Renesas R5F526TFDGFM#10

Overview

R5F526TFDGFM#10 from Renesas is a 32-bit RXv3 core MCU optimized for motor control and power conversion, operating at up to 120 MHz with 709 CoreMark performance, 512 KB on-chip flash, 64 KB SRAM, and integrated CAN FD, HRPWM (260 ps resolution), and dual-bank flash for safe firmware updates - deployed in industrial inverters and servo drives.

For engineers reviewing the R5F526TFDGFM#10 datasheet, R5F526TFDGFM#10 pinout, R5F526TFDGFM#10 application, or R5F526TFDGFM#10 equivalent, key selection criteria include 120-MHz PWM timing precision, IEC60730-compliant safety features, 3-phase/5-phase complementary PWM support, and 16 KB data flash endurance (100,000 erase/write cycles).

Technical Context

The R5F526TFDGFM#10 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 with 8–24 MHz crystal input, 240 kHz LOCO, and dedicated 120 kHz IWDT oscillator.

Motor control capability is anchored by GPTWa (32-bit × 8 channels), MTU3d (16-bit × 9 channels), and HRPWM (4 channels, 260 ps minimum timing resolution), all synchronized to PCLKC up to 120 MHz. The ELC enables interrupt-free inter-module event chaining - critical for deterministic PWM-A/D synchronization in real-time drive systems.

Key Specifications

Pinout & Package

PLQP0100KB-B is a 100-pin low-profile quad flat package (LFQFP) with 0.5 mm pitch, 14 × 14 mm body size, and exposed thermal pad. It supports 82 general-purpose I/O pins (5-V tolerant, open-drain, pull-up configurable), including dedicated GTIOA/GTIOB pins for GPTW waveform outputs and GTETRG inputs for POEG-triggered fault shutdown.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TADGFM#10, the R5F526TFDGFM#10 delivers double flash/SRAM capacity for complex motion algorithms and dual-bank firmware updates, while R5F566TEBGFM#10 trades HRPWM precision for raw throughput - making the R5F526TFDGFM#10 optimal for SiC/GaN-based systems where nanosecond-level PWM timing is non-negotiable.

Availability

R5F526TFDGFM#10 is available at Aetrix Electronics and suitable for industrial inverters, servo drives, onboard chargers, and uninterruptible power supplies requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F526TFDGFM#10 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 is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.

The RX26T Group - including the R5F526TFDGFM#10 - was designed specifically for high-performance motor control and power conversion applications, integrating precision PWM, safety-certified peripherals, and real-time deterministic event handling.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TFDGFM#10?

The R5F526TFDGFM#10 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark performance. This benchmark reflects its RXv3 CPU core efficiency, single-cycle instruction execution, and optimized memory subsystem - enabling real-time motor control loops with sub-microsecond latency. The R5F526TFDGFM#10 sustains this speed with no wait states across its 512 KB flash and 64 KB SRAM.

Does the R5F526TFDGFM#10 support IEC60730 Class B compliance out of the box?

Yes, the R5F526TFDGFM#10 includes hardware-accelerated IEC60730 Class B safety features: oscillation-stop detection, RAM test assist (DOC), CRC calculator (CRCA), A/D converter disconnection detection, and clock accuracy measurement. These are implemented in dedicated logic - not software libraries - reducing certification effort. The R5F526TFDGFM#10 also supports Trusted Memory and register write protection to prevent runtime corruption.

What PWM resolution does the R5F526TFDGFM#10 achieve, and how is it used in motor control?

The R5F526TFDGFM#10 achieves a minimum PWM timing resolution of 260 ps using its HRPWM module on GPTW0–GPTW3 outputs. This enables precise dead-time control for SiC and GaN power devices, minimizing shoot-through risk during high-frequency switching (>100 kHz). The R5F526TFDGFM#10 uses this capability in 3-phase and 5-phase complementary PWM modes - critical for torque ripple reduction in servo and inverter applications.

How many analog-to-digital converter channels does the R5F526TFDGFM#10 support, and what sampling architecture does it use?

The R5F526TFDGFM#10 supports up to 23 channels across three 12-bit S12ADH units: Unit 0 (4 channels, 3 sample-and-hold), Unit 1 (4 channels, 3 sample-and-hold), and Unit 2 (14 channels). This architecture enables true simultaneous sampling of multiple current/voltage signals - essential for field-oriented control. The R5F526TFDGFM#10's minimum conversion time is 0.9 µs per channel at 60 MHz ADCLK, supporting >1 MSPS aggregate throughput.

Is the R5F526TFDGFM#10 pin-compatible with other RX26T variants, and what package does it use?

Yes, the R5F526TFDGFM#10 uses the PLQP0100KB-B package - a 100-pin LFQFP (14 × 14 mm, 0.5 mm pitch) - and is pin-compatible with other RX26T MCUs in the same package variant, including R5F526TADGFM#10 and R5F526TEDGFM#10. This allows firmware reuse and layout scalability across performance tiers. The R5F526TFDGFM#10 maintains identical pin functions for GPTW, ADC, CAN FD, and ELC interfaces within this footprint.