Renesas R5F526TFAGFL#50

Overview

R5F526TFAGFL#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, and high-resolution PWM with 260 ps timing resolution. It supports IEC60730 safety compliance and includes Trusted Secure IP Lite encryption.

For engineers reviewing the R5F526TFAGFL#50 datasheet, R5F526TFAGFL#50 pinout, R5F526TFAGFL#50 application, or R5F526TFAGFL#50 equivalent, this MCU delivers deterministic real-time control for 3-phase and 5-phase motor drives, embedded power conversion, and safety-critical industrial automation where precise PWM timing, analog sensing, and secure firmware execution are required.

Technical Context

The R5F526TFAGFL#50 implements the RXv3 CPU core with single-cycle instruction execution at 120 MHz, supporting IEEE 754-compliant single-precision FPU and collective register bank save for fast context switching. Its clock system integrates PLL, HOCO/LOCO oscillators, and independent IWDT-dedicated 120 kHz oscillator for fail-safe timing.

Peripheral architecture centers on event-driven operation via ELC (183 internal signals), enabling low-latency, CPU-free coordination between GPTWa timers, MTU3d, S12ADH ADCs, and CAN FD - critical for synchronized PWM generation, current sampling, and fault response in motor control loops.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B (100-pin LQFP, 14 × 14 mm, 0.5 mm pitch). Pin count and I/O configuration match full-featured 100-pin variant: 82 general-purpose I/O pins (5-V tolerant, open-drain, pull-up), 2 dedicated 5-V tolerant inputs, 15 large-current outputs, and dedicated signal groups for GPTW/MTU waveform outputs, CAN FD transceiver, and analog inputs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F526TFAGFL#50, R5F526TDDFK#50 offers reduced integration for compact cost-sensitive designs, while R5F566TEADFP#30 delivers significantly higher computational throughput and finer PWM resolution for advanced motion control - both require PCB redesign and firmware adaptation due to non-pin-compatible footprints and peripheral register differences.

Availability

R5F526TFAGFL#50 is available at Aetrix Electronics and suitable for industrial motor drives, automotive HVAC systems, home appliance inverters, and programmable logic controller I/O modules requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F526TFAGFL#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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The RX26T Group, including R5F526TFAGFL#50, was designed specifically for high-efficiency, safety-certifiable motor control in inverters and industrial drives - integrating precision PWM, analog sensing, and functional safety features into a single 120 MHz MCU platform.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526TFAGFL#50?

The R5F526TFAGFL#50 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark performance. This benchmark reflects its RXv3 CPU core's efficiency in executing real-time control algorithms, making it well-suited for demanding motor control tasks where deterministic timing and computational throughput are critical. The R5F526TFAGFL#50 sustains this performance with no wait states on its 512 KB flash memory.

Does the R5F526TFAGFL#50 support CAN FD, and what standard does it comply with?

Yes, the R5F526TFAGFL#50 integrates a CAN FD module compliant with ISO 11898-1:2015, supporting both standard and extended frames with data rates up to 5 Mbps in the data phase. This enables high-bandwidth communication for motor control feedback, diagnostics, and networked drive systems. The R5F526TFAGFL#50 requires an external CAN FD transceiver for physical layer interfacing.

What analog peripherals are included in the R5F526TFAGFL#50 for motor current sensing?

The R5F526TFAGFL#50 includes a 12-bit S12ADH ADC with three sample-and-hold units (22 total channels), six-channel CMPCa analog comparators, and two 12-bit D/A converters. These support simultaneous current sampling across multiple shunt resistors or current transformers, with the D/A providing programmable reference voltages for comparator-based overcurrent detection. All are accessible within the R5F526TFAGFL#50's 100-pin LQFP package.

How does the R5F526TFAGFL#50 support IEC60730 Class B compliance?

The R5F526TFAGFL#50 includes dedicated hardware features for IEC60730 Class B: oscillation-stop detection, RAM test assist (DOC), CRC calculator (CRCA), self-diagnostic ADC functions, and register write protection. These reduce software overhead and external component dependencies for safety monitoring. The R5F526TFAGFL#50 also supports Trusted Memory to protect critical safety routines from unauthorized access or corruption.

What is the package type and pin count of the R5F526TFAGFL#50?

The R5F526TFAGFL#50 is housed in a PLQP0100KB-B package: a 100-pin LQFP measuring 14 × 14 mm with 0.5 mm pitch. It provides 82 general-purpose I/O pins, including 5-V tolerant and open-drain options, plus dedicated pins for GPTWa/MTU3d PWM outputs, CAN FD transceiver, and analog inputs - matching the full-featured variant of the RX26T Group.