Renesas R5F526TFAGFN#50

Overview

R5F526TFAGFN#50 from Renesas is a 32-bit RXv3 microcontroller designed for high-performance motor control and industrial inverter applications, operating at up to 120 MHz with 709 CoreMark, 512 KB on-chip flash, 48 KB SRAM, and integrated CAN FD, HRPWM (260 ps resolution), and dual 12-bit D/A converters. It targets real-time closed-loop motor drive systems requiring precise timing, safety compliance (IEC60730), and secure firmware execution.

For engineers reviewing the R5F526TFAGFN#50 datasheet, R5F526TFAGFN#50 pinout, R5F526TFAGFN#50 application, or R5F526TFAGFN#50 equivalent, key selection criteria include its 120-MHz GPTWa timer with 3-phase/5-phase complementary PWM support, 16 KB data flash endurance (100,000 erase/write cycles), IEC60730 self-test features, and Trusted Secure IP Lite AES-128/256 encryption - all in a 64-pin HWQFN (PWQN0064KF-A) package.

Technical Context

The R5F526TFAGFN#50 implements the RXv3 CPU core with single-cycle instruction execution, 32-bit multiplier/divider, and optional single-precision FPU compliant with IEEE754. Its clock system integrates an 8–24 MHz external crystal oscillator, 240-kHz LOCO, and 16/18/20 MHz HOCO, feeding a PLL to generate 120 MHz ICLK and configurable peripheral clocks (PCLKA up to 120 MHz, PCLKB/C/D up to 60–120 MHz).

It supports IEC60730 Class B compliance via oscillation-stop detection, A/D disconnection monitoring, RAM test assistance (DOC), CRCA, and register write protection. The ELC enables event-driven inter-module coordination without CPU intervention - critical for deterministic motor control timing across MTU3d, GPTWa, and S12ADH modules.

Key Specifications

Pinout & Package

PWQN0064KF-A is a 64-pin, 9 × 9 mm, 0.5 mm pitch HWQFN package with exposed thermal pad, rated for –40°C to +105°C operation (G-version). Pin functions are defined per Renesas R01DS0407EJ0120 Rev.1.20, Table 1.2 (Functions by Package).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TFAGFN#50, R5F526TDDFK#50 offers identical functionality in a through-hole-friendly LQFP package but trades thermal efficiency for manufacturability, while R5F523T7DDFK#30 reduces performance and feature set significantly - making it unsuitable for new designs requiring CAN FD, HRPWM, or IEC60730 Class B compliance.

Availability

R5F526TFAGFN#50 is available at Aetrix Electronics and suitable for industrial motor drives, home appliance inverters, PLC I/O modules, and EV onboard chargers requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F526TFAGFN#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 R5F526TFAGFN#50, was engineered specifically for high-efficiency, safety-certifiable motor control - integrating precision PWM, real-time analog sensing, functional safety accelerators, and secure firmware execution in a single chip.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TFAGFN#50?

The R5F526TFAGFN#50 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark under those conditions. This performance stems from its RXv3 CPU core with single-cycle instruction execution, 32-bit multiplier/divider, and optimized memory subsystem enabling no-wait access to both 512 KB flash and 48 KB SRAM. The CoreMark benchmark confirms deterministic real-time capability essential for motor control loops.

Does the R5F526TFAGFN#50 support IEC60730 Class B compliance out of the box?

Yes, the R5F526TFAGFN#50 includes hardware features required for IEC60730 Class B compliance: oscillation-stop detection for the main clock, A/D converter disconnection monitoring, RAM test assistance via DOC, CRCA for data integrity, independent watchdog timer (IWDT) with window function, and register write protection. These are documented in Renesas R01DS0407EJ0120 and enable certified self-test routines without external components.

What PWM resolution does the R5F526TFAGFN#50 achieve, and how is it implemented?

The R5F526TFAGFN#50 achieves a minimum PWM timing resolution of 260 ps using its 4-channel HRPWM circuit synchronized to the GPTWa timer outputs. This is realized by leveraging the 120 MHz system clock and internal fine-phase delay logic within the HRPWM block - not by increasing base clock frequency. The resolution enables precise dead-time adjustment and reduced switching losses in high-frequency inverter topologies.

Which communication interfaces does the R5F526TFAGFN#50 support for industrial networking?

The R5F526TFAGFN#50 supports CAN FD (ISO11898-1:2015), I²C (RIICa, up to 400 kbps), I3C (RI3C, SDR mode), and multiple SPI variants (RSPId at 30 Mbps, RSPIA with TI SSP protocol). CAN FD is the primary industrial fieldbus interface, offering 5 Mbps data rates and extended frame support for diagnostics and firmware updates in motor drive systems.

What is the package type and temperature grade of the R5F526TFAGFN#50?

The R5F526TFAGFN#50 uses the PWQN0064KF-A package: a 64-pin HWQFN measuring 9 × 9 mm with 0.5 mm pitch and an exposed thermal pad. It is rated for the G-version industrial temperature range of –40°C to +105°C, making it suitable for under-hood automotive ancillaries and high-ambient industrial environments where thermal reliability is critical.