Renesas R5F526TFBDNE#50

Overview

R5F526TFBDNE#50 from Renesas is a 32-bit RXv3 microcontroller optimized for motor control and industrial inverter applications, featuring 120 MHz operation, 512 KB code flash, 64 KB SRAM, 16 KB data flash, integrated CAN FD, and 3-phase complementary PWM with dead-time control. It supports IEC60730 functional safety compliance and includes hardware encryption (AES-128/256), FPU, and high-resolution PWM (260 ps min. resolution).

For engineers reviewing the R5F526TFBDNE#50 datasheet, R5F526TFBDNE#50 pinout, R5F526TFBDNE#50 application, or R5F526TFBDNE#50 equivalent, key selection criteria include 120 MHz real-time PWM timing precision, dual-bank flash for safe firmware updates, simultaneous sampling across three 12-bit ADC units, CAN FD interface for automotive-grade communication, and hardware-based security for secure boot and key management.

Technical Context

The R5F526TFBDNE#50 implements the RXv3 CPU core with single-cycle instruction execution, IEEE 754-compliant single-precision FPU, and collective register bank save for fast context switching. Its clock system integrates PLL, HOCO (16/18/20 MHz), LOCO (240 kHz), and IWDT-dedicated 120 kHz oscillator - enabling independent domain clocking (ICLK up to 120 MHz, PCLKA up to 120 MHz, PCLKB up to 60 MHz, PCLKC/PCLKD up to 120/60 MHz).

Motor control capability is anchored by GPTWa (32-bit × 8 channels), MTU3d (16-bit × 9 channels), and HRPWM (4 channels, 260 ps resolution), all synchronized via PCLKC and coordinated through ELC for interrupt-free event chaining. The S12ADH ADC supports simultaneous sampling across three units (4+4+14 channels) with programmable gain amplifiers and self-diagnostic functions required for IEC60730 Class B compliance.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin Low-Profile Quad Flat Package, 14 × 14 mm body, 0.5 mm lead pitch, exposed thermal pad, RoHS compliant, rated for –40°C to +85°C.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TFBDNE#50, the R5F526TDDNE#50 reduces memory and removes FPU but retains identical PWM/ELC/ADC timing architecture, while the R5F566TEBDFP#30 adds computational headroom and dual CAN FD at the expense of higher power and larger QFP-144 packaging - making R5F526TFBDNE#50 optimal for cost-sensitive, thermally constrained single-axis inverter designs.

Availability

R5F526TFBDNE#50 is available at Aetrix Electronics and suitable for industrial motor drives, automotive HVAC systems, home appliance inverters, and PLC I/O modules requiring stable component supply, long-term lifecycle support, and IEC60730-compliant firmware execution.

Supply support for R5F526TFBDNE#50 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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications, with over 40 years of MCU innovation and functional safety expertise.

The RX26T Group - including R5F526TFBDNE#50 - is designed specifically for high-precision motor control in inverters, targeting efficiency-critical applications like HVAC, compressors, and industrial pumps where real-time PWM fidelity and safety certification are mandatory.

FAQ

What is the maximum operating frequency and CPU architecture of the R5F526TFBDNE#50?

The R5F526TFBDNE#50 operates at a maximum frequency of 120 MHz using the 32-bit RXv3 CPU core. It achieves 709 CoreMark performance and supports single-cycle instruction execution, IEEE 754-compliant single-precision FPU, and collective register bank save for rapid context switching in real-time motor control loops.

Does the R5F526TFBDNE#50 support IEC60730 Class B functional safety certification?

Yes, the R5F526TFBDNE#50 includes dedicated hardware features for IEC60730 Class B compliance: oscillation-stop detection, RAM test assist (DOC), CRC calculator (CRCA), A/D converter disconnection diagnostics, clock accuracy measurement, and register write protection - all documented in Renesas' functional safety manual R01US0427EJ0100.

What PWM resolution and channel count does the R5F526TFBDNE#50 provide for motor control?

The R5F526TFBDNE#50 delivers 260 ps minimum resolution via its 4-channel HRPWM block synchronized with GPTWa timers, plus 8×32-bit GPTWa channels and 9×16-bit MTU3d channels - enabling precise 3-phase, 5-phase, and single-phase complementary PWM generation with hardware dead-time insertion and phase-counting modes.

How many ADC channels and what sampling capability does the R5F526TFBDNE#50 offer?

The R5F526TFBDNE#50 integrates three 12-bit S12ADH units supporting 4+4+14 analog inputs (22 total), with simultaneous sampling across all units, 0.9 µs minimum conversion time at 60 MHz ADCLK, and channel-dedicated sample-and-hold circuits - essential for current/voltage/temperature acquisition in FOC algorithms.

What package type and thermal rating does the R5F526TFBDNE#50 use?

The R5F526TFBDNE#50 uses the PLQP0100KB-B package: a 100-pin LFQFP with 14 × 14 mm body, 0.5 mm pitch, and exposed thermal pad. It is rated for the D-version operating temperature range of –40°C to +85°C, qualified per JEDEC J-STD-020 moisture sensitivity level 3.