Renesas R5F526TBDDNE#50

Overview

R5F526TBDDNE#50 from Renesas is a 32-bit RXv3 microcontroller optimized for motor control and industrial inverter applications, 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 (ISO 11898-1:2015), and hardware-accelerated 3-phase complementary PWM with dead-time control.

For engineers reviewing the R5F526TBDDNE#50 datasheet, R5F526TBDDNE#50 pinout, R5F526TBDDNE#50 application, or R5F526TBDDNE#50 equivalent, key selection considerations include its 100-pin LQFP package, dual-bank flash for safe firmware updates, 260 ps HRPWM timing resolution, IEC60730-compliant safety features (IWDT, oscillation-stop detection, CRC, RAM test assist), and support for simultaneous sampling across three 12-bit A/D units.

Technical Context

The R5F526TBDDNE#50 implements the RXv3 CPU core with single-cycle instruction execution, 16 general-purpose 32-bit registers, and optional big-/little-endian data handling. It integrates a dedicated 120-kHz IWDT oscillator, memory protection unit (MPU), Trusted Memory (TM) for secure code execution, and event-linking controller (ELC) enabling peripheral-to-peripheral triggering without CPU intervention.

Its timer subsystem combines eight 32-bit GPTWa channels (for high-resolution PWM), nine 16-bit MTU3d channels (for 3-phase inverter control), and four-channel HRPWM with 260 ps minimum timing adjustment-synchronized to PCLKC at up to 120 MHz. The analog subsystem includes three independent 12-bit S12ADH units supporting simultaneous sampling of up to 22 channels, plus six comparator channels and two 12-bit D/A outputs usable as reference sources.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin Low-profile Quad Flat Package (LQFP), 14 mm × 14 mm body, 0.5 mm lead pitch, exposed thermal pad, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TBDDNE#50, the R5F526TADDFP#30 reduces pin count and memory to lower cost but sacrifices simultaneous 3-unit ADC sampling and full 100-pin I/O flexibility; the R5F566TEBDFP#30 delivers higher clock speed and expanded peripherals for advanced motion control, yet requires PCB redesign and toolchain migration.

Availability

R5F526TBDDNE#50 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 support, and IEC60730-certifiable silicon.

Supply support for R5F526TBDDNE#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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX26T Group-including R5F526TBDDNE#50-is engineered specifically for high-efficiency, safety-certifiable motor control in inverters and industrial drives, integrating precision PWM, simultaneous analog capture, and hardware-accelerated safety functions.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TBDDNE#50?

The R5F526TBDDNE#50 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark in benchmark testing. This performance stems from its RXv3 CPU core with single-cycle instruction execution, 16 general-purpose 32-bit registers, and optimized pipeline architecture-enabling deterministic real-time response in motor control applications where loop timing must remain sub-microsecond.

Does the R5F526TBDDNE#50 support IEC60730 Class B compliance out of the box?

Yes, the R5F526TBDDNE#50 includes hardware features required for IEC60730 Class B certification: independent watchdog timer (IWDT) with window function, main clock oscillation-stop detection, CRC calculator (CRCA), DOC-assisted RAM test, register write protection, and self-diagnostic A/D converter functions. These are implemented in silicon and documented in Renesas' Functional Safety Manual for RX26T, allowing certified implementations without external safety monitors.

What analog peripherals are integrated into the R5F526TBDDNE#50?

The R5F526TBDDNE#50 integrates three 12-bit S12ADH analog-to-digital converters (22 total input channels), six-channel CMPCa analog comparators, two 12-bit R12DAb digital-to-analog converters, and an on-die temperature sensor. The S12ADH units support simultaneous sampling across all channels-a key capability for synchronized current and voltage measurement in 3-phase motor control topologies.

What is the package type and pin count of the R5F526TBDDNE#50?

The R5F526TBDDNE#50 uses the PLQP0100KB-B package: a 100-pin Low-profile Quad Flat Package (LQFP) with 14 mm × 14 mm body size, 0.5 mm lead pitch, and exposed thermal pad. This package provides 82 general-purpose I/O pins (5-V tolerant), including dedicated MTU/GPTW waveform outputs, CAN FD transceiver pins, and multiple A/D input channels-optimized for high-density motor control PCB layouts.

How does the Event Link Controller (ELC) enhance real-time performance in the R5F526TBDDNE#50?

The ELC in the R5F526TBDDNE#50 allows 183 internal peripheral events-such as timer overflow, A/D conversion completion, or comparator output change-to directly trigger other peripheral actions (e.g., starting a GPTWa counter or initiating S12ADH sampling) without CPU intervention. This eliminates interrupt latency and ISR overhead, enabling deterministic sub-microsecond response times essential for field-oriented motor control loops running at 20 kHz update rates.