Renesas R5F526TBDDFP#10

Overview

R5F526TBDDFP#10 from Renesas is a 32-bit RXv3 microcontroller optimized for motor control and industrial inverter applications, featuring a 120 MHz CPU core, 512 KB on-chip code flash, 64 KB SRAM, 16 KB data flash, integrated CAN FD interface, and hardware-accelerated 3-phase/5-phase complementary PWM generation with 260 ps HRPWM timing resolution.

For engineers reviewing the R5F526TBDDFP#10 datasheet, R5F526TBDDFP#10 pinout, R5F526TBDDFP#10 application, or R5F526TBDDFP#10 equivalent, this MCU delivers deterministic real-time motor control with IEC60730-compliant safety features, dual-bank flash for seamless firmware updates, and simultaneous sampling across three 12-bit A/D units - critical for high-fidelity current/voltage sensing in PMSM and BLDC drives.

Technical Context

The R5F526TBDDFP#10 integrates the RXv3 CPU core with single-precision FPU, memory protection unit (MPU), and Trusted Secure IP Lite for AES-128/256 encryption and true random number generation. Its clock system combines an 8–24 MHz external crystal with PLL to generate 120 MHz ICLK, while independent PCLKA/PCLKC domains enable concurrent 120 MHz peripheral operation for GPTWa timers and HRPWM modules.

Motor control execution relies on tightly coupled peripherals: MTU3d (9-channel 16-bit timer) and GPTWa (8-channel 32-bit timer) deliver synchronized 3-phase PWM with automatic dead-time insertion and phase-counting mode; S12ADH supports simultaneous sampling across three 12-bit A/D units (Unit 0: 4 ch × 3 SH, Unit 1: 4 ch × 3 SH, Unit 2: 14 ch); CMPCa provides six analog comparators for overcurrent protection with digital filtering.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B (100-pin LQFP, 14 × 14 mm, 0.5 mm pitch). Pin count and I/O configuration match the 100-pin variant of the RX26T Group: 82 general-purpose I/O pins, 2×5-V-tolerant inputs, 15×large-current outputs, full support for MTU3d/GPTWa waveform pins, CAN FD transceiver pins (CANH/CANL), and dedicated HRPWM trigger inputs (GTETRG).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TBDDFP#10, R5F526TADDFP#10 offers lower memory capacity but identical peripheral set and safety features, making it suitable for scaled-down implementations; R5F566TEADFP#10 extends performance and precision for demanding automotive-grade inverters, though at higher cost and power consumption.

Availability

R5F526TBDDFP#10 is available at Aetrix Electronics and suitable for industrial motor drives, home appliance inverters, and EV onboard charger control requiring stable component supply, long-term lifecycle support, and traceable sourcing for safety-critical production.

Supply support for R5F526TBDDFP#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 Corporation is a global semiconductor leader headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX26T Group, including R5F526TBDDFP#10, was designed specifically for high-efficiency motor control in industrial and consumer inverters - integrating precision analog, deterministic PWM, and functional safety features into a single chip.

FAQ

What is the maximum operating frequency and CPU architecture of the R5F526TBDDFP#10?

The R5F526TBDDFP#10 operates at a maximum frequency of 120 MHz using the 32-bit RXv3 CPU core. It achieves 709 CoreMark performance and includes a single-precision floating-point unit compliant with IEEE 754. The core supports collective register bank save, memory protection unit (MPU), and JTAG/FINE debugging interfaces - all confirmed in the R01DS0407EJ0120 Rev.1.20 datasheet.

Does the R5F526TBDDFP#10 support CAN FD, and what standard does it comply with?

Yes, the R5F526TBDDFP#10 integrates one CAN FD module compliant with ISO11898-1:2015, supporting both standard and extended frames. It enables data rates up to 5 Mbps in FD mode and includes built-in message filtering, FIFO buffering, and error counters - verified in Section 1.1 and Table 1.1 of the official Renesas datasheet R01DS0407EJ0120.

How many A/D converter channels does the R5F526TBDDFP#10 support, and what is its sampling capability?

The R5F526TBDDFP#10 supports 22 total 12-bit A/D channels distributed 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 - critical for synchronized current sensing in 3-phase motor control - with a minimum conversion time of 0.9 µs per channel at 60 MHz ADCLK.

What PWM resolution and complementary output capabilities does the R5F526TBDDFP#10 provide?

The R5F526TBDDFP#10 delivers 32-bit GPTWa timers (8 channels) and 16-bit MTU3d timers (9 channels), supporting single-phase (10 outputs), 3-phase (3 outputs), and 5-phase (2 outputs) complementary PWM. Its HRPWM circuit achieves 260 ps minimum timing resolution on GPTW0–GPTW3 outputs - enabling sub-nanosecond dead-time control for SiC/GaN gate drivers.

Is the R5F526TBDDFP#10 qualified for IEC60730 Class B compliance, and which safety features does it include?

Yes, the R5F526TBDDFP#10 includes multiple IEC60730 Class B–compliant features: main clock oscillation stop detection, RAM test assist (DOC), CRC calculator (CRCA), register write protection, analog input disconnection detection, and self-diagnostic A/D functions. These are explicitly documented in the "Useful functions for IEC60730 compliance" section of the R01DS0407EJ0120 datasheet.