Renesas R5F526TBDDFP#50

Overview

R5F526TBDDFP#50 from Renesas is a 32-bit RXv3 microcontroller designed for motor control and industrial inverter applications, operating at up to 120 MHz with 512 KB code flash, 64 KB SRAM, 16 KB data flash, integrated CAN FD, and high-resolution PWM (260 ps minimum resolution). It features dual-bank flash for safe firmware updates, hardware encryption (AES-128/256), and IEC60730 safety support.

For engineers reviewing the R5F526TBDDFP#50 datasheet, R5F526TBDDFP#50 pinout, R5F526TBDDFP#50 application, or R5F526TBDDFP#50 equivalent, key selection criteria include 120-MHz real-time PWM timing precision, simultaneous sampling across three 12-bit A/D units, 3-phase/5-phase complementary PWM generation, CAN FD compliance per ISO11898-1:2015, and Trusted Secure IP Lite for secure boot and key management.

Technical Context

The R5F526TBDDFP#50 integrates an RXv3 CPU core with single-precision FPU and collective register bank save, enabling deterministic real-time motor control loops. Its clock system combines a PLL-synthesized 120-MHz ICLK with independent PCLKA/PCLKC domains-PCLKC synchronizes GPTWa and HRPWM for sub-nanosecond PWM edge placement, while PCLKD drives the 12-bit S12ADH A/D converter at up to 60 MHz for 0.9 µs/channel conversion.

Peripheral coordination is managed via the Event Link Controller (ELC), which interconnects 183 internal event signals-including MTU3d timer outputs, GPTWa compare matches, and A/D conversion triggers-enabling autonomous operation without CPU intervention during sleep modes. Safety-critical functions are reinforced by MPU, Trusted Memory (TM), register write protection, and dedicated IWDT with windowing and LOCO-based clock source.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin Low-profile Quad Flat Package, 14 mm × 14 mm body, 0.5 mm 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 R5F526TBDDFP#50, the R5F526TADDFP#50 offers identical peripheral set and timing capability at reduced memory density, while the R5F523T7DDFP#50 sacrifices PWM resolution, A/D concurrency, and security features for lower cost and power-making the R5F526TBDDFP#50 optimal for high-fidelity inverter control requiring deterministic real-time performance and functional safety.

Availability

R5F526TBDDFP#50 is available at Aetrix Electronics and suitable for industrial motor drives, home appliance inverters, automotive auxiliary systems, and PLC I/O modules requiring stable component supply, long lifecycle support, and traceable sourcing.

Supply support for R5F526TBDDFP#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 microcontroller innovation.

The RX26T Group-including R5F526TBDDFP#50-is engineered specifically for high-performance motor control, integrating precision PWM, multi-unit A/D, CAN FD, and IEC60730 safety features into a single chip for inverter and servo drive systems.

FAQ

What is the maximum operating frequency and CPU architecture of the R5F526TBDDFP#50?

The R5F526TBDDFP#50 operates at a maximum frequency of 120 MHz using the 32-bit RXv3 CPU core with single-precision FPU and collective register bank save. It delivers 709 CoreMark performance and supports little-endian or big-endian data arrangement. The R5F526TBDDFP#50 uses a linear 4-Gbyte address space, 113 instructions (for 64 KB RAM variants), and on-chip 32×32→64-bit multiplier and 32/32→32-bit divider.

Does the R5F526TBDDFP#50 support CAN FD, and what standard does it comply with?

Yes, the R5F526TBDDFP#50 integrates a CAN FD module compliant with ISO11898-1:2015 for both standard and extended frames. It supports bit rates up to 5 Mbps in FD mode and includes built-in bus fault detection and message buffering. The R5F526TBDDFP#50's CAN FD interface operates independently of the CPU via ELC-triggered transfers, enabling deterministic real-time communication in motor control networks.

What A/D converter configuration does the R5F526TBDDFP#50 provide, and how many channels support simultaneous sampling?

The R5F526TBDDFP#50 includes three 12-bit S12ADH A/D units: Unit 0 (4 channels, 3 sample-and-hold circuits), Unit 1 (4 channels, 3 sample-and-hold circuits), and Unit 2 (14 channels). All three units support simultaneous sampling triggered by shared or peripheral events (e.g., GPTWa compare match), enabling synchronized acquisition of phase currents and DC-link voltage in motor control. Minimum conversion time is 0.9 µs per channel at 60 MHz ADCLK.

What is the role of the Event Link Controller (ELC) in the R5F526TBDDFP#50, and how many event signals does it support?

The Event Link Controller (ELC) in the R5F526TBDDFP#50 enables autonomous peripheral coordination by interconnecting up to 183 internal event signals-such as GPTWa compare matches, MTU3d overflow, or A/D conversion completion-without CPU intervention. This allows deterministic, low-latency operation in sleep modes. The R5F526TBDDFP#50 uses ELC to link PWM timing events to A/D triggers and DMA transfers, reducing software overhead in real-time control loops.

How does the R5F526TBDDFP#50 support IEC60730 Class B compliance for household appliances?

The R5F526TBDDFP#50 provides hardware-accelerated IEC60730 Class B compliance features including oscillation-stop detection, A/D input disconnection check, clock frequency accuracy measurement, independent watchdog timer (IWDT) with windowing, RAM test assistance via DOC, and CRC calculator (CRCA) for memory/data integrity. These are complemented by MPU, Trusted Memory, and register write protection-all verified in the R5F526TBDDFP#50's safety manual R01DS0407EJ0120.