Renesas R5F526T8AGFL#50

Overview

R5F526T8AGFL#50 from Renesas is a 32-bit RXv3 microcontroller optimized for motor control and power conversion, featuring a 120 MHz CPU core, 512 KB on-chip code flash, 64 KB SRAM, 16 KB data flash, CAN FD interface, and integrated high-resolution PWM (260 ps timing resolution) for precise inverter gate driving.

For engineers reviewing the R5F526T8AGFL#50 datasheet, R5F526T8AGFL#50 pinout, R5F526T8AGFL#50 application, or R5F526T8AGFL#50 equivalent, this MCU delivers deterministic real-time control with IEC60730-compliant safety features, dual-bank flash for seamless firmware updates, and hardware-accelerated trigonometric functions for field-oriented control (FOC) algorithms.

Technical Context

The R5F526T8AGFL#50 implements the RXv3 CPU core with single-cycle instruction execution at 120 MHz, supporting 113 instructions including DSP and single-precision floating-point operations compliant with IEEE 754. It integrates a memory protection unit (MPU), Trusted Memory (TM) for secure code execution, and register bank save for fast context switching in interrupt-heavy motor control loops.

Its peripheral architecture centers on deterministic timing: GPTWa timers synchronized to PCLKC (up to 120 MHz) drive complementary PWM outputs with configurable dead time, while HRPWM fine-tunes edge placement down to 260 ps. The ELC enables CPU-free inter-module event chaining-e.g., MTU3d timer overflow triggering S12ADH A/D conversion-reducing latency in closed-loop current sensing.

Key Specifications

Pinout & Package

Package: PLQP0100KB-B - 100-pin Low-Profile Quad Flat Package (LFQFP), 14 × 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 applications.

Compared with R5F526T8AGFL#50, the R5F526TADFL#50 reduces package size and memory but sacrifices ADC parallelism and HRPWM channel count, while the R5F566TEBDFP#30 extends computational headroom and protocol support at the cost of thermal budget and design complexity.

Availability

R5F526T8AGFL#50 is available at Aetrix Electronics and suitable for industrial motor drives, electric power steering systems, home appliance inverters, and uninterruptible power supplies requiring stable component supply and long-term lifecycle assurance.

Supply support for R5F526T8AGFL#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, and power solutions for automotive, industrial, and IoT markets.

The RX26T Group is designed specifically for high-precision motor control and power conversion applications, integrating advanced PWM, analog sensing, and functional safety features into a single chip to replace multi-chip motor control solutions.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F526T8AGFL#50?

The R5F526T8AGFL#50 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark performance. This benchmark reflects its RXv3 CPU core efficiency, including single-cycle instruction execution and optimized pipeline design. The R5F526T8AGFL#50 sustains this performance with zero wait-state access to both 512 KB code flash and 64 KB SRAM, enabling deterministic real-time response in motor control applications.

Does the R5F526T8AGFL#50 support IEC60730 Class B compliance out of the box?

Yes, the R5F526T8AGFL#50 includes hardware features required for IEC60730 Class B compliance: oscillation-stop detection, RAM test assist (DOC), CRC calculator (CRCA), independent watchdog timer (IWDT) with window function, and analog input disconnection detection for the S12ADH ADC. These capabilities are implemented in silicon and documented in the R01DS0407EJ0120 datasheet, allowing certified implementations without external safety monitors.

How many ADC channels does the R5F526T8AGFL#50 support, and what is their configuration?

The R5F526T8AGFL#50 supports 22 total 12-bit ADC channels across three units: S12ADH Unit 0 (4 channels), Unit 1 (4 channels), and Unit 2 (14 channels). Units 0 and 1 include dedicated sample-and-hold circuits for simultaneous sampling, enabling precise phase-current measurement in 3-phase motor control. The R5F526T8AGFL#50 achieves 0.9 µs minimum conversion time per channel when ADCLK runs at 60 MHz.

What PWM capabilities does the R5F526T8AGFL#50 offer for motor control?

The R5F526T8AGFL#50 provides three layered PWM resources: MTU3d (9-channel 16-bit) for 3-phase complementary outputs with automatic dead-time insertion, GPTWa (8-channel 32-bit) for flexible waveform generation, and HRPWM (4-channel) overlay delivering 260 ps minimum edge resolution. This combination allows the R5F526T8AGFL#50 to generate non-overlapping gate drive signals with sub-nanosecond timing control, critical for minimizing shoot-through in SiC/GaN inverter designs.

Is the R5F526T8AGFL#50 pin-compatible with other RX26T group MCUs?

No, the R5F526T8AGFL#50 uses the PLQP0100KB-B 100-pin LFQFP package, which is not pin-compatible with smaller RX26T variants like the 64-pin HWQFN or 48-pin QFN packages. Pin assignments for peripherals such as MTU3d outputs, GPTWa channels, and ADC inputs differ across package options. Migration requires PCB redesign; however, software compatibility is maintained within the RX26T family via shared peripheral register maps and toolchain support.