Renesas R5F526TFBDFP#10

Overview

R5F526TFBDFP#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 high-resolution PWM with 260 ps timing resolution. It supports IEC60730 functional safety compliance and operates across –40°C to +85°C.

For engineers reviewing the R5F526TFBDFP#10 datasheet, R5F526TFBDFP#10 pinout, R5F526TFBDFP#10 application, or R5F526TFBDFP#10 equivalent, key selection considerations include its 100-pin LFQFP package, dual-bank flash for safe firmware updates, 3-phase/5-phase complementary PWM capability, hardware-accelerated trigonometric functions (TFUv2), and Trusted Secure IP Lite encryption engine.

Technical Context

The R5F526TFBDFP#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, HOCO (16/18/20 MHz), LOCO (240 kHz), and IWDT-dedicated 120 kHz oscillator - enabling precise timing control across PCLKA (120 MHz), PCLKB (60 MHz), PCLKC (120 MHz), and PCLKD (60 MHz) domains.

Peripheral integration centers on motor control: GPTWa (32-bit × 8 channels) and MTU3d (16-bit × 9 channels) provide synchronized PWM generation with dead-time compensation, while HRPWM delivers 260 ps resolution on GPTW0–GPTW3 outputs. The S12ADH A/D converter includes three sample-and-hold units (4+4+14 channels) and supports simultaneous sampling for current sensing in 3-phase systems.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin Low-Profile Quad Flat Package, 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 R5F526TFBDFP#10, R5F526TDDFK#10 reduces footprint and memory but sacrifices HRPWM and simultaneous sampling capability, while R5F566TEBDFP#10 adds safety certification readiness and larger SRAM at higher cost and power - making R5F526TFBDFP#10 the optimal balance for mainstream industrial motor drives.

Availability

R5F526TFBDFP#10 is available at Aetrix Electronics and suitable for industrial motor drives, automotive HVAC systems, home appliance inverters, and PLC I/O modules requiring stable component supply, long-term lifecycle support, and full traceability.

Supply support for R5F526TFBDFP#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 is designed specifically for high-precision motor control applications, integrating advanced PWM, analog peripherals, and functional safety features to replace discrete motor control ICs with a single-chip solution.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TFBDFP#10?

The R5F526TFBDFP#10 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark points under benchmark conditions. This performance stems from its RXv3 CPU core with single-cycle instruction execution, on-chip 32-bit multiplier/divider, and optimized memory subsystem enabling no-wait access to both 512 KB flash and 64 KB SRAM at full speed.

Does the R5F526TFBDFP#10 support IEC60730 Class B compliance out of the box?

Yes, the R5F526TFBDFP#10 includes dedicated hardware features for IEC60730 Class B compliance: oscillation-stop detection, A/D converter disconnection detection, clock accuracy measurement circuit, independent watchdog timer (IWDTa), RAM test-assisting function via DOC, CRCA, and register write protection. These are documented in the R01DS0407EJ0120 datasheet and require minimal software configuration.

What PWM resolution does the R5F526TFBDFP#10 achieve, and how is it implemented?

The R5F526TFBDFP#10 achieves a minimum PWM timing resolution of 260 ps using its High-Resolution PWM (HRPWM) circuit, which controls edge placement of GPTW0–GPTW3 outputs. This is realized by leveraging the 120 MHz PCLKC domain and fine-grained phase-shift logic - enabling precise dead-time adjustment and reduced torque ripple in 3-phase motor control applications.

How many A/D converter channels does the R5F526TFBDFP#10 support, and what sampling capability does it offer?

The R5F526TFBDFP#10 supports 22 total 12-bit A/D converter channels across three S12ADH units: Unit 0 (4 channels), Unit 1 (4 channels), and Unit 2 (14 channels). It provides simultaneous sampling across all three units using shared trigger sources - essential for accurate current sensing in vector-controlled motor drives.

What communication interfaces are integrated into the R5F526TFBDFP#10?

The R5F526TFBDFP#10 integrates CAN FD (ISO 11898-1:2015), four SCI channels, three RSCI channels (with Manchester encoding and HBS), one I2C bus interface (RIICa, up to 400 kbps), one I3C bus interface (RI3C), and two SPI interfaces (RSPId and RSPIA). This mix supports diagnostics, sensor interfacing, and real-time networked control in industrial environments.