Renesas R5F526TFADFL#30

Overview

R5F526TFADFL#30 from Renesas is a 32-bit RXv3 microcontroller optimized for motor control and power conversion, featuring a 120 MHz CPU core delivering 709 CoreMark, 512 KB on-chip code flash, 64 KB SRAM, 16 KB data flash, integrated CAN FD interface, and hardware-accelerated 3-phase/5-phase complementary PWM generation with 260 ps HRPWM timing resolution. It targets inverter drives and industrial servo systems requiring IEC 60730 functional safety support.

For engineers reviewing the R5F526TFADFL#30 datasheet, R5F526TFADFL#30 pinout, R5F526TFADFL#30 application, or R5F526TFADFL#30 equivalent, key selection considerations include its 100-pin LFQFP package, dual-bank flash for safe firmware updates, simultaneous sampling across three 12-bit ADC units (up to 22 channels), six analog comparators, and Trusted Secure IP Lite encryption engine supporting AES-128/256 and true random number generation.

Technical Context

The R5F526TFADFL#30 implements the RXv3 CPU core with single-cycle instruction execution, 16 general-purpose 32-bit registers, and IEEE 754-compliant single-precision FPU. Its clock system integrates an 8–24 MHz external crystal oscillator, internal 240 kHz LOCO and 16/18/20 MHz HOCO, and PLL for stable 120 MHz ICLK generation.

Peripheral timing is segmented across four clock domains: PCLKA (up to 120 MHz) for MTU3d/GPTWa/HRPWM/CAN FD; PCLKB (up to 60 MHz) for SCI/RSCI/RIIC/RI3C; PCLKC (up to 120 MHz) as counter reference for timers and HRPWM; and PCLKD (up to 60 MHz) for S12ADH ADC operation - enabling independent optimization of real-time control, communication, and analog acquisition subsystems.

Key Specifications

Pinout & Package

Package: LFQFP-100 (PLQP0100KB-B), 14 × 14 mm body, 0.5 mm lead pitch, exposed pad, RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TFADFL#30, the R5F526TDDFL#30 reduces memory headroom for advanced control algorithms but maintains identical peripheral sets and safety features, while the R5F566TEADFP#30 trades embedded security and 260 ps HRPWM for raw CPU speed and larger flash - making it suitable for performance-first, non-certified applications.

Availability

R5F526TFADFL#30 is available at Aetrix Electronics and suitable for industrial motor drives, automotive on-board chargers, uninterruptible power supplies, and renewable energy inverters requiring stable component supply, long-term lifecycle support, and full IEC 60730 compliance documentation.

Supply support for R5F526TFADFL#30 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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX26T Group is designed specifically for high-performance motor control and power conversion applications, integrating precision analog peripherals, real-time PWM engines, and functional safety features to replace discrete control + gate driver + protection architectures with a single-chip solution.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TFADFL#30?

The R5F526TFADFL#30 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark in benchmark testing. This performance stems from the RXv3 CPU core's single-cycle instruction execution, 16 general-purpose 32-bit registers, and efficient pipeline design - enabling deterministic real-time response for motor control loops running at >20 kHz switching frequencies. The R5F526TFADFL#30 sustains this speed across its full 512 KB flash and 64 KB SRAM with zero wait states.

Does the R5F526TFADFL#30 support IEC 60730 Class B compliance out of the box?

Yes, the R5F526TFADFL#30 includes dedicated hardware features for IEC 60730 Class B compliance: oscillation-stop detection, RAM test assist using DOC, CRC calculator (CRCA), A/D converter disconnection detection, independent watchdog timer (IWDTa) with window function, and register write protection. These are documented in Renesas Application Note R01AN4259EJ0100 and require no external components - allowing certified implementations without additional safety monitors or external watchdog ICs.

What ADC configuration does the R5F526TFADFL#30 support, and how many channels are available?

The R5F526TFADFL#30 supports three independent 12-bit S12ADH units: Unit 0 (4 channels with 3 sample-and-hold circuits), Unit 1 (4 channels with 3 sample-and-hold circuits), and Unit 2 (14 channels). This provides up to 22 total analog inputs with simultaneous sampling capability across all units - essential for capturing motor phase currents, DC-link voltage, and temperature in a single PWM cycle. Minimum conversion time is 0.9 µs per channel when ADCLK runs at 60 MHz.

What is the role of the HRPWM module in the R5F526TFADFL#30, and what resolution does it achieve?

The HRPWM (High-Resolution PWM) module in the R5F526TFADFL#30 refines timing control for GPTW0–GPTW3 outputs, achieving a minimum resolution of 260 ps at 120 MHz operation. This enables precise dead-time adjustment, harmonic cancellation, and gate driver timing calibration - critical for SiC and GaN-based inverters where nanosecond-level timing errors cause shoot-through or increased EMI. HRPWM operates independently of main PWM counters and is synchronized to PCLKC.

Which communication interfaces with functional safety relevance are integrated into the R5F526TFADFL#30?

The R5F526TFADFL#30 integrates CAN FD (ISO 11898-1:2015 compliant) as its primary functional safety interface, supporting error-checking, message filtering, and guaranteed latency for motor control commands and fault reporting. Additionally, the RIIC (I²C) and RI3C (I3C) interfaces include CRC-based frame validation and ELC-triggered error interrupts - enabling robust communication with isolated ADCs, temperature sensors, and safety monitors in redundant architectures.