Renesas R5F526TFCDFP#50

Overview

R5F526TFCDFP#50 from Renesas is a 32-bit RXv3 microcontroller designed for high-performance motor control and industrial inverter applications. It operates at up to 120 MHz, integrates 512 KB code flash, 64 KB SRAM, 16 KB data flash, dual-bank flash architecture, and supports CAN FD, 3-phase/5-phase complementary PWM, and 260-ps high-resolution PWM timing. It targets real-time embedded systems requiring IEC60730 functional safety compliance.

For engineers reviewing the R5F526TFCDFP#50 datasheet, R5F526TFCDFP#50 pinout, R5F526TFCDFP#50 application, or R5F526TFCDFP#50 equivalent, key selection criteria include its 120-MHz GPTWa timer with 3-phase PWM output, integrated HRPWM (260 ps resolution), on-chip Trusted Secure IP Lite encryption, 12-bit S12ADH ADC with simultaneous sampling across three units, and support for 100-pin LFQFP packaging with 82 general-purpose I/O pins.

Technical Context

The R5F526TFCDFP#50 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 combines an 8–24 MHz external crystal with PLL synthesis to deliver 120 MHz ICLK, while PCLKA (120 MHz), PCLKB (60 MHz), PCLKC (120 MHz), and PCLKD (60 MHz) independently drive peripheral domains including MTU3d, GPTWa, HRPWM, and S12ADH.

It features event-driven operation via the Event Link Controller (ELC), enabling direct inter-module triggering without CPU intervention - critical for deterministic motor control loops. Safety mechanisms include MPU, Trusted Memory (TM), register write protection, oscillation-stop detection, and CRC calculator (CRCA) supporting multiple polynomials for firmware integrity verification.

Key Specifications

Pinout & Package

This device uses a 100-pin LFQFP package (PLQP0100KB-B, 14 × 14 mm, 0.5 mm pitch) with 82 general-purpose I/O pins, 2 × 5-V tolerant inputs, 15 large-current outputs, and dedicated signal groups for PWM, ADC, CAN FD, and debug (JTAG/FINE).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TFCDFP#50, R5F526TADFP#50 reduces memory and analog resources for cost-sensitive applications, while R5F566TEBDFP#50 upgrades CPU speed and SRAM but omits HRPWM - making R5F526TFCDFP#50 optimal for SiC/GaN inverter designs where nanosecond-level PWM timing is non-negotiable.

Availability

R5F526TFCDFP#50 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 assurance, and traceable sourcing.

Supply support for R5F526TFCDFP#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 R5F526TFCDFP#50 - was engineered specifically for high-precision motor control, integrating advanced PWM, analog subsystems, and functional safety features to replace discrete MCU + FPGA architectures in inverter designs.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TFCDFP#50?

The R5F526TFCDFP#50 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 FPU, and optimized memory subsystem - enabling real-time execution of complex motor control algorithms without external acceleration.

Does the R5F526TFCDFP#50 support IEC60730 Class B compliance out of the box?

Yes, the R5F526TFCDFP#50 includes dedicated hardware features for IEC60730 Class B compliance: oscillation-stop detection, A/D converter disconnection check, RAM test assist using DOC, CRC calculator (CRCA), register write protection, and independent watchdog timer (IWDTa). These reduce software overhead and external component count when certifying motor control systems.

What PWM modes and resolution does the R5F526TFCDFP#50 support for inverter gate driving?

The R5F526TFCDFP#50 supports single-phase (10 channels), 3-phase (3 channels), and 5-phase (2 channels) complementary PWM via GPTWa and MTU3d, plus 4-channel HRPWM with 260 ps minimum timing resolution at 120 MHz. This enables precise dead-time insertion and phase alignment critical for SiC/GaN-based inverters operating above 100 kHz.

How many ADC channels and sample-and-hold units does the R5F526TFCDFP#50 integrate?

The R5F526TFCDFP#50 integrates the S12ADH 12-bit ADC with three sample-and-hold units: Unit 0 (4 channels), Unit 1 (4 channels), and Unit 2 (14 channels), totaling 22 configurable analog inputs. Simultaneous sampling across all three units supports accurate three-phase current reconstruction in motor control applications.

Is the R5F526TFCDFP#50 pin-compatible with other RX26T group MCUs?

No, the R5F526TFCDFP#50 uses a 100-pin LFQFP package (PLQP0100KB-B), while other RX26T variants use 48-, 64-, 80-, or 32-pin packages. Pin compatibility is limited to same-package variants (e.g., R5F526TFCDFP#50 and R5F526TFCDFA#50 differ only in tape/reel packaging - not pinout). Always verify mechanical and electrical compatibility using Renesas' official package drawings.