Renesas R5F526TFDGND#50

Overview

R5F526TFDGND#50 from Renesas is a 32-bit RXv3 microcontroller optimized for motor control and industrial inverter applications, featuring 120 MHz operation, 512 KB on-chip flash, 64 KB SRAM, 16 KB data flash, integrated CAN FD interface, and 4-channel high-resolution PWM with 260 ps timing resolution. It supports IEC60730 safety compliance and includes Trusted Secure IP Lite encryption.

For engineers reviewing the R5F526TFDGND#50 datasheet, R5F526TFDGND#50 pinout, R5F526TFDGND#50 application, or R5F526TFDGND#50 equivalent, key selection considerations include its 100-pin LFQFP package, dual-bank flash for safe firmware updates, simultaneous sampling across three 12-bit A/D units, 3-phase/5-phase complementary PWM generation, and hardware-accelerated trigonometric functions (TFUv2) for real-time motor vector control.

Technical Context

The R5F526TFDGND#50 implements the RXv3 CPU core with single-cycle instruction execution at 120 MHz, supporting IEEE 754-compliant single-precision FPU and collective register bank save for fast interrupt response. Its clock system integrates PLL, HOCO (16/18/20 MHz), LOCO (240 kHz), and IWDT-dedicated 120 kHz oscillator - enabling precise timing isolation for safety-critical watchdog operation.

Peripheral coordination is managed via Event Link Controller (ELC), allowing 183 internal event signals to trigger timer starts/stops, A/D conversions, or port output changes without CPU intervention. The GPTWa timer unit (32-bit × 8 channels) and MTU3d (16-bit × 9 channels) operate synchronously with PCLKC up to 120 MHz, while HRPWM achieves sub-nanosecond edge placement by fine-tuning GPTW outputs using dedicated 260 ps resolution logic.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TFDGND#50, the R5F526TADNG#50 offers identical peripheral sets in a smaller package but sacrifices 256 KB flash and 16 KB SRAM - limiting complex control algorithms and safety data logging. The R5F523T5DDFK#30 reduces clock speed and omits HRPWM/TFUv2, making it suitable only for basic inverter applications without real-time vector math or nanosecond PWM precision.

Availability

R5F526TFDGND#50 is available at Aetrix Electronics and suitable for industrial motor drives, EV onboard chargers, home appliance inverters, and PLC I/O modules requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F526TFDGND#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 R5F526TFDGND#50, is engineered specifically for high-performance motor control - integrating precision PWM, real-time analog acquisition, safety mechanisms, and cryptographic security into a single chip for inverter and servo drive applications.

FAQ

What is the maximum operating frequency and CPU architecture of the R5F526TFDGND#50?

The R5F526TFDGND#50 operates at a maximum frequency of 120 MHz using the 32-bit RXv3 CPU core. It delivers 709 CoreMark performance and supports single-cycle instruction execution, IEEE 754-compliant single-precision floating-point unit (FPU), and collective register bank save for low-latency interrupt handling. This architecture is optimized for deterministic real-time motor control loops.

Does the R5F526TFDGND#50 support IEC60730 Class B compliance out of the box?

Yes, the R5F526TFDGND#50 includes hardware features required for IEC60730 Class B compliance: oscillation-stop detection, RAM test assist (DOC), ADC disconnection detection, clock frequency accuracy measurement, independent watchdog timer (IWDTa), and register write protection. These are documented in the R01DS0407EJ0120 datasheet and require configuration - not external components - to implement certified self-tests.

What PWM resolution does the R5F526TFDGND#50 achieve, and how is it implemented?

The R5F526TFDGND#50 achieves a minimum PWM edge placement resolution of 260 ps using its dedicated High-Resolution PWM (HRPWM) circuit. This is realized by fine-tuning the output timing of GPTW0–GPTW3 channels through dedicated logic synchronized to the 120 MHz PCLKC clock - enabling precise dead-time control and phase alignment in high-frequency SiC/GaN inverter designs.

How many A/D converter channels does the R5F526TFDGND#50 support, and what sampling capability does it offer?

The R5F526TFDGND#50 supports 22 total 12-bit A/D channels across three independent S12ADH units: Unit 0 (4 channels), Unit 1 (4 channels), and Unit 2 (14 channels). It enables true simultaneous sampling across all units - essential for field-oriented control - with minimum conversion time of 0.9 µs per channel when ADCLK runs at 60 MHz.

Is the R5F526TFDGND#50 pin-compatible with other RX26T Group MCUs like the R5F526TADNG#50?

No, the R5F526TFDGND#50 is not pin-compatible with the R5F526TADNG#50. The R5F526TFDGND#50 uses a 100-pin LFQFP (PLQP0100KB-B) package, while the R5F526TADNG#50 uses a 64-pin HWQFN (PWQN0064KF-A) package. Pin counts, pitch, thermal pad configuration, and I/O allocation differ significantly - requiring separate PCB layouts and schematic symbols.