecture with a 5-stage pipeline and supports variable-length instructions. This core is optimized for deterministic real-time execution in motor control loops, with hardware acceleration for DSP and floating-point operations essential for FOC algorithms.

Does the R5F523T3ADFL#10 support IEC60730 Class B compliance out of the box?

Yes, the R5F523T3ADFL#10 includes built-in hardware features for IEC60730 Class B compliance, including self-diagnostic functions for the A/D converter, clock frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDT), RAM test assistance using the DOC, and analog input disconnection detection. These are documented in Renesas Application Note R01AN2319 and enabled via register configuration - no external components required.

What package type and pin count does the R5F523T3ADFL#10 use?

The R5F523T3ADFL#10 uses a 48-pin LFQFP package (PLQP0048KB-B) with 7 mm × 7 mm body size and 0.5 mm pin pitch. It provides 37 general-purpose I/O pins, 2 5-V tolerant inputs, and 29 open-drain outputs. Pin functions are fully detailed in Table 1.8 of the R01DS0248EJ0110 datasheet, confirming compatibility with standard 48-pin QFP footprints.

How many A/D converter channels and what resolution does the R5F523T3ADFL#10 support?

The R5F523T3ADFL#10 integrates a 12-bit S12ADE A/D converter with 10 input channels (AN000–AN007, AN016, AN017). It includes three independent sample-and-hold circuits, double data registers per channel, and programmable sampling time per channel. Minimum conversion time is 1.0 µs at 40 MHz ADCLK, supporting synchronized sampling for three-phase current reconstruction in motor control.

Can the R5F523T3ADFL#10 generate three-phase complementary PWM waveforms?

Yes, the R5F523T3ADFL#10's MTU3c timer unit supports hardware-generated three-phase complementary PWM with automatic dead-time insertion, adjustable duty cycle (0–100%), and reset-synchronized output. It provides six 16-bit channels capable of generating non-overlapping waveforms for inverter gate drivers - confirmed in Section 1.3 (Block Diagram) and Section 3.3.1 (MTU3c) of R01DS0248EJ0110.