Renesas R5F526TFADND#50

Overview

R5F526TFADND#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 3-phase/5-phase complementary PWM generation with hardware dead-time control.

For engineers reviewing the R5F526TFADND#50 datasheet, R5F526TFADND#50 pinout, R5F526TFADND#50 application, or R5F526TFADND#50 equivalent, key selection criteria include its 120 MHz GPTWa timer with 260 ps HRPWM resolution, dual-bank flash for safe firmware updates, IEC60730-compliant safety features (IWDT, oscillation-stop detection, RAM test assist), and support for simultaneous sampling across three 12-bit A/D units.

Technical Context

The R5F526TFADND#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-critical for real-time motor control loops. Its clock system integrates PLL, HOCO/LOCO oscillators, and independent IWDT-dedicated 120 kHz oscillator for fail-safe timing.

Peripheral coordination is managed via the Event Link Controller (ELC), enabling 183 internal event signals to trigger timer starts/stops, A/D conversions, or PWM updates without CPU intervention-reducing latency in closed-loop control. The MTU3d and GPTWa timers operate synchronously with PCLKA (up to 120 MHz) and PCLKC (up to 120 MHz), supporting precise phase-aligned PWM and dead-time compensation.

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 high-current outputs, 1 dedicated input-only pin, full pull-up and open-drain support.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TFADND#50, the R5F526TAAFD#50 reduces package size and memory at the cost of HRPWM capability and A/D concurrency, while the R5F566TEADFP#30 increases processing headroom and CAN FD bandwidth but lacks sub-nanosecond PWM timing-making R5F526TFADND#50 optimal for space-constrained, high-fidelity inverter control where dead-time precision is critical.

Availability

R5F526TFADND#50 is available at Aetrix Electronics and suitable for industrial motor drives, home appliance inverters, automotive auxiliary systems, and PLC I/O modules requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for R5F526TFADND#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and IoT applications.

The RX26T Group-including R5F526TFADND#50-is designed specifically for high-efficiency motor control in inverters, targeting applications demanding precise PWM timing, integrated safety features, and real-time analog signal acquisition.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TFADND#50?

The R5F526TFADND#50 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark in benchmark testing. This performance stems from its RXv3 CPU core with single-cycle instruction execution, on-chip 32-bit multiplier/divider, and barrel shifter-enabling deterministic execution for motor control algorithms. The R5F526TFADND#50 sustains this speed across its 512 KB flash and 64 KB SRAM with no wait states.

Does the R5F526TFADND#50 support IEC60730 Class B functional safety certification?

Yes, the R5F526TFADND#50 includes multiple hardware features required for IEC60730 Class B compliance: an independent watchdog timer (IWDT) with dedicated 120 kHz oscillator, main clock oscillation-stop detection, self-diagnostic A/D functions, RAM test assist via DOC, CRC calculator (CRCA), memory protection unit (MPU), and register write protection. These capabilities enable developers to implement certified safety routines without external components-verified in Renesas' official safety manual R01UM0557EJ0100.

What PWM resolution and complementary modes does the R5F526TFADND#50 support?

The R5F526TFADND#50 supports 3-phase, 5-phase, and single-phase complementary PWM via its GPTWa and MTU3d timers, with hardware dead-time insertion and automatic non-overlap enforcement. Its High-Resolution PWM (HRPWM) module delivers a minimum timing resolution of 260 ps at 120 MHz-enabling precise gate drive timing for SiC and GaN power stages. This resolution is applied to GPTW0–GPTW3 outputs and is confirmed in the R01DS0407EJ0120 datasheet Section 1.1.21.

How many A/D converter channels and sample-and-hold units does the R5F526TFADND#50 include?

The R5F526TFADND#50 includes three 12-bit S12ADH A/D converter units totaling 22 input channels: Unit 0 (4 channels, 3 sample-and-hold circuits), Unit 1 (4 channels, 3 sample-and-hold circuits), and Unit 2 (14 channels, no dedicated sample-and-hold). This configuration supports simultaneous sampling across all units-critical for vector control algorithms requiring synchronized current and voltage measurements. The R5F526TFADND#50's A/D subsystem is detailed in Section 1.1.22 of the R01DS0407EJ0120 datasheet.

What package type and pin count does the R5F526TFADND#50 use?

The R5F526TFADND#50 uses the PLQP0100KB-B package: a 100-pin LQFP measuring 14 × 14 mm with 0.5 mm pitch. It provides 82 general-purpose I/O pins, 2 × 5-V tolerant inputs, 15 high-current outputs, and 1 dedicated input-only pin. This package matches the highest-pin-count variant of the RX26T Group and is explicitly listed in Table 1.2 of the R01DS0407EJ0120 datasheet as supporting full peripheral functionality including all GPTWa, MTU3d, and A/D resources.